Central Water Catchment, Central Region, Singapore Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Central Water Catchment, Central Region, Singapore
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
10th Aug 2026
93AQILowest AQI recorded on
9th Aug 2024
29AQISame Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 85 of Moderate air quality on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
Central Water Catchment, Central Region, Singapore
AQI
Day
Night
.
7 AM15th Aug 2026
7 PM
6 AM16th Aug 2026
Day time
Avg. Highest Time
1PM15th Aug
102AQI
Avg. Lowest Time
7AM15th Aug
67AQI
Night time
Avg. Highest Time
10PM15th Aug
92AQI
Avg. Lowest Time
5AM16th Aug
73AQI
In the last 24 hours,
Central Water Catchment's AQI reached its highest point of 102 at 1 PM during the Day, while the lowest point, 67, was recorded at 7 AM during the Day between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Central Water Catchment, Central Region, Singapore
JulAug
18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th
Day
Night
18th Jul 2026527 AMAQI
18th Jul 2026528 AMAQI
18th Jul 2026529 AMAQI
18th Jul 20265210 AMAQI
18th Jul 20265611 AMAQI
18th Jul 20265412 PMAQI
18th Jul 2026501 PMAQI
18th Jul 2026512 PMAQI
18th Jul 2026533 PMAQI
18th Jul 2026464 PMAQI
18th Jul 2026505 PMAQI
18th Jul 2026486 PMAQI
18th Jul 2026487 PMAQI
18th Jul 2026468 PMAQI
18th Jul 2026539 PMAQI
18th Jul 20265910 PMAQI
18th Jul 20264811 PMAQI
19th Jul 20265012 AMAQI
19th Jul 2026551 AMAQI
19th Jul 2026572 AMAQI
19th Jul 2026623 AMAQI
19th Jul 2026634 AMAQI
19th Jul 2026575 AMAQI
19th Jul 2026566 AMAQI
28°C27/30°C
19th Jul 2026557 AMAQI
19th Jul 2026558 AMAQI
19th Jul 2026609 AMAQI
19th Jul 20266410 AMAQI
19th Jul 20266911 AMAQI
19th Jul 20266312 PMAQI
19th Jul 2026601 PMAQI
19th Jul 2026542 PMAQI
19th Jul 2026533 PMAQI
19th Jul 2026564 PMAQI
19th Jul 2026565 PMAQI
19th Jul 2026606 PMAQI
19th Jul 2026607 PMAQI
19th Jul 2026578 PMAQI
19th Jul 2026669 PMAQI
19th Jul 20267110 PMAQI
19th Jul 20267011 PMAQI
20th Jul 20266412 AMAQI
20th Jul 2026671 AMAQI
20th Jul 2026652 AMAQI
20th Jul 2026633 AMAQI
20th Jul 2026644 AMAQI
20th Jul 2026645 AMAQI
20th Jul 2026636 AMAQI
28°C27/30°C
20th Jul 2026587 AMAQI
20th Jul 2026578 AMAQI
20th Jul 2026629 AMAQI
20th Jul 20266710 AMAQI
20th Jul 20266411 AMAQI
20th Jul 20266312 PMAQI
20th Jul 2026621 PMAQI
20th Jul 2026652 PMAQI
20th Jul 2026663 PMAQI
20th Jul 2026664 PMAQI
20th Jul 2026675 PMAQI
20th Jul 2026656 PMAQI
20th Jul 2026677 PMAQI
20th Jul 2026678 PMAQI
20th Jul 2026729 PMAQI
20th Jul 20267110 PMAQI
20th Jul 20267311 PMAQI
21st Jul 20267612 AMAQI
21st Jul 2026791 AMAQI
21st Jul 2026732 AMAQI
21st Jul 2026803 AMAQI
21st Jul 2026784 AMAQI
21st Jul 2026755 AMAQI
21st Jul 2026716 AMAQI
28°C27/30°C
21st Jul 2026707 AMAQI
21st Jul 2026728 AMAQI
21st Jul 2026739 AMAQI
21st Jul 20267310 AMAQI
21st Jul 20267212 PMAQI
21st Jul 2026691 PMAQI
21st Jul 2026662 PMAQI
21st Jul 2026693 PMAQI
21st Jul 2026734 PMAQI
21st Jul 2026715 PMAQI
21st Jul 2026846 PMAQI
21st Jul 2026717 PMAQI
21st Jul 2026748 PMAQI
21st Jul 2026789 PMAQI
21st Jul 20267410 PMAQI
21st Jul 20267611 PMAQI
22nd Jul 20268012 AMAQI
22nd Jul 2026761 AMAQI
22nd Jul 2026742 AMAQI
22nd Jul 2026723 AMAQI
22nd Jul 2026684 AMAQI
22nd Jul 2026695 AMAQI
22nd Jul 2026726 AMAQI
28°C27/30°C
22nd Jul 2026717 AMAQI
22nd Jul 2026698 AMAQI
22nd Jul 2026719 AMAQI
22nd Jul 20266810 AMAQI
22nd Jul 20267811 AMAQI
22nd Jul 20267012 PMAQI
22nd Jul 2026641 PMAQI
22nd Jul 2026542 PMAQI
22nd Jul 2026523 PMAQI
22nd Jul 2026554 PMAQI
22nd Jul 2026675 PMAQI
22nd Jul 2026696 PMAQI
22nd Jul 2026537 PMAQI
22nd Jul 2026578 PMAQI
22nd Jul 2026609 PMAQI
22nd Jul 20265310 PMAQI
22nd Jul 20266011 PMAQI
23rd Jul 20265812 AMAQI
23rd Jul 2026571 AMAQI
23rd Jul 2026662 AMAQI
23rd Jul 2026543 AMAQI
23rd Jul 2026564 AMAQI
23rd Jul 2026585 AMAQI
23rd Jul 2026586 AMAQI
28°C27/29°C
23rd Jul 2026607 AMAQI
23rd Jul 2026608 AMAQI
23rd Jul 2026629 AMAQI
23rd Jul 20265910 AMAQI
23rd Jul 20265911 AMAQI
23rd Jul 20265712 PMAQI
23rd Jul 2026581 PMAQI
23rd Jul 2026562 PMAQI
23rd Jul 2026553 PMAQI
23rd Jul 2026604 PMAQI
23rd Jul 2026645 PMAQI
23rd Jul 2026636 PMAQI
23rd Jul 2026687 PMAQI
23rd Jul 2026768 PMAQI
23rd Jul 2026769 PMAQI
23rd Jul 20267910 PMAQI
23rd Jul 20267411 PMAQI
24th Jul 20268012 AMAQI
24th Jul 2026811 AMAQI
24th Jul 2026832 AMAQI
24th Jul 2026803 AMAQI
24th Jul 2026764 AMAQI
24th Jul 2026795 AMAQI
24th Jul 2026816 AMAQI
28°C26/29°C
24th Jul 2026787 AMAQI
24th Jul 2026798 AMAQI
24th Jul 2026809 AMAQI
24th Jul 20268210 AMAQI
24th Jul 20267411 AMAQI
24th Jul 20267612 PMAQI
24th Jul 2026761 PMAQI
24th Jul 2026742 PMAQI
24th Jul 2026713 PMAQI
24th Jul 2026674 PMAQI
24th Jul 2026675 PMAQI
24th Jul 2026656 PMAQI
24th Jul 2026597 PMAQI
24th Jul 2026588 PMAQI
24th Jul 2026579 PMAQI
24th Jul 20265910 PMAQI
24th Jul 20265711 PMAQI
25th Jul 20266212 AMAQI
25th Jul 2026681 AMAQI
25th Jul 2026642 AMAQI
25th Jul 2026573 AMAQI
25th Jul 2026654 AMAQI
25th Jul 2026705 AMAQI
25th Jul 2026766 AMAQI
28°C27/29°C
25th Jul 2026797 AMAQI
25th Jul 2026788 AMAQI
25th Jul 2026809 AMAQI
25th Jul 20267410 AMAQI
25th Jul 20266611 AMAQI
25th Jul 20267012 PMAQI
25th Jul 2026651 PMAQI
25th Jul 2026652 PMAQI
25th Jul 2026603 PMAQI
25th Jul 2026624 PMAQI
25th Jul 2026585 PMAQI
25th Jul 2026556 PMAQI
25th Jul 2026577 PMAQI
25th Jul 2026558 PMAQI
25th Jul 2026599 PMAQI
25th Jul 20265610 PMAQI
25th Jul 20265911 PMAQI
26th Jul 20265812 AMAQI
26th Jul 2026641 AMAQI
26th Jul 2026622 AMAQI
26th Jul 2026593 AMAQI
26th Jul 2026604 AMAQI
26th Jul 2026585 AMAQI
26th Jul 2026646 AMAQI
28°C27/29°C
26th Jul 2026707 AMAQI
26th Jul 2026668 AMAQI
26th Jul 2026689 AMAQI
26th Jul 20267010 AMAQI
26th Jul 20267011 AMAQI
26th Jul 20266912 PMAQI
26th Jul 2026621 PMAQI
26th Jul 2026642 PMAQI
26th Jul 2026623 PMAQI
26th Jul 2026574 PMAQI
26th Jul 2026595 PMAQI
26th Jul 2026716 PMAQI
26th Jul 2026587 PMAQI
26th Jul 2026648 PMAQI
26th Jul 2026669 PMAQI
26th Jul 20266210 PMAQI
26th Jul 20265411 PMAQI
27th Jul 20265512 AMAQI
27th Jul 2026511 AMAQI
27th Jul 2026512 AMAQI
27th Jul 2026653 AMAQI
27th Jul 2026604 AMAQI
27th Jul 2026565 AMAQI
27th Jul 2026586 AMAQI
27°C27/28°C
27th Jul 2026607 AMAQI
27th Jul 2026608 AMAQI
27th Jul 2026669 AMAQI
27th Jul 20265710 AMAQI
27th Jul 20265511 AMAQI
27th Jul 20266212 PMAQI
27th Jul 2026691 PMAQI
27th Jul 2026552 PMAQI
27th Jul 2026623 PMAQI
27th Jul 2026744 PMAQI
27th Jul 2026765 PMAQI
27th Jul 2026786 PMAQI
27th Jul 2026807 PMAQI
27th Jul 2026928 PMAQI
27th Jul 2026849 PMAQI
27th Jul 20268110 PMAQI
27th Jul 20268211 PMAQI
28th Jul 20268412 AMAQI
28th Jul 2026761 AMAQI
28th Jul 2026762 AMAQI
28th Jul 2026673 AMAQI
28th Jul 2026654 AMAQI
28th Jul 2026565 AMAQI
28th Jul 2026626 AMAQI
27°C27/28°C
28th Jul 2026607 AMAQI
28th Jul 2026628 AMAQI
28th Jul 2026629 AMAQI
28th Jul 20266510 AMAQI
28th Jul 20267011 AMAQI
28th Jul 20265912 PMAQI
28th Jul 2026661 PMAQI
28th Jul 2026622 PMAQI
28th Jul 2026623 PMAQI
28th Jul 2026624 PMAQI
28th Jul 2026645 PMAQI
28th Jul 2026646 PMAQI
28th Jul 2026697 PMAQI
28th Jul 2026628 PMAQI
28th Jul 2026579 PMAQI
28th Jul 20265810 PMAQI
28th Jul 20265911 PMAQI
29th Jul 20266312 AMAQI
29th Jul 2026601 AMAQI
29th Jul 2026582 AMAQI
29th Jul 2026573 AMAQI
29th Jul 2026544 AMAQI
29th Jul 2026535 AMAQI
29th Jul 2026506 AMAQI
28°C27/29°C
29th Jul 2026467 AMAQI
29th Jul 2026548 AMAQI
29th Jul 2026569 AMAQI
29th Jul 20265710 AMAQI
29th Jul 20265611 AMAQI
29th Jul 20265412 PMAQI
29th Jul 2026521 PMAQI
29th Jul 2026572 PMAQI
29th Jul 2026583 PMAQI
29th Jul 2026634 PMAQI
29th Jul 2026645 PMAQI
29th Jul 2026626 PMAQI
29th Jul 2026597 PMAQI
29th Jul 2026588 PMAQI
29th Jul 2026589 PMAQI
29th Jul 20266610 PMAQI
29th Jul 20267111 PMAQI
30th Jul 20266812 AMAQI
30th Jul 2026691 AMAQI
30th Jul 2026722 AMAQI
30th Jul 2026663 AMAQI
30th Jul 2026644 AMAQI
30th Jul 2026635 AMAQI
30th Jul 2026566 AMAQI
28°C27/29°C
30th Jul 2026587 AMAQI
30th Jul 2026578 AMAQI
30th Jul 2026559 AMAQI
30th Jul 20266210 AMAQI
30th Jul 20266011 AMAQI
30th Jul 20265812 PMAQI
30th Jul 2026621 PMAQI
30th Jul 2026532 PMAQI
30th Jul 2026543 PMAQI
30th Jul 2026514 PMAQI
30th Jul 2026585 PMAQI
30th Jul 2026576 PMAQI
30th Jul 2026547 PMAQI
30th Jul 2026538 PMAQI
30th Jul 2026539 PMAQI
30th Jul 20265810 PMAQI
30th Jul 20265811 PMAQI
31st Jul 20265712 AMAQI
31st Jul 2026571 AMAQI
31st Jul 2026562 AMAQI
31st Jul 2026513 AMAQI
31st Jul 2026504 AMAQI
31st Jul 2026535 AMAQI
31st Jul 2026556 AMAQI
28°C27/30°C
31st Jul 2026537 AMAQI
31st Jul 2026598 AMAQI
31st Jul 2026669 AMAQI
31st Jul 20266810 AMAQI
31st Jul 20267311 AMAQI
31st Jul 20266012 PMAQI
31st Jul 2026531 PMAQI
31st Jul 2026542 PMAQI
31st Jul 2026493 PMAQI
31st Jul 2026514 PMAQI
31st Jul 2026535 PMAQI
31st Jul 2026546 PMAQI
31st Jul 2026557 PMAQI
31st Jul 2026628 PMAQI
31st Jul 2026589 PMAQI
31st Jul 20265910 PMAQI
31st Jul 20266211 PMAQI
1st Aug 20266212 AMAQI
1st Aug 2026641 AMAQI
1st Aug 2026642 AMAQI
1st Aug 2026583 AMAQI
1st Aug 2026624 AMAQI
1st Aug 2026545 AMAQI
1st Aug 2026576 AMAQI
28°C27/30°C
1st Aug 2026627 AMAQI
1st Aug 2026658 AMAQI
1st Aug 2026599 AMAQI
1st Aug 20266710 AMAQI
1st Aug 20266411 AMAQI
1st Aug 20265712 PMAQI
1st Aug 2026571 PMAQI
1st Aug 2026602 PMAQI
1st Aug 2026583 PMAQI
1st Aug 2026574 PMAQI
1st Aug 2026545 PMAQI
1st Aug 2026536 PMAQI
1st Aug 2026537 PMAQI
1st Aug 2026498 PMAQI
1st Aug 2026579 PMAQI
1st Aug 20265910 PMAQI
1st Aug 20266411 PMAQI
2nd Aug 20266412 AMAQI
2nd Aug 2026591 AMAQI
2nd Aug 2026582 AMAQI
2nd Aug 2026583 AMAQI
2nd Aug 2026594 AMAQI
2nd Aug 2026585 AMAQI
2nd Aug 2026606 AMAQI
28°C27/30°C
2nd Aug 2026607 AMAQI
2nd Aug 2026628 AMAQI
2nd Aug 2026629 AMAQI
2nd Aug 20266710 AMAQI
2nd Aug 20265811 AMAQI
2nd Aug 20265812 PMAQI
2nd Aug 2026601 PMAQI
2nd Aug 2026642 PMAQI
2nd Aug 2026653 PMAQI
2nd Aug 2026644 PMAQI
2nd Aug 2026675 PMAQI
2nd Aug 2026666 PMAQI
2nd Aug 2026607 PMAQI
2nd Aug 2026588 PMAQI
2nd Aug 2026609 PMAQI
2nd Aug 20266610 PMAQI
2nd Aug 20266611 PMAQI
3rd Aug 20266712 AMAQI
3rd Aug 2026621 AMAQI
3rd Aug 2026652 AMAQI
3rd Aug 2026623 AMAQI
3rd Aug 2026604 AMAQI
3rd Aug 2026645 AMAQI
3rd Aug 2026786 AMAQI
29°C27/30°C
3rd Aug 2026747 AMAQI
3rd Aug 2026738 AMAQI
3rd Aug 2026769 AMAQI
3rd Aug 20268010 AMAQI
3rd Aug 20267611 AMAQI
3rd Aug 20267612 PMAQI
3rd Aug 2026691 PMAQI
3rd Aug 2026672 PMAQI
3rd Aug 2026673 PMAQI
3rd Aug 2026694 PMAQI
3rd Aug 2026695 PMAQI
3rd Aug 2026736 PMAQI
3rd Aug 2026647 PMAQI
3rd Aug 2026768 PMAQI
3rd Aug 2026769 PMAQI
3rd Aug 20267410 PMAQI
3rd Aug 20267211 PMAQI
4th Aug 20266612 AMAQI
4th Aug 2026651 AMAQI
4th Aug 2026602 AMAQI
4th Aug 2026633 AMAQI
4th Aug 2026554 AMAQI
4th Aug 2026595 AMAQI
4th Aug 2026626 AMAQI
29°C27/30°C
4th Aug 2026597 AMAQI
4th Aug 2026568 AMAQI
4th Aug 2026579 AMAQI
4th Aug 20266210 AMAQI
4th Aug 20266211 AMAQI
4th Aug 20266012 PMAQI
4th Aug 2026581 PMAQI
4th Aug 2026602 PMAQI
4th Aug 2026633 PMAQI
4th Aug 2026654 PMAQI
4th Aug 2026655 PMAQI
4th Aug 2026626 PMAQI
4th Aug 2026627 PMAQI
4th Aug 2026648 PMAQI
4th Aug 2026659 PMAQI
4th Aug 20266010 PMAQI
4th Aug 20265511 PMAQI
5th Aug 20265512 AMAQI
5th Aug 2026541 AMAQI
5th Aug 2026552 AMAQI
5th Aug 2026533 AMAQI
5th Aug 2026474 AMAQI
5th Aug 2026465 AMAQI
5th Aug 2026426 AMAQI
28°C27/30°C
5th Aug 2026447 AMAQI
5th Aug 2026448 AMAQI
5th Aug 2026469 AMAQI
5th Aug 20265210 AMAQI
5th Aug 20265411 AMAQI
5th Aug 20265812 PMAQI
5th Aug 2026571 PMAQI
5th Aug 2026622 PMAQI
5th Aug 2026643 PMAQI
5th Aug 2026704 PMAQI
5th Aug 2026735 PMAQI
5th Aug 2026756 PMAQI
5th Aug 2026757 PMAQI
5th Aug 2026718 PMAQI
5th Aug 2026749 PMAQI
5th Aug 20267410 PMAQI
5th Aug 20267311 PMAQI
6th Aug 20266912 AMAQI
6th Aug 2026761 AMAQI
6th Aug 2026732 AMAQI
6th Aug 2026713 AMAQI
6th Aug 2026694 AMAQI
6th Aug 2026705 AMAQI
6th Aug 2026726 AMAQI
29°C27/30°C
6th Aug 2026707 AMAQI
6th Aug 2026768 AMAQI
6th Aug 2026819 AMAQI
6th Aug 20268910 AMAQI
6th Aug 20268711 AMAQI
6th Aug 20269312 PMAQI
6th Aug 2026921 PMAQI
6th Aug 2026902 PMAQI
6th Aug 2026873 PMAQI
6th Aug 2026854 PMAQI
6th Aug 2026865 PMAQI
6th Aug 2026826 PMAQI
6th Aug 2026827 PMAQI
6th Aug 2026828 PMAQI
6th Aug 2026839 PMAQI
6th Aug 20268510 PMAQI
6th Aug 20267811 PMAQI
7th Aug 20268812 AMAQI
7th Aug 2026711 AMAQI
7th Aug 2026732 AMAQI
7th Aug 2026523 AMAQI
7th Aug 2026534 AMAQI
7th Aug 2026605 AMAQI
7th Aug 2026626 AMAQI
29°C27/30°C
7th Aug 2026627 AMAQI
7th Aug 2026558 AMAQI
7th Aug 2026569 AMAQI
7th Aug 20265610 AMAQI
7th Aug 20265711 AMAQI
7th Aug 20265512 PMAQI
7th Aug 2026681 PMAQI
7th Aug 2026682 PMAQI
7th Aug 2026673 PMAQI
7th Aug 2026624 PMAQI
7th Aug 2026685 PMAQI
7th Aug 2026656 PMAQI
7th Aug 2026717 PMAQI
7th Aug 2026728 PMAQI
7th Aug 2026769 PMAQI
7th Aug 20268010 PMAQI
7th Aug 20266911 PMAQI
8th Aug 20266512 AMAQI
8th Aug 2026681 AMAQI
8th Aug 2026662 AMAQI
8th Aug 2026583 AMAQI
8th Aug 2026554 AMAQI
8th Aug 2026535 AMAQI
8th Aug 2026546 AMAQI
28°C27/30°C
8th Aug 2026537 AMAQI
8th Aug 2026558 AMAQI
8th Aug 2026599 AMAQI
8th Aug 20266210 AMAQI
8th Aug 20266211 AMAQI
8th Aug 20266512 PMAQI
8th Aug 2026691 PMAQI
8th Aug 2026792 PMAQI
8th Aug 2026763 PMAQI
8th Aug 2026854 PMAQI
8th Aug 2026865 PMAQI
8th Aug 2026876 PMAQI
8th Aug 2026837 PMAQI
8th Aug 2026928 PMAQI
8th Aug 2026979 PMAQI
8th Aug 20269310 PMAQI
8th Aug 20269211 PMAQI
9th Aug 20269812 AMAQI
9th Aug 2026991 AMAQI
9th Aug 2026942 AMAQI
9th Aug 2026903 AMAQI
9th Aug 2026784 AMAQI
9th Aug 2026805 AMAQI
9th Aug 2026826 AMAQI
29°C28/30°C
9th Aug 2026807 AMAQI
9th Aug 2026838 AMAQI
9th Aug 20261099 AMAQI
9th Aug 202611210 AMAQI
9th Aug 20269211 AMAQI
9th Aug 20267512 PMAQI
9th Aug 2026741 PMAQI
9th Aug 2026782 PMAQI
9th Aug 2026693 PMAQI
9th Aug 2026684 PMAQI
9th Aug 2026735 PMAQI
9th Aug 2026676 PMAQI
9th Aug 2026747 PMAQI
9th Aug 2026788 PMAQI
9th Aug 2026749 PMAQI
9th Aug 20267010 PMAQI
9th Aug 20267611 PMAQI
10th Aug 20269012 AMAQI
10th Aug 2026831 AMAQI
10th Aug 2026852 AMAQI
10th Aug 2026863 AMAQI
10th Aug 2026764 AMAQI
10th Aug 2026785 AMAQI
10th Aug 2026866 AMAQI
28°C27/30°C
10th Aug 2026887 AMAQI
10th Aug 2026908 AMAQI
10th Aug 20261029 AMAQI
10th Aug 20269510 AMAQI
10th Aug 20269411 AMAQI
10th Aug 20269512 PMAQI
10th Aug 20261151 PMAQI
10th Aug 20261002 PMAQI
10th Aug 2026963 PMAQI
10th Aug 2026954 PMAQI
10th Aug 2026905 PMAQI
10th Aug 2026936 PMAQI
10th Aug 2026947 PMAQI
10th Aug 20261048 PMAQI
10th Aug 20261059 PMAQI
10th Aug 20269710 PMAQI
10th Aug 20269411 PMAQI
11th Aug 20269212 AMAQI
11th Aug 2026851 AMAQI
11th Aug 2026802 AMAQI
11th Aug 2026803 AMAQI
11th Aug 2026804 AMAQI
11th Aug 2026825 AMAQI
11th Aug 2026836 AMAQI
29°C28/30°C
11th Aug 2026807 AMAQI
11th Aug 2026828 AMAQI
11th Aug 2026849 AMAQI
11th Aug 20268310 AMAQI
11th Aug 20268811 AMAQI
11th Aug 20269412 PMAQI
11th Aug 2026941 PMAQI
11th Aug 2026922 PMAQI
11th Aug 2026963 PMAQI
11th Aug 2026994 PMAQI
11th Aug 2026875 PMAQI
11th Aug 2026926 PMAQI
11th Aug 2026817 PMAQI
11th Aug 2026948 PMAQI
11th Aug 20261029 PMAQI
11th Aug 20269410 PMAQI
11th Aug 20268911 PMAQI
12th Aug 20268612 AMAQI
12th Aug 2026821 AMAQI
12th Aug 2026812 AMAQI
12th Aug 2026823 AMAQI
12th Aug 2026744 AMAQI
12th Aug 2026765 AMAQI
12th Aug 2026766 AMAQI
29°C28/30°C
12th Aug 2026737 AMAQI
12th Aug 2026738 AMAQI
12th Aug 2026789 AMAQI
12th Aug 20267110 AMAQI
12th Aug 20267811 AMAQI
12th Aug 20267812 PMAQI
12th Aug 2026901 PMAQI
12th Aug 2026802 PMAQI
12th Aug 2026863 PMAQI
12th Aug 2026904 PMAQI
12th Aug 2026745 PMAQI
12th Aug 2026856 PMAQI
12th Aug 2026857 PMAQI
12th Aug 2026908 PMAQI
12th Aug 2026889 PMAQI
12th Aug 20269210 PMAQI
12th Aug 20268411 PMAQI
13th Aug 20267612 AMAQI
13th Aug 2026711 AMAQI
13th Aug 2026672 AMAQI
13th Aug 2026683 AMAQI
13th Aug 2026684 AMAQI
13th Aug 2026685 AMAQI
13th Aug 2026716 AMAQI
28°C27/30°C
13th Aug 2026807 AMAQI
13th Aug 2026848 AMAQI
13th Aug 2026889 AMAQI
13th Aug 20268510 AMAQI
13th Aug 20268511 AMAQI
13th Aug 20269012 PMAQI
13th Aug 2026841 PMAQI
13th Aug 2026822 PMAQI
13th Aug 2026843 PMAQI
13th Aug 2026924 PMAQI
13th Aug 2026865 PMAQI
13th Aug 2026906 PMAQI
13th Aug 2026907 PMAQI
13th Aug 2026878 PMAQI
13th Aug 2026969 PMAQI
13th Aug 20269210 PMAQI
13th Aug 20269511 PMAQI
14th Aug 20268712 AMAQI
14th Aug 2026931 AMAQI
14th Aug 2026932 AMAQI
14th Aug 2026903 AMAQI
14th Aug 2026844 AMAQI
14th Aug 2026855 AMAQI
14th Aug 2026856 AMAQI
28°C27/30°C
14th Aug 2026847 AMAQI
14th Aug 2026798 AMAQI
14th Aug 2026789 AMAQI
14th Aug 20267810 AMAQI
14th Aug 20268011 AMAQI
14th Aug 20267612 PMAQI
14th Aug 2026781 PMAQI
14th Aug 2026812 PMAQI
14th Aug 2026853 PMAQI
14th Aug 2026834 PMAQI
14th Aug 20261005 PMAQI
14th Aug 2026926 PMAQI
14th Aug 2026967 PMAQI
14th Aug 2026978 PMAQI
14th Aug 20261029 PMAQI
14th Aug 202610810 PMAQI
14th Aug 20269211 PMAQI
15th Aug 20269212 AMAQI
15th Aug 2026901 AMAQI
15th Aug 2026862 AMAQI
15th Aug 2026853 AMAQI
15th Aug 2026854 AMAQI
15th Aug 2026765 AMAQI
15th Aug 2026696 AMAQI
29°C28/29°C
15th Aug 2026677 AMAQI
15th Aug 2026688 AMAQI
15th Aug 2026719 AMAQI
15th Aug 20267810 AMAQI
15th Aug 20268611 AMAQI
15th Aug 20268912 PMAQI
15th Aug 20261021 PMAQI
15th Aug 2026942 PMAQI
15th Aug 2026923 PMAQI
15th Aug 2026884 PMAQI
15th Aug 2026885 PMAQI
15th Aug 2026946 PMAQI
15th Aug 2026857 PMAQI
15th Aug 2026878 PMAQI
15th Aug 2026899 PMAQI
15th Aug 20269210 PMAQI
15th Aug 20269211 PMAQI
16th Aug 20268112 AMAQI
16th Aug 2026871 AMAQI
16th Aug 2026822 AMAQI
16th Aug 2026823 AMAQI
16th Aug 2026764 AMAQI
16th Aug 2026735 AMAQI
16th Aug 2026786 AMAQI
28°C26/29°C
16th Aug 2026807 AMAQI
7 AM16th Aug 2026788 AMAQI
16th Aug 2026809 AMAQI
16th Aug 20268010 AMAQI
16th Aug 20267811 AMAQI
16th Aug 20268512 PMAQI
16th Aug 2026781 PMAQI
1 PM16th Aug 2026822 PMAQI
16th Aug 2026823 PMAQI
16th Aug 2026814 PMAQI
16th Aug 2026855 PMAQI
16th Aug 2026856 PMAQI
16th Aug 2026807 PMAQI
7 PM16th Aug 2026748 PMAQI
16th Aug 2026789 PMAQI
16th Aug 20267610 PMAQI
16th Aug 20268111 PMAQI
1 AM
6 AM
28°C28/29°C
Day time
Avg. Highest Time
9 AM - 7 PM
70AQI
11 hours / Day
330 hours / Month
Avg. Lowest Time
7 AM - 8 AM
67AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 7 PM (Avg. 70), while the lowest AQI was between 7 AM to 8 AM (Avg. 67).
Night time
Avg. Highest Time
8 PM - 11 PM
73AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
4 AM - 6 AM
65AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 73), while the lowest AQI was between 4 AM to 6 AM (Avg. 65).
2026 Days Vs Air Quality
Central Water Catchment, Central Region, Singapore
2026
61%
137
39%
87
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Good
137 DaysModerate
87 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 61%
Health Risk Level:
Moderate
In 2026, 61% of 228 days were within WHO’s safe air quality limits, and 39% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Central Water Catchment, Central Region, Singapore
AQI levels in 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
52AQI (US)
52AQI (US)
2nd January 2026
54AQI (US)
54AQI (US)
3rd January 2026
55AQI (US)
55AQI (US)
4th January 2026
55AQI (US)
55AQI (US)
5th January 2026
46AQI (US)
46AQI (US)
6th January 2026
39AQI (US)
39AQI (US)
7th January 2026
32AQI (US)
32AQI (US)
8th January 2026
50AQI (US)
50AQI (US)
9th January 2026
54AQI (US)
54AQI (US)
10th January 2026
58AQI (US)
58AQI (US)
11th January 2026
57AQI (US)
57AQI (US)
12th January 2026
52AQI (US)
52AQI (US)
13th January 2026
57AQI (US)
57AQI (US)
14th January 2026
36AQI (US)
36AQI (US)
15th January 2026
60AQI (US)
60AQI (US)
16th January 2026
58AQI (US)
58AQI (US)
17th January 2026
56AQI (US)
56AQI (US)
18th January 2026
58AQI (US)
58AQI (US)
19th January 2026
48AQI (US)
48AQI (US)
20th January 2026
55AQI (US)
55AQI (US)
21st January 2026
50AQI (US)
50AQI (US)
22nd January 2026
47AQI (US)
47AQI (US)
23rd January 2026
30AQI (US)
30AQI (US)
24th January 2026
36AQI (US)
36AQI (US)
25th January 2026
25AQI (US)
25AQI (US)
26th January 2026
30AQI (US)
30AQI (US)
27th January 2026
36AQI (US)
36AQI (US)
28th January 2026
28AQI (US)
28AQI (US)
29th January 2026
20AQI (US)
20AQI (US)
30th January 2026
41AQI (US)
41AQI (US)
31st January 2026
26AQI (US)
26AQI (US)
1st February 2026
29AQI (US)
29AQI (US)
2nd February 2026
53AQI (US)
53AQI (US)
3rd February 2026
38AQI (US)
38AQI (US)
4th February 2026
24AQI (US)
24AQI (US)
5th February 2026
35AQI (US)
35AQI (US)
6th February 2026
31AQI (US)
31AQI (US)
7th February 2026
43AQI (US)
43AQI (US)
8th February 2026
69AQI (US)
69AQI (US)
9th February 2026
39AQI (US)
39AQI (US)
10th February 2026
30AQI (US)
30AQI (US)
11th February 2026
30AQI (US)
30AQI (US)
12th February 2026
44AQI (US)
44AQI (US)
13th February 2026
56AQI (US)
56AQI (US)
14th February 2026
50AQI (US)
50AQI (US)
15th February 2026
28AQI (US)
28AQI (US)
16th February 2026
27AQI (US)
27AQI (US)
17th February 2026
33AQI (US)
33AQI (US)
18th February 2026
15AQI (US)
15AQI (US)
19th February 2026
41AQI (US)
41AQI (US)
20th February 2026
50AQI (US)
50AQI (US)
21st February 2026
52AQI (US)
52AQI (US)
22nd February 2026
51AQI (US)
51AQI (US)
23rd February 2026
72AQI (US)
72AQI (US)
24th February 2026
50AQI (US)
50AQI (US)
25th February 2026
46AQI (US)
46AQI (US)
26th February 2026
39AQI (US)
39AQI (US)
27th February 2026
36AQI (US)
36AQI (US)
28th February 2026
57AQI (US)
57AQI (US)
1st March 2026
49AQI (US)
49AQI (US)
2nd March 2026
44AQI (US)
44AQI (US)
3rd March 2026
54AQI (US)
54AQI (US)
4th March 2026
47AQI (US)
47AQI (US)
5th March 2026
47AQI (US)
47AQI (US)
6th March 2026
36AQI (US)
36AQI (US)
7th March 2026
41AQI (US)
41AQI (US)
8th March 2026
52AQI (US)
52AQI (US)
9th March 2026
42AQI (US)
42AQI (US)
10th March 2026
50AQI (US)
50AQI (US)
11th March 2026
47AQI (US)
47AQI (US)
12th March 2026
40AQI (US)
40AQI (US)
13th March 2026
17AQI (US)
17AQI (US)
14th March 2026
34AQI (US)
34AQI (US)
15th March 2026
40AQI (US)
40AQI (US)
16th March 2026
41AQI (US)
41AQI (US)
17th March 2026
23AQI (US)
23AQI (US)
18th March 2026
43AQI (US)
43AQI (US)
19th March 2026
46AQI (US)
46AQI (US)
20th March 2026
48AQI (US)
48AQI (US)
21st March 2026
51AQI (US)
51AQI (US)
22nd March 2026
54AQI (US)
54AQI (US)
23rd March 2026
51AQI (US)
51AQI (US)
24th March 2026
70AQI (US)
70AQI (US)
25th March 2026
53AQI (US)
53AQI (US)
26th March 2026
59AQI (US)
59AQI (US)
27th March 2026
51AQI (US)
51AQI (US)
28th March 2026
46AQI (US)
46AQI (US)
29th March 2026
60AQI (US)
60AQI (US)
30th March 2026
82AQI (US)
82AQI (US)
31st March 2026
71AQI (US)
71AQI (US)
1st April 2026
63AQI (US)
63AQI (US)
2nd April 2026
63AQI (US)
63AQI (US)
3rd April 2026
55AQI (US)
55AQI (US)
4th April 2026
50AQI (US)
50AQI (US)
5th April 2026
53AQI (US)
53AQI (US)
6th April 2026
36AQI (US)
36AQI (US)
7th April 2026
58AQI (US)
58AQI (US)
8th April 2026
75AQI (US)
75AQI (US)
9th April 2026
65AQI (US)
65AQI (US)
10th April 2026
58AQI (US)
58AQI (US)
11th April 2026
47AQI (US)
47AQI (US)
12th April 2026
37AQI (US)
37AQI (US)
13th April 2026
38AQI (US)
38AQI (US)
14th April 2026
53AQI (US)
53AQI (US)
15th April 2026
46AQI (US)
46AQI (US)
16th April 2026
30AQI (US)
30AQI (US)
17th April 2026
18th April 2026
37AQI (US)
37AQI (US)
19th April 2026
46AQI (US)
46AQI (US)
20th April 2026
41AQI (US)
41AQI (US)
21st April 2026
36AQI (US)
36AQI (US)
22nd April 2026
23rd April 2026
52AQI (US)
52AQI (US)
24th April 2026
40AQI (US)
40AQI (US)
25th April 2026
42AQI (US)
42AQI (US)
26th April 2026
50AQI (US)
50AQI (US)
27th April 2026
32AQI (US)
32AQI (US)
28th April 2026
34AQI (US)
34AQI (US)
29th April 2026
26AQI (US)
26AQI (US)
30th April 2026
49AQI (US)
49AQI (US)
1st May 2026
51AQI (US)
51AQI (US)
2nd May 2026
41AQI (US)
41AQI (US)
3rd May 2026
37AQI (US)
37AQI (US)
4th May 2026
53AQI (US)
53AQI (US)
5th May 2026
73AQI (US)
73AQI (US)
6th May 2026
56AQI (US)
56AQI (US)
7th May 2026
57AQI (US)
57AQI (US)
8th May 2026
27AQI (US)
27AQI (US)
9th May 2026
10th May 2026
34AQI (US)
34AQI (US)
11th May 2026
33AQI (US)
33AQI (US)
12th May 2026
33AQI (US)
33AQI (US)
13th May 2026
25AQI (US)
25AQI (US)
14th May 2026
32AQI (US)
32AQI (US)
15th May 2026
29AQI (US)
29AQI (US)
16th May 2026
70AQI (US)
70AQI (US)
17th May 2026
54AQI (US)
54AQI (US)
18th May 2026
50AQI (US)
50AQI (US)
19th May 2026
42AQI (US)
42AQI (US)
20th May 2026
54AQI (US)
54AQI (US)
21st May 2026
51AQI (US)
51AQI (US)
22nd May 2026
42AQI (US)
42AQI (US)
23rd May 2026
39AQI (US)
39AQI (US)
24th May 2026
46AQI (US)
46AQI (US)
25th May 2026
33AQI (US)
33AQI (US)
26th May 2026
35AQI (US)
35AQI (US)
27th May 2026
37AQI (US)
37AQI (US)
28th May 2026
45AQI (US)
45AQI (US)
29th May 2026
48AQI (US)
48AQI (US)
30th May 2026
30AQI (US)
30AQI (US)
31st May 2026
32AQI (US)
32AQI (US)
1st June 2026
39AQI (US)
39AQI (US)
2nd June 2026
48AQI (US)
48AQI (US)
3rd June 2026
54AQI (US)
54AQI (US)
4th June 2026
33AQI (US)
33AQI (US)
5th June 2026
28AQI (US)
28AQI (US)
6th June 2026
27AQI (US)
27AQI (US)
7th June 2026
23AQI (US)
23AQI (US)
8th June 2026
22AQI (US)
22AQI (US)
9th June 2026
25AQI (US)
25AQI (US)
10th June 2026
25AQI (US)
25AQI (US)
11th June 2026
28AQI (US)
28AQI (US)
12th June 2026
31AQI (US)
31AQI (US)
13th June 2026
37AQI (US)
37AQI (US)
14th June 2026
31AQI (US)
31AQI (US)
15th June 2026
53AQI (US)
53AQI (US)
16th June 2026
28AQI (US)
28AQI (US)
17th June 2026
26AQI (US)
26AQI (US)
18th June 2026
29AQI (US)
29AQI (US)
19th June 2026
27AQI (US)
27AQI (US)
20th June 2026
25AQI (US)
25AQI (US)
21st June 2026
23AQI (US)
23AQI (US)
22nd June 2026
22AQI (US)
22AQI (US)
23rd June 2026
25AQI (US)
25AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
35AQI (US)
35AQI (US)
26th June 2026
41AQI (US)
41AQI (US)
27th June 2026
32AQI (US)
32AQI (US)
28th June 2026
32AQI (US)
32AQI (US)
29th June 2026
27AQI (US)
27AQI (US)
30th June 2026
25AQI (US)
25AQI (US)
1st July 2026
28AQI (US)
28AQI (US)
2nd July 2026
42AQI (US)
42AQI (US)
3rd July 2026
60AQI (US)
60AQI (US)
4th July 2026
63AQI (US)
63AQI (US)
5th July 2026
48AQI (US)
48AQI (US)
6th July 2026
28AQI (US)
28AQI (US)
7th July 2026
28AQI (US)
28AQI (US)
8th July 2026
27AQI (US)
27AQI (US)
9th July 2026
29AQI (US)
29AQI (US)
10th July 2026
30AQI (US)
30AQI (US)
11th July 2026
58AQI (US)
58AQI (US)
12th July 2026
68AQI (US)
68AQI (US)
13th July 2026
32AQI (US)
32AQI (US)
14th July 2026
34AQI (US)
34AQI (US)
15th July 2026
35AQI (US)
35AQI (US)
16th July 2026
48AQI (US)
48AQI (US)
17th July 2026
44AQI (US)
44AQI (US)
18th July 2026
51AQI (US)
51AQI (US)
19th July 2026
60AQI (US)
60AQI (US)
20th July 2026
65AQI (US)
65AQI (US)
21st July 2026
74AQI (US)
74AQI (US)
22nd July 2026
66AQI (US)
66AQI (US)
23rd July 2026
62AQI (US)
62AQI (US)
24th July 2026
72AQI (US)
72AQI (US)
25th July 2026
65AQI (US)
65AQI (US)
26th July 2026
63AQI (US)
63AQI (US)
27th July 2026
66AQI (US)
66AQI (US)
28th July 2026
65AQI (US)
65AQI (US)
29th July 2026
58AQI (US)
58AQI (US)
30th July 2026
59AQI (US)
59AQI (US)
31st July 2026
57AQI (US)
57AQI (US)
1st August 2026
59AQI (US)
59AQI (US)
2nd August 2026
62AQI (US)
62AQI (US)
3rd August 2026
70AQI (US)
70AQI (US)
4th August 2026
61AQI (US)
61AQI (US)
5th August 2026
59AQI (US)
59AQI (US)
6th August 2026
80AQI (US)
80AQI (US)
7th August 2026
65AQI (US)
65AQI (US)
8th August 2026
71AQI (US)
71AQI (US)
9th August 2026
82AQI (US)
82AQI (US)
10th August 2026
93AQI (US)
93AQI (US)
11th August 2026
88AQI (US)
88AQI (US)
12th August 2026
81AQI (US)
81AQI (US)
13th August 2026
82AQI (US)
82AQI (US)
14th August 2026
88AQI (US)
88AQI (US)
15th August 2026
85AQI (US)
85AQI (US)
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
45AQI (US)
42AQI (US)
48AQI (US)
47AQI (US)
43AQI (US)
31AQI (US)
51AQI (US)
75AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202646AQI (US)
17
14
21
7
19
12
18
10
21
9
28
2
13
18
15
137
87
Highest AQI (US) recorded in
August75AQI (US)
Lowest AQI (US) recorded in
June31AQI (US)
202554AQI (US)
17
14
16
12
17
14
17
13
5
26
12
18
31
31
11
19
5
26
11
19
17
14
128
237
Highest AQI (US) recorded in
October61AQI (US)
Lowest AQI (US) recorded in
December48AQI (US)
202451AQI (US)
29
2
17
12
13
18
19
11
18
13
13
17
7
24
17
14
10
20
8
23
16
14
17
14
184
182
Highest AQI (US) recorded in
July61AQI (US)
Lowest AQI (US) recorded in
January40AQI (US)
202347AQI (US)
28
3
28
30
1
19
11
28
3
26
4
20
11
5
26
5
23
2
28
2
1
14
15
31
234
125
4
1
Highest AQI (US) recorded in
October80AQI (US)
Lowest AQI (US) recorded in
February29AQI (US)
202244AQI (US)
16
13
17
4
15
16
8
22
12
19
23
7
20
4
1
17
11
24
7
29
1
31
213
104
Highest AQI (US) recorded in
April59AQI (US)
Lowest AQI (US) recorded in
August32AQI (US)
202150AQI (US)
24
6
15
13
17
14
10
20
22
9
12
18
11
20
22
9
13
17
7
24
12
18
18
13
183
181
Highest AQI (US) recorded in
October59AQI (US)
Lowest AQI (US) recorded in
January37AQI (US)
202044AQI (US)
5
8
12
9
12
6
29
1
27
4
22
9
23
7
19
12
24
6
29
2
202
64
Highest AQI (US) recorded in
March53AQI (US)
Lowest AQI (US) recorded in
July35AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2025(Avg.)
54AQI (US)Least Polluted Year Recorded
2020(Avg.)
44AQI (US)Central Water Catchment's annual 2026 AQI (US) (46) shows an average percentage change of -4.2% (improved AQI (US)) compared to previous years: 2020 (44), 2021 (50), 2022 (44), 2023 (47), 2024 (51), 2025 (54).
