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
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
26th Aug 2024
75AQILowest AQI recorded on
19th Aug 2021
29AQISame Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 53 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 6th Aug - 7th Aug 2025
Central Water Catchment, Central Region, Singapore
AQI
Day
Night
.
7 AM6th Aug 2025
7 PM
6 AM7th Aug 2025
Day time
Avg. Highest Time
10AM6th Aug
61AQI
Avg. Lowest Time
6PM6th Aug
48AQI
Night time
Avg. Highest Time
11PM6th Aug
60AQI
Avg. Lowest Time
9PM6th Aug
51AQI
In the last 24 hours,
Central Water Catchment's AQI reached its highest point of 61 at 10 AM during the Day, while the lowest point, 48, was recorded at 6 PM during the Day between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Central Water Catchment, Central Region, Singapore
JulAug
08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th
Day
Night
8th Jul 2025547 AMAQI
8th Jul 2025478 AMAQI
8th Jul 2025529 AMAQI
8th Jul 20255410 AMAQI
8th Jul 20255611 AMAQI
8th Jul 20255612 PMAQI
8th Jul 2025531 PMAQI
8th Jul 2025532 PMAQI
8th Jul 2025513 PMAQI
8th Jul 2025494 PMAQI
8th Jul 2025515 PMAQI
8th Jul 2025526 PMAQI
8th Jul 2025537 PMAQI
8th Jul 2025548 PMAQI
8th Jul 2025549 PMAQI
8th Jul 20255510 PMAQI
8th Jul 20255511 PMAQI
9th Jul 20255612 AMAQI
9th Jul 2025541 AMAQI
9th Jul 2025542 AMAQI
9th Jul 2025543 AMAQI
9th Jul 2025534 AMAQI
9th Jul 2025535 AMAQI
9th Jul 2025546 AMAQI
29°C28/30°C
9th Jul 2025547 AMAQI
9th Jul 2025438 AMAQI
9th Jul 2025389 AMAQI
9th Jul 20254410 AMAQI
9th Jul 20253411 AMAQI
9th Jul 20255112 PMAQI
9th Jul 2025541 PMAQI
9th Jul 2025542 PMAQI
9th Jul 2025543 PMAQI
9th Jul 2025524 PMAQI
9th Jul 2025545 PMAQI
9th Jul 2025546 PMAQI
9th Jul 2025547 PMAQI
9th Jul 2025568 PMAQI
9th Jul 2025559 PMAQI
9th Jul 20255510 PMAQI
9th Jul 20255611 PMAQI
10th Jul 20255612 AMAQI
10th Jul 2025541 AMAQI
10th Jul 2025542 AMAQI
10th Jul 2025543 AMAQI
10th Jul 2025544 AMAQI
10th Jul 2025545 AMAQI
10th Jul 2025536 AMAQI
29°C28/29°C
10th Jul 2025537 AMAQI
10th Jul 2025468 AMAQI
10th Jul 2025399 AMAQI
10th Jul 20254110 AMAQI
10th Jul 20254311 AMAQI
10th Jul 20255212 PMAQI
10th Jul 2025521 PMAQI
10th Jul 2025512 PMAQI
10th Jul 2025503 PMAQI
10th Jul 2025464 PMAQI
10th Jul 2025465 PMAQI
10th Jul 2025536 PMAQI
10th Jul 2025567 PMAQI
10th Jul 2025548 PMAQI
10th Jul 2025549 PMAQI
10th Jul 20255510 PMAQI
10th Jul 20255611 PMAQI
11th Jul 20255512 AMAQI
11th Jul 2025541 AMAQI
11th Jul 2025542 AMAQI
11th Jul 2025543 AMAQI
11th Jul 2025534 AMAQI
11th Jul 2025535 AMAQI
11th Jul 2025536 AMAQI
29°C28/30°C
11th Jul 2025537 AMAQI
11th Jul 2025568 AMAQI
11th Jul 2025569 AMAQI
11th Jul 20255310 AMAQI
11th Jul 20255411 AMAQI
11th Jul 20255812 PMAQI
11th Jul 2025581 PMAQI
11th Jul 2025582 PMAQI
11th Jul 2025573 PMAQI
11th Jul 2025554 PMAQI
11th Jul 2025555 PMAQI
11th Jul 2025566 PMAQI
11th Jul 2025567 PMAQI
11th Jul 2025558 PMAQI
11th Jul 2025589 PMAQI
11th Jul 20255610 PMAQI
11th Jul 20255811 PMAQI
12th Jul 20255612 AMAQI
12th Jul 2025551 AMAQI
12th Jul 2025532 AMAQI
12th Jul 2025543 AMAQI
12th Jul 2025544 AMAQI
12th Jul 2025545 AMAQI
12th Jul 2025546 AMAQI
29°C28/29°C
12th Jul 2025547 AMAQI
12th Jul 2025428 AMAQI
12th Jul 2025429 AMAQI
12th Jul 20254010 AMAQI
12th Jul 20254711 AMAQI
12th Jul 20255212 PMAQI
12th Jul 2025621 PMAQI
12th Jul 2025532 PMAQI
12th Jul 2025543 PMAQI
12th Jul 2025524 PMAQI
12th Jul 2025535 PMAQI
12th Jul 2025556 PMAQI
12th Jul 2025537 PMAQI
12th Jul 2025568 PMAQI
12th Jul 2025569 PMAQI
12th Jul 20255510 PMAQI
12th Jul 20255811 PMAQI
13th Jul 20255612 AMAQI
13th Jul 2025551 AMAQI
13th Jul 2025552 AMAQI
13th Jul 2025543 AMAQI
13th Jul 2025544 AMAQI
13th Jul 2025535 AMAQI
13th Jul 2025546 AMAQI
28°C27/29°C
13th Jul 2025547 AMAQI
13th Jul 2025588 AMAQI
13th Jul 2025589 AMAQI
13th Jul 20255610 AMAQI
13th Jul 20255511 AMAQI
13th Jul 20255612 PMAQI
13th Jul 2025551 PMAQI
13th Jul 2025552 PMAQI
13th Jul 2025523 PMAQI
13th Jul 2025554 PMAQI
13th Jul 2025525 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025537 PMAQI
13th Jul 2025548 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025551 AMAQI
14th Jul 2025542 AMAQI
14th Jul 2025543 AMAQI
14th Jul 2025544 AMAQI
14th Jul 2025545 AMAQI
14th Jul 2025556 AMAQI
28°C27/30°C
14th Jul 2025547 AMAQI
14th Jul 2025508 AMAQI
14th Jul 2025509 AMAQI
14th Jul 20255210 AMAQI
14th Jul 20255411 AMAQI
14th Jul 20255612 PMAQI
14th Jul 2025501 PMAQI
14th Jul 2025542 PMAQI
14th Jul 2025573 PMAQI
14th Jul 2025594 PMAQI
14th Jul 2025635 PMAQI
14th Jul 2025666 PMAQI
14th Jul 2025597 PMAQI
14th Jul 2025548 PMAQI
14th Jul 2025549 PMAQI
14th Jul 20255510 PMAQI
14th Jul 20255311 PMAQI
15th Jul 20255412 AMAQI
15th Jul 2025541 AMAQI
15th Jul 2025542 AMAQI
15th Jul 2025543 AMAQI
15th Jul 2025544 AMAQI
15th Jul 2025555 AMAQI
15th Jul 2025546 AMAQI
29°C28/30°C
15th Jul 2025547 AMAQI
15th Jul 2025488 AMAQI
15th Jul 2025499 AMAQI
15th Jul 20254810 AMAQI
15th Jul 20255211 AMAQI
15th Jul 20255012 PMAQI
15th Jul 2025451 PMAQI
15th Jul 2025472 PMAQI
15th Jul 2025513 PMAQI
15th Jul 2025554 PMAQI
15th Jul 2025575 PMAQI
15th Jul 2025576 PMAQI
15th Jul 2025577 PMAQI
15th Jul 2025558 PMAQI
15th Jul 2025569 PMAQI
15th Jul 20255510 PMAQI
15th Jul 20255511 PMAQI
16th Jul 20255312 AMAQI
16th Jul 2025541 AMAQI
16th Jul 2025572 AMAQI
16th Jul 2025543 AMAQI
16th Jul 2025544 AMAQI
16th Jul 2025545 AMAQI
16th Jul 2025546 AMAQI
28°C27/29°C
16th Jul 2025547 AMAQI
16th Jul 2025618 AMAQI
16th Jul 2025659 AMAQI
16th Jul 20256410 AMAQI
16th Jul 20256311 AMAQI
16th Jul 20256212 PMAQI
16th Jul 2025581 PMAQI
16th Jul 2025562 PMAQI
16th Jul 2025493 PMAQI
16th Jul 2025544 PMAQI
16th Jul 2025575 PMAQI
16th Jul 2025606 PMAQI
16th Jul 2025567 PMAQI
16th Jul 2025548 PMAQI
16th Jul 2025549 PMAQI
16th Jul 20255610 PMAQI
16th Jul 20255511 PMAQI
17th Jul 20255512 AMAQI
17th Jul 2025541 AMAQI
17th Jul 2025542 AMAQI
17th Jul 2025543 AMAQI
17th Jul 2025544 AMAQI
17th Jul 2025545 AMAQI
17th Jul 2025556 AMAQI
29°C28/29°C
17th Jul 2025557 AMAQI
17th Jul 2025538 AMAQI
17th Jul 2025589 AMAQI
17th Jul 20256110 AMAQI
17th Jul 20255911 AMAQI
17th Jul 20255512 PMAQI
17th Jul 2025551 PMAQI
17th Jul 2025512 PMAQI
17th Jul 2025513 PMAQI
17th Jul 2025544 PMAQI
17th Jul 2025555 PMAQI
17th Jul 2025546 PMAQI
17th Jul 2025547 PMAQI
17th Jul 2025558 PMAQI
17th Jul 2025559 PMAQI
17th Jul 20255510 PMAQI
17th Jul 20255611 PMAQI
18th Jul 20255612 AMAQI
18th Jul 2025551 AMAQI
18th Jul 2025552 AMAQI
18th Jul 2025553 AMAQI
18th Jul 2025544 AMAQI
18th Jul 2025555 AMAQI
18th Jul 2025556 AMAQI
29°C28/30°C
18th Jul 2025557 AMAQI
18th Jul 2025568 AMAQI
18th Jul 2025559 AMAQI
18th Jul 20255910 AMAQI
18th Jul 20255711 AMAQI
18th Jul 20255612 PMAQI
18th Jul 2025541 PMAQI
18th Jul 2025562 PMAQI
18th Jul 2025593 PMAQI
18th Jul 2025604 PMAQI
18th Jul 2025665 PMAQI
18th Jul 2025676 PMAQI
18th Jul 2025607 PMAQI
18th Jul 2025598 PMAQI
18th Jul 2025579 PMAQI
18th Jul 20255710 PMAQI
18th Jul 20255611 PMAQI
19th Jul 20255712 AMAQI
19th Jul 2025551 AMAQI
19th Jul 2025552 AMAQI
19th Jul 2025563 AMAQI
19th Jul 2025564 AMAQI
19th Jul 2025555 AMAQI
19th Jul 2025566 AMAQI
29°C28/30°C
19th Jul 2025567 AMAQI
19th Jul 2025608 AMAQI
19th Jul 2025649 AMAQI
19th Jul 20256510 AMAQI
19th Jul 20256511 AMAQI
19th Jul 20256412 PMAQI
19th Jul 2025601 PMAQI
19th Jul 2025572 PMAQI
19th Jul 2025583 PMAQI
19th Jul 2025594 PMAQI
19th Jul 2025655 PMAQI
19th Jul 2025616 PMAQI
19th Jul 2025627 PMAQI
19th Jul 2025608 PMAQI
19th Jul 2025619 PMAQI
19th Jul 20256110 PMAQI
19th Jul 20256011 PMAQI
20th Jul 20256012 AMAQI
20th Jul 2025551 AMAQI
20th Jul 2025562 AMAQI
20th Jul 2025553 AMAQI
20th Jul 2025564 AMAQI
20th Jul 2025565 AMAQI
20th Jul 2025566 AMAQI
29°C28/30°C
20th Jul 2025567 AMAQI
20th Jul 2025598 AMAQI
20th Jul 2025629 AMAQI
20th Jul 20256210 AMAQI
20th Jul 20256611 AMAQI
20th Jul 20256212 PMAQI
20th Jul 2025621 PMAQI
20th Jul 2025572 PMAQI
20th Jul 2025593 PMAQI
20th Jul 2025624 PMAQI
20th Jul 2025565 PMAQI
20th Jul 2025586 PMAQI
20th Jul 2025637 PMAQI
20th Jul 2025618 PMAQI
20th Jul 2025629 PMAQI
20th Jul 20256010 PMAQI
20th Jul 20256211 PMAQI
21st Jul 20256012 AMAQI
21st Jul 2025571 AMAQI
21st Jul 2025552 AMAQI
21st Jul 2025563 AMAQI
21st Jul 2025564 AMAQI
21st Jul 2025575 AMAQI
21st Jul 2025566 AMAQI
29°C28/29°C
21st Jul 2025577 AMAQI
21st Jul 2025648 AMAQI
21st Jul 2025659 AMAQI
21st Jul 20257110 AMAQI
21st Jul 20256711 AMAQI
21st Jul 20256012 PMAQI
21st Jul 2025491 PMAQI
21st Jul 2025482 PMAQI
21st Jul 2025483 PMAQI
21st Jul 2025604 PMAQI
21st Jul 2025675 PMAQI
21st Jul 2025666 PMAQI
21st Jul 2025647 PMAQI
21st Jul 2025648 PMAQI
21st Jul 2025649 PMAQI
21st Jul 20256510 PMAQI
21st Jul 20256511 PMAQI
22nd Jul 20256312 AMAQI
22nd Jul 2025581 AMAQI
22nd Jul 2025562 AMAQI
22nd Jul 2025563 AMAQI
22nd Jul 2025574 AMAQI
22nd Jul 2025585 AMAQI
22nd Jul 2025576 AMAQI
29°C27/30°C
22nd Jul 2025577 AMAQI
22nd Jul 2025628 AMAQI
22nd Jul 2025649 AMAQI
22nd Jul 20256610 AMAQI
22nd Jul 20256511 AMAQI
22nd Jul 20256112 PMAQI
22nd Jul 2025621 PMAQI
22nd Jul 2025642 PMAQI
22nd Jul 2025623 PMAQI
22nd Jul 2025624 PMAQI
22nd Jul 2025595 PMAQI
22nd Jul 2025606 PMAQI
22nd Jul 2025617 PMAQI
22nd Jul 2025658 PMAQI
22nd Jul 2025679 PMAQI
22nd Jul 20256510 PMAQI
22nd Jul 20257211 PMAQI
23rd Jul 20256312 AMAQI
23rd Jul 2025581 AMAQI
23rd Jul 2025582 AMAQI
23rd Jul 2025583 AMAQI
23rd Jul 2025594 AMAQI
23rd Jul 2025595 AMAQI
23rd Jul 2025586 AMAQI
28°C27/29°C
23rd Jul 2025587 AMAQI
23rd Jul 2025708 AMAQI
23rd Jul 2025769 AMAQI
23rd Jul 20257610 AMAQI
23rd Jul 20257311 AMAQI
23rd Jul 20257212 PMAQI
23rd Jul 2025741 PMAQI
23rd Jul 2025732 PMAQI
23rd Jul 2025743 PMAQI
23rd Jul 2025734 PMAQI
23rd Jul 2025745 PMAQI
23rd Jul 2025776 PMAQI
23rd Jul 2025787 PMAQI
23rd Jul 2025708 PMAQI
23rd Jul 2025709 PMAQI
23rd Jul 20257410 PMAQI
23rd Jul 20257211 PMAQI
24th Jul 20256712 AMAQI
24th Jul 2025601 AMAQI
24th Jul 2025592 AMAQI
24th Jul 2025603 AMAQI
24th Jul 2025624 AMAQI
24th Jul 2025625 AMAQI
24th Jul 2025626 AMAQI
28°C27/30°C
24th Jul 2025627 AMAQI
24th Jul 2025688 AMAQI
24th Jul 2025639 AMAQI
24th Jul 20256210 AMAQI
24th Jul 20256411 AMAQI
24th Jul 20256212 PMAQI
24th Jul 2025591 PMAQI
24th Jul 2025652 PMAQI
24th Jul 2025683 PMAQI
24th Jul 2025724 PMAQI
24th Jul 2025705 PMAQI
24th Jul 2025696 PMAQI
24th Jul 2025687 PMAQI
24th Jul 2025628 PMAQI
24th Jul 2025649 PMAQI
24th Jul 20256410 PMAQI
24th Jul 20256511 PMAQI
25th Jul 20256312 AMAQI
25th Jul 2025611 AMAQI
25th Jul 2025612 AMAQI
25th Jul 2025623 AMAQI
25th Jul 2025614 AMAQI
25th Jul 2025615 AMAQI
25th Jul 2025626 AMAQI
29°C28/30°C
25th Jul 2025627 AMAQI
25th Jul 2025598 AMAQI
25th Jul 2025569 AMAQI
25th Jul 20255910 AMAQI
25th Jul 20256011 AMAQI
25th Jul 20256112 PMAQI
25th Jul 2025601 PMAQI
25th Jul 2025612 PMAQI
25th Jul 2025623 PMAQI
25th Jul 2025644 PMAQI
25th Jul 2025625 PMAQI
25th Jul 2025606 PMAQI
25th Jul 2025657 PMAQI
25th Jul 2025658 PMAQI
25th Jul 2025649 PMAQI
25th Jul 20256410 PMAQI
25th Jul 20256411 PMAQI
26th Jul 20256312 AMAQI
26th Jul 2025641 AMAQI
26th Jul 2025642 AMAQI
26th Jul 2025633 AMAQI
26th Jul 2025624 AMAQI
26th Jul 2025625 AMAQI
26th Jul 2025616 AMAQI
29°C27/30°C
26th Jul 2025617 AMAQI
26th Jul 2025668 AMAQI
26th Jul 2025759 AMAQI
26th Jul 20256810 AMAQI
26th Jul 20255911 AMAQI
26th Jul 20256112 PMAQI
26th Jul 2025641 PMAQI
26th Jul 2025622 PMAQI
26th Jul 2025583 PMAQI
26th Jul 2025524 PMAQI
26th Jul 2025385 PMAQI
26th Jul 2025376 PMAQI
26th Jul 2025447 PMAQI
26th Jul 2025578 PMAQI
26th Jul 2025579 PMAQI
26th Jul 20255610 PMAQI
26th Jul 20255611 PMAQI
27th Jul 20256012 AMAQI
27th Jul 2025621 AMAQI
27th Jul 2025622 AMAQI
27th Jul 2025643 AMAQI
27th Jul 2025624 AMAQI
27th Jul 2025625 AMAQI
27th Jul 2025616 AMAQI
29°C28/30°C
27th Jul 2025617 AMAQI
27th Jul 2025498 AMAQI
27th Jul 2025469 AMAQI
27th Jul 20253810 AMAQI
27th Jul 20256111 AMAQI
27th Jul 20255412 PMAQI
27th Jul 2025491 PMAQI
27th Jul 2025552 PMAQI
27th Jul 2025553 PMAQI
27th Jul 2025544 PMAQI
27th Jul 2025515 PMAQI
27th Jul 2025456 PMAQI
27th Jul 2025487 PMAQI
27th Jul 2025578 PMAQI
27th Jul 2025579 PMAQI
27th Jul 20255710 PMAQI
27th Jul 20256011 PMAQI
28th Jul 20256112 AMAQI
28th Jul 2025601 AMAQI
28th Jul 2025612 AMAQI
28th Jul 2025603 AMAQI
28th Jul 2025604 AMAQI
28th Jul 2025605 AMAQI
28th Jul 2025606 AMAQI
29°C27/30°C
28th Jul 2025597 AMAQI
28th Jul 2025608 AMAQI
28th Jul 2025589 AMAQI
28th Jul 20256110 AMAQI
28th Jul 20255911 AMAQI
28th Jul 20255412 PMAQI
28th Jul 2025521 PMAQI
28th Jul 2025602 PMAQI
28th Jul 2025623 PMAQI
28th Jul 2025464 PMAQI
28th Jul 2025465 PMAQI
28th Jul 2025546 PMAQI
28th Jul 2025557 PMAQI
28th Jul 2025618 PMAQI
28th Jul 2025609 PMAQI
28th Jul 20256010 PMAQI
28th Jul 20256211 PMAQI
29th Jul 20256312 AMAQI
29th Jul 2025601 AMAQI
29th Jul 2025602 AMAQI
29th Jul 2025603 AMAQI
29th Jul 2025604 AMAQI
29th Jul 2025605 AMAQI
29th Jul 2025606 AMAQI
29°C28/30°C
29th Jul 2025617 AMAQI
29th Jul 2025578 AMAQI
29th Jul 2025609 AMAQI
29th Jul 20256110 AMAQI
29th Jul 20256411 AMAQI
29th Jul 20255912 PMAQI
29th Jul 2025551 PMAQI
29th Jul 2025582 PMAQI
29th Jul 2025593 PMAQI
29th Jul 2025614 PMAQI
29th Jul 2025605 PMAQI
29th Jul 2025606 PMAQI
29th Jul 2025667 PMAQI
29th Jul 2025628 PMAQI
29th Jul 2025639 PMAQI
29th Jul 20256610 PMAQI
29th Jul 20256411 PMAQI
30th Jul 20256412 AMAQI
30th Jul 2025631 AMAQI
30th Jul 2025622 AMAQI
30th Jul 2025623 AMAQI
30th Jul 2025614 AMAQI
30th Jul 2025605 AMAQI
30th Jul 2025606 AMAQI
29°C28/30°C
30th Jul 2025607 AMAQI
30th Jul 2025628 AMAQI
30th Jul 2025649 AMAQI
30th Jul 20256810 AMAQI
30th Jul 20256811 AMAQI
30th Jul 20256812 PMAQI
30th Jul 2025681 PMAQI
30th Jul 2025652 PMAQI
30th Jul 2025643 PMAQI
30th Jul 2025644 PMAQI
30th Jul 2025675 PMAQI
30th Jul 2025696 PMAQI
30th Jul 2025737 PMAQI
30th Jul 2025708 PMAQI
30th Jul 2025709 PMAQI
30th Jul 20256910 PMAQI
30th Jul 20256411 PMAQI
31st Jul 20255812 AMAQI
31st Jul 2025611 AMAQI
31st Jul 2025622 AMAQI
31st Jul 2025613 AMAQI
31st Jul 2025614 AMAQI
31st Jul 2025615 AMAQI
31st Jul 2025616 AMAQI
29°C28/31°C
31st Jul 2025617 AMAQI
31st Jul 2025618 AMAQI
31st Jul 2025619 AMAQI
31st Jul 20256310 AMAQI
31st Jul 20256511 AMAQI
31st Jul 20256312 PMAQI
31st Jul 2025561 PMAQI
31st Jul 2025542 PMAQI
31st Jul 2025483 PMAQI
31st Jul 2025524 PMAQI
31st Jul 2025525 PMAQI
31st Jul 2025526 PMAQI
31st Jul 2025577 PMAQI
31st Jul 2025628 PMAQI
31st Jul 2025599 PMAQI
31st Jul 20255810 PMAQI
31st Jul 20256411 PMAQI
1st Aug 20256012 AMAQI
1st Aug 2025601 AMAQI
1st Aug 2025612 AMAQI
1st Aug 2025593 AMAQI
1st Aug 2025574 AMAQI
1st Aug 2025575 AMAQI
1st Aug 2025586 AMAQI
29°C28/31°C
1st Aug 2025587 AMAQI
1st Aug 2025588 AMAQI
1st Aug 2025579 AMAQI
1st Aug 20255610 AMAQI
1st Aug 20255911 AMAQI
1st Aug 20255712 PMAQI
1st Aug 2025541 PMAQI
1st Aug 2025542 PMAQI
1st Aug 2025543 PMAQI
1st Aug 2025554 PMAQI
1st Aug 2025555 PMAQI
1st Aug 2025546 PMAQI
1st Aug 2025577 PMAQI
1st Aug 2025598 PMAQI
1st Aug 2025609 PMAQI
1st Aug 20255610 PMAQI
1st Aug 20255811 PMAQI
2nd Aug 20255612 AMAQI
2nd Aug 2025571 AMAQI
2nd Aug 2025562 AMAQI
2nd Aug 2025583 AMAQI
2nd Aug 2025584 AMAQI
2nd Aug 2025575 AMAQI
2nd Aug 2025576 AMAQI
29°C28/30°C
2nd Aug 2025587 AMAQI
2nd Aug 2025568 AMAQI
2nd Aug 2025559 AMAQI
2nd Aug 20255410 AMAQI
2nd Aug 20255611 AMAQI
2nd Aug 20255612 PMAQI
2nd Aug 2025551 PMAQI
2nd Aug 2025572 PMAQI
2nd Aug 2025563 PMAQI
2nd Aug 2025554 PMAQI
2nd Aug 2025575 PMAQI
2nd Aug 2025556 PMAQI
2nd Aug 2025567 PMAQI
2nd Aug 2025568 PMAQI
2nd Aug 2025569 PMAQI
2nd Aug 20255610 PMAQI
2nd Aug 20255611 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025571 AMAQI
3rd Aug 2025572 AMAQI
3rd Aug 2025573 AMAQI
3rd Aug 2025564 AMAQI
3rd Aug 2025565 AMAQI
3rd Aug 2025566 AMAQI
29°C28/31°C
3rd Aug 2025567 AMAQI
3rd Aug 2025558 AMAQI
3rd Aug 2025549 AMAQI
3rd Aug 20255610 AMAQI
3rd Aug 20255411 AMAQI
3rd Aug 20255612 PMAQI
3rd Aug 2025561 PMAQI
3rd Aug 2025462 PMAQI
3rd Aug 2025503 PMAQI
3rd Aug 2025474 PMAQI
3rd Aug 2025525 PMAQI
3rd Aug 2025486 PMAQI
3rd Aug 2025507 PMAQI
3rd Aug 2025548 PMAQI
3rd Aug 2025559 PMAQI
3rd Aug 20255710 PMAQI
3rd Aug 20256011 PMAQI
4th Aug 20255812 AMAQI
4th Aug 2025561 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025564 AMAQI
4th Aug 2025565 AMAQI
4th Aug 2025566 AMAQI
29°C28/30°C
4th Aug 2025567 AMAQI
4th Aug 2025588 AMAQI
4th Aug 2025569 AMAQI
4th Aug 20255810 AMAQI
4th Aug 20255411 AMAQI
4th Aug 20255612 PMAQI
4th Aug 2025601 PMAQI
4th Aug 2025562 PMAQI
4th Aug 2025533 PMAQI
4th Aug 2025504 PMAQI
4th Aug 2025525 PMAQI
4th Aug 2025566 PMAQI
4th Aug 2025567 PMAQI
4th Aug 2025598 PMAQI
4th Aug 2025579 PMAQI
4th Aug 20255410 PMAQI
4th Aug 20255811 PMAQI
5th Aug 20255412 AMAQI
5th Aug 2025551 AMAQI
5th Aug 2025562 AMAQI
5th Aug 2025553 AMAQI
5th Aug 2025564 AMAQI
5th Aug 2025555 AMAQI
5th Aug 2025566 AMAQI
28°C27/29°C
5th Aug 2025557 AMAQI
5th Aug 2025348 AMAQI
5th Aug 2025399 AMAQI
5th Aug 20254010 AMAQI
5th Aug 20254711 AMAQI
5th Aug 20253412 PMAQI
5th Aug 2025391 PMAQI
5th Aug 2025492 PMAQI
5th Aug 2025523 PMAQI
5th Aug 2025484 PMAQI
5th Aug 2025615 PMAQI
5th Aug 2025606 PMAQI
5th Aug 2025557 PMAQI
5th Aug 2025578 PMAQI
5th Aug 2025589 PMAQI
5th Aug 20255810 PMAQI
5th Aug 20255811 PMAQI
6th Aug 20255212 AMAQI
6th Aug 2025551 AMAQI
6th Aug 2025552 AMAQI
6th Aug 2025543 AMAQI
6th Aug 2025544 AMAQI
6th Aug 2025545 AMAQI
6th Aug 2025536 AMAQI
27°C25/28°C
6th Aug 2025537 AMAQI
6th Aug 2025568 AMAQI
6th Aug 2025589 AMAQI
6th Aug 20256110 AMAQI
6th Aug 20255911 AMAQI
6th Aug 20255912 PMAQI
6th Aug 2025551 PMAQI
6th Aug 2025532 PMAQI
6th Aug 2025523 PMAQI
6th Aug 2025544 PMAQI
6th Aug 2025495 PMAQI
6th Aug 2025486 PMAQI
6th Aug 2025567 PMAQI
6th Aug 2025598 PMAQI
6th Aug 2025519 PMAQI
6th Aug 20255510 PMAQI
6th Aug 20256011 PMAQI
7th Aug 20255712 AMAQI
7th Aug 2025541 AMAQI
7th Aug 2025542 AMAQI
7th Aug 2025543 AMAQI
7th Aug 2025554 AMAQI
7th Aug 2025555 AMAQI
7th Aug 2025556 AMAQI
29°C27/30°C
7th Aug 2025557 AMAQI
7 AM7th Aug 2025458 AMAQI
7th Aug 2025519 AMAQI
7th Aug 20255510 AMAQI
7th Aug 20256811 AMAQI
7th Aug 20256212 PMAQI
1 PM
7 PM
1 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
7 AM - 7 PM
57AQI
13 hours / Day
390 hours / Month
Avg. Lowest Time
7 AM - 7 PM
57AQI
13 hours / Day
390 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 7 PM (Avg. 57), while the lowest AQI was between 7 AM to 7 PM (Avg. 57).
Night time
Avg. Highest Time
12 AM - 11 PM
58AQI
11 hours / Day
330 hours / Month
Avg. Lowest Time
12 AM - 11 PM
58AQI
11 hours / Day
330 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 58), while the lowest AQI was between 12 AM to 11 PM (Avg. 58).
2025 Days Vs Air Quality
Central Water Catchment, Central Region, Singapore
2025
39%
84
61%
133
Total number of days with different AQI categories in last 219 days in 2025 (146 days remaining)
Good
84 DaysModerate
133 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 39%
Health Risk Level:
High
In 2025, 39% of 219 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Central Water Catchment, Central Region, Singapore
AQI levels in 2025
AQI
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.
1st January 2025
48AQI
48AQI
2nd January 2025
56AQI
56AQI
3rd January 2025
54AQI
54AQI
4th January 2025
49AQI
49AQI
5th January 2025
49AQI
49AQI
6th January 2025
49AQI
49AQI
7th January 2025
56AQI
56AQI
8th January 2025
55AQI
55AQI
9th January 2025
60AQI
60AQI
10th January 2025
51AQI
51AQI
11th January 2025
40AQI
40AQI
12th January 2025
41AQI
41AQI
13th January 2025
39AQI
39AQI
14th January 2025
44AQI
44AQI
15th January 2025
72AQI
72AQI
16th January 2025
47AQI
47AQI
17th January 2025
46AQI
46AQI
18th January 2025
46AQI
46AQI
19th January 2025
48AQI
48AQI
20th January 2025
49AQI
49AQI
21st January 2025
50AQI
50AQI
22nd January 2025
58AQI
58AQI
23rd January 2025
50AQI
50AQI
24th January 2025
57AQI
57AQI
25th January 2025
50AQI
50AQI
26th January 2025
51AQI
51AQI
27th January 2025
44AQI
44AQI
28th January 2025
57AQI
57AQI
29th January 2025
53AQI
53AQI
30th January 2025
55AQI
55AQI
31st January 2025
54AQI
54AQI
1st February 2025
56AQI
56AQI
2nd February 2025
59AQI
59AQI
3rd February 2025
69AQI
69AQI
4th February 2025
50AQI
50AQI
5th February 2025
50AQI
50AQI
6th February 2025
59AQI
59AQI
7th February 2025
53AQI
53AQI
8th February 2025
54AQI
54AQI
9th February 2025
51AQI
51AQI
10th February 2025
50AQI
50AQI
11th February 2025
45AQI
45AQI
12th February 2025
55AQI
55AQI
13th February 2025
55AQI
55AQI
14th February 2025
48AQI
48AQI
15th February 2025
55AQI
55AQI
16th February 2025
49AQI
49AQI
17th February 2025
51AQI
51AQI
18th February 2025
41AQI
41AQI
19th February 2025
50AQI
50AQI
20th February 2025
51AQI
51AQI
21st February 2025
50AQI
50AQI
22nd February 2025
47AQI
47AQI
23rd February 2025
43AQI
43AQI
24th February 2025
40AQI
40AQI
25th February 2025
45AQI
45AQI
26th February 2025
49AQI
49AQI
27th February 2025
46AQI
46AQI
28th February 2025
50AQI
50AQI
1st March 2025
51AQI
51AQI
2nd March 2025
46AQI
46AQI
3rd March 2025
53AQI
53AQI
4th March 2025
52AQI
52AQI
5th March 2025
62AQI
62AQI
6th March 2025
41AQI
41AQI
7th March 2025
52AQI
52AQI
8th March 2025
47AQI
47AQI
9th March 2025
47AQI
47AQI
10th March 2025
41AQI
41AQI
11th March 2025
42AQI
42AQI
12th March 2025
39AQI
39AQI
13th March 2025
46AQI
46AQI
14th March 2025
38AQI
38AQI
15th March 2025
44AQI
44AQI
16th March 2025
39AQI
39AQI
17th March 2025
39AQI
39AQI
18th March 2025
46AQI
46AQI
19th March 2025
46AQI
46AQI
20th March 2025
41AQI
41AQI
21st March 2025
59AQI
59AQI
22nd March 2025
48AQI
48AQI
23rd March 2025
43AQI
43AQI
24th March 2025
54AQI
54AQI
25th March 2025
71AQI
71AQI
26th March 2025
79AQI
79AQI
27th March 2025
74AQI
74AQI
28th March 2025
61AQI
61AQI
29th March 2025
72AQI
72AQI
30th March 2025
61AQI
61AQI
31st March 2025
63AQI
63AQI
1st April 2025
61AQI
61AQI
2nd April 2025
48AQI
48AQI
3rd April 2025
43AQI
43AQI
4th April 2025
51AQI
51AQI
5th April 2025
45AQI
45AQI
6th April 2025
43AQI
43AQI
7th April 2025
37AQI
37AQI
8th April 2025
47AQI
47AQI
9th April 2025
38AQI
38AQI
10th April 2025
54AQI
54AQI
11th April 2025
39AQI
39AQI
12th April 2025
43AQI
43AQI
13th April 2025
38AQI
38AQI
14th April 2025
43AQI
43AQI
15th April 2025
42AQI
42AQI
16th April 2025
55AQI
55AQI
17th April 2025
46AQI
46AQI
18th April 2025
56AQI
56AQI
19th April 2025
43AQI
43AQI
20th April 2025
46AQI
46AQI
21st April 2025
46AQI
46AQI
22nd April 2025
53AQI
53AQI
23rd April 2025
54AQI
54AQI
24th April 2025
63AQI
63AQI
25th April 2025
62AQI
62AQI
26th April 2025
54AQI
54AQI
27th April 2025
54AQI
54AQI
28th April 2025
53AQI
53AQI
29th April 2025
56AQI
56AQI
30th April 2025
44AQI
44AQI
1st May 2025
53AQI
53AQI
2nd May 2025
58AQI
58AQI
3rd May 2025
51AQI
51AQI
4th May 2025
47AQI
47AQI
5th May 2025
53AQI
53AQI
6th May 2025
52AQI
52AQI
7th May 2025
57AQI
57AQI
8th May 2025
57AQI
57AQI
9th May 2025
54AQI
54AQI
10th May 2025
62AQI
62AQI
11th May 2025
48AQI
48AQI
12th May 2025
55AQI
55AQI
13th May 2025
56AQI
56AQI
14th May 2025
56AQI
56AQI
15th May 2025
57AQI
57AQI
16th May 2025
55AQI
55AQI
17th May 2025
54AQI
54AQI
18th May 2025
45AQI
45AQI
19th May 2025
51AQI
51AQI
20th May 2025
52AQI
52AQI
21st May 2025
53AQI
53AQI
22nd May 2025
56AQI
56AQI
23rd May 2025
48AQI
48AQI
24th May 2025
51AQI
51AQI
25th May 2025
51AQI
51AQI
26th May 2025
49AQI
49AQI
27th May 2025
53AQI
53AQI
28th May 2025
52AQI
52AQI
29th May 2025
52AQI
52AQI
30th May 2025
55AQI
55AQI
31st May 2025
54AQI
54AQI
1st June 2025
51AQI
51AQI
2nd June 2025
52AQI
52AQI
3rd June 2025
55AQI
55AQI
4th June 2025
59AQI
59AQI
5th June 2025
58AQI
58AQI
6th June 2025
46AQI
46AQI
7th June 2025
47AQI
47AQI
8th June 2025
43AQI
43AQI
9th June 2025
53AQI
53AQI
10th June 2025
42AQI
42AQI
11th June 2025
47AQI
47AQI
12th June 2025
54AQI
54AQI
13th June 2025
47AQI
47AQI
14th June 2025
45AQI
45AQI
15th June 2025
40AQI
40AQI
16th June 2025
42AQI
42AQI
17th June 2025
48AQI
48AQI
18th June 2025
46AQI
46AQI
19th June 2025
47AQI
47AQI
20th June 2025
52AQI
52AQI
21st June 2025
58AQI
58AQI
22nd June 2025
70AQI
70AQI
23rd June 2025
63AQI
63AQI
24th June 2025
58AQI
58AQI
25th June 2025
56AQI
56AQI
26th June 2025
56AQI
56AQI
27th June 2025
61AQI
61AQI
28th June 2025
59AQI
59AQI
29th June 2025
54AQI
54AQI
30th June 2025
56AQI
56AQI
1st July 2025
54AQI
54AQI
2nd July 2025
54AQI
54AQI
3rd July 2025
58AQI
58AQI
4th July 2025
55AQI
55AQI
5th July 2025
56AQI
56AQI
6th July 2025
54AQI
54AQI
7th July 2025
51AQI
51AQI
8th July 2025
54AQI
54AQI
9th July 2025
53AQI
53AQI
10th July 2025
53AQI
53AQI
11th July 2025
55AQI
55AQI
12th July 2025
54AQI
54AQI
13th July 2025
54AQI
54AQI
14th July 2025
55AQI
55AQI
15th July 2025
54AQI
54AQI
16th July 2025
56AQI
56AQI
17th July 2025
55AQI
55AQI
18th July 2025
57AQI
57AQI
19th July 2025
59AQI
59AQI
20th July 2025
59AQI
59AQI
21st July 2025
60AQI
60AQI
22nd July 2025
61AQI
61AQI
23rd July 2025
68AQI
68AQI
24th July 2025
64AQI
64AQI
25th July 2025
62AQI
62AQI
26th July 2025
58AQI
58AQI
27th July 2025
56AQI
56AQI
28th July 2025
58AQI
58AQI
29th July 2025
61AQI
61AQI
30th July 2025
65AQI
65AQI
31st July 2025
59AQI
59AQI
1st August 2025
57AQI
57AQI
2nd August 2025
56AQI
56AQI
3rd August 2025
55AQI
55AQI
4th August 2025
56AQI
56AQI
5th August 2025
53AQI
53AQI
51AQI
51AQI
52AQI
49AQI
53AQI
52AQI
57AQI
55AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202552AQI
17
14
16
12
17
14
17
13
5
26
12
18
31
5
84
133
Highest AQI recorded in
July57AQI
Lowest AQI recorded in
April49AQI
202451AQI
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 recorded in
July61AQI
Lowest AQI recorded in
January40AQI
202347AQI
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 recorded in
October80AQI
Lowest AQI recorded in
February29AQI
202244AQI
17
13
17
4
15
16
8
22
12
19
23
7
20
4
1
17
11
24
7
29
1
31
214
104
Highest AQI recorded in
April59AQI
Lowest AQI recorded in
August32AQI
202150AQI
25
6
15
13
17
14
10
20
22
9
12
18
11
20
22
9
13
17
7
24
12
18
18
13
184
181
Highest AQI recorded in
October59AQI
Lowest AQI recorded in
January37AQI
202044AQI
5
8
12
9
12
6
29
1
27
4
22
9
23
7
19
12
24
6
29
2
202
64
Highest AQI recorded in
March53AQI
Lowest AQI recorded in
July35AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
52AQILeast Polluted Year Recorded
2020(Avg.)
44AQICentral Water Catchment's annual 2025 AQI (52) shows an average percentage change of 10.6% (worsened AQI) compared to previous years: 2020 (44), 2021 (50), 2022 (44), 2023 (47), 2024 (51).
