Western Water Catchment, West 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
Western Water Catchment, West Region, Singapore
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
26th Aug 2024
79AQILowest AQI recorded on
8th Aug 2023
20AQISame Day Analysis (7th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 59 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 7th Aug - 8th Aug 2025
Western Water Catchment, West Region, Singapore
AQI
Day
Night
.
7 AM7th Aug 2025
7 PM
6 AM8th Aug 2025
Day time
Avg. Highest Time
3PM7th Aug
76AQI
Avg. Lowest Time
8AM7th Aug
50AQI
Night time
Avg. Highest Time
11PM7th Aug
65AQI
Avg. Lowest Time
2AM8th Aug
56AQI
In the last 24 hours,
Western Water Catchment's AQI reached its highest point of 76 at 3 PM during the Day, while the lowest point, 50, was recorded at 8 AM during the Day between 7th Aug and 8th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Western Water Catchment, West Region, Singapore
JulAug
09th - 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 - 08th08th
Day
Night
9th Jul 2025547 AMAQI
9th Jul 2025388 AMAQI
9th Jul 2025379 AMAQI
9th Jul 20254010 AMAQI
9th Jul 20253611 AMAQI
9th Jul 20254712 PMAQI
9th Jul 2025511 PMAQI
9th Jul 2025512 PMAQI
9th Jul 2025543 PMAQI
9th Jul 2025544 PMAQI
9th Jul 2025525 PMAQI
9th Jul 2025526 PMAQI
9th Jul 2025547 PMAQI
9th Jul 2025558 PMAQI
9th Jul 2025559 PMAQI
9th Jul 20255410 PMAQI
9th Jul 20255411 PMAQI
10th Jul 20255412 AMAQI
10th Jul 2025541 AMAQI
10th Jul 2025542 AMAQI
10th Jul 2025543 AMAQI
10th Jul 2025544 AMAQI
10th Jul 2025535 AMAQI
10th Jul 2025536 AMAQI
28°C25/31°C
10th Jul 2025537 AMAQI
10th Jul 2025408 AMAQI
10th Jul 2025399 AMAQI
10th Jul 20255210 AMAQI
10th Jul 20255011 AMAQI
10th Jul 20255212 PMAQI
10th Jul 2025461 PMAQI
10th Jul 2025512 PMAQI
10th Jul 2025523 PMAQI
10th Jul 2025504 PMAQI
10th Jul 2025505 PMAQI
10th Jul 2025526 PMAQI
10th Jul 2025547 PMAQI
10th Jul 2025538 PMAQI
10th Jul 2025549 PMAQI
10th Jul 20255410 PMAQI
10th Jul 20255411 PMAQI
11th Jul 20255412 AMAQI
11th Jul 2025531 AMAQI
11th Jul 2025532 AMAQI
11th Jul 2025533 AMAQI
11th Jul 2025534 AMAQI
11th Jul 2025525 AMAQI
11th Jul 2025536 AMAQI
28°C26/31°C
11th Jul 2025537 AMAQI
11th Jul 2025558 AMAQI
11th Jul 2025559 AMAQI
11th Jul 20254810 AMAQI
11th Jul 20255511 AMAQI
11th Jul 20255812 PMAQI
11th Jul 2025561 PMAQI
11th Jul 2025542 PMAQI
11th Jul 2025543 PMAQI
11th Jul 2025554 PMAQI
11th Jul 2025565 PMAQI
11th Jul 2025576 PMAQI
11th Jul 2025547 PMAQI
11th Jul 2025548 PMAQI
11th Jul 2025569 PMAQI
11th Jul 20255610 PMAQI
11th Jul 20255611 PMAQI
12th Jul 20255512 AMAQI
12th Jul 2025551 AMAQI
12th Jul 2025532 AMAQI
12th Jul 2025543 AMAQI
12th Jul 2025534 AMAQI
12th Jul 2025535 AMAQI
12th Jul 2025536 AMAQI
28°C26/31°C
12th Jul 2025547 AMAQI
12th Jul 2025458 AMAQI
12th Jul 2025409 AMAQI
12th Jul 20254010 AMAQI
12th Jul 20254311 AMAQI
12th Jul 20254912 PMAQI
12th Jul 2025481 PMAQI
12th Jul 2025522 PMAQI
12th Jul 2025533 PMAQI
12th Jul 2025534 PMAQI
12th Jul 2025535 PMAQI
12th Jul 2025536 PMAQI
12th Jul 2025547 PMAQI
12th Jul 2025548 PMAQI
12th Jul 2025559 PMAQI
12th Jul 20255510 PMAQI
12th Jul 20255611 PMAQI
13th Jul 20255612 AMAQI
13th Jul 2025541 AMAQI
13th Jul 2025542 AMAQI
13th Jul 2025543 AMAQI
13th Jul 2025524 AMAQI
13th Jul 2025535 AMAQI
13th Jul 2025536 AMAQI
27°C26/30°C
13th Jul 2025537 AMAQI
13th Jul 2025568 AMAQI
13th Jul 2025579 AMAQI
13th Jul 20255410 AMAQI
13th Jul 20255811 AMAQI
13th Jul 20255712 PMAQI
13th Jul 2025551 PMAQI
13th Jul 2025552 PMAQI
13th Jul 2025543 PMAQI
13th Jul 2025544 PMAQI
13th Jul 2025525 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025537 PMAQI
13th Jul 2025538 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025542 AMAQI
14th Jul 2025543 AMAQI
14th Jul 2025544 AMAQI
14th Jul 2025545 AMAQI
14th Jul 2025546 AMAQI
28°C25/31°C
14th Jul 2025537 AMAQI
14th Jul 2025538 AMAQI
14th Jul 2025529 AMAQI
14th Jul 20255010 AMAQI
14th Jul 20255211 AMAQI
14th Jul 20255512 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025542 PMAQI
14th Jul 2025573 PMAQI
14th Jul 2025584 PMAQI
14th Jul 2025625 PMAQI
14th Jul 2025626 PMAQI
14th Jul 2025607 PMAQI
14th Jul 2025548 PMAQI
14th Jul 2025549 PMAQI
14th Jul 20255410 PMAQI
14th Jul 20255211 PMAQI
15th Jul 20255412 AMAQI
15th Jul 2025531 AMAQI
15th Jul 2025532 AMAQI
15th Jul 2025533 AMAQI
15th Jul 2025534 AMAQI
15th Jul 2025545 AMAQI
15th Jul 2025546 AMAQI
28°C26/31°C
15th Jul 2025537 AMAQI
15th Jul 2025468 AMAQI
15th Jul 2025509 AMAQI
15th Jul 20255010 AMAQI
15th Jul 20255011 AMAQI
15th Jul 20255212 PMAQI
15th Jul 2025451 PMAQI
15th Jul 2025472 PMAQI
15th Jul 2025493 PMAQI
15th Jul 2025574 PMAQI
15th Jul 2025645 PMAQI
15th Jul 2025606 PMAQI
15th Jul 2025607 PMAQI
15th Jul 2025568 PMAQI
15th Jul 2025569 PMAQI
15th Jul 20255510 PMAQI
15th Jul 20255411 PMAQI
16th Jul 20255412 AMAQI
16th Jul 2025541 AMAQI
16th Jul 2025552 AMAQI
16th Jul 2025543 AMAQI
16th Jul 2025534 AMAQI
16th Jul 2025535 AMAQI
16th Jul 2025546 AMAQI
27°C25/30°C
16th Jul 2025537 AMAQI
16th Jul 2025608 AMAQI
16th Jul 2025629 AMAQI
16th Jul 20256710 AMAQI
16th Jul 20256311 AMAQI
16th Jul 20256112 PMAQI
16th Jul 2025601 PMAQI
16th Jul 2025572 PMAQI
16th Jul 2025563 PMAQI
16th Jul 2025584 PMAQI
16th Jul 2025565 PMAQI
16th Jul 2025566 PMAQI
16th Jul 2025587 PMAQI
16th Jul 2025548 PMAQI
16th Jul 2025549 PMAQI
16th Jul 20255610 PMAQI
16th Jul 20255611 PMAQI
17th Jul 20255612 AMAQI
17th Jul 2025541 AMAQI
17th Jul 2025542 AMAQI
17th Jul 2025553 AMAQI
17th Jul 2025544 AMAQI
17th Jul 2025545 AMAQI
17th Jul 2025556 AMAQI
28°C25/31°C
17th Jul 2025567 AMAQI
17th Jul 2025548 AMAQI
17th Jul 2025529 AMAQI
17th Jul 20255610 AMAQI
17th Jul 20255611 AMAQI
17th Jul 20255612 PMAQI
17th Jul 2025581 PMAQI
17th Jul 2025562 PMAQI
17th Jul 2025523 PMAQI
17th Jul 2025534 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 2025541 AMAQI
18th Jul 2025552 AMAQI
18th Jul 2025553 AMAQI
18th Jul 2025544 AMAQI
18th Jul 2025545 AMAQI
18th Jul 2025546 AMAQI
28°C26/31°C
18th Jul 2025557 AMAQI
18th Jul 2025578 AMAQI
18th Jul 2025609 AMAQI
18th Jul 20256210 AMAQI
18th Jul 20256211 AMAQI
18th Jul 20255812 PMAQI
18th Jul 2025501 PMAQI
18th Jul 2025532 PMAQI
18th Jul 2025583 PMAQI
18th Jul 2025614 PMAQI
18th Jul 2025625 PMAQI
18th Jul 2025616 PMAQI
18th Jul 2025607 PMAQI
18th Jul 2025568 PMAQI
18th Jul 2025569 PMAQI
18th Jul 20255710 PMAQI
18th Jul 20255611 PMAQI
19th Jul 20255612 AMAQI
19th Jul 2025541 AMAQI
19th Jul 2025552 AMAQI
19th Jul 2025563 AMAQI
19th Jul 2025554 AMAQI
19th Jul 2025555 AMAQI
19th Jul 2025566 AMAQI
28°C26/31°C
19th Jul 2025567 AMAQI
19th Jul 2025648 AMAQI
19th Jul 2025679 AMAQI
19th Jul 20256610 AMAQI
19th Jul 20256511 AMAQI
19th Jul 20256212 PMAQI
19th Jul 2025571 PMAQI
19th Jul 2025542 PMAQI
19th Jul 2025583 PMAQI
19th Jul 2025614 PMAQI
19th Jul 2025615 PMAQI
19th Jul 2025586 PMAQI
19th Jul 2025587 PMAQI
19th Jul 2025588 PMAQI
19th Jul 2025579 PMAQI
19th Jul 20256110 PMAQI
19th Jul 20255911 PMAQI
20th Jul 20255812 AMAQI
20th Jul 2025561 AMAQI
20th Jul 2025562 AMAQI
20th Jul 2025563 AMAQI
20th Jul 2025564 AMAQI
20th Jul 2025565 AMAQI
20th Jul 2025576 AMAQI
28°C26/31°C
20th Jul 2025577 AMAQI
20th Jul 2025588 AMAQI
20th Jul 2025629 AMAQI
20th Jul 20255710 AMAQI
20th Jul 20256311 AMAQI
20th Jul 20255812 PMAQI
20th Jul 2025561 PMAQI
20th Jul 2025562 PMAQI
20th Jul 2025623 PMAQI
20th Jul 2025614 PMAQI
20th Jul 2025565 PMAQI
20th Jul 2025576 PMAQI
20th Jul 2025577 PMAQI
20th Jul 2025578 PMAQI
20th Jul 2025599 PMAQI
20th Jul 20255810 PMAQI
20th Jul 20255811 PMAQI
21st Jul 20255812 AMAQI
21st Jul 2025591 AMAQI
21st Jul 2025572 AMAQI
21st Jul 2025573 AMAQI
21st Jul 2025584 AMAQI
21st Jul 2025585 AMAQI
21st Jul 2025586 AMAQI
28°C26/31°C
21st Jul 2025587 AMAQI
21st Jul 2025638 AMAQI
21st Jul 2025629 AMAQI
21st Jul 20256210 AMAQI
21st Jul 20255911 AMAQI
21st Jul 20255512 PMAQI
21st Jul 2025501 PMAQI
21st Jul 2025502 PMAQI
21st Jul 2025513 PMAQI
21st Jul 2025604 PMAQI
21st Jul 2025655 PMAQI
21st Jul 2025646 PMAQI
21st Jul 2025597 PMAQI
21st Jul 2025598 PMAQI
21st Jul 2025589 PMAQI
21st Jul 20255910 PMAQI
21st Jul 20255911 PMAQI
22nd Jul 20255812 AMAQI
22nd Jul 2025581 AMAQI
22nd Jul 2025572 AMAQI
22nd Jul 2025563 AMAQI
22nd Jul 2025584 AMAQI
22nd Jul 2025585 AMAQI
22nd Jul 2025586 AMAQI
28°C25/31°C
22nd Jul 2025587 AMAQI
22nd Jul 2025648 AMAQI
22nd Jul 2025669 AMAQI
22nd Jul 20256710 AMAQI
22nd Jul 20256311 AMAQI
22nd Jul 20256112 PMAQI
22nd Jul 2025601 PMAQI
22nd Jul 2025672 PMAQI
22nd Jul 2025643 PMAQI
22nd Jul 2025644 PMAQI
22nd Jul 2025625 PMAQI
22nd Jul 2025606 PMAQI
22nd Jul 2025607 PMAQI
22nd Jul 2025638 PMAQI
22nd Jul 2025629 PMAQI
22nd Jul 20256210 PMAQI
22nd Jul 20256511 PMAQI
23rd Jul 20255812 AMAQI
23rd Jul 2025591 AMAQI
23rd Jul 2025582 AMAQI
23rd Jul 2025593 AMAQI
23rd Jul 2025604 AMAQI
23rd Jul 2025615 AMAQI
23rd Jul 2025606 AMAQI
28°C25/31°C
23rd Jul 2025597 AMAQI
23rd Jul 2025688 AMAQI
23rd Jul 2025729 AMAQI
23rd Jul 20257410 AMAQI
23rd Jul 20257011 AMAQI
23rd Jul 20257012 PMAQI
23rd Jul 2025671 PMAQI
23rd Jul 2025702 PMAQI
23rd Jul 2025713 PMAQI
23rd Jul 2025704 PMAQI
23rd Jul 2025685 PMAQI
23rd Jul 2025736 PMAQI
23rd Jul 2025737 PMAQI
23rd Jul 2025658 PMAQI
23rd Jul 2025699 PMAQI
23rd Jul 20256610 PMAQI
23rd Jul 20256811 PMAQI
24th Jul 20256412 AMAQI
24th Jul 2025631 AMAQI
24th Jul 2025602 AMAQI
24th Jul 2025613 AMAQI
24th Jul 2025624 AMAQI
24th Jul 2025635 AMAQI
24th Jul 2025626 AMAQI
28°C25/31°C
24th Jul 2025617 AMAQI
24th Jul 2025678 AMAQI
24th Jul 2025699 AMAQI
24th Jul 20256910 AMAQI
24th Jul 20256611 AMAQI
24th Jul 20256312 PMAQI
24th Jul 2025601 PMAQI
24th Jul 2025642 PMAQI
24th Jul 2025683 PMAQI
24th Jul 2025704 PMAQI
24th Jul 2025715 PMAQI
24th Jul 2025686 PMAQI
24th Jul 2025667 PMAQI
24th Jul 2025638 PMAQI
24th Jul 2025649 PMAQI
24th Jul 20256410 PMAQI
24th Jul 20256211 PMAQI
25th Jul 20256312 AMAQI
25th Jul 2025621 AMAQI
25th Jul 2025622 AMAQI
25th Jul 2025633 AMAQI
25th Jul 2025634 AMAQI
25th Jul 2025635 AMAQI
25th Jul 2025626 AMAQI
28°C25/32°C
25th Jul 2025647 AMAQI
25th Jul 2025608 AMAQI
25th Jul 2025629 AMAQI
25th Jul 20256110 AMAQI
25th Jul 20256211 AMAQI
25th Jul 20256412 PMAQI
25th Jul 2025671 PMAQI
25th Jul 2025662 PMAQI
25th Jul 2025673 PMAQI
25th Jul 2025644 PMAQI
25th Jul 2025635 PMAQI
25th Jul 2025646 PMAQI
25th Jul 2025677 PMAQI
25th Jul 2025668 PMAQI
25th Jul 2025649 PMAQI
25th Jul 20256610 PMAQI
25th Jul 20256611 PMAQI
26th Jul 20256512 AMAQI
26th Jul 2025651 AMAQI
26th Jul 2025662 AMAQI
26th Jul 2025643 AMAQI
26th Jul 2025644 AMAQI
26th Jul 2025635 AMAQI
26th Jul 2025616 AMAQI
28°C25/31°C
26th Jul 2025627 AMAQI
26th Jul 2025628 AMAQI
26th Jul 2025699 AMAQI
26th Jul 20256410 AMAQI
26th Jul 20256311 AMAQI
26th Jul 20256412 PMAQI
26th Jul 2025631 PMAQI
26th Jul 2025622 PMAQI
26th Jul 2025573 PMAQI
26th Jul 2025524 PMAQI
26th Jul 2025515 PMAQI
26th Jul 2025526 PMAQI
26th Jul 2025557 PMAQI
26th Jul 2025608 PMAQI
26th Jul 2025599 PMAQI
26th Jul 20255910 PMAQI
26th Jul 20256011 PMAQI
27th Jul 20256112 AMAQI
27th Jul 2025611 AMAQI
27th Jul 2025642 AMAQI
27th Jul 2025633 AMAQI
27th Jul 2025624 AMAQI
27th Jul 2025625 AMAQI
27th Jul 2025616 AMAQI
28°C26/31°C
27th Jul 2025627 AMAQI
27th Jul 2025558 AMAQI
27th Jul 2025549 AMAQI
27th Jul 20255610 AMAQI
27th Jul 20256411 AMAQI
27th Jul 20256012 PMAQI
27th Jul 2025561 PMAQI
27th Jul 2025582 PMAQI
27th Jul 2025593 PMAQI
27th Jul 2025574 PMAQI
27th Jul 2025545 PMAQI
27th Jul 2025546 PMAQI
27th Jul 2025567 PMAQI
27th Jul 2025608 PMAQI
27th Jul 2025609 PMAQI
27th Jul 20256010 PMAQI
27th Jul 20256111 PMAQI
28th Jul 20256212 AMAQI
28th Jul 2025621 AMAQI
28th Jul 2025612 AMAQI
28th Jul 2025613 AMAQI
28th Jul 2025604 AMAQI
28th Jul 2025615 AMAQI
28th Jul 2025606 AMAQI
28°C25/32°C
28th Jul 2025607 AMAQI
28th Jul 2025628 AMAQI
28th Jul 2025609 AMAQI
28th Jul 20256310 AMAQI
28th Jul 20256011 AMAQI
28th Jul 20255812 PMAQI
28th Jul 2025541 PMAQI
28th Jul 2025582 PMAQI
28th Jul 2025593 PMAQI
28th Jul 2025594 PMAQI
28th Jul 2025555 PMAQI
28th Jul 2025556 PMAQI
28th Jul 2025557 PMAQI
28th Jul 2025628 PMAQI
28th Jul 2025609 PMAQI
28th Jul 20255810 PMAQI
28th Jul 20255911 PMAQI
29th Jul 20256212 AMAQI
29th Jul 2025591 AMAQI
29th Jul 2025612 AMAQI
29th Jul 2025603 AMAQI
29th Jul 2025604 AMAQI
29th Jul 2025605 AMAQI
29th Jul 2025626 AMAQI
28°C26/32°C
29th Jul 2025607 AMAQI
29th Jul 2025588 AMAQI
29th Jul 2025619 AMAQI
29th Jul 20256610 AMAQI
29th Jul 20256411 AMAQI
29th Jul 20256212 PMAQI
29th Jul 2025611 PMAQI
29th Jul 2025622 PMAQI
29th Jul 2025653 PMAQI
29th Jul 2025664 PMAQI
29th Jul 2025635 PMAQI
29th Jul 2025626 PMAQI
29th Jul 2025647 PMAQI
29th Jul 2025648 PMAQI
29th Jul 2025649 PMAQI
29th Jul 20256610 PMAQI
29th Jul 20256611 PMAQI
30th Jul 20256312 AMAQI
30th Jul 2025651 AMAQI
30th Jul 2025642 AMAQI
30th Jul 2025643 AMAQI
30th Jul 2025624 AMAQI
30th Jul 2025615 AMAQI
30th Jul 2025606 AMAQI
28°C26/32°C
30th Jul 2025607 AMAQI
30th Jul 2025628 AMAQI
30th Jul 2025649 AMAQI
30th Jul 20257010 AMAQI
30th Jul 20256711 AMAQI
30th Jul 20256512 PMAQI
30th Jul 2025671 PMAQI
30th Jul 2025652 PMAQI
30th Jul 2025623 PMAQI
30th Jul 2025624 PMAQI
30th Jul 2025645 PMAQI
30th Jul 2025626 PMAQI
30th Jul 2025637 PMAQI
30th Jul 2025648 PMAQI
30th Jul 2025669 PMAQI
30th Jul 20256510 PMAQI
30th Jul 20256211 PMAQI
31st Jul 20255912 AMAQI
31st Jul 2025621 AMAQI
31st Jul 2025622 AMAQI
31st Jul 2025613 AMAQI
31st Jul 2025614 AMAQI
31st Jul 2025615 AMAQI
31st Jul 2025616 AMAQI
29°C26/32°C
31st Jul 2025617 AMAQI
31st Jul 2025618 AMAQI
31st Jul 2025619 AMAQI
31st Jul 20256510 AMAQI
31st Jul 20256711 AMAQI
31st Jul 20256012 PMAQI
31st Jul 2025541 PMAQI
31st Jul 2025542 PMAQI
31st Jul 2025553 PMAQI
31st Jul 2025574 PMAQI
31st Jul 2025565 PMAQI
31st Jul 2025566 PMAQI
31st Jul 2025567 PMAQI
31st Jul 2025608 PMAQI
31st Jul 2025599 PMAQI
31st Jul 20255610 PMAQI
31st Jul 20256211 PMAQI
1st Aug 20256012 AMAQI
1st Aug 2025601 AMAQI
1st Aug 2025602 AMAQI
1st Aug 2025583 AMAQI
1st Aug 2025574 AMAQI
1st Aug 2025575 AMAQI
1st Aug 2025586 AMAQI
28°C26/32°C
1st Aug 2025587 AMAQI
1st Aug 2025578 AMAQI
1st Aug 2025569 AMAQI
1st Aug 20255710 AMAQI
1st Aug 20255811 AMAQI
1st Aug 20255712 PMAQI
1st Aug 2025551 PMAQI
1st Aug 2025532 PMAQI
1st Aug 2025523 PMAQI
1st Aug 2025554 PMAQI
1st Aug 2025555 PMAQI
1st Aug 2025556 PMAQI
1st Aug 2025567 PMAQI
1st Aug 2025588 PMAQI
1st Aug 2025579 PMAQI
1st Aug 20255610 PMAQI
1st Aug 20255611 PMAQI
2nd Aug 20255612 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025562 AMAQI
2nd Aug 2025573 AMAQI
2nd Aug 2025574 AMAQI
2nd Aug 2025575 AMAQI
2nd Aug 2025576 AMAQI
28°C26/32°C
2nd Aug 2025577 AMAQI
2nd Aug 2025538 AMAQI
2nd Aug 2025549 AMAQI
2nd Aug 20255410 AMAQI
2nd Aug 20255511 AMAQI
2nd Aug 20255412 PMAQI
2nd Aug 2025551 PMAQI
2nd Aug 2025562 PMAQI
2nd Aug 2025533 PMAQI
2nd Aug 2025554 PMAQI
2nd Aug 2025565 PMAQI
2nd Aug 2025576 PMAQI
2nd Aug 2025557 PMAQI
2nd Aug 2025568 PMAQI
2nd Aug 2025559 PMAQI
2nd Aug 20255610 PMAQI
2nd Aug 20255611 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025561 AMAQI
3rd Aug 2025562 AMAQI
3rd Aug 2025563 AMAQI
3rd Aug 2025564 AMAQI
3rd Aug 2025565 AMAQI
3rd Aug 2025556 AMAQI
29°C26/33°C
3rd Aug 2025557 AMAQI
3rd Aug 2025558 AMAQI
3rd Aug 2025539 AMAQI
3rd Aug 20255610 AMAQI
3rd Aug 20255411 AMAQI
3rd Aug 20255612 PMAQI
3rd Aug 2025551 PMAQI
3rd Aug 2025482 PMAQI
3rd Aug 2025543 PMAQI
3rd Aug 2025464 PMAQI
3rd Aug 2025465 PMAQI
3rd Aug 2025516 PMAQI
3rd Aug 2025517 PMAQI
3rd Aug 2025568 PMAQI
3rd Aug 2025549 PMAQI
3rd Aug 20255510 PMAQI
3rd Aug 20255911 PMAQI
4th Aug 20255712 AMAQI
4th Aug 2025541 AMAQI
4th Aug 2025552 AMAQI
4th Aug 2025553 AMAQI
4th Aug 2025554 AMAQI
4th Aug 2025565 AMAQI
4th Aug 2025566 AMAQI
28°C26/31°C
4th Aug 2025557 AMAQI
4th Aug 2025558 AMAQI
4th Aug 2025519 AMAQI
4th Aug 20255810 AMAQI
4th Aug 20255511 AMAQI
4th Aug 20256012 PMAQI
4th Aug 2025591 PMAQI
4th Aug 2025482 PMAQI
4th Aug 2025533 PMAQI
4th Aug 2025514 PMAQI
4th Aug 2025525 PMAQI
4th Aug 2025546 PMAQI
4th Aug 2025557 PMAQI
4th Aug 2025578 PMAQI
4th Aug 2025569 PMAQI
4th Aug 20255410 PMAQI
4th Aug 20255811 PMAQI
5th Aug 20255412 AMAQI
5th Aug 2025551 AMAQI
5th Aug 2025562 AMAQI
5th Aug 2025543 AMAQI
5th Aug 2025564 AMAQI
5th Aug 2025555 AMAQI
5th Aug 2025556 AMAQI
27°C26/29°C
5th Aug 2025557 AMAQI
5th Aug 2025348 AMAQI
5th Aug 2025399 AMAQI
5th Aug 20253410 AMAQI
5th Aug 20253511 AMAQI
5th Aug 20253112 PMAQI
5th Aug 2025361 PMAQI
5th Aug 2025482 PMAQI
5th Aug 2025533 PMAQI
5th Aug 2025424 PMAQI
5th Aug 2025595 PMAQI
5th Aug 2025586 PMAQI
5th Aug 2025547 PMAQI
5th Aug 2025568 PMAQI
5th Aug 2025579 PMAQI
5th Aug 20255810 PMAQI
5th Aug 20255611 PMAQI
6th Aug 20255012 AMAQI
6th Aug 2025541 AMAQI
6th Aug 2025552 AMAQI
6th Aug 2025543 AMAQI
6th Aug 2025544 AMAQI
6th Aug 2025535 AMAQI
6th Aug 2025536 AMAQI
26°C23/29°C
6th Aug 2025537 AMAQI
6th Aug 2025538 AMAQI
6th Aug 2025549 AMAQI
6th Aug 20255510 AMAQI
6th Aug 20255711 AMAQI
6th Aug 20256212 PMAQI
6th Aug 2025571 PMAQI
6th Aug 2025532 PMAQI
6th Aug 2025533 PMAQI
6th Aug 2025544 PMAQI
6th Aug 2025505 PMAQI
6th Aug 2025466 PMAQI
6th Aug 2025567 PMAQI
6th Aug 2025588 PMAQI
6th Aug 2025519 PMAQI
6th Aug 20255610 PMAQI
6th Aug 20256111 PMAQI
7th Aug 20255612 AMAQI
7th Aug 2025531 AMAQI
7th Aug 2025542 AMAQI
7th Aug 2025543 AMAQI
7th Aug 2025544 AMAQI
7th Aug 2025545 AMAQI
7th Aug 2025556 AMAQI
28°C25/30°C
7th Aug 2025547 AMAQI
7th Aug 2025508 AMAQI
7th Aug 2025559 AMAQI
7th Aug 20256310 AMAQI
7th Aug 20256611 AMAQI
7th Aug 20256512 PMAQI
7th Aug 2025591 PMAQI
7th Aug 2025702 PMAQI
7th Aug 2025763 PMAQI
7th Aug 2025734 PMAQI
7th Aug 2025685 PMAQI
7th Aug 2025696 PMAQI
7th Aug 2025657 PMAQI
7th Aug 2025638 PMAQI
7th Aug 2025629 PMAQI
7th Aug 20256410 PMAQI
7th Aug 20256511 PMAQI
8th Aug 20256312 AMAQI
8th Aug 2025581 AMAQI
8th Aug 2025562 AMAQI
8th Aug 2025573 AMAQI
8th Aug 2025584 AMAQI
8th Aug 2025585 AMAQI
8th Aug 2025586 AMAQI
28°C25/32°C
8th Aug 2025587 AMAQI
7 AM8th Aug 2025718 AMAQI
8th Aug 2025779 AMAQI
8th Aug 20257910 AMAQI
8th Aug 20258211 AMAQI
8th Aug 20257412 PMAQI
8th Aug 2025681 PMAQI
1 PM8th Aug 2025702 PMAQI
8th Aug 2025723 PMAQI
7 PM
1 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
7 AM - 7 PM
58AQI
13 hours / Day
390 hours / Month
Avg. Lowest Time
7 AM - 7 PM
58AQI
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. 58), while the lowest AQI was between 7 AM to 7 PM (Avg. 58).
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
Western Water Catchment, West Region, Singapore
2025
41%
90
59%
129
Total number of days with different AQI categories in last 220 days in 2025 (145 days remaining)
Good
90 DaysModerate
129 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 41%
Health Risk Level:
Significant
In 2025, 41% of 220 days were within WHO’s safe air quality limits, and 59% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Western Water Catchment, West 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
49AQI
49AQI
2nd January 2025
56AQI
56AQI
3rd January 2025
55AQI
55AQI
4th January 2025
50AQI
50AQI
5th January 2025
49AQI
49AQI
6th January 2025
48AQI
48AQI
7th January 2025
54AQI
54AQI
8th January 2025
52AQI
52AQI
9th January 2025
58AQI
58AQI
10th January 2025
52AQI
52AQI
11th January 2025
42AQI
42AQI
12th January 2025
47AQI
47AQI
13th January 2025
45AQI
45AQI
14th January 2025
54AQI
54AQI
15th January 2025
75AQI
75AQI
16th January 2025
48AQI
48AQI
17th January 2025
45AQI
45AQI
18th January 2025
44AQI
44AQI
19th January 2025
45AQI
45AQI
20th January 2025
45AQI
45AQI
21st January 2025
47AQI
47AQI
22nd January 2025
58AQI
58AQI
23rd January 2025
52AQI
52AQI
24th January 2025
53AQI
53AQI
25th January 2025
49AQI
49AQI
26th January 2025
49AQI
49AQI
27th January 2025
44AQI
44AQI
28th January 2025
54AQI
54AQI
29th January 2025
51AQI
51AQI
30th January 2025
53AQI
53AQI
31st January 2025
52AQI
52AQI
1st February 2025
54AQI
54AQI
2nd February 2025
57AQI
57AQI
3rd February 2025
64AQI
64AQI
4th February 2025
51AQI
51AQI
5th February 2025
51AQI
51AQI
6th February 2025
61AQI
61AQI
7th February 2025
53AQI
53AQI
8th February 2025
53AQI
53AQI
9th February 2025
50AQI
50AQI
10th February 2025
52AQI
52AQI
11th February 2025
45AQI
45AQI
12th February 2025
57AQI
57AQI
13th February 2025
56AQI
56AQI
14th February 2025
51AQI
51AQI
15th February 2025
56AQI
56AQI
16th February 2025
49AQI
49AQI
17th February 2025
53AQI
53AQI
18th February 2025
45AQI
45AQI
19th February 2025
52AQI
52AQI
20th February 2025
52AQI
52AQI
21st February 2025
51AQI
51AQI
22nd February 2025
49AQI
49AQI
23rd February 2025
47AQI
47AQI
24th February 2025
43AQI
43AQI
25th February 2025
46AQI
46AQI
26th February 2025
49AQI
49AQI
27th February 2025
44AQI
44AQI
28th February 2025
49AQI
49AQI
1st March 2025
50AQI
50AQI
2nd March 2025
45AQI
45AQI
3rd March 2025
57AQI
57AQI
4th March 2025
56AQI
56AQI
5th March 2025
60AQI
60AQI
6th March 2025
41AQI
41AQI
7th March 2025
56AQI
56AQI
8th March 2025
46AQI
46AQI
9th March 2025
46AQI
46AQI
10th March 2025
44AQI
44AQI
11th March 2025
40AQI
40AQI
12th March 2025
41AQI
41AQI
13th March 2025
44AQI
44AQI
14th March 2025
37AQI
37AQI
15th March 2025
44AQI
44AQI
16th March 2025
38AQI
38AQI
17th March 2025
39AQI
39AQI
18th March 2025
45AQI
45AQI
19th March 2025
41AQI
41AQI
20th March 2025
38AQI
38AQI
21st March 2025
53AQI
53AQI
22nd March 2025
48AQI
48AQI
23rd March 2025
41AQI
41AQI
24th March 2025
51AQI
51AQI
25th March 2025
63AQI
63AQI
26th March 2025
71AQI
71AQI
27th March 2025
68AQI
68AQI
28th March 2025
59AQI
59AQI
29th March 2025
70AQI
70AQI
30th March 2025
64AQI
64AQI
31st March 2025
62AQI
62AQI
1st April 2025
60AQI
60AQI
2nd April 2025
48AQI
48AQI
3rd April 2025
49AQI
49AQI
4th April 2025
49AQI
49AQI
5th April 2025
45AQI
45AQI
6th April 2025
44AQI
44AQI
7th April 2025
38AQI
38AQI
8th April 2025
49AQI
49AQI
9th April 2025
43AQI
43AQI
10th April 2025
55AQI
55AQI
11th April 2025
44AQI
44AQI
12th April 2025
49AQI
49AQI
13th April 2025
40AQI
40AQI
14th April 2025
45AQI
45AQI
15th April 2025
42AQI
42AQI
16th April 2025
50AQI
50AQI
17th April 2025
41AQI
41AQI
18th April 2025
53AQI
53AQI
19th April 2025
42AQI
42AQI
20th April 2025
41AQI
41AQI
21st April 2025
46AQI
46AQI
22nd April 2025
52AQI
52AQI
23rd April 2025
49AQI
49AQI
24th April 2025
54AQI
54AQI
25th April 2025
60AQI
60AQI
26th April 2025
52AQI
52AQI
27th April 2025
56AQI
56AQI
28th April 2025
50AQI
50AQI
29th April 2025
53AQI
53AQI
30th April 2025
45AQI
45AQI
1st May 2025
49AQI
49AQI
2nd May 2025
52AQI
52AQI
3rd May 2025
45AQI
45AQI
4th May 2025
43AQI
43AQI
5th May 2025
48AQI
48AQI
6th May 2025
48AQI
48AQI
7th May 2025
56AQI
56AQI
8th May 2025
55AQI
55AQI
9th May 2025
52AQI
52AQI
10th May 2025
57AQI
57AQI
11th May 2025
46AQI
46AQI
12th May 2025
52AQI
52AQI
13th May 2025
56AQI
56AQI
14th May 2025
52AQI
52AQI
15th May 2025
58AQI
58AQI
16th May 2025
52AQI
52AQI
17th May 2025
56AQI
56AQI
18th May 2025
48AQI
48AQI
19th May 2025
52AQI
52AQI
20th May 2025
51AQI
51AQI
21st May 2025
51AQI
51AQI
22nd May 2025
52AQI
52AQI
23rd May 2025
46AQI
46AQI
24th May 2025
50AQI
50AQI
25th May 2025
50AQI
50AQI
26th May 2025
47AQI
47AQI
27th May 2025
51AQI
51AQI
28th May 2025
51AQI
51AQI
29th May 2025
49AQI
49AQI
30th May 2025
54AQI
54AQI
31st May 2025
53AQI
53AQI
1st June 2025
51AQI
51AQI
2nd June 2025
52AQI
52AQI
3rd June 2025
56AQI
56AQI
4th June 2025
58AQI
58AQI
5th June 2025
60AQI
60AQI
6th June 2025
49AQI
49AQI
7th June 2025
52AQI
52AQI
8th June 2025
46AQI
46AQI
9th June 2025
50AQI
50AQI
10th June 2025
43AQI
43AQI
11th June 2025
48AQI
48AQI
12th June 2025
54AQI
54AQI
13th June 2025
49AQI
49AQI
14th June 2025
47AQI
47AQI
15th June 2025
43AQI
43AQI
16th June 2025
43AQI
43AQI
17th June 2025
47AQI
47AQI
18th June 2025
45AQI
45AQI
19th June 2025
46AQI
46AQI
20th June 2025
51AQI
51AQI
21st June 2025
54AQI
54AQI
22nd June 2025
57AQI
57AQI
23rd June 2025
56AQI
56AQI
24th June 2025
54AQI
54AQI
25th June 2025
53AQI
53AQI
26th June 2025
56AQI
56AQI
27th June 2025
59AQI
59AQI
28th June 2025
58AQI
58AQI
29th June 2025
53AQI
53AQI
30th June 2025
56AQI
56AQI
1st July 2025
54AQI
54AQI
2nd July 2025
53AQI
53AQI
3rd July 2025
57AQI
57AQI
4th July 2025
56AQI
56AQI
5th July 2025
55AQI
55AQI
6th July 2025
54AQI
54AQI
7th July 2025
53AQI
53AQI
8th July 2025
54AQI
54AQI
9th July 2025
52AQI
52AQI
10th July 2025
52AQI
52AQI
11th July 2025
54AQI
54AQI
12th July 2025
53AQI
53AQI
13th July 2025
54AQI
54AQI
14th July 2025
54AQI
54AQI
15th July 2025
54AQI
54AQI
16th July 2025
56AQI
56AQI
17th July 2025
55AQI
55AQI
18th July 2025
57AQI
57AQI
19th July 2025
58AQI
58AQI
20th July 2025
58AQI
58AQI
21st July 2025
58AQI
58AQI
22nd July 2025
61AQI
61AQI
23rd July 2025
65AQI
65AQI
24th July 2025
64AQI
64AQI
25th July 2025
64AQI
64AQI
26th July 2025
61AQI
61AQI
27th July 2025
60AQI
60AQI
28th July 2025
59AQI
59AQI
29th July 2025
64AQI
64AQI
30th July 2025
63AQI
63AQI
31st July 2025
60AQI
60AQI
1st August 2025
57AQI
57AQI
2nd August 2025
56AQI
56AQI
3rd August 2025
55AQI
55AQI
4th August 2025
55AQI
55AQI
5th August 2025
52AQI
52AQI
6th August 2025
54AQI
54AQI
7th August 2025
59AQI
59AQI
51AQI
51AQI
50AQI
48AQI
51AQI
52AQI
57AQI
55AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202552AQI
16
15
11
17
18
13
21
9
12
19
12
18
31
7
90
129
Highest AQI recorded in
July57AQI
Lowest AQI recorded in
April48AQI
202450AQI
31
24
5
22
9
22
8
22
9
13
17
4
27
11
20
8
22
11
20
18
12
22
9
208
158
Highest AQI recorded in
July65AQI
Lowest AQI recorded in
January33AQI
202334AQI
29
2
28
31
28
2
30
1
28
2
29
2
28
3
23
7
15
16
24
5
30
1
323
41
Highest AQI recorded in
October50AQI
Lowest AQI recorded in
July28AQI
202237AQI
3
21
27
4
21
9
21
10
21
9
18
4
1
20
8
31
29
1
30
1
242
47
Highest AQI recorded in
August61AQI
Lowest AQI recorded in
January21AQI
202142AQI
27
4
20
8
24
7
15
15
26
5
18
12
22
9
28
3
26
4
17
14
24
6
30
1
277
88
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
January33AQI
202036AQI
12
1
18
3
16
2
30
29
2
24
7
26
4
25
6
30
28
3
238
28
Highest AQI recorded in
April43AQI
Lowest AQI recorded in
November31AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
52AQILeast Polluted Year Recorded
2023(Avg.)
34AQIWestern Water Catchment's annual 2025 AQI (52) shows an average percentage change of 31.5% (worsened AQI) compared to previous years: 2020 (36), 2021 (42), 2022 (37), 2023 (34), 2024 (50).
