Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Colombo, Western, Sri Lanka 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

Colombo, Western, Sri Lanka

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Aug 2025
73AQI
Lowest AQI recorded on
29th Aug 2021
18AQI

Same Day Analysis (20th 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

Globe

Day & Night AQI Trend: 20th Aug - 21st Aug 2025

Colombo, Western, Sri Lanka

AQI
Day
Night
.

6 AM20th Aug 2025

6 PM

5 AM21st Aug 2025

Day time
Avg. Highest Time
9AM20th Aug

71AQI

Avg. Lowest Time
7AM20th Aug

55AQI

Night time
Avg. Highest Time
11PM20th Aug

70AQI

Avg. Lowest Time
3AM21st Aug

59AQI

In the last 24 hours,

Colombo's AQI reached its highest point of 71 at 9 AM during the Day, while the lowest point, 55, was recorded at 7 AM during the Day between 20th Aug and 21st Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Colombo, Western, Sri Lanka

JulAug
22nd - 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 - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st
Day
Night
22nd Jul 2025416 AMAQI
22nd Jul 2025547 AMAQI
22nd Jul 2025418 AMAQI
22nd Jul 2025519 AMAQI
22nd Jul 20255210 AMAQI
22nd Jul 20254711 AMAQI
22nd Jul 20254712 PMAQI
22nd Jul 2025421 PMAQI
22nd Jul 2025482 PMAQI
22nd Jul 2025483 PMAQI
22nd Jul 2025494 PMAQI
22nd Jul 2025415 PMAQI
22nd Jul 2025496 PMAQI
22nd Jul 2025497 PMAQI
22nd Jul 2025508 PMAQI
22nd Jul 2025489 PMAQI
22nd Jul 20254610 PMAQI
22nd Jul 20254811 PMAQI
23rd Jul 20254912 AMAQI
23rd Jul 2025531 AMAQI
23rd Jul 2025512 AMAQI
23rd Jul 2025523 AMAQI
23rd Jul 2025534 AMAQI
23rd Jul 2025495 AMAQI

26°C26/27°C

23rd Jul 2025506 AMAQI
23rd Jul 2025557 AMAQI
23rd Jul 2025548 AMAQI
23rd Jul 2025449 AMAQI
23rd Jul 20253310 AMAQI
23rd Jul 20254011 AMAQI
23rd Jul 20254212 PMAQI
23rd Jul 2025461 PMAQI
23rd Jul 2025462 PMAQI
23rd Jul 2025503 PMAQI
23rd Jul 2025454 PMAQI
23rd Jul 2025455 PMAQI
23rd Jul 2025526 PMAQI
23rd Jul 2025527 PMAQI
23rd Jul 2025528 PMAQI
23rd Jul 2025499 PMAQI
23rd Jul 20254910 PMAQI
23rd Jul 20255311 PMAQI
24th Jul 20255212 AMAQI
24th Jul 2025531 AMAQI
24th Jul 2025522 AMAQI
24th Jul 2025533 AMAQI
24th Jul 2025534 AMAQI
24th Jul 2025505 AMAQI

26°C25/27°C

24th Jul 2025436 AMAQI
24th Jul 2025577 AMAQI
24th Jul 2025588 AMAQI
24th Jul 2025529 AMAQI
24th Jul 20254710 AMAQI
24th Jul 20255311 AMAQI
24th Jul 20255112 PMAQI
24th Jul 2025441 PMAQI
24th Jul 2025482 PMAQI
24th Jul 2025533 PMAQI
24th Jul 2025484 PMAQI
24th Jul 2025485 PMAQI
24th Jul 2025536 PMAQI
24th Jul 2025527 PMAQI
24th Jul 2025518 PMAQI
24th Jul 2025549 PMAQI
24th Jul 20255410 PMAQI
24th Jul 20255511 PMAQI
25th Jul 20254812 AMAQI
25th Jul 2025531 AMAQI
25th Jul 2025552 AMAQI
25th Jul 2025543 AMAQI
25th Jul 2025544 AMAQI
25th Jul 2025595 AMAQI

27°C25/28°C

25th Jul 2025686 AMAQI
25th Jul 2025777 AMAQI
25th Jul 2025688 AMAQI
25th Jul 2025589 AMAQI
25th Jul 20256010 AMAQI
25th Jul 20256111 AMAQI
25th Jul 20255412 PMAQI
25th Jul 2025571 PMAQI
25th Jul 2025512 PMAQI
25th Jul 2025523 PMAQI
25th Jul 2025564 PMAQI
25th Jul 2025575 PMAQI
25th Jul 2025536 PMAQI
25th Jul 2025587 PMAQI
25th Jul 2025528 PMAQI
25th Jul 2025539 PMAQI
25th Jul 20255010 PMAQI
25th Jul 20255311 PMAQI
26th Jul 20255512 AMAQI
26th Jul 2025561 AMAQI
26th Jul 2025592 AMAQI
26th Jul 2025603 AMAQI
26th Jul 2025604 AMAQI
26th Jul 2025595 AMAQI

26°C25/28°C

26th Jul 2025566 AMAQI
26th Jul 2025637 AMAQI
26th Jul 2025588 AMAQI
26th Jul 2025589 AMAQI
26th Jul 20256010 AMAQI
26th Jul 20256011 AMAQI
26th Jul 20255612 PMAQI
26th Jul 2025531 PMAQI
26th Jul 2025502 PMAQI
26th Jul 2025513 PMAQI
26th Jul 2025514 PMAQI
26th Jul 2025525 PMAQI
26th Jul 2025546 PMAQI
26th Jul 2025567 PMAQI
26th Jul 2025558 PMAQI
26th Jul 2025539 PMAQI
26th Jul 20255410 PMAQI
26th Jul 20255611 PMAQI
27th Jul 20255812 AMAQI
27th Jul 2025561 AMAQI
27th Jul 2025592 AMAQI
27th Jul 2025593 AMAQI
27th Jul 2025584 AMAQI
27th Jul 2025595 AMAQI

25°C24/25°C

27th Jul 2025576 AMAQI
27th Jul 2025617 AMAQI
27th Jul 2025578 AMAQI
27th Jul 2025479 AMAQI
27th Jul 20255610 AMAQI
27th Jul 20255211 AMAQI
27th Jul 20255312 PMAQI
27th Jul 2025461 PMAQI
27th Jul 2025492 PMAQI
27th Jul 2025473 PMAQI
27th Jul 2025484 PMAQI
27th Jul 2025565 PMAQI
27th Jul 2025566 PMAQI
27th Jul 2025577 PMAQI
27th Jul 2025578 PMAQI
27th Jul 2025579 PMAQI
27th Jul 20255710 PMAQI
27th Jul 20255611 PMAQI
28th Jul 20255512 AMAQI
28th Jul 2025571 AMAQI
28th Jul 2025592 AMAQI
28th Jul 2025583 AMAQI
28th Jul 2025594 AMAQI
28th Jul 2025525 AMAQI

26°C25/28°C

28th Jul 2025346 AMAQI
28th Jul 2025547 AMAQI
28th Jul 2025568 AMAQI
28th Jul 2025549 AMAQI
28th Jul 20255710 AMAQI
28th Jul 20255211 AMAQI
28th Jul 20255412 PMAQI
28th Jul 2025461 PMAQI
28th Jul 2025482 PMAQI
28th Jul 2025473 PMAQI
28th Jul 2025464 PMAQI
28th Jul 2025505 PMAQI
28th Jul 2025546 PMAQI
28th Jul 2025547 PMAQI
28th Jul 2025548 PMAQI
28th Jul 2025549 PMAQI
28th Jul 20255110 PMAQI
28th Jul 20255511 PMAQI
29th Jul 20255512 AMAQI
29th Jul 2025541 AMAQI
29th Jul 2025552 AMAQI
29th Jul 2025543 AMAQI
29th Jul 2025544 AMAQI
29th Jul 2025565 AMAQI

27°C26/28°C

29th Jul 2025616 AMAQI
29th Jul 2025657 AMAQI
29th Jul 2025608 AMAQI
29th Jul 2025519 AMAQI
29th Jul 20255510 AMAQI
29th Jul 20255411 AMAQI
29th Jul 20255412 PMAQI
29th Jul 2025481 PMAQI
29th Jul 2025512 PMAQI
29th Jul 2025503 PMAQI
29th Jul 2025494 PMAQI
29th Jul 2025565 PMAQI
29th Jul 2025556 PMAQI
29th Jul 2025567 PMAQI
29th Jul 2025558 PMAQI
29th Jul 2025579 PMAQI
29th Jul 20255810 PMAQI
29th Jul 20255911 PMAQI
30th Jul 20255912 AMAQI
30th Jul 2025561 AMAQI
30th Jul 2025562 AMAQI
30th Jul 2025573 AMAQI
30th Jul 2025584 AMAQI
30th Jul 2025635 AMAQI

27°C26/28°C

30th Jul 2025846 AMAQI
30th Jul 2025837 AMAQI
30th Jul 2025798 AMAQI
30th Jul 2025569 AMAQI
30th Jul 20255410 AMAQI
30th Jul 20255211 AMAQI
30th Jul 20254812 PMAQI
30th Jul 2025501 PMAQI
30th Jul 2025532 PMAQI
30th Jul 2025523 PMAQI
30th Jul 2025524 PMAQI
30th Jul 2025545 PMAQI
30th Jul 2025576 PMAQI
30th Jul 2025597 PMAQI
30th Jul 2025588 PMAQI
30th Jul 2025589 PMAQI
30th Jul 20255810 PMAQI
30th Jul 20255811 PMAQI
31st Jul 20255812 AMAQI
31st Jul 2025601 AMAQI
31st Jul 2025602 AMAQI
31st Jul 2025603 AMAQI
31st Jul 2025604 AMAQI
31st Jul 2025605 AMAQI

27°C26/28°C

31st Jul 2025606 AMAQI
31st Jul 2025557 AMAQI
31st Jul 2025408 AMAQI
31st Jul 2025479 AMAQI
31st Jul 20255810 AMAQI
31st Jul 20255211 AMAQI
31st Jul 20255512 PMAQI
31st Jul 2025581 PMAQI
31st Jul 2025542 PMAQI
31st Jul 2025523 PMAQI
31st Jul 2025554 PMAQI
31st Jul 2025635 PMAQI
31st Jul 2025706 PMAQI
31st Jul 2025747 PMAQI
31st Jul 2025848 PMAQI
31st Jul 2025789 PMAQI
31st Jul 20257410 PMAQI
31st Jul 20257411 PMAQI
1st Aug 20256812 AMAQI
1st Aug 2025651 AMAQI
1st Aug 2025652 AMAQI
1st Aug 2025633 AMAQI
1st Aug 2025654 AMAQI
1st Aug 2025665 AMAQI

27°C26/28°C

1st Aug 2025666 AMAQI
1st Aug 2025597 AMAQI
1st Aug 2025658 AMAQI
1st Aug 2025719 AMAQI
1st Aug 20256610 AMAQI
1st Aug 20257111 AMAQI
1st Aug 20258112 PMAQI
1st Aug 2025681 PMAQI
1st Aug 2025782 PMAQI
1st Aug 2025783 PMAQI
1st Aug 2025644 PMAQI
1st Aug 2025725 PMAQI
1st Aug 2025686 PMAQI
1st Aug 2025737 PMAQI
1st Aug 2025688 PMAQI
1st Aug 2025699 PMAQI
1st Aug 20257310 PMAQI
1st Aug 20257811 PMAQI
2nd Aug 20257012 AMAQI
2nd Aug 2025681 AMAQI
2nd Aug 2025662 AMAQI
2nd Aug 2025673 AMAQI
2nd Aug 2025654 AMAQI
2nd Aug 2025665 AMAQI

27°C26/28°C

2nd Aug 2025686 AMAQI
2nd Aug 2025667 AMAQI
2nd Aug 2025728 AMAQI
2nd Aug 2025809 AMAQI
2nd Aug 20258110 AMAQI
2nd Aug 20257711 AMAQI
2nd Aug 20257812 PMAQI
2nd Aug 2025761 PMAQI
2nd Aug 2025822 PMAQI
2nd Aug 20251023 PMAQI
2nd Aug 2025814 PMAQI
2nd Aug 2025745 PMAQI
2nd Aug 2025706 PMAQI
2nd Aug 2025707 PMAQI
2nd Aug 2025788 PMAQI
2nd Aug 2025729 PMAQI
2nd Aug 20256810 PMAQI
2nd Aug 20257011 PMAQI
3rd Aug 20257312 AMAQI
3rd Aug 2025721 AMAQI
3rd Aug 2025722 AMAQI
3rd Aug 2025703 AMAQI
3rd Aug 2025704 AMAQI
3rd Aug 2025695 AMAQI

26°C26/28°C

3rd Aug 2025776 AMAQI
3rd Aug 2025687 AMAQI
3rd Aug 2025738 AMAQI
3rd Aug 2025679 AMAQI
3rd Aug 20257510 AMAQI
3rd Aug 20257811 AMAQI
3rd Aug 20258212 PMAQI
3rd Aug 2025801 PMAQI
3rd Aug 2025762 PMAQI
3rd Aug 2025673 PMAQI
3rd Aug 2025624 PMAQI
3rd Aug 2025685 PMAQI
3rd Aug 2025666 PMAQI
3rd Aug 2025697 PMAQI
3rd Aug 2025718 PMAQI
3rd Aug 2025709 PMAQI
3rd Aug 20257010 PMAQI
3rd Aug 20256911 PMAQI
4th Aug 20257212 AMAQI
4th Aug 2025741 AMAQI
4th Aug 2025752 AMAQI
4th Aug 2025743 AMAQI
4th Aug 2025774 AMAQI
4th Aug 2025695 AMAQI

26°C25/26°C

4th Aug 2025636 AMAQI
4th Aug 2025607 AMAQI
4th Aug 2025628 AMAQI
4th Aug 2025729 AMAQI
4th Aug 20256010 AMAQI
4th Aug 20256011 AMAQI
4th Aug 20256012 PMAQI
4th Aug 2025661 PMAQI
4th Aug 2025622 PMAQI
4th Aug 2025663 PMAQI
4th Aug 2025644 PMAQI
4th Aug 2025665 PMAQI
4th Aug 2025676 PMAQI
4th Aug 2025687 PMAQI
4th Aug 2025708 PMAQI
4th Aug 2025729 PMAQI
4th Aug 20256910 PMAQI
4th Aug 20256811 PMAQI
5th Aug 20256512 AMAQI
5th Aug 2025691 AMAQI
5th Aug 2025682 AMAQI
5th Aug 2025683 AMAQI
5th Aug 2025684 AMAQI
5th Aug 2025655 AMAQI

26°C25/28°C

5th Aug 2025616 AMAQI
5th Aug 2025517 AMAQI
5th Aug 2025608 AMAQI
5th Aug 2025549 AMAQI
5th Aug 20255610 AMAQI
5th Aug 20256211 AMAQI
5th Aug 20256212 PMAQI
5th Aug 2025561 PMAQI
5th Aug 2025582 PMAQI
5th Aug 2025613 PMAQI
5th Aug 2025614 PMAQI
5th Aug 2025655 PMAQI
5th Aug 2025696 PMAQI
5th Aug 2025727 PMAQI
5th Aug 2025668 PMAQI
5th Aug 2025649 PMAQI
5th Aug 20256210 PMAQI
5th Aug 20256411 PMAQI
6th Aug 20256612 AMAQI
6th Aug 2025651 AMAQI
6th Aug 2025652 AMAQI
6th Aug 2025663 AMAQI
6th Aug 2025654 AMAQI
6th Aug 2025635 AMAQI

26°C25/27°C

6th Aug 2025696 AMAQI
6th Aug 2025647 AMAQI
6th Aug 2025608 AMAQI
6th Aug 2025649 AMAQI
6th Aug 20256710 AMAQI
6th Aug 20257011 AMAQI
6th Aug 20257112 PMAQI
6th Aug 2025821 PMAQI
6th Aug 2025672 PMAQI
6th Aug 2025643 PMAQI
6th Aug 2025614 PMAQI
6th Aug 2025635 PMAQI
6th Aug 2025636 PMAQI
6th Aug 2025707 PMAQI
6th Aug 2025678 PMAQI
6th Aug 2025679 PMAQI
6th Aug 20256110 PMAQI
6th Aug 20257011 PMAQI
7th Aug 20256312 AMAQI
7th Aug 2025701 AMAQI
7th Aug 2025702 AMAQI
7th Aug 2025693 AMAQI
7th Aug 2025684 AMAQI
7th Aug 2025635 AMAQI

26°C25/28°C

7th Aug 2025666 AMAQI
7th Aug 2025637 AMAQI
7th Aug 2025618 AMAQI
7th Aug 2025609 AMAQI
7th Aug 20256810 AMAQI
7th Aug 20255911 AMAQI
7th Aug 20255612 PMAQI
7th Aug 2025571 PMAQI
7th Aug 2025642 PMAQI
7th Aug 2025553 PMAQI
7th Aug 2025524 PMAQI
7th Aug 2025585 PMAQI
7th Aug 2025606 PMAQI
7th Aug 2025607 PMAQI
7th Aug 2025628 PMAQI
7th Aug 2025609 PMAQI
7th Aug 20256210 PMAQI
7th Aug 20255711 PMAQI
8th Aug 20256312 AMAQI
8th Aug 2025661 AMAQI
8th Aug 2025662 AMAQI
8th Aug 2025673 AMAQI
8th Aug 2025654 AMAQI
8th Aug 2025595 AMAQI

26°C26/28°C

8th Aug 2025436 AMAQI
8th Aug 2025467 AMAQI
8th Aug 2025488 AMAQI
8th Aug 2025529 AMAQI
8th Aug 20256010 AMAQI
8th Aug 20255911 AMAQI
8th Aug 20255712 PMAQI
8th Aug 2025621 PMAQI
8th Aug 2025562 PMAQI
8th Aug 2025553 PMAQI
8th Aug 2025554 PMAQI
8th Aug 2025585 PMAQI
8th Aug 2025646 PMAQI
8th Aug 2025647 PMAQI
8th Aug 2025648 PMAQI
8th Aug 2025669 PMAQI
8th Aug 20256410 PMAQI
8th Aug 20256211 PMAQI
9th Aug 20256412 AMAQI
9th Aug 2025621 AMAQI
9th Aug 2025632 AMAQI
9th Aug 2025643 AMAQI
9th Aug 2025654 AMAQI
9th Aug 2025615 AMAQI

26°C26/28°C

9th Aug 2025596 AMAQI
9th Aug 2025617 AMAQI
9th Aug 2025628 AMAQI
9th Aug 2025609 AMAQI
9th Aug 20256010 AMAQI
9th Aug 20255911 AMAQI
9th Aug 20255712 PMAQI
9th Aug 2025581 PMAQI
9th Aug 2025572 PMAQI
9th Aug 2025553 PMAQI
9th Aug 2025584 PMAQI
9th Aug 2025625 PMAQI
9th Aug 2025646 PMAQI
9th Aug 2025667 PMAQI
9th Aug 2025638 PMAQI
9th Aug 2025649 PMAQI
9th Aug 20256410 PMAQI
9th Aug 20256111 PMAQI
10th Aug 20256812 AMAQI
10th Aug 2025651 AMAQI
10th Aug 2025652 AMAQI
10th Aug 2025653 AMAQI
10th Aug 2025654 AMAQI
10th Aug 2025655 AMAQI

26°C25/28°C

10th Aug 2025636 AMAQI
10th Aug 2025667 AMAQI
10th Aug 2025608 AMAQI
10th Aug 2025519 AMAQI
10th Aug 20255910 AMAQI
10th Aug 20255911 AMAQI
10th Aug 20256012 PMAQI
10th Aug 2025591 PMAQI
10th Aug 2025622 PMAQI
10th Aug 2025623 PMAQI
10th Aug 2025614 PMAQI
10th Aug 2025665 PMAQI
10th Aug 2025686 PMAQI
10th Aug 2025667 PMAQI
10th Aug 2025648 PMAQI
10th Aug 2025659 PMAQI
10th Aug 20256410 PMAQI
10th Aug 20256211 PMAQI
11th Aug 20256612 AMAQI
11th Aug 2025671 AMAQI
11th Aug 2025682 AMAQI
11th Aug 2025673 AMAQI
11th Aug 2025684 AMAQI
11th Aug 2025605 AMAQI

26°C25/27°C

11th Aug 2025446 AMAQI
11th Aug 2025387 AMAQI
11th Aug 2025428 AMAQI
11th Aug 2025489 AMAQI
11th Aug 20255810 AMAQI
11th Aug 20255911 AMAQI
11th Aug 20256812 PMAQI
11th Aug 2025641 PMAQI
11th Aug 2025652 PMAQI
11th Aug 2025573 PMAQI
11th Aug 2025684 PMAQI
11th Aug 2025635 PMAQI
11th Aug 2025676 PMAQI
11th Aug 2025667 PMAQI
11th Aug 2025688 PMAQI
11th Aug 2025649 PMAQI
11th Aug 20256410 PMAQI
11th Aug 20256611 PMAQI
12th Aug 20256812 AMAQI
12th Aug 2025661 AMAQI
12th Aug 2025662 AMAQI
12th Aug 2025663 AMAQI
12th Aug 2025674 AMAQI
12th Aug 2025705 AMAQI

26°C25/28°C

12th Aug 2025596 AMAQI
12th Aug 2025607 AMAQI
12th Aug 2025578 AMAQI
12th Aug 2025629 AMAQI
12th Aug 20258210 AMAQI
12th Aug 20256711 AMAQI
12th Aug 20256612 PMAQI
12th Aug 2025701 PMAQI
12th Aug 2025702 PMAQI
12th Aug 2025703 PMAQI
12th Aug 2025644 PMAQI
12th Aug 2025655 PMAQI
12th Aug 2025656 PMAQI
12th Aug 2025677 PMAQI
12th Aug 2025788 PMAQI
12th Aug 2025689 PMAQI
12th Aug 20257110 PMAQI
12th Aug 20256711 PMAQI
13th Aug 20256812 AMAQI
13th Aug 2025671 AMAQI
13th Aug 2025662 AMAQI
13th Aug 2025653 AMAQI
13th Aug 2025654 AMAQI
13th Aug 2025645 AMAQI

26°C25/27°C

13th Aug 2025636 AMAQI
13th Aug 2025577 AMAQI
13th Aug 2025628 AMAQI
13th Aug 2025609 AMAQI
13th Aug 20256610 AMAQI
13th Aug 20256511 AMAQI
13th Aug 20256112 PMAQI
13th Aug 2025631 PMAQI
13th Aug 2025592 PMAQI
13th Aug 2025623 PMAQI
13th Aug 2025584 PMAQI
13th Aug 2025625 PMAQI
13th Aug 2025616 PMAQI
13th Aug 2025627 PMAQI
13th Aug 2025648 PMAQI
13th Aug 2025649 PMAQI
13th Aug 20256310 PMAQI
13th Aug 20256311 PMAQI
14th Aug 20256512 AMAQI
14th Aug 2025641 AMAQI
14th Aug 2025622 AMAQI
14th Aug 2025613 AMAQI
14th Aug 2025634 AMAQI
14th Aug 2025635 AMAQI

26°C26/27°C

14th Aug 2025616 AMAQI
14th Aug 2025597 AMAQI
14th Aug 2025628 AMAQI
14th Aug 2025569 AMAQI
14th Aug 20255810 AMAQI
14th Aug 20255711 AMAQI
14th Aug 20255512 PMAQI
14th Aug 2025631 PMAQI
14th Aug 2025612 PMAQI
14th Aug 2025583 PMAQI
14th Aug 2025614 PMAQI
14th Aug 2025605 PMAQI
14th Aug 2025636 PMAQI
14th Aug 2025657 PMAQI
14th Aug 2025628 PMAQI
14th Aug 2025599 PMAQI
14th Aug 20256410 PMAQI
14th Aug 20256811 PMAQI
15th Aug 20256312 AMAQI
15th Aug 2025621 AMAQI
15th Aug 2025612 AMAQI
15th Aug 2025643 AMAQI
15th Aug 2025634 AMAQI
15th Aug 2025545 AMAQI

26°C25/28°C

15th Aug 2025606 AMAQI
15th Aug 2025627 AMAQI
15th Aug 2025628 AMAQI
15th Aug 2025629 AMAQI
15th Aug 20256010 AMAQI
15th Aug 20255211 AMAQI
15th Aug 20256212 PMAQI
15th Aug 2025641 PMAQI
15th Aug 2025622 PMAQI
15th Aug 2025603 PMAQI
15th Aug 2025584 PMAQI
15th Aug 2025575 PMAQI
15th Aug 2025566 PMAQI
15th Aug 2025607 PMAQI
15th Aug 2025608 PMAQI
15th Aug 2025629 PMAQI
15th Aug 20256610 PMAQI
15th Aug 20256311 PMAQI
16th Aug 20256012 AMAQI
16th Aug 2025621 AMAQI
16th Aug 2025612 AMAQI
16th Aug 2025613 AMAQI
16th Aug 2025604 AMAQI
16th Aug 2025575 AMAQI

27°C26/28°C

16th Aug 2025566 AMAQI
16th Aug 2025607 AMAQI
16th Aug 2025578 AMAQI
16th Aug 2025599 AMAQI
16th Aug 20256510 AMAQI
16th Aug 20256711 AMAQI
16th Aug 20256012 PMAQI
16th Aug 2025661 PMAQI
16th Aug 2025602 PMAQI
16th Aug 2025603 PMAQI
16th Aug 2025584 PMAQI
16th Aug 2025615 PMAQI
16th Aug 2025626 PMAQI
16th Aug 2025647 PMAQI
16th Aug 2025678 PMAQI
16th Aug 2025649 PMAQI
16th Aug 20256510 PMAQI
16th Aug 20256911 PMAQI
17th Aug 20256112 AMAQI
17th Aug 2025601 AMAQI
17th Aug 2025602 AMAQI
17th Aug 2025603 AMAQI
17th Aug 2025614 AMAQI
17th Aug 2025575 AMAQI

27°C26/28°C

17th Aug 2025576 AMAQI
17th Aug 2025657 AMAQI
17th Aug 2025558 AMAQI
17th Aug 2025629 AMAQI
17th Aug 20256010 AMAQI
17th Aug 20255911 AMAQI
17th Aug 20256212 PMAQI
17th Aug 2025591 PMAQI
17th Aug 2025602 PMAQI
17th Aug 2025573 PMAQI
17th Aug 2025604 PMAQI
17th Aug 2025565 PMAQI
17th Aug 2025586 PMAQI
17th Aug 2025587 PMAQI
17th Aug 2025628 PMAQI
17th Aug 2025609 PMAQI
17th Aug 20256210 PMAQI
17th Aug 20255611 PMAQI
18th Aug 20256212 AMAQI
18th Aug 2025581 AMAQI
18th Aug 2025582 AMAQI
18th Aug 2025583 AMAQI
18th Aug 2025584 AMAQI
18th Aug 2025605 AMAQI

27°C26/28°C

18th Aug 2025606 AMAQI
18th Aug 2025607 AMAQI
18th Aug 2025618 AMAQI
18th Aug 2025589 AMAQI
18th Aug 20256110 AMAQI
18th Aug 20256211 AMAQI
18th Aug 20256612 PMAQI
18th Aug 2025621 PMAQI
18th Aug 2025662 PMAQI
18th Aug 2025613 PMAQI
18th Aug 2025634 PMAQI
18th Aug 2025605 PMAQI
18th Aug 2025626 PMAQI
18th Aug 2025647 PMAQI
18th Aug 2025618 PMAQI
18th Aug 2025629 PMAQI
18th Aug 20256010 PMAQI
18th Aug 20256011 PMAQI
19th Aug 20255812 AMAQI
19th Aug 2025571 AMAQI
19th Aug 2025552 AMAQI
19th Aug 2025543 AMAQI
19th Aug 2025564 AMAQI
19th Aug 2025615 AMAQI

27°C26/28°C

19th Aug 2025676 AMAQI
19th Aug 2025707 AMAQI
19th Aug 2025608 AMAQI
19th Aug 2025679 AMAQI
19th Aug 20256510 AMAQI
19th Aug 20256411 AMAQI
19th Aug 20256612 PMAQI
19th Aug 2025651 PMAQI
19th Aug 2025592 PMAQI
19th Aug 2025613 PMAQI
19th Aug 2025624 PMAQI
19th Aug 2025565 PMAQI
19th Aug 2025636 PMAQI
19th Aug 2025637 PMAQI
19th Aug 2025618 PMAQI
19th Aug 2025599 PMAQI
19th Aug 20256210 PMAQI
19th Aug 20256511 PMAQI
20th Aug 20255912 AMAQI
20th Aug 2025561 AMAQI
20th Aug 2025562 AMAQI
20th Aug 2025543 AMAQI
20th Aug 2025554 AMAQI
20th Aug 2025565 AMAQI

27°C26/28°C

20th Aug 2025566 AMAQI
20th Aug 2025557 AMAQI
20th Aug 2025648 AMAQI
20th Aug 2025719 AMAQI
20th Aug 20256610 AMAQI
20th Aug 20256411 AMAQI
20th Aug 20255712 PMAQI
20th Aug 2025581 PMAQI
20th Aug 2025642 PMAQI
20th Aug 2025623 PMAQI
20th Aug 2025624 PMAQI
20th Aug 2025605 PMAQI
20th Aug 2025626 PMAQI
20th Aug 2025647 PMAQI
20th Aug 2025688 PMAQI
20th Aug 2025669 PMAQI
20th Aug 20256810 PMAQI
20th Aug 20257011 PMAQI
21st Aug 20256312 AMAQI
21st Aug 2025601 AMAQI
21st Aug 2025592 AMAQI
21st Aug 2025593 AMAQI
21st Aug 2025604 AMAQI
21st Aug 2025625 AMAQI

27°C26/28°C

21st Aug 2025646 AMAQI
6 AM
21st Aug 2025647 AMAQI
21st Aug 2025668 AMAQI
21st Aug 2025809 AMAQI
21st Aug 20257010 AMAQI
21st Aug 20257211 AMAQI
21st Aug 20257712 PMAQI
12 PM
21st Aug 2025601 PMAQI
21st Aug 2025632 PMAQI
21st Aug 2025623 PMAQI
21st Aug 2025654 PMAQI
6 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 6 PM

60AQI

13 hours / Day
390 hours / Month
Avg. Lowest Time
6 AM - 6 PM

60AQI

13 hours / Day
390 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 6 PM (Avg. 60), while the lowest AQI was between 6 AM to 6 PM (Avg. 60).
Night time
Avg. Highest Time
12 AM - 11 PM

62AQI

11 hours / Day
330 hours / Month
Avg. Lowest Time
12 AM - 11 PM

62AQI

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. 62), while the lowest AQI was between 12 AM to 11 PM (Avg. 62).

2025 Days Vs Air Quality

Colombo, Western, Sri Lanka

2025

4%

9

86%

200

9%

22

0.4%

1

Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)

Good
9 Days
Moderate
200 Days
Poor
22 Days
Unhealthy
1 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 4%

Health Risk Level:

Extreme

In 2025, 4% of 233 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.

Annual Air Quality Insights

Colombo, Western, Sri Lanka

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
75AQI
2nd January 2025
86AQI
3rd January 2025
97AQI
4th January 2025
95AQI
5th January 2025
84AQI
6th January 2025
92AQI
7th January 2025
99AQI
8th January 2025
85AQI
9th January 2025
96AQI
10th January 2025
87AQI
11th January 2025
96AQI
12th January 2025
94AQI
13th January 2025
110AQI
14th January 2025
96AQI
15th January 2025
89AQI
16th January 2025
80AQI
17th January 2025
101AQI
18th January 2025
87AQI
19th January 2025
78AQI
20th January 2025
80AQI
21st January 2025
100AQI
22nd January 2025
90AQI
23rd January 2025
89AQI
24th January 2025
91AQI
25th January 2025
72AQI
26th January 2025
115AQI
27th January 2025
90AQI
28th January 2025
136AQI
29th January 2025
122AQI
30th January 2025
108AQI
31st January 2025
87AQI
1st February 2025
91AQI
2nd February 2025
83AQI
3rd February 2025
79AQI
4th February 2025
83AQI
5th February 2025
103AQI
6th February 2025
135AQI
7th February 2025
107AQI
8th February 2025
124AQI
9th February 2025
141AQI
10th February 2025
168AQI
11th February 2025
114AQI
12th February 2025
109AQI
13th February 2025
95AQI
14th February 2025
92AQI
15th February 2025
80AQI
16th February 2025
78AQI
17th February 2025
91AQI
18th February 2025
120AQI
19th February 2025
110AQI
20th February 2025
110AQI
21st February 2025
92AQI
22nd February 2025
96AQI
23rd February 2025
86AQI
24th February 2025
81AQI
25th February 2025
95AQI
26th February 2025
92AQI
27th February 2025
80AQI
28th February 2025
79AQI
1st March 2025
83AQI
2nd March 2025
69AQI
3rd March 2025
79AQI
4th March 2025
108AQI
5th March 2025
79AQI
6th March 2025
82AQI
7th March 2025
86AQI
8th March 2025
101AQI
9th March 2025
79AQI
10th March 2025
94AQI
11th March 2025
111AQI
12th March 2025
81AQI
13th March 2025
88AQI
14th March 2025
107AQI
15th March 2025
67AQI
16th March 2025
89AQI
17th March 2025
81AQI
18th March 2025
72AQI
19th March 2025
92AQI
20th March 2025
120AQI
21st March 2025
108AQI
22nd March 2025
93AQI
23rd March 2025
87AQI
24th March 2025
74AQI
25th March 2025
81AQI
26th March 2025
81AQI
27th March 2025
82AQI
28th March 2025
78AQI
29th March 2025
78AQI
30th March 2025
74AQI
31st March 2025
68AQI
1st April 2025
66AQI
2nd April 2025
64AQI
3rd April 2025
56AQI
4th April 2025
57AQI
5th April 2025
53AQI
6th April 2025
56AQI
7th April 2025
56AQI
8th April 2025
59AQI
9th April 2025
59AQI
10th April 2025
65AQI
11th April 2025
67AQI
12th April 2025
67AQI
13th April 2025
72AQI
14th April 2025
66AQI
15th April 2025
55AQI
16th April 2025
60AQI
17th April 2025
61AQI
18th April 2025
63AQI
19th April 2025
68AQI
20th April 2025
71AQI
21st April 2025
70AQI
22nd April 2025
68AQI
23rd April 2025
59AQI
24th April 2025
62AQI
25th April 2025
58AQI
26th April 2025
64AQI
27th April 2025
57AQI
28th April 2025
60AQI
29th April 2025
58AQI
30th April 2025
55AQI
1st May 2025
54AQI
2nd May 2025
46AQI
3rd May 2025
52AQI
4th May 2025
64AQI
5th May 2025
70AQI
6th May 2025
68AQI
7th May 2025
71AQI
8th May 2025
79AQI
9th May 2025
79AQI
10th May 2025
76AQI
11th May 2025
70AQI
12th May 2025
63AQI
13th May 2025
60AQI
14th May 2025
64AQI
15th May 2025
73AQI
16th May 2025
77AQI
17th May 2025
76AQI
18th May 2025
63AQI
19th May 2025
54AQI
20th May 2025
60AQI
21st May 2025
59AQI
22nd May 2025
63AQI
23rd May 2025
52AQI
24th May 2025
55AQI
25th May 2025
52AQI
26th May 2025
50AQI
27th May 2025
52AQI
28th May 2025
56AQI
29th May 2025
57AQI
30th May 2025
53AQI
31st May 2025
55AQI
1st June 2025
58AQI
2nd June 2025
58AQI
3rd June 2025
55AQI
4th June 2025
50AQI
5th June 2025
63AQI
6th June 2025
61AQI
7th June 2025
66AQI
8th June 2025
61AQI
9th June 2025
64AQI
10th June 2025
61AQI
11th June 2025
64AQI
12th June 2025
72AQI
13th June 2025
67AQI
14th June 2025
64AQI
15th June 2025
59AQI
16th June 2025
61AQI
17th June 2025
59AQI
18th June 2025
59AQI
19th June 2025
61AQI
20th June 2025
58AQI
21st June 2025
50AQI
22nd June 2025
46AQI
23rd June 2025
55AQI
24th June 2025
58AQI
25th June 2025
58AQI
26th June 2025
63AQI
27th June 2025
62AQI
28th June 2025
58AQI
29th June 2025
57AQI
30th June 2025
53AQI
1st July 2025
56AQI
2nd July 2025
58AQI
3rd July 2025
56AQI
4th July 2025
57AQI
5th July 2025
54AQI
6th July 2025
54AQI
7th July 2025
54AQI
8th July 2025
55AQI
9th July 2025
57AQI
10th July 2025
58AQI
11th July 2025
60AQI
12th July 2025
58AQI
13th July 2025
57AQI
14th July 2025
55AQI
15th July 2025
50AQI
16th July 2025
52AQI
17th July 2025
51AQI
18th July 2025
52AQI
19th July 2025
50AQI
20th July 2025
53AQI
21st July 2025
51AQI
22nd July 2025
48AQI
23rd July 2025
49AQI
24th July 2025
51AQI
25th July 2025
57AQI
26th July 2025
56AQI
27th July 2025
55AQI
28th July 2025
53AQI
29th July 2025
55AQI
30th July 2025
59AQI
31st July 2025
62AQI
1st August 2025
69AQI
2nd August 2025
73AQI
3rd August 2025
71AQI
4th August 2025
68AQI
5th August 2025
63AQI
6th August 2025
66AQI
7th August 2025
62AQI
8th August 2025
60AQI
9th August 2025
61AQI
10th August 2025
63AQI
11th August 2025
62AQI
12th August 2025
67AQI
13th August 2025
63AQI
14th August 2025
62AQI
15th August 2025
60AQI
16th August 2025
62AQI
17th August 2025
59AQI
18th August 2025
61AQI
19th August 2025
61AQI
20th August 2025
59AQI

94AQI

101AQI

86AQI

62AQI

62AQI

59AQI

55AQI

64AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202573AQI

25
6
17
10
1
25
6
30
2
29
3
27
4
27
20
9
200
22
1

Highest AQI recorded in

February

101AQI

Lowest AQI recorded in

July

55AQI

202462AQI

1
19
10
10
8
16
11
11
19
21
10
22
8
1
30
26
5
12
6
27
4
4
25
1
31
125
183
30

Highest AQI recorded in

March

96AQI

Lowest AQI recorded in

August

36AQI

202366AQI

17
14
1
20
7
1
18
12
1
26
3
12
19
14
16
8
17
12
19
25
5
10
21
4
15
5
26
93
219
36

Highest AQI recorded in

January

100AQI

Lowest AQI recorded in

September

43AQI

202273AQI

6
6
1
9
5
18
13
10
10
3
21
9
11
13
1
18
11
16
13
2
17
11
2
11
15
2
77
121
52
4

Highest AQI recorded in

December

106AQI

Lowest AQI recorded in

June

47AQI

202155AQI

3
20
6
1
19
9
2
16
12
9
7
26
5
22
8
29
2
25
5
21
3
21
9
13
4
1
171
99
27
1

Highest AQI recorded in

February

96AQI

Lowest AQI recorded in

August

35AQI

202052AQI

12
1
9
11
1
13
5
24
6
26
4
30
1
25
4
21
9
1
6
23
1
1
26
4
155
101
8

Highest AQI recorded in

March

80AQI

Lowest AQI recorded in

August

35AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
73AQI
Least Polluted Year Recorded
2020(Avg.)
52AQI

Colombo's annual 2025 AQI (73) shows an average percentage change of 20.5% (worsened AQI) compared to previous years: 2020 (52), 2021 (55), 2022 (73), 2023 (66), 2024 (62).