Colombo US Embassy, 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 US Embassy, Colombo, Western, Sri Lanka
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
2nd Aug 2025
73AQILowest AQI recorded on
29th Aug 2021
18AQISame Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 68 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Colombo US Embassy, Colombo, Western, Sri Lanka
AQI
Day
Night
.
6 AM5th Aug 2025
6 PM
5 AM6th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
7PM5th Aug
72AQI
Avg. Lowest Time
7AM5th Aug
51AQI
In the last 24 hours,
Colombo US Embassy's AQI reached its highest point of 72 at 7 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Colombo US Embassy, Colombo, Western, Sri Lanka
JulAug
07th - 08th08th - 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
Day
Night
7th Jul 2025376 AMAQI
7th Jul 2025547 AMAQI
7th Jul 2025468 AMAQI
7th Jul 2025469 AMAQI
7th Jul 20256210 AMAQI
7th Jul 20255511 AMAQI
7th Jul 20255612 PMAQI
7th Jul 2025571 PMAQI
7th Jul 2025582 PMAQI
7th Jul 2025543 PMAQI
7th Jul 2025554 PMAQI
7th Jul 2025565 PMAQI
7th Jul 2025566 PMAQI
7th Jul 2025577 PMAQI
7th Jul 2025588 PMAQI
7th Jul 2025579 PMAQI
7th Jul 20255410 PMAQI
7th Jul 20255411 PMAQI
8th Jul 20255512 AMAQI
8th Jul 2025541 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025563 AMAQI
8th Jul 2025564 AMAQI
8th Jul 2025505 AMAQI
28°C26/29°C
8th Jul 2025386 AMAQI
8th Jul 2025527 AMAQI
8th Jul 2025558 AMAQI
8th Jul 2025599 AMAQI
8th Jul 20256310 AMAQI
8th Jul 20255411 AMAQI
8th Jul 20255512 PMAQI
8th Jul 2025541 PMAQI
8th Jul 2025592 PMAQI
8th Jul 2025623 PMAQI
8th Jul 2025644 PMAQI
8th Jul 2025585 PMAQI
8th Jul 2025566 PMAQI
8th Jul 2025567 PMAQI
8th Jul 2025568 PMAQI
8th Jul 2025559 PMAQI
8th Jul 20255610 PMAQI
8th Jul 20255611 PMAQI
9th Jul 20255612 AMAQI
9th Jul 2025551 AMAQI
9th Jul 2025562 AMAQI
9th Jul 2025563 AMAQI
9th Jul 2025564 AMAQI
9th Jul 2025535 AMAQI
28°C27/29°C
9th Jul 2025466 AMAQI
9th Jul 2025577 AMAQI
9th Jul 2025528 AMAQI
9th Jul 2025619 AMAQI
9th Jul 20256610 AMAQI
9th Jul 20256211 AMAQI
9th Jul 20256012 PMAQI
9th Jul 2025601 PMAQI
9th Jul 2025582 PMAQI
9th Jul 2025563 PMAQI
9th Jul 2025544 PMAQI
9th Jul 2025555 PMAQI
9th Jul 2025586 PMAQI
9th Jul 2025577 PMAQI
9th Jul 2025578 PMAQI
9th Jul 2025579 PMAQI
9th Jul 20255710 PMAQI
9th Jul 20255711 PMAQI
10th Jul 20256012 AMAQI
10th Jul 2025581 AMAQI
10th Jul 2025582 AMAQI
10th Jul 2025593 AMAQI
10th Jul 2025594 AMAQI
10th Jul 2025555 AMAQI
28°C26/29°C
10th Jul 2025466 AMAQI
10th Jul 2025487 AMAQI
10th Jul 2025548 AMAQI
10th Jul 2025569 AMAQI
10th Jul 20256110 AMAQI
10th Jul 20255811 AMAQI
10th Jul 20255912 PMAQI
10th Jul 2025581 PMAQI
10th Jul 2025572 PMAQI
10th Jul 2025593 PMAQI
10th Jul 2025664 PMAQI
10th Jul 2025625 PMAQI
10th Jul 2025626 PMAQI
10th Jul 2025627 PMAQI
10th Jul 2025608 PMAQI
10th Jul 2025619 PMAQI
10th Jul 20256010 PMAQI
10th Jul 20255611 PMAQI
11th Jul 20255712 AMAQI
11th Jul 2025591 AMAQI
11th Jul 2025582 AMAQI
11th Jul 2025603 AMAQI
11th Jul 2025594 AMAQI
11th Jul 2025565 AMAQI
27°C27/28°C
11th Jul 2025506 AMAQI
11th Jul 2025557 AMAQI
11th Jul 2025578 AMAQI
11th Jul 2025549 AMAQI
11th Jul 20257210 AMAQI
11th Jul 20256811 AMAQI
11th Jul 20256812 PMAQI
11th Jul 2025621 PMAQI
11th Jul 2025622 PMAQI
11th Jul 2025623 PMAQI
11th Jul 2025704 PMAQI
11th Jul 2025595 PMAQI
11th Jul 2025606 PMAQI
11th Jul 2025597 PMAQI
11th Jul 2025608 PMAQI
11th Jul 2025619 PMAQI
11th Jul 20256210 PMAQI
11th Jul 20255911 PMAQI
12th Jul 20255712 AMAQI
12th Jul 2025581 AMAQI
12th Jul 2025602 AMAQI
12th Jul 2025603 AMAQI
12th Jul 2025604 AMAQI
12th Jul 2025585 AMAQI
27°C27/28°C
12th Jul 2025526 AMAQI
12th Jul 2025557 AMAQI
12th Jul 2025548 AMAQI
12th Jul 2025569 AMAQI
12th Jul 20255810 AMAQI
12th Jul 20256211 AMAQI
12th Jul 20255912 PMAQI
12th Jul 2025631 PMAQI
12th Jul 2025622 PMAQI
12th Jul 2025603 PMAQI
12th Jul 2025574 PMAQI
12th Jul 2025595 PMAQI
12th Jul 2025596 PMAQI
12th Jul 2025607 PMAQI
12th Jul 2025608 PMAQI
12th Jul 2025599 PMAQI
12th Jul 20255810 PMAQI
12th Jul 20255811 PMAQI
13th Jul 20255812 AMAQI
13th Jul 2025581 AMAQI
13th Jul 2025592 AMAQI
13th Jul 2025603 AMAQI
13th Jul 2025594 AMAQI
13th Jul 2025605 AMAQI
27°C26/28°C
13th Jul 2025406 AMAQI
13th Jul 2025467 AMAQI
13th Jul 2025538 AMAQI
13th Jul 2025579 AMAQI
13th Jul 20256110 AMAQI
13th Jul 20256211 AMAQI
13th Jul 20256212 PMAQI
13th Jul 2025621 PMAQI
13th Jul 2025582 PMAQI
13th Jul 2025583 PMAQI
13th Jul 2025574 PMAQI
13th Jul 2025565 PMAQI
13th Jul 2025576 PMAQI
13th Jul 2025577 PMAQI
13th Jul 2025608 PMAQI
13th Jul 2025629 PMAQI
13th Jul 20255910 PMAQI
13th Jul 20256011 PMAQI
14th Jul 20255812 AMAQI
14th Jul 2025581 AMAQI
14th Jul 2025582 AMAQI
14th Jul 2025593 AMAQI
14th Jul 2025614 AMAQI
14th Jul 2025545 AMAQI
27°C27/28°C
14th Jul 2025386 AMAQI
14th Jul 2025487 AMAQI
14th Jul 2025538 AMAQI
14th Jul 2025499 AMAQI
14th Jul 20255410 AMAQI
14th Jul 20255411 AMAQI
14th Jul 20255412 PMAQI
14th Jul 2025571 PMAQI
14th Jul 2025552 PMAQI
14th Jul 2025533 PMAQI
14th Jul 2025544 PMAQI
14th Jul 2025555 PMAQI
14th Jul 2025586 PMAQI
14th Jul 2025597 PMAQI
14th Jul 2025588 PMAQI
14th Jul 2025589 PMAQI
14th Jul 20255710 PMAQI
14th Jul 20255811 PMAQI
15th Jul 20255712 AMAQI
15th Jul 2025561 AMAQI
15th Jul 2025572 AMAQI
15th Jul 2025583 AMAQI
15th Jul 2025584 AMAQI
15th Jul 2025485 AMAQI
27°C27/29°C
15th Jul 2025296 AMAQI
15th Jul 2025447 AMAQI
15th Jul 2025508 AMAQI
15th Jul 2025489 AMAQI
15th Jul 20255310 AMAQI
15th Jul 20254711 AMAQI
15th Jul 20254612 PMAQI
15th Jul 2025431 PMAQI
15th Jul 2025502 PMAQI
15th Jul 2025463 PMAQI
15th Jul 2025444 PMAQI
15th Jul 2025485 PMAQI
15th Jul 2025536 PMAQI
15th Jul 2025547 PMAQI
15th Jul 2025548 PMAQI
15th Jul 2025539 PMAQI
15th Jul 20255310 PMAQI
15th Jul 20255211 PMAQI
16th Jul 20255412 AMAQI
16th Jul 2025561 AMAQI
16th Jul 2025552 AMAQI
16th Jul 2025563 AMAQI
16th Jul 2025554 AMAQI
16th Jul 2025485 AMAQI
27°C26/28°C
16th Jul 2025356 AMAQI
16th Jul 2025537 AMAQI
16th Jul 2025528 AMAQI
16th Jul 2025609 AMAQI
16th Jul 20255610 AMAQI
16th Jul 20255411 AMAQI
16th Jul 20255312 PMAQI
16th Jul 2025521 PMAQI
16th Jul 2025482 PMAQI
16th Jul 2025503 PMAQI
16th Jul 2025504 PMAQI
16th Jul 2025545 PMAQI
16th Jul 2025546 PMAQI
16th Jul 2025547 PMAQI
16th Jul 2025528 PMAQI
16th Jul 2025529 PMAQI
16th Jul 20255110 PMAQI
16th Jul 20255311 PMAQI
17th Jul 20255312 AMAQI
17th Jul 2025551 AMAQI
17th Jul 2025572 AMAQI
17th Jul 2025583 AMAQI
17th Jul 2025574 AMAQI
17th Jul 2025525 AMAQI
27°C26/27°C
17th Jul 2025376 AMAQI
17th Jul 2025507 AMAQI
17th Jul 2025508 AMAQI
17th Jul 2025449 AMAQI
17th Jul 20254710 AMAQI
17th Jul 20255611 AMAQI
17th Jul 20255212 PMAQI
17th Jul 2025501 PMAQI
17th Jul 2025462 PMAQI
17th Jul 2025463 PMAQI
17th Jul 2025474 PMAQI
17th Jul 2025465 PMAQI
17th Jul 2025566 PMAQI
17th Jul 2025537 PMAQI
17th Jul 2025558 PMAQI
17th Jul 2025539 PMAQI
17th Jul 20255610 PMAQI
17th Jul 20255111 PMAQI
18th Jul 20255412 AMAQI
18th Jul 2025531 AMAQI
18th Jul 2025552 AMAQI
18th Jul 2025563 AMAQI
18th Jul 2025544 AMAQI
18th Jul 2025515 AMAQI
27°C26/27°C
18th Jul 2025356 AMAQI
18th Jul 2025837 AMAQI
18th Jul 2025528 AMAQI
18th Jul 2025539 AMAQI
18th Jul 20254910 AMAQI
18th Jul 20255111 AMAQI
18th Jul 20254712 PMAQI
18th Jul 2025511 PMAQI
18th Jul 2025492 PMAQI
18th Jul 2025463 PMAQI
18th Jul 2025484 PMAQI
18th Jul 2025495 PMAQI
18th Jul 2025536 PMAQI
18th Jul 2025547 PMAQI
18th Jul 2025518 PMAQI
18th Jul 2025529 PMAQI
18th Jul 20255110 PMAQI
18th Jul 20255211 PMAQI
19th Jul 20255412 AMAQI
19th Jul 2025541 AMAQI
19th Jul 2025552 AMAQI
19th Jul 2025563 AMAQI
19th Jul 2025554 AMAQI
19th Jul 2025515 AMAQI
27°C26/28°C
19th Jul 2025366 AMAQI
19th Jul 2025427 AMAQI
19th Jul 2025388 AMAQI
19th Jul 2025499 AMAQI
19th Jul 20254610 AMAQI
19th Jul 20254911 AMAQI
19th Jul 20255012 PMAQI
19th Jul 2025461 PMAQI
19th Jul 2025462 PMAQI
19th Jul 2025473 PMAQI
19th Jul 2025464 PMAQI
19th Jul 2025475 PMAQI
19th Jul 2025546 PMAQI
19th Jul 2025567 PMAQI
19th Jul 2025568 PMAQI
19th Jul 2025549 PMAQI
19th Jul 20255410 PMAQI
19th Jul 20255211 PMAQI
20th Jul 20255312 AMAQI
20th Jul 2025541 AMAQI
20th Jul 2025542 AMAQI
20th Jul 2025543 AMAQI
20th Jul 2025544 AMAQI
20th Jul 2025555 AMAQI
27°C26/28°C
20th Jul 2025476 AMAQI
20th Jul 2025427 AMAQI
20th Jul 2025528 AMAQI
20th Jul 2025469 AMAQI
20th Jul 20255710 AMAQI
20th Jul 20255411 AMAQI
20th Jul 20255312 PMAQI
20th Jul 2025581 PMAQI
20th Jul 2025612 PMAQI
20th Jul 2025463 PMAQI
20th Jul 2025524 PMAQI
20th Jul 2025555 PMAQI
20th Jul 2025556 PMAQI
20th Jul 2025547 PMAQI
20th Jul 2025538 PMAQI
20th Jul 2025529 PMAQI
20th Jul 20255210 PMAQI
20th Jul 20255111 PMAQI
21st Jul 20255212 AMAQI
21st Jul 2025541 AMAQI
21st Jul 2025562 AMAQI
21st Jul 2025553 AMAQI
21st Jul 2025544 AMAQI
21st Jul 2025515 AMAQI
26°C26/27°C
21st Jul 2025376 AMAQI
21st Jul 2025447 AMAQI
21st Jul 2025468 AMAQI
21st Jul 2025549 AMAQI
21st Jul 20255910 AMAQI
21st Jul 20255711 AMAQI
21st Jul 20255312 PMAQI
21st Jul 2025451 PMAQI
21st Jul 2025422 PMAQI
21st Jul 2025443 PMAQI
21st Jul 2025504 PMAQI
21st Jul 2025525 PMAQI
21st Jul 2025546 PMAQI
21st Jul 2025507 PMAQI
21st Jul 2025508 PMAQI
21st Jul 2025489 PMAQI
21st Jul 20255210 PMAQI
21st Jul 20255211 PMAQI
22nd Jul 20255012 AMAQI
22nd Jul 2025501 AMAQI
22nd Jul 2025522 AMAQI
22nd Jul 2025533 AMAQI
22nd Jul 2025524 AMAQI
22nd Jul 2025495 AMAQI
26°C26/27°C
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
--°C/°C
6 AM
12 PM
6 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
10 AM - 6 PM
56AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
6 AM
50AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 6 PM (Avg. 56), while the lowest AQI was between 6 AM to 6 AM (Avg. 50).
Night time
Avg. Highest Time
12 AM - 4 AM
58AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
5 AM
56AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 58), while the lowest AQI was between 5 AM to 5 AM (Avg. 56).
2025 Days Vs Air Quality
Colombo US Embassy, Colombo, Western, Sri Lanka
2025
4%
9
85%
184
10%
22
0.4%
1
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
9 DaysModerate
184 DaysPoor
22 DaysUnhealthy
1 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 4%
Health Risk Level:
Extreme
In 2025, 4% of 217 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 US Embassy, 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
75AQI
2nd January 2025
86AQI
86AQI
3rd January 2025
97AQI
97AQI
4th January 2025
95AQI
95AQI
5th January 2025
84AQI
84AQI
6th January 2025
92AQI
92AQI
7th January 2025
99AQI
99AQI
8th January 2025
85AQI
85AQI
9th January 2025
96AQI
96AQI
10th January 2025
87AQI
87AQI
11th January 2025
96AQI
96AQI
12th January 2025
94AQI
94AQI
13th January 2025
110AQI
110AQI
14th January 2025
96AQI
96AQI
15th January 2025
89AQI
89AQI
16th January 2025
80AQI
80AQI
17th January 2025
101AQI
101AQI
18th January 2025
87AQI
87AQI
19th January 2025
78AQI
78AQI
20th January 2025
80AQI
80AQI
21st January 2025
100AQI
100AQI
22nd January 2025
90AQI
90AQI
23rd January 2025
89AQI
89AQI
24th January 2025
91AQI
91AQI
25th January 2025
72AQI
72AQI
26th January 2025
115AQI
115AQI
27th January 2025
90AQI
90AQI
28th January 2025
136AQI
136AQI
29th January 2025
122AQI
122AQI
30th January 2025
108AQI
108AQI
31st January 2025
87AQI
87AQI
1st February 2025
91AQI
91AQI
2nd February 2025
83AQI
83AQI
3rd February 2025
79AQI
79AQI
4th February 2025
83AQI
83AQI
5th February 2025
103AQI
103AQI
6th February 2025
135AQI
135AQI
7th February 2025
107AQI
107AQI
8th February 2025
124AQI
124AQI
9th February 2025
141AQI
141AQI
10th February 2025
168AQI
168AQI
11th February 2025
114AQI
114AQI
12th February 2025
109AQI
109AQI
13th February 2025
95AQI
95AQI
14th February 2025
92AQI
92AQI
15th February 2025
80AQI
80AQI
16th February 2025
78AQI
78AQI
17th February 2025
91AQI
91AQI
18th February 2025
120AQI
120AQI
19th February 2025
110AQI
110AQI
20th February 2025
110AQI
110AQI
21st February 2025
92AQI
92AQI
22nd February 2025
96AQI
96AQI
23rd February 2025
86AQI
86AQI
24th February 2025
81AQI
81AQI
25th February 2025
95AQI
95AQI
26th February 2025
92AQI
92AQI
27th February 2025
80AQI
80AQI
28th February 2025
79AQI
79AQI
1st March 2025
83AQI
83AQI
2nd March 2025
69AQI
69AQI
3rd March 2025
79AQI
79AQI
4th March 2025
108AQI
108AQI
5th March 2025
79AQI
79AQI
6th March 2025
82AQI
82AQI
7th March 2025
86AQI
86AQI
8th March 2025
101AQI
101AQI
9th March 2025
79AQI
79AQI
10th March 2025
94AQI
94AQI
11th March 2025
111AQI
111AQI
12th March 2025
81AQI
81AQI
13th March 2025
88AQI
88AQI
14th March 2025
107AQI
107AQI
15th March 2025
67AQI
67AQI
16th March 2025
89AQI
89AQI
17th March 2025
81AQI
81AQI
18th March 2025
72AQI
72AQI
19th March 2025
92AQI
92AQI
20th March 2025
120AQI
120AQI
21st March 2025
108AQI
108AQI
22nd March 2025
93AQI
93AQI
23rd March 2025
87AQI
87AQI
24th March 2025
74AQI
74AQI
25th March 2025
81AQI
81AQI
26th March 2025
81AQI
81AQI
27th March 2025
82AQI
82AQI
28th March 2025
78AQI
78AQI
29th March 2025
78AQI
78AQI
30th March 2025
74AQI
74AQI
31st March 2025
68AQI
68AQI
1st April 2025
66AQI
66AQI
2nd April 2025
64AQI
64AQI
3rd April 2025
56AQI
56AQI
4th April 2025
57AQI
57AQI
5th April 2025
53AQI
53AQI
6th April 2025
56AQI
56AQI
7th April 2025
56AQI
56AQI
8th April 2025
59AQI
59AQI
9th April 2025
59AQI
59AQI
10th April 2025
65AQI
65AQI
11th April 2025
67AQI
67AQI
12th April 2025
67AQI
67AQI
13th April 2025
72AQI
72AQI
14th April 2025
66AQI
66AQI
15th April 2025
55AQI
55AQI
16th April 2025
60AQI
60AQI
17th April 2025
61AQI
61AQI
18th April 2025
63AQI
63AQI
19th April 2025
68AQI
68AQI
20th April 2025
71AQI
71AQI
21st April 2025
70AQI
70AQI
22nd April 2025
68AQI
68AQI
23rd April 2025
59AQI
59AQI
24th April 2025
62AQI
62AQI
25th April 2025
58AQI
58AQI
26th April 2025
64AQI
64AQI
27th April 2025
57AQI
57AQI
28th April 2025
60AQI
60AQI
29th April 2025
58AQI
58AQI
30th April 2025
55AQI
55AQI
1st May 2025
54AQI
54AQI
2nd May 2025
46AQI
46AQI
3rd May 2025
52AQI
52AQI
4th May 2025
64AQI
64AQI
5th May 2025
70AQI
70AQI
6th May 2025
68AQI
68AQI
7th May 2025
71AQI
71AQI
8th May 2025
79AQI
79AQI
9th May 2025
79AQI
79AQI
10th May 2025
76AQI
76AQI
11th May 2025
70AQI
70AQI
12th May 2025
63AQI
63AQI
13th May 2025
60AQI
60AQI
14th May 2025
64AQI
64AQI
15th May 2025
73AQI
73AQI
16th May 2025
77AQI
77AQI
17th May 2025
76AQI
76AQI
18th May 2025
63AQI
63AQI
19th May 2025
54AQI
54AQI
20th May 2025
60AQI
60AQI
21st May 2025
59AQI
59AQI
22nd May 2025
63AQI
63AQI
23rd May 2025
52AQI
52AQI
24th May 2025
55AQI
55AQI
25th May 2025
52AQI
52AQI
26th May 2025
50AQI
50AQI
27th May 2025
52AQI
52AQI
28th May 2025
56AQI
56AQI
29th May 2025
57AQI
57AQI
30th May 2025
53AQI
53AQI
31st May 2025
55AQI
55AQI
1st June 2025
58AQI
58AQI
2nd June 2025
58AQI
58AQI
3rd June 2025
55AQI
55AQI
4th June 2025
50AQI
50AQI
5th June 2025
63AQI
63AQI
6th June 2025
61AQI
61AQI
7th June 2025
66AQI
66AQI
8th June 2025
61AQI
61AQI
9th June 2025
64AQI
64AQI
10th June 2025
61AQI
61AQI
11th June 2025
64AQI
64AQI
12th June 2025
72AQI
72AQI
13th June 2025
67AQI
67AQI
14th June 2025
64AQI
64AQI
15th June 2025
59AQI
59AQI
16th June 2025
61AQI
61AQI
17th June 2025
59AQI
59AQI
18th June 2025
59AQI
59AQI
19th June 2025
61AQI
61AQI
20th June 2025
58AQI
58AQI
21st June 2025
50AQI
50AQI
22nd June 2025
46AQI
46AQI
23rd June 2025
55AQI
55AQI
24th June 2025
58AQI
58AQI
25th June 2025
58AQI
58AQI
26th June 2025
63AQI
63AQI
27th June 2025
62AQI
62AQI
28th June 2025
58AQI
58AQI
29th June 2025
57AQI
57AQI
30th June 2025
53AQI
53AQI
1st July 2025
56AQI
56AQI
2nd July 2025
58AQI
58AQI
3rd July 2025
56AQI
56AQI
4th July 2025
57AQI
57AQI
5th July 2025
54AQI
54AQI
6th July 2025
54AQI
54AQI
7th July 2025
54AQI
54AQI
8th July 2025
55AQI
55AQI
9th July 2025
57AQI
57AQI
10th July 2025
58AQI
58AQI
11th July 2025
60AQI
60AQI
12th July 2025
58AQI
58AQI
13th July 2025
57AQI
57AQI
14th July 2025
55AQI
55AQI
15th July 2025
50AQI
50AQI
16th July 2025
52AQI
52AQI
17th July 2025
51AQI
51AQI
18th July 2025
52AQI
52AQI
19th July 2025
50AQI
50AQI
20th July 2025
53AQI
53AQI
21st July 2025
51AQI
51AQI
22nd July 2025
48AQI
48AQI
23rd July 2025
49AQI
49AQI
24th July 2025
51AQI
51AQI
25th July 2025
57AQI
57AQI
26th July 2025
56AQI
56AQI
27th July 2025
55AQI
55AQI
28th July 2025
53AQI
53AQI
29th July 2025
55AQI
55AQI
30th July 2025
59AQI
59AQI
31st July 2025
62AQI
62AQI
1st August 2025
69AQI
69AQI
2nd August 2025
73AQI
73AQI
3rd August 2025
71AQI
71AQI
4th August 2025
68AQI
68AQI
94AQI
101AQI
86AQI
62AQI
62AQI
59AQI
55AQI
70AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202574AQI
25
6
17
10
1
25
6
30
2
29
3
27
4
27
4
9
184
22
1
Highest AQI recorded in
February101AQI
Lowest AQI recorded in
July55AQI
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
March96AQI
Lowest AQI recorded in
August36AQI
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
January100AQI
Lowest AQI recorded in
September43AQI
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
December106AQI
Lowest AQI recorded in
June47AQI
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
February96AQI
Lowest AQI recorded in
August35AQI
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
March80AQI
Lowest AQI recorded in
August35AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
74AQILeast Polluted Year Recorded
2020(Avg.)
52AQIColombo US Embassy's annual 2025 AQI (74) shows an average percentage change of 21.9% (worsened AQI) compared to previous years: 2020 (52), 2021 (55), 2022 (73), 2023 (66), 2024 (62).
