San Diego, California, United States 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
San Diego, California, United States
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2025
66AQILowest AQI recorded on
14th Aug 2026
33AQISame Day Analysis (16th August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 48 of Good air quality on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
San Diego, California, United States
AQI
Day
Night
.
6 AM15th Aug 2026
7 PM
5 AM16th Aug 2026
Day time
Avg. Highest Time
3PM15th Aug
51AQI
Avg. Lowest Time
8AM15th Aug
22AQI
Night time
Avg. Highest Time
9PM15th Aug
52AQI
Avg. Lowest Time
4AM16th Aug
33AQI
In the last 24 hours,
San Diego's AQI reached its highest point of 52 at 9 PM during the Night, while the lowest point, 22, was recorded at 8 AM during the Day between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
San Diego, California, United States
JulAug
18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th
Day
Night
18th Jul 2026546 AMAQI
18th Jul 2026547 AMAQI
18th Jul 2026548 AMAQI
18th Jul 2026539 AMAQI
18th Jul 20265410 AMAQI
18th Jul 20265311 AMAQI
18th Jul 20265312 PMAQI
18th Jul 2026531 PMAQI
18th Jul 2026542 PMAQI
18th Jul 2026523 PMAQI
18th Jul 2026494 PMAQI
18th Jul 2026505 PMAQI
18th Jul 2026476 PMAQI
18th Jul 2026457 PMAQI
18th Jul 2026458 PMAQI
18th Jul 2026439 PMAQI
18th Jul 20264010 PMAQI
18th Jul 20264511 PMAQI
19th Jul 20264412 AMAQI
19th Jul 2026441 AMAQI
19th Jul 2026452 AMAQI
19th Jul 2026453 AMAQI
19th Jul 2026484 AMAQI
19th Jul 2026505 AMAQI
23°C19/27°C
19th Jul 2026516 AMAQI
19th Jul 2026517 AMAQI
19th Jul 2026528 AMAQI
19th Jul 2026539 AMAQI
19th Jul 20265310 AMAQI
19th Jul 20265311 AMAQI
19th Jul 20265312 PMAQI
19th Jul 2026521 PMAQI
19th Jul 2026522 PMAQI
19th Jul 2026503 PMAQI
19th Jul 2026504 PMAQI
19th Jul 2026455 PMAQI
19th Jul 2026446 PMAQI
19th Jul 2026447 PMAQI
19th Jul 2026438 PMAQI
19th Jul 2026459 PMAQI
19th Jul 20264410 PMAQI
19th Jul 20264111 PMAQI
20th Jul 20264112 AMAQI
20th Jul 2026431 AMAQI
20th Jul 2026422 AMAQI
20th Jul 2026443 AMAQI
20th Jul 2026444 AMAQI
20th Jul 2026455 AMAQI
24°C20/30°C
20th Jul 2026446 AMAQI
20th Jul 2026457 AMAQI
20th Jul 2026468 AMAQI
20th Jul 2026469 AMAQI
20th Jul 20264910 AMAQI
20th Jul 20265111 AMAQI
20th Jul 20265412 PMAQI
20th Jul 2026531 PMAQI
20th Jul 2026512 PMAQI
20th Jul 2026493 PMAQI
20th Jul 2026494 PMAQI
20th Jul 2026495 PMAQI
20th Jul 2026476 PMAQI
20th Jul 2026497 PMAQI
20th Jul 2026449 PMAQI
20th Jul 20264310 PMAQI
20th Jul 20264111 PMAQI
21st Jul 20264212 AMAQI
21st Jul 2026421 AMAQI
21st Jul 2026402 AMAQI
21st Jul 2026433 AMAQI
21st Jul 2026444 AMAQI
21st Jul 2026455 AMAQI
24°C20/32°C
21st Jul 2026456 AMAQI
21st Jul 2026457 AMAQI
21st Jul 2026458 AMAQI
21st Jul 2026509 AMAQI
21st Jul 20265210 AMAQI
21st Jul 20265211 AMAQI
21st Jul 20265212 PMAQI
21st Jul 2026441 PMAQI
21st Jul 2026412 PMAQI
21st Jul 2026433 PMAQI
21st Jul 2026494 PMAQI
21st Jul 2026315 PMAQI
21st Jul 2026326 PMAQI
21st Jul 2026487 PMAQI
21st Jul 2026448 PMAQI
21st Jul 2026469 PMAQI
21st Jul 20265710 PMAQI
21st Jul 20264711 PMAQI
22nd Jul 20265612 AMAQI
22nd Jul 2026451 AMAQI
22nd Jul 2026482 AMAQI
22nd Jul 2026453 AMAQI
22nd Jul 2026504 AMAQI
22nd Jul 2026505 AMAQI
25°C21/32°C
22nd Jul 2026466 AMAQI
22nd Jul 2026367 AMAQI
22nd Jul 2026488 AMAQI
22nd Jul 2026499 AMAQI
22nd Jul 20264610 AMAQI
22nd Jul 20264611 AMAQI
22nd Jul 20265012 PMAQI
22nd Jul 2026481 PMAQI
22nd Jul 2026462 PMAQI
22nd Jul 2026453 PMAQI
22nd Jul 2026534 PMAQI
22nd Jul 2026325 PMAQI
22nd Jul 2026396 PMAQI
22nd Jul 2026467 PMAQI
22nd Jul 2026468 PMAQI
22nd Jul 2026449 PMAQI
22nd Jul 20264610 PMAQI
22nd Jul 20264911 PMAQI
23rd Jul 20264612 AMAQI
23rd Jul 2026381 AMAQI
23rd Jul 2026482 AMAQI
23rd Jul 2026463 AMAQI
23rd Jul 2026464 AMAQI
23rd Jul 2026425 AMAQI
23°C21/30°C
23rd Jul 2026486 AMAQI
23rd Jul 2026497 AMAQI
23rd Jul 2026448 AMAQI
23rd Jul 2026459 AMAQI
23rd Jul 20264010 AMAQI
23rd Jul 20265111 AMAQI
23rd Jul 20264412 PMAQI
23rd Jul 2026451 PMAQI
23rd Jul 2026442 PMAQI
23rd Jul 2026473 PMAQI
23rd Jul 2026474 PMAQI
23rd Jul 2026475 PMAQI
23rd Jul 2026466 PMAQI
23rd Jul 2026457 PMAQI
23rd Jul 2026468 PMAQI
23rd Jul 2026469 PMAQI
23rd Jul 20264210 PMAQI
23rd Jul 20264311 PMAQI
24th Jul 20264212 AMAQI
24th Jul 2026421 AMAQI
24th Jul 2026442 AMAQI
24th Jul 2026433 AMAQI
24th Jul 2026484 AMAQI
24th Jul 2026485 AMAQI
25°C19/33°C
24th Jul 2026496 AMAQI
24th Jul 2026507 AMAQI
24th Jul 2026488 AMAQI
24th Jul 2026519 AMAQI
24th Jul 20265210 AMAQI
24th Jul 20265211 AMAQI
24th Jul 20265512 PMAQI
24th Jul 2026551 PMAQI
24th Jul 2026552 PMAQI
24th Jul 2026563 PMAQI
24th Jul 2026544 PMAQI
24th Jul 2026535 PMAQI
24th Jul 2026516 PMAQI
24th Jul 2026487 PMAQI
24th Jul 2026468 PMAQI
24th Jul 2026459 PMAQI
24th Jul 20264610 PMAQI
24th Jul 20264711 PMAQI
25th Jul 20264712 AMAQI
25th Jul 2026461 AMAQI
25th Jul 2026472 AMAQI
25th Jul 2026483 AMAQI
25th Jul 2026484 AMAQI
25th Jul 2026515 AMAQI
23°C20/28°C
25th Jul 2026516 AMAQI
25th Jul 2026537 AMAQI
25th Jul 2026558 AMAQI
25th Jul 2026569 AMAQI
25th Jul 20265810 AMAQI
25th Jul 20265911 AMAQI
25th Jul 20265912 PMAQI
25th Jul 2026611 PMAQI
25th Jul 2026572 PMAQI
25th Jul 2026563 PMAQI
25th Jul 2026534 PMAQI
25th Jul 2026515 PMAQI
25th Jul 2026506 PMAQI
25th Jul 2026487 PMAQI
25th Jul 2026498 PMAQI
25th Jul 2026489 PMAQI
25th Jul 20264510 PMAQI
25th Jul 20264711 PMAQI
26th Jul 20264812 AMAQI
26th Jul 2026471 AMAQI
26th Jul 2026492 AMAQI
26th Jul 2026463 AMAQI
26th Jul 2026494 AMAQI
26th Jul 2026495 AMAQI
23°C19/29°C
26th Jul 2026516 AMAQI
26th Jul 2026507 AMAQI
26th Jul 2026528 AMAQI
26th Jul 2026519 AMAQI
26th Jul 20265110 AMAQI
26th Jul 20265111 AMAQI
26th Jul 20265212 PMAQI
26th Jul 2026521 PMAQI
26th Jul 2026532 PMAQI
26th Jul 2026513 PMAQI
26th Jul 2026514 PMAQI
26th Jul 2026505 PMAQI
26th Jul 2026486 PMAQI
26th Jul 2026477 PMAQI
26th Jul 2026478 PMAQI
26th Jul 2026459 PMAQI
26th Jul 20264410 PMAQI
26th Jul 20264511 PMAQI
27th Jul 20264612 AMAQI
27th Jul 2026471 AMAQI
27th Jul 2026472 AMAQI
27th Jul 2026483 AMAQI
27th Jul 2026504 AMAQI
27th Jul 2026525 AMAQI
25°C20/34°C
27th Jul 2026526 AMAQI
27th Jul 2026537 AMAQI
27th Jul 2026538 AMAQI
27th Jul 2026549 AMAQI
27th Jul 20265410 AMAQI
27th Jul 20265511 AMAQI
27th Jul 20265612 PMAQI
27th Jul 2026571 PMAQI
27th Jul 2026562 PMAQI
27th Jul 2026543 PMAQI
27th Jul 2026524 PMAQI
27th Jul 2026515 PMAQI
27th Jul 2026486 PMAQI
27th Jul 2026467 PMAQI
27th Jul 2026448 PMAQI
27th Jul 2026429 PMAQI
27th Jul 20264410 PMAQI
27th Jul 20264411 PMAQI
28th Jul 20264712 AMAQI
28th Jul 2026451 AMAQI
28th Jul 2026472 AMAQI
28th Jul 2026473 AMAQI
28th Jul 2026474 AMAQI
28th Jul 2026495 AMAQI
24°C20/28°C
28th Jul 2026516 AMAQI
28th Jul 2026507 AMAQI
28th Jul 2026538 AMAQI
28th Jul 2026559 AMAQI
28th Jul 20265610 AMAQI
28th Jul 20266111 AMAQI
28th Jul 20265812 PMAQI
28th Jul 2026561 PMAQI
28th Jul 2026532 PMAQI
28th Jul 2026513 PMAQI
28th Jul 2026494 PMAQI
28th Jul 2026465 PMAQI
28th Jul 2026476 PMAQI
28th Jul 2026457 PMAQI
28th Jul 2026458 PMAQI
28th Jul 2026459 PMAQI
28th Jul 20264610 PMAQI
28th Jul 20264711 PMAQI
29th Jul 20264712 AMAQI
29th Jul 2026491 AMAQI
29th Jul 2026512 AMAQI
29th Jul 2026493 AMAQI
29th Jul 2026524 AMAQI
29th Jul 2026545 AMAQI
22°C20/28°C
29th Jul 2026546 AMAQI
29th Jul 2026557 AMAQI
29th Jul 2026568 AMAQI
29th Jul 2026559 AMAQI
29th Jul 20265610 AMAQI
29th Jul 20265811 AMAQI
29th Jul 20265712 PMAQI
29th Jul 2026561 PMAQI
29th Jul 2026552 PMAQI
29th Jul 2026553 PMAQI
29th Jul 2026514 PMAQI
29th Jul 2026495 PMAQI
29th Jul 2026456 PMAQI
29th Jul 2026467 PMAQI
29th Jul 2026458 PMAQI
29th Jul 2026439 PMAQI
29th Jul 20264310 PMAQI
29th Jul 20264411 PMAQI
30th Jul 20264312 AMAQI
30th Jul 2026451 AMAQI
30th Jul 2026462 AMAQI
30th Jul 2026483 AMAQI
30th Jul 2026494 AMAQI
30th Jul 2026485 AMAQI
22°C19/28°C
30th Jul 2026486 AMAQI
30th Jul 2026467 AMAQI
30th Jul 2026508 AMAQI
30th Jul 2026509 AMAQI
30th Jul 20265210 AMAQI
30th Jul 20265211 AMAQI
30th Jul 20265312 PMAQI
30th Jul 2026541 PMAQI
30th Jul 2026532 PMAQI
30th Jul 2026523 PMAQI
30th Jul 2026494 PMAQI
30th Jul 2026485 PMAQI
30th Jul 2026446 PMAQI
30th Jul 2026437 PMAQI
30th Jul 2026428 PMAQI
30th Jul 2026419 PMAQI
30th Jul 20264010 PMAQI
30th Jul 20264011 PMAQI
31st Jul 20264012 AMAQI
31st Jul 2026401 AMAQI
31st Jul 2026392 AMAQI
31st Jul 2026403 AMAQI
31st Jul 2026424 AMAQI
31st Jul 2026405 AMAQI
23°C19/31°C
31st Jul 2026426 AMAQI
31st Jul 2026437 AMAQI
31st Jul 2026478 AMAQI
31st Jul 2026499 AMAQI
31st Jul 20264810 AMAQI
31st Jul 20264911 AMAQI
31st Jul 20265212 PMAQI
31st Jul 2026521 PMAQI
31st Jul 2026512 PMAQI
31st Jul 2026503 PMAQI
31st Jul 2026504 PMAQI
31st Jul 2026475 PMAQI
31st Jul 2026476 PMAQI
31st Jul 2026467 PMAQI
31st Jul 2026468 PMAQI
31st Jul 2026469 PMAQI
31st Jul 20264710 PMAQI
31st Jul 20264711 PMAQI
1st Aug 20264912 AMAQI
1st Aug 2026481 AMAQI
1st Aug 2026492 AMAQI
1st Aug 2026513 AMAQI
1st Aug 2026524 AMAQI
1st Aug 2026515 AMAQI
23°C17/29°C
1st Aug 2026516 AMAQI
1st Aug 2026527 AMAQI
1st Aug 2026518 AMAQI
1st Aug 2026539 AMAQI
1st Aug 20265510 AMAQI
1st Aug 20265611 AMAQI
1st Aug 20265612 PMAQI
1st Aug 2026541 PMAQI
1st Aug 2026532 PMAQI
1st Aug 2026523 PMAQI
1st Aug 2026514 PMAQI
1st Aug 2026505 PMAQI
1st Aug 2026496 PMAQI
1st Aug 2026487 PMAQI
1st Aug 2026488 PMAQI
1st Aug 2026499 PMAQI
1st Aug 20264710 PMAQI
1st Aug 20264811 PMAQI
2nd Aug 20264812 AMAQI
2nd Aug 2026491 AMAQI
2nd Aug 2026502 AMAQI
2nd Aug 2026513 AMAQI
2nd Aug 2026524 AMAQI
2nd Aug 2026535 AMAQI
24°C19/31°C
2nd Aug 2026566 AMAQI
2nd Aug 2026567 AMAQI
2nd Aug 2026568 AMAQI
2nd Aug 2026559 AMAQI
2nd Aug 20265510 AMAQI
2nd Aug 20265711 AMAQI
2nd Aug 20265712 PMAQI
2nd Aug 2026591 PMAQI
2nd Aug 2026592 PMAQI
2nd Aug 2026563 PMAQI
2nd Aug 2026544 PMAQI
2nd Aug 2026525 PMAQI
2nd Aug 2026526 PMAQI
2nd Aug 2026517 PMAQI
2nd Aug 2026488 PMAQI
2nd Aug 2026499 PMAQI
2nd Aug 20264710 PMAQI
2nd Aug 20264611 PMAQI
3rd Aug 20264512 AMAQI
3rd Aug 2026461 AMAQI
3rd Aug 2026462 AMAQI
3rd Aug 2026473 AMAQI
3rd Aug 2026474 AMAQI
3rd Aug 2026465 AMAQI
23°C20/28°C
3rd Aug 2026486 AMAQI
3rd Aug 2026497 AMAQI
3rd Aug 2026518 AMAQI
3rd Aug 2026519 AMAQI
3rd Aug 20265410 AMAQI
3rd Aug 20265611 AMAQI
3rd Aug 20265612 PMAQI
3rd Aug 2026561 PMAQI
3rd Aug 2026542 PMAQI
3rd Aug 2026523 PMAQI
3rd Aug 2026514 PMAQI
3rd Aug 2026515 PMAQI
3rd Aug 2026516 PMAQI
3rd Aug 2026497 PMAQI
3rd Aug 2026508 PMAQI
3rd Aug 2026499 PMAQI
3rd Aug 20264810 PMAQI
3rd Aug 20265011 PMAQI
4th Aug 20264812 AMAQI
4th Aug 2026491 AMAQI
4th Aug 2026502 AMAQI
4th Aug 2026513 AMAQI
4th Aug 2026524 AMAQI
4th Aug 2026545 AMAQI
23°C20/29°C
4th Aug 2026556 AMAQI
4th Aug 2026547 AMAQI
4th Aug 2026568 AMAQI
4th Aug 2026579 AMAQI
4th Aug 20266010 AMAQI
4th Aug 20266111 AMAQI
4th Aug 20266212 PMAQI
4th Aug 2026611 PMAQI
4th Aug 2026582 PMAQI
4th Aug 2026553 PMAQI
4th Aug 2026534 PMAQI
4th Aug 2026525 PMAQI
4th Aug 2026506 PMAQI
4th Aug 2026497 PMAQI
4th Aug 2026478 PMAQI
4th Aug 2026469 PMAQI
4th Aug 20264410 PMAQI
4th Aug 20264511 PMAQI
5th Aug 20264512 AMAQI
5th Aug 2026451 AMAQI
5th Aug 2026452 AMAQI
5th Aug 2026433 AMAQI
5th Aug 2026454 AMAQI
5th Aug 2026465 AMAQI
23°C20/32°C
5th Aug 2026466 AMAQI
5th Aug 2026507 AMAQI
5th Aug 2026508 AMAQI
5th Aug 2026529 AMAQI
5th Aug 20265510 AMAQI
5th Aug 20265811 AMAQI
5th Aug 20265812 PMAQI
5th Aug 2026581 PMAQI
5th Aug 2026562 PMAQI
5th Aug 2026533 PMAQI
5th Aug 2026524 PMAQI
5th Aug 2026505 PMAQI
5th Aug 2026476 PMAQI
5th Aug 2026457 PMAQI
5th Aug 2026438 PMAQI
5th Aug 2026429 PMAQI
5th Aug 20264310 PMAQI
5th Aug 20264211 PMAQI
6th Aug 20264312 AMAQI
6th Aug 2026411 AMAQI
6th Aug 2026412 AMAQI
6th Aug 2026423 AMAQI
6th Aug 2026414 AMAQI
6th Aug 2026425 AMAQI
23°C20/31°C
6th Aug 2026426 AMAQI
6th Aug 2026427 AMAQI
6th Aug 2026448 AMAQI
6th Aug 2026439 AMAQI
6th Aug 20264510 AMAQI
6th Aug 20264811 AMAQI
6th Aug 20265012 PMAQI
6th Aug 2026511 PMAQI
6th Aug 2026502 PMAQI
6th Aug 2026513 PMAQI
6th Aug 2026494 PMAQI
6th Aug 2026465 PMAQI
6th Aug 2026456 PMAQI
6th Aug 2026457 PMAQI
6th Aug 2026428 PMAQI
6th Aug 2026439 PMAQI
6th Aug 20265210 PMAQI
6th Aug 20265111 PMAQI
7th Aug 20264112 AMAQI
7th Aug 2026451 AMAQI
7th Aug 2026412 AMAQI
7th Aug 2026413 AMAQI
7th Aug 2026434 AMAQI
7th Aug 2026405 AMAQI
24°C19/33°C
7th Aug 2026406 AMAQI
7th Aug 2026407 AMAQI
7th Aug 2026418 AMAQI
7th Aug 2026419 AMAQI
7th Aug 20264310 AMAQI
7th Aug 20264411 AMAQI
7th Aug 20264612 PMAQI
7th Aug 2026441 PMAQI
7th Aug 2026462 PMAQI
7th Aug 2026443 PMAQI
7th Aug 2026424 PMAQI
7th Aug 2026505 PMAQI
7th Aug 2026496 PMAQI
7th Aug 2026467 PMAQI
7th Aug 2026458 PMAQI
7th Aug 2026439 PMAQI
7th Aug 20264510 PMAQI
7th Aug 20264411 PMAQI
8th Aug 20264512 AMAQI
8th Aug 2026401 AMAQI
8th Aug 2026442 AMAQI
8th Aug 2026413 AMAQI
8th Aug 2026454 AMAQI
8th Aug 2026435 AMAQI
25°C20/32°C
8th Aug 2026466 AMAQI
8th Aug 2026447 AMAQI
8th Aug 2026488 AMAQI
8th Aug 2026469 AMAQI
8th Aug 20264610 AMAQI
8th Aug 20264411 AMAQI
8th Aug 20264712 PMAQI
8th Aug 2026461 PMAQI
8th Aug 2026452 PMAQI
8th Aug 2026433 PMAQI
8th Aug 2026434 PMAQI
8th Aug 2026435 PMAQI
8th Aug 2026476 PMAQI
8th Aug 2026487 PMAQI
8th Aug 2026488 PMAQI
8th Aug 2026459 PMAQI
8th Aug 20264510 PMAQI
8th Aug 20264311 PMAQI
9th Aug 20264312 AMAQI
9th Aug 2026441 AMAQI
9th Aug 2026422 AMAQI
9th Aug 2026433 AMAQI
9th Aug 2026434 AMAQI
9th Aug 2026445 AMAQI
25°C19/32°C
9th Aug 2026466 AMAQI
9th Aug 2026467 AMAQI
9th Aug 2026498 AMAQI
9th Aug 2026519 AMAQI
9th Aug 20265110 AMAQI
9th Aug 20265211 AMAQI
9th Aug 20265312 PMAQI
9th Aug 2026521 PMAQI
9th Aug 2026512 PMAQI
9th Aug 2026513 PMAQI
9th Aug 2026504 PMAQI
9th Aug 2026495 PMAQI
9th Aug 2026486 PMAQI
9th Aug 2026477 PMAQI
9th Aug 2026478 PMAQI
9th Aug 2026469 PMAQI
9th Aug 20264710 PMAQI
9th Aug 20264611 PMAQI
10th Aug 20264512 AMAQI
10th Aug 2026461 AMAQI
10th Aug 2026482 AMAQI
10th Aug 2026473 AMAQI
10th Aug 2026504 AMAQI
10th Aug 2026505 AMAQI
25°C20/33°C
10th Aug 2026506 AMAQI
10th Aug 2026517 AMAQI
10th Aug 2026518 AMAQI
10th Aug 2026529 AMAQI
10th Aug 20265510 AMAQI
10th Aug 20265711 AMAQI
10th Aug 20265512 PMAQI
10th Aug 2026551 PMAQI
10th Aug 2026522 PMAQI
10th Aug 2026513 PMAQI
10th Aug 2026494 PMAQI
10th Aug 2026455 PMAQI
10th Aug 2026446 PMAQI
10th Aug 2026497 PMAQI
10th Aug 2026438 PMAQI
10th Aug 2026409 PMAQI
10th Aug 20262410 PMAQI
10th Aug 20264511 PMAQI
11th Aug 20264412 AMAQI
11th Aug 2026281 AMAQI
11th Aug 2026382 AMAQI
11th Aug 2026383 AMAQI
11th Aug 2026464 AMAQI
11th Aug 2026405 AMAQI
24°C20/30°C
11th Aug 2026466 AMAQI
11th Aug 2026487 AMAQI
11th Aug 2026428 AMAQI
11th Aug 2026469 AMAQI
11th Aug 20266110 AMAQI
11th Aug 20265211 AMAQI
11th Aug 20265612 PMAQI
11th Aug 2026531 PMAQI
11th Aug 2026502 PMAQI
11th Aug 2026493 PMAQI
11th Aug 2026444 PMAQI
11th Aug 2026425 PMAQI
11th Aug 2026356 PMAQI
11th Aug 2026397 PMAQI
11th Aug 2026318 PMAQI
11th Aug 2026429 PMAQI
11th Aug 20264010 PMAQI
11th Aug 20263411 PMAQI
12th Aug 20263812 AMAQI
12th Aug 2026421 AMAQI
12th Aug 2026342 AMAQI
12th Aug 2026363 AMAQI
12th Aug 2026444 AMAQI
12th Aug 2026365 AMAQI
24°C20/31°C
12th Aug 2026346 AMAQI
12th Aug 2026427 AMAQI
12th Aug 2026328 AMAQI
12th Aug 2026389 AMAQI
12th Aug 20265010 AMAQI
12th Aug 20264811 AMAQI
12th Aug 20265112 PMAQI
12th Aug 2026541 PMAQI
12th Aug 2026502 PMAQI
12th Aug 2026233 PMAQI
12th Aug 2026364 PMAQI
12th Aug 2026285 PMAQI
12th Aug 2026546 PMAQI
12th Aug 2026507 PMAQI
12th Aug 2026418 PMAQI
12th Aug 2026399 PMAQI
12th Aug 20263810 PMAQI
12th Aug 20265211 PMAQI
13th Aug 20263712 AMAQI
13th Aug 2026461 AMAQI
13th Aug 2026432 AMAQI
13th Aug 2026333 AMAQI
13th Aug 2026424 AMAQI
13th Aug 2026425 AMAQI
24°C21/30°C
13th Aug 2026396 AMAQI
13th Aug 2026407 AMAQI
13th Aug 2026408 AMAQI
13th Aug 2026499 AMAQI
13th Aug 20263710 AMAQI
13th Aug 20264511 AMAQI
13th Aug 20264012 PMAQI
13th Aug 2026361 PMAQI
13th Aug 2026362 PMAQI
13th Aug 2026393 PMAQI
13th Aug 2026374 PMAQI
13th Aug 2026365 PMAQI
13th Aug 2026356 PMAQI
13th Aug 2026407 PMAQI
13th Aug 2026428 PMAQI
13th Aug 2026329 PMAQI
13th Aug 20264310 PMAQI
13th Aug 20261111 PMAQI
14th Aug 20261212 AMAQI
14th Aug 2026161 AMAQI
14th Aug 2026232 AMAQI
14th Aug 2026233 AMAQI
14th Aug 2026254 AMAQI
14th Aug 2026365 AMAQI
22°C20/28°C
14th Aug 2026406 AMAQI
14th Aug 2026367 AMAQI
14th Aug 2026368 AMAQI
14th Aug 2026239 AMAQI
14th Aug 20263410 AMAQI
14th Aug 20263011 AMAQI
14th Aug 20263912 PMAQI
14th Aug 2026461 PMAQI
14th Aug 2026502 PMAQI
14th Aug 2026413 PMAQI
14th Aug 2026384 PMAQI
14th Aug 2026415 PMAQI
14th Aug 2026136 PMAQI
14th Aug 2026427 PMAQI
14th Aug 2026128 PMAQI
14th Aug 2026449 PMAQI
14th Aug 20264210 PMAQI
14th Aug 20264911 PMAQI
15th Aug 20262012 AMAQI
15th Aug 2026211 AMAQI
15th Aug 2026272 AMAQI
15th Aug 2026343 AMAQI
15th Aug 2026444 AMAQI
15th Aug 2026325 AMAQI
22°C18/27°C
15th Aug 2026386 AMAQI
15th Aug 2026297 AMAQI
15th Aug 2026228 AMAQI
15th Aug 2026429 AMAQI
15th Aug 20263910 AMAQI
15th Aug 20264811 AMAQI
15th Aug 20264612 PMAQI
15th Aug 2026461 PMAQI
15th Aug 2026502 PMAQI
15th Aug 2026513 PMAQI
15th Aug 2026424 PMAQI
15th Aug 2026405 PMAQI
15th Aug 2026466 PMAQI
15th Aug 2026477 PMAQI
15th Aug 2026478 PMAQI
15th Aug 2026529 PMAQI
15th Aug 20265010 PMAQI
15th Aug 20263911 PMAQI
16th Aug 20263912 AMAQI
16th Aug 2026411 AMAQI
16th Aug 2026382 AMAQI
16th Aug 2026423 AMAQI
16th Aug 2026334 AMAQI
16th Aug 2026375 AMAQI
22°C20/25°C
16th Aug 2026426 AMAQI
6 AM16th Aug 2026327 AMAQI
16th Aug 2026348 AMAQI
16th Aug 2026399 AMAQI
16th Aug 20264210 AMAQI
16th Aug 20263211 AMAQI
16th Aug 20263112 PMAQI
12 PM16th Aug 2026381 PMAQI
16th Aug 2026332 PMAQI
16th Aug 2026463 PMAQI
16th Aug 2026444 PMAQI
16th Aug 2026615 PMAQI
16th Aug 2026696 PMAQI
16th Aug 20261027 PMAQI
7 PM16th Aug 2026868 PMAQI
16th Aug 2026709 PMAQI
16th Aug 20266710 PMAQI
16th Aug 20266111 PMAQI
12 AM
5 AM
23°C21/27°C
Day time
Avg. Highest Time
9 AM - 1 PM
51AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
6 AM - 8 AM
47AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 1 PM (Avg. 51), while the lowest AQI was between 6 AM to 8 AM (Avg. 47).
Night time
Avg. Highest Time
4 AM - 11 PM
45AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
12 AM - 3 AM
44AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 11 PM (Avg. 45), while the lowest AQI was between 12 AM to 3 AM (Avg. 44).
2026 Days Vs Air Quality
San Diego, California, United States
2026
93%
210
7%
15
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Good
210 DaysModerate
15 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% of 228 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
San Diego, California, United States
AQI levels in 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
24AQI (US)
24AQI (US)
2nd January 2026
20AQI (US)
20AQI (US)
3rd January 2026
16AQI (US)
16AQI (US)
4th January 2026
13AQI (US)
13AQI (US)
5th January 2026
21AQI (US)
21AQI (US)
6th January 2026
30AQI (US)
30AQI (US)
7th January 2026
31AQI (US)
31AQI (US)
8th January 2026
33AQI (US)
33AQI (US)
9th January 2026
23AQI (US)
23AQI (US)
10th January 2026
25AQI (US)
25AQI (US)
11th January 2026
29AQI (US)
29AQI (US)
12th January 2026
29AQI (US)
29AQI (US)
13th January 2026
30AQI (US)
30AQI (US)
14th January 2026
40AQI (US)
40AQI (US)
15th January 2026
36AQI (US)
36AQI (US)
16th January 2026
42AQI (US)
42AQI (US)
17th January 2026
35AQI (US)
35AQI (US)
18th January 2026
32AQI (US)
32AQI (US)
19th January 2026
42AQI (US)
42AQI (US)
20th January 2026
52AQI (US)
52AQI (US)
21st January 2026
71AQI (US)
71AQI (US)
22nd January 2026
49AQI (US)
49AQI (US)
23rd January 2026
37AQI (US)
37AQI (US)
24th January 2026
25AQI (US)
25AQI (US)
25th January 2026
31AQI (US)
31AQI (US)
26th January 2026
31AQI (US)
31AQI (US)
27th January 2026
24AQI (US)
24AQI (US)
28th January 2026
36AQI (US)
36AQI (US)
29th January 2026
41AQI (US)
41AQI (US)
30th January 2026
48AQI (US)
48AQI (US)
31st January 2026
32AQI (US)
32AQI (US)
1st February 2026
42AQI (US)
42AQI (US)
2nd February 2026
43AQI (US)
43AQI (US)
3rd February 2026
44AQI (US)
44AQI (US)
4th February 2026
38AQI (US)
38AQI (US)
5th February 2026
42AQI (US)
42AQI (US)
6th February 2026
42AQI (US)
42AQI (US)
7th February 2026
36AQI (US)
36AQI (US)
8th February 2026
34AQI (US)
34AQI (US)
9th February 2026
38AQI (US)
38AQI (US)
10th February 2026
42AQI (US)
42AQI (US)
11th February 2026
23AQI (US)
23AQI (US)
12th February 2026
22AQI (US)
22AQI (US)
13th February 2026
31AQI (US)
31AQI (US)
14th February 2026
39AQI (US)
39AQI (US)
15th February 2026
38AQI (US)
38AQI (US)
16th February 2026
38AQI (US)
38AQI (US)
17th February 2026
27AQI (US)
27AQI (US)
18th February 2026
29AQI (US)
29AQI (US)
19th February 2026
26AQI (US)
26AQI (US)
20th February 2026
22AQI (US)
22AQI (US)
21st February 2026
22AQI (US)
22AQI (US)
22nd February 2026
27AQI (US)
27AQI (US)
23rd February 2026
32AQI (US)
32AQI (US)
24th February 2026
36AQI (US)
36AQI (US)
25th February 2026
34AQI (US)
34AQI (US)
26th February 2026
32AQI (US)
32AQI (US)
27th February 2026
31AQI (US)
31AQI (US)
28th February 2026
31AQI (US)
31AQI (US)
1st March 2026
30AQI (US)
30AQI (US)
2nd March 2026
43AQI (US)
43AQI (US)
3rd March 2026
29AQI (US)
29AQI (US)
4th March 2026
31AQI (US)
31AQI (US)
5th March 2026
26AQI (US)
26AQI (US)
6th March 2026
28AQI (US)
28AQI (US)
7th March 2026
26AQI (US)
26AQI (US)
8th March 2026
28AQI (US)
28AQI (US)
9th March 2026
22AQI (US)
22AQI (US)
10th March 2026
24AQI (US)
24AQI (US)
11th March 2026
31AQI (US)
31AQI (US)
12th March 2026
36AQI (US)
36AQI (US)
13th March 2026
37AQI (US)
37AQI (US)
14th March 2026
33AQI (US)
33AQI (US)
15th March 2026
28AQI (US)
28AQI (US)
16th March 2026
35AQI (US)
35AQI (US)
17th March 2026
35AQI (US)
35AQI (US)
18th March 2026
36AQI (US)
36AQI (US)
19th March 2026
38AQI (US)
38AQI (US)
20th March 2026
43AQI (US)
43AQI (US)
21st March 2026
32AQI (US)
32AQI (US)
22nd March 2026
28AQI (US)
28AQI (US)
23rd March 2026
37AQI (US)
37AQI (US)
24th March 2026
41AQI (US)
41AQI (US)
25th March 2026
28AQI (US)
28AQI (US)
26th March 2026
28AQI (US)
28AQI (US)
27th March 2026
31AQI (US)
31AQI (US)
28th March 2026
30AQI (US)
30AQI (US)
29th March 2026
28AQI (US)
28AQI (US)
30th March 2026
34AQI (US)
34AQI (US)
31st March 2026
28AQI (US)
28AQI (US)
1st April 2026
24AQI (US)
24AQI (US)
2nd April 2026
15AQI (US)
15AQI (US)
3rd April 2026
21AQI (US)
21AQI (US)
4th April 2026
31AQI (US)
31AQI (US)
5th April 2026
30AQI (US)
30AQI (US)
6th April 2026
36AQI (US)
36AQI (US)
7th April 2026
33AQI (US)
33AQI (US)
8th April 2026
37AQI (US)
37AQI (US)
9th April 2026
35AQI (US)
35AQI (US)
10th April 2026
28AQI (US)
28AQI (US)
11th April 2026
26AQI (US)
26AQI (US)
12th April 2026
23AQI (US)
23AQI (US)
13th April 2026
19AQI (US)
19AQI (US)
14th April 2026
19AQI (US)
19AQI (US)
15th April 2026
31AQI (US)
31AQI (US)
16th April 2026
23AQI (US)
23AQI (US)
17th April 2026
18th April 2026
33AQI (US)
33AQI (US)
19th April 2026
31AQI (US)
31AQI (US)
20th April 2026
27AQI (US)
27AQI (US)
21st April 2026
19AQI (US)
19AQI (US)
22nd April 2026
23rd April 2026
20AQI (US)
20AQI (US)
24th April 2026
23AQI (US)
23AQI (US)
25th April 2026
24AQI (US)
24AQI (US)
26th April 2026
28AQI (US)
28AQI (US)
27th April 2026
15AQI (US)
15AQI (US)
28th April 2026
20AQI (US)
20AQI (US)
29th April 2026
25AQI (US)
25AQI (US)
30th April 2026
28AQI (US)
28AQI (US)
1st May 2026
39AQI (US)
39AQI (US)
2nd May 2026
32AQI (US)
32AQI (US)
3rd May 2026
23AQI (US)
23AQI (US)
4th May 2026
26AQI (US)
26AQI (US)
5th May 2026
29AQI (US)
29AQI (US)
6th May 2026
28AQI (US)
28AQI (US)
7th May 2026
34AQI (US)
34AQI (US)
8th May 2026
40AQI (US)
40AQI (US)
9th May 2026
10th May 2026
35AQI (US)
35AQI (US)
11th May 2026
38AQI (US)
38AQI (US)
12th May 2026
33AQI (US)
33AQI (US)
13th May 2026
32AQI (US)
32AQI (US)
14th May 2026
28AQI (US)
28AQI (US)
15th May 2026
47AQI (US)
47AQI (US)
16th May 2026
48AQI (US)
48AQI (US)
17th May 2026
61AQI (US)
61AQI (US)
18th May 2026
57AQI (US)
57AQI (US)
19th May 2026
56AQI (US)
56AQI (US)
20th May 2026
59AQI (US)
59AQI (US)
21st May 2026
48AQI (US)
48AQI (US)
22nd May 2026
56AQI (US)
56AQI (US)
23rd May 2026
49AQI (US)
49AQI (US)
24th May 2026
44AQI (US)
44AQI (US)
25th May 2026
39AQI (US)
39AQI (US)
26th May 2026
23AQI (US)
23AQI (US)
27th May 2026
14AQI (US)
14AQI (US)
28th May 2026
15AQI (US)
15AQI (US)
29th May 2026
19AQI (US)
19AQI (US)
30th May 2026
18AQI (US)
18AQI (US)
31st May 2026
22AQI (US)
22AQI (US)
1st June 2026
31AQI (US)
31AQI (US)
2nd June 2026
40AQI (US)
40AQI (US)
3rd June 2026
41AQI (US)
41AQI (US)
4th June 2026
41AQI (US)
41AQI (US)
5th June 2026
32AQI (US)
32AQI (US)
6th June 2026
25AQI (US)
25AQI (US)
7th June 2026
32AQI (US)
32AQI (US)
8th June 2026
33AQI (US)
33AQI (US)
9th June 2026
27AQI (US)
27AQI (US)
10th June 2026
27AQI (US)
27AQI (US)
11th June 2026
28AQI (US)
28AQI (US)
12th June 2026
20AQI (US)
20AQI (US)
13th June 2026
15AQI (US)
15AQI (US)
14th June 2026
18AQI (US)
18AQI (US)
15th June 2026
22AQI (US)
22AQI (US)
16th June 2026
23AQI (US)
23AQI (US)
17th June 2026
24AQI (US)
24AQI (US)
18th June 2026
20AQI (US)
20AQI (US)
19th June 2026
24AQI (US)
24AQI (US)
20th June 2026
19AQI (US)
19AQI (US)
21st June 2026
27AQI (US)
27AQI (US)
22nd June 2026
22AQI (US)
22AQI (US)
23rd June 2026
33AQI (US)
33AQI (US)
24th June 2026
26AQI (US)
26AQI (US)
25th June 2026
21AQI (US)
21AQI (US)
26th June 2026
23AQI (US)
23AQI (US)
27th June 2026
22AQI (US)
22AQI (US)
28th June 2026
16AQI (US)
16AQI (US)
29th June 2026
22AQI (US)
22AQI (US)
30th June 2026
27AQI (US)
27AQI (US)
1st July 2026
21AQI (US)
21AQI (US)
2nd July 2026
35AQI (US)
35AQI (US)
3rd July 2026
23AQI (US)
23AQI (US)
4th July 2026
24AQI (US)
24AQI (US)
5th July 2026
38AQI (US)
38AQI (US)
6th July 2026
25AQI (US)
25AQI (US)
7th July 2026
56AQI (US)
56AQI (US)
8th July 2026
29AQI (US)
29AQI (US)
9th July 2026
34AQI (US)
34AQI (US)
10th July 2026
33AQI (US)
33AQI (US)
11th July 2026
31AQI (US)
31AQI (US)
12th July 2026
26AQI (US)
26AQI (US)
13th July 2026
34AQI (US)
34AQI (US)
14th July 2026
33AQI (US)
33AQI (US)
15th July 2026
31AQI (US)
31AQI (US)
16th July 2026
33AQI (US)
33AQI (US)
17th July 2026
53AQI (US)
53AQI (US)
18th July 2026
51AQI (US)
51AQI (US)
19th July 2026
48AQI (US)
48AQI (US)
20th July 2026
46AQI (US)
46AQI (US)
21st July 2026
45AQI (US)
45AQI (US)
22nd July 2026
46AQI (US)
46AQI (US)
23rd July 2026
45AQI (US)
45AQI (US)
24th July 2026
49AQI (US)
49AQI (US)
25th July 2026
52AQI (US)
52AQI (US)
26th July 2026
49AQI (US)
49AQI (US)
27th July 2026
50AQI (US)
50AQI (US)
28th July 2026
50AQI (US)
50AQI (US)
29th July 2026
51AQI (US)
51AQI (US)
30th July 2026
47AQI (US)
47AQI (US)
31st July 2026
46AQI (US)
46AQI (US)
1st August 2026
51AQI (US)
51AQI (US)
2nd August 2026
53AQI (US)
53AQI (US)
3rd August 2026
50AQI (US)
50AQI (US)
4th August 2026
53AQI (US)
53AQI (US)
5th August 2026
49AQI (US)
49AQI (US)
6th August 2026
45AQI (US)
45AQI (US)
7th August 2026
44AQI (US)
44AQI (US)
8th August 2026
45AQI (US)
45AQI (US)
9th August 2026
47AQI (US)
47AQI (US)
10th August 2026
48AQI (US)
48AQI (US)
11th August 2026
43AQI (US)
43AQI (US)
12th August 2026
41AQI (US)
41AQI (US)
13th August 2026
38AQI (US)
38AQI (US)
14th August 2026
33AQI (US)
33AQI (US)
15th August 2026
40AQI (US)
40AQI (US)
16th August 2026
48AQI (US)
48AQI (US)
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
33AQI (US)
34AQI (US)
32AQI (US)
26AQI (US)
36AQI (US)
26AQI (US)
40AQI (US)
46AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202633AQI (US)
29
2
28
31
28
25
5
30
26
5
13
3
210
15
Highest AQI (US) recorded in
August46AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202548AQI (US)
6
21
9
18
13
13
17
24
7
9
22
25
5
12
19
15
15
12
19
155
126
Highest AQI (US) recorded in
December58AQI (US)
Lowest AQI (US) recorded in
March33AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Most Polluted Year Recorded
2025(Avg.)
48AQI (US)Least Polluted Year Recorded
2026(Avg.)
33AQI (US)San Diego's annual 2026 AQI (US) (33) shows an average percentage change of -31.2% (improved AQI (US)) compared to previous years: 2025 (48).
