San Francisco, 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 Francisco, California, United States
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
14th Aug 2024
196AQILowest AQI recorded on
14th Aug 2023
12AQISame Day Analysis (14th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 44 of Good air quality, showing improvement over 2024 on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
San Francisco, California, United States
AQI
Day
Night
.
6 AM14th Aug 2026
8 PM
5 AM15th Aug 2026
Day time
Avg. Highest Time
7PM14th Aug
58AQI
Avg. Lowest Time
9AM14th Aug
24AQI
Night time
Avg. Highest Time
3AM15th Aug
52AQI
Avg. Lowest Time
4AM15th Aug
42AQI
In the last 24 hours,
San Francisco's AQI reached its highest point of 58 at 7 PM during the Day, while the lowest point, 24, was recorded at 9 AM during the Day between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
San Francisco, California, United States
JulAug
17th - 18th18th - 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
Day
Night
17th Jul 2026456 AMAQI
17th Jul 2026427 AMAQI
17th Jul 2026428 AMAQI
17th Jul 2026429 AMAQI
17th Jul 20264310 AMAQI
17th Jul 20264211 AMAQI
17th Jul 20264612 PMAQI
17th Jul 2026491 PMAQI
17th Jul 2026412 PMAQI
17th Jul 2026483 PMAQI
17th Jul 2026474 PMAQI
17th Jul 2026485 PMAQI
17th Jul 2026426 PMAQI
17th Jul 2026467 PMAQI
17th Jul 2026448 PMAQI
17th Jul 2026429 PMAQI
17th Jul 20264110 PMAQI
17th Jul 20264611 PMAQI
18th Jul 20263612 AMAQI
18th Jul 2026501 AMAQI
18th Jul 2026492 AMAQI
18th Jul 2026383 AMAQI
18th Jul 2026484 AMAQI
18th Jul 2026445 AMAQI
15°C12/22°C
18th Jul 2026426 AMAQI
18th Jul 2026437 AMAQI
18th Jul 2026478 AMAQI
18th Jul 2026549 AMAQI
18th Jul 20265810 AMAQI
18th Jul 20265411 AMAQI
18th Jul 20266912 PMAQI
18th Jul 2026801 PMAQI
18th Jul 2026742 PMAQI
18th Jul 2026603 PMAQI
18th Jul 2026564 PMAQI
18th Jul 2026505 PMAQI
18th Jul 2026446 PMAQI
18th Jul 2026477 PMAQI
18th Jul 2026508 PMAQI
18th Jul 2026529 PMAQI
18th Jul 20264110 PMAQI
18th Jul 20265211 PMAQI
19th Jul 20264612 AMAQI
19th Jul 2026471 AMAQI
19th Jul 2026502 AMAQI
19th Jul 2026463 AMAQI
19th Jul 2026424 AMAQI
19th Jul 2026495 AMAQI
14°C12/17°C
19th Jul 2026376 AMAQI
19th Jul 2026427 AMAQI
19th Jul 2026438 AMAQI
19th Jul 2026429 AMAQI
19th Jul 20264310 AMAQI
19th Jul 20264311 AMAQI
19th Jul 20264512 PMAQI
19th Jul 2026431 PMAQI
19th Jul 2026432 PMAQI
19th Jul 2026333 PMAQI
19th Jul 2026524 PMAQI
19th Jul 2026405 PMAQI
19th Jul 2026346 PMAQI
19th Jul 2026607 PMAQI
19th Jul 2026568 PMAQI
19th Jul 2026489 PMAQI
19th Jul 20264610 PMAQI
19th Jul 20264111 PMAQI
20th Jul 20264612 AMAQI
20th Jul 2026461 AMAQI
20th Jul 2026462 AMAQI
20th Jul 2026423 AMAQI
20th Jul 2026424 AMAQI
20th Jul 2026565 AMAQI
15°C12/19°C
20th Jul 2026546 AMAQI
20th Jul 2026487 AMAQI
20th Jul 2026468 AMAQI
20th Jul 2026429 AMAQI
20th Jul 20264010 AMAQI
20th Jul 20265011 AMAQI
20th Jul 20265812 PMAQI
20th Jul 2026571 PMAQI
20th Jul 2026502 PMAQI
20th Jul 2026423 PMAQI
20th Jul 2026464 PMAQI
20th Jul 2026405 PMAQI
20th Jul 2026606 PMAQI
20th Jul 2026427 PMAQI
20th Jul 2026489 PMAQI
20th Jul 20264610 PMAQI
20th Jul 20261811 PMAQI
21st Jul 20261812 AMAQI
21st Jul 2026461 AMAQI
21st Jul 2026462 AMAQI
21st Jul 2026523 AMAQI
21st Jul 2026184 AMAQI
21st Jul 2026215 AMAQI
15°C13/19°C
21st Jul 2026426 AMAQI
21st Jul 2026447 AMAQI
21st Jul 2026468 AMAQI
21st Jul 2026549 AMAQI
21st Jul 20265610 AMAQI
21st Jul 20264411 AMAQI
21st Jul 20264212 PMAQI
21st Jul 2026471 PMAQI
21st Jul 2026452 PMAQI
21st Jul 2026483 PMAQI
21st Jul 2026504 PMAQI
21st Jul 2026425 PMAQI
21st Jul 2026466 PMAQI
21st Jul 2026427 PMAQI
21st Jul 2026488 PMAQI
21st Jul 2026629 PMAQI
21st Jul 20266910 PMAQI
21st Jul 20266111 PMAQI
22nd Jul 20265312 AMAQI
22nd Jul 2026451 AMAQI
22nd Jul 2026462 AMAQI
22nd Jul 2026503 AMAQI
22nd Jul 2026464 AMAQI
22nd Jul 2026225 AMAQI
21°C14/29°C
22nd Jul 2026426 AMAQI
22nd Jul 2026487 AMAQI
22nd Jul 2026468 AMAQI
22nd Jul 2026469 AMAQI
22nd Jul 20264610 AMAQI
22nd Jul 20265011 AMAQI
22nd Jul 20265212 PMAQI
22nd Jul 2026521 PMAQI
22nd Jul 2026352 PMAQI
22nd Jul 2026493 PMAQI
22nd Jul 2026594 PMAQI
22nd Jul 2026415 PMAQI
22nd Jul 2026306 PMAQI
22nd Jul 2026707 PMAQI
22nd Jul 2026548 PMAQI
22nd Jul 2026529 PMAQI
22nd Jul 20265010 PMAQI
22nd Jul 20262011 PMAQI
23rd Jul 20262012 AMAQI
23rd Jul 2026231 AMAQI
23rd Jul 2026202 AMAQI
23rd Jul 2026423 AMAQI
23rd Jul 2026204 AMAQI
23rd Jul 2026245 AMAQI
18°C15/21°C
23rd Jul 2026226 AMAQI
23rd Jul 2026237 AMAQI
23rd Jul 2026498 AMAQI
23rd Jul 2026569 AMAQI
23rd Jul 20265210 AMAQI
23rd Jul 20262111 AMAQI
23rd Jul 20261912 PMAQI
23rd Jul 2026461 PMAQI
23rd Jul 2026732 PMAQI
23rd Jul 2026583 PMAQI
23rd Jul 2026634 PMAQI
23rd Jul 2026305 PMAQI
23rd Jul 2026506 PMAQI
23rd Jul 2026747 PMAQI
23rd Jul 2026698 PMAQI
23rd Jul 2026549 PMAQI
23rd Jul 20265210 PMAQI
23rd Jul 20265011 PMAQI
24th Jul 20263912 AMAQI
24th Jul 2026521 AMAQI
24th Jul 2026602 AMAQI
24th Jul 2026533 AMAQI
24th Jul 2026474 AMAQI
24th Jul 2026665 AMAQI
17°C14/22°C
24th Jul 2026486 AMAQI
24th Jul 2026437 AMAQI
24th Jul 2026748 AMAQI
24th Jul 2026649 AMAQI
24th Jul 20265410 AMAQI
24th Jul 20266011 AMAQI
24th Jul 20265612 PMAQI
24th Jul 2026381 PMAQI
24th Jul 2026522 PMAQI
24th Jul 2026513 PMAQI
24th Jul 2026504 PMAQI
24th Jul 2026475 PMAQI
24th Jul 2026416 PMAQI
24th Jul 2026527 PMAQI
24th Jul 2026528 PMAQI
24th Jul 2026549 PMAQI
24th Jul 20265010 PMAQI
24th Jul 20265011 PMAQI
25th Jul 20264612 AMAQI
25th Jul 2026521 AMAQI
25th Jul 2026462 AMAQI
25th Jul 2026483 AMAQI
25th Jul 2026464 AMAQI
25th Jul 2026505 AMAQI
17°C13/23°C
25th Jul 2026426 AMAQI
25th Jul 2026187 AMAQI
25th Jul 2026468 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20264810 AMAQI
25th Jul 20264811 AMAQI
25th Jul 20263712 PMAQI
25th Jul 2026451 PMAQI
25th Jul 2026422 PMAQI
25th Jul 2026413 PMAQI
25th Jul 2026424 PMAQI
25th Jul 2026445 PMAQI
25th Jul 2026246 PMAQI
25th Jul 2026467 PMAQI
25th Jul 2026528 PMAQI
25th Jul 2026549 PMAQI
25th Jul 20264610 PMAQI
25th Jul 20264611 PMAQI
26th Jul 20264912 AMAQI
26th Jul 2026461 AMAQI
26th Jul 2026462 AMAQI
26th Jul 2026513 AMAQI
26th Jul 2026394 AMAQI
26th Jul 2026485 AMAQI
18°C14/24°C
26th Jul 2026466 AMAQI
26th Jul 2026507 AMAQI
26th Jul 2026468 AMAQI
26th Jul 2026209 AMAQI
26th Jul 20264210 AMAQI
26th Jul 20264611 AMAQI
26th Jul 20265012 PMAQI
26th Jul 2026401 PMAQI
26th Jul 2026412 PMAQI
26th Jul 2026503 PMAQI
26th Jul 2026504 PMAQI
26th Jul 2026275 PMAQI
26th Jul 2026366 PMAQI
26th Jul 2026607 PMAQI
26th Jul 2026568 PMAQI
26th Jul 2026569 PMAQI
26th Jul 20265410 PMAQI
26th Jul 20265611 PMAQI
27th Jul 20265712 AMAQI
27th Jul 2026501 AMAQI
27th Jul 2026472 AMAQI
27th Jul 2026503 AMAQI
27th Jul 2026384 AMAQI
27th Jul 2026465 AMAQI
17°C13/22°C
27th Jul 2026226 AMAQI
27th Jul 2026437 AMAQI
27th Jul 2026468 AMAQI
27th Jul 2026469 AMAQI
27th Jul 20265010 AMAQI
27th Jul 20266211 AMAQI
27th Jul 20265412 PMAQI
27th Jul 2026571 PMAQI
27th Jul 2026462 PMAQI
27th Jul 2026523 PMAQI
27th Jul 2026544 PMAQI
27th Jul 2026335 PMAQI
27th Jul 2026326 PMAQI
27th Jul 2026437 PMAQI
27th Jul 2026288 PMAQI
27th Jul 2026399 PMAQI
27th Jul 20263510 PMAQI
27th Jul 20263611 PMAQI
28th Jul 20264812 AMAQI
28th Jul 2026461 AMAQI
28th Jul 2026462 AMAQI
28th Jul 2026463 AMAQI
28th Jul 2026334 AMAQI
28th Jul 2026425 AMAQI
17°C13/22°C
28th Jul 2026386 AMAQI
28th Jul 2026527 AMAQI
28th Jul 2026448 AMAQI
28th Jul 2026469 AMAQI
28th Jul 20265510 AMAQI
28th Jul 20265811 AMAQI
28th Jul 20265112 PMAQI
28th Jul 2026451 PMAQI
28th Jul 2026432 PMAQI
28th Jul 2026423 PMAQI
28th Jul 2026434 PMAQI
28th Jul 2026445 PMAQI
28th Jul 2026456 PMAQI
28th Jul 2026527 PMAQI
28th Jul 2026518 PMAQI
28th Jul 2026469 PMAQI
28th Jul 20264510 PMAQI
28th Jul 20265011 PMAQI
29th Jul 20264612 AMAQI
29th Jul 2026481 AMAQI
29th Jul 2026462 AMAQI
29th Jul 2026463 AMAQI
29th Jul 2026464 AMAQI
29th Jul 2026505 AMAQI
18°C13/26°C
29th Jul 2026446 AMAQI
29th Jul 2026507 AMAQI
29th Jul 2026528 AMAQI
29th Jul 2026529 AMAQI
29th Jul 20264110 AMAQI
29th Jul 20263711 AMAQI
29th Jul 20265112 PMAQI
29th Jul 2026541 PMAQI
29th Jul 2026482 PMAQI
29th Jul 2026493 PMAQI
29th Jul 2026294 PMAQI
29th Jul 2026505 PMAQI
29th Jul 2026466 PMAQI
29th Jul 2026507 PMAQI
29th Jul 2026328 PMAQI
29th Jul 2026429 PMAQI
29th Jul 20264210 PMAQI
29th Jul 20264411 PMAQI
30th Jul 20265012 AMAQI
30th Jul 2026501 AMAQI
30th Jul 2026492 AMAQI
30th Jul 2026433 AMAQI
30th Jul 2026454 AMAQI
30th Jul 2026445 AMAQI
18°C14/26°C
30th Jul 2026406 AMAQI
30th Jul 2026407 AMAQI
30th Jul 2026438 AMAQI
30th Jul 2026449 AMAQI
30th Jul 20264610 AMAQI
30th Jul 20264211 AMAQI
30th Jul 20264512 PMAQI
30th Jul 2026441 PMAQI
30th Jul 2026452 PMAQI
30th Jul 2026423 PMAQI
30th Jul 2026474 PMAQI
30th Jul 2026525 PMAQI
30th Jul 2026476 PMAQI
30th Jul 2026427 PMAQI
30th Jul 2026418 PMAQI
30th Jul 2026419 PMAQI
30th Jul 20264010 PMAQI
30th Jul 20264611 PMAQI
31st Jul 20264212 AMAQI
31st Jul 2026411 AMAQI
31st Jul 2026442 AMAQI
31st Jul 2026453 AMAQI
31st Jul 2026434 AMAQI
31st Jul 2026465 AMAQI
17°C13/24°C
31st Jul 2026556 AMAQI
31st Jul 2026307 AMAQI
31st Jul 2026538 AMAQI
31st Jul 2026469 AMAQI
31st Jul 20264510 AMAQI
31st Jul 20264211 AMAQI
31st Jul 20264912 PMAQI
31st Jul 2026521 PMAQI
31st Jul 2026562 PMAQI
31st Jul 2026613 PMAQI
31st Jul 2026564 PMAQI
31st Jul 2026565 PMAQI
31st Jul 2026506 PMAQI
31st Jul 2026527 PMAQI
31st Jul 2026478 PMAQI
31st Jul 2026489 PMAQI
31st Jul 20264610 PMAQI
31st Jul 20265011 PMAQI
1st Aug 20264812 AMAQI
1st Aug 2026461 AMAQI
1st Aug 2026422 AMAQI
1st Aug 2026463 AMAQI
1st Aug 2026494 AMAQI
1st Aug 2026445 AMAQI
17°C13/25°C
1st Aug 2026526 AMAQI
1st Aug 2026497 AMAQI
1st Aug 2026468 AMAQI
1st Aug 2026529 AMAQI
1st Aug 20264610 AMAQI
1st Aug 20264211 AMAQI
1st Aug 20264212 PMAQI
1st Aug 2026511 PMAQI
1st Aug 2026482 PMAQI
1st Aug 2026433 PMAQI
1st Aug 2026444 PMAQI
1st Aug 2026475 PMAQI
1st Aug 2026466 PMAQI
1st Aug 2026467 PMAQI
1st Aug 2026428 PMAQI
1st Aug 2026449 PMAQI
1st Aug 20264710 PMAQI
1st Aug 20264711 PMAQI
2nd Aug 20264312 AMAQI
2nd Aug 2026411 AMAQI
2nd Aug 2026402 AMAQI
2nd Aug 2026463 AMAQI
2nd Aug 2026504 AMAQI
2nd Aug 2026455 AMAQI
19°C13/28°C
2nd Aug 2026476 AMAQI
2nd Aug 2026387 AMAQI
2nd Aug 2026418 AMAQI
2nd Aug 2026449 AMAQI
2nd Aug 20264810 AMAQI
2nd Aug 20265211 AMAQI
2nd Aug 20265412 PMAQI
2nd Aug 2026541 PMAQI
2nd Aug 2026522 PMAQI
2nd Aug 2026523 PMAQI
2nd Aug 2026514 PMAQI
2nd Aug 2026505 PMAQI
2nd Aug 2026506 PMAQI
2nd Aug 2026487 PMAQI
2nd Aug 2026528 PMAQI
2nd Aug 2026529 PMAQI
2nd Aug 20265410 PMAQI
2nd Aug 20265611 PMAQI
3rd Aug 20265612 AMAQI
3rd Aug 2026541 AMAQI
3rd Aug 2026582 AMAQI
3rd Aug 2026563 AMAQI
3rd Aug 2026534 AMAQI
3rd Aug 2026535 AMAQI
20°C12/29°C
3rd Aug 2026556 AMAQI
3rd Aug 2026537 AMAQI
3rd Aug 2026568 AMAQI
3rd Aug 2026589 AMAQI
3rd Aug 20265810 AMAQI
3rd Aug 20266211 AMAQI
3rd Aug 20266412 PMAQI
3rd Aug 2026661 PMAQI
3rd Aug 2026672 PMAQI
3rd Aug 2026623 PMAQI
3rd Aug 2026664 PMAQI
3rd Aug 2026605 PMAQI
3rd Aug 2026586 PMAQI
3rd Aug 2026527 PMAQI
3rd Aug 2026548 PMAQI
3rd Aug 2026549 PMAQI
3rd Aug 20265610 PMAQI
3rd Aug 20265411 PMAQI
4th Aug 20264912 AMAQI
4th Aug 2026531 AMAQI
4th Aug 2026502 AMAQI
4th Aug 2026483 AMAQI
4th Aug 2026434 AMAQI
4th Aug 2026435 AMAQI
18°C12/26°C
4th Aug 2026496 AMAQI
4th Aug 2026517 AMAQI
4th Aug 2026488 AMAQI
4th Aug 2026469 AMAQI
4th Aug 20264810 AMAQI
4th Aug 20264511 AMAQI
4th Aug 20264612 PMAQI
4th Aug 2026521 PMAQI
4th Aug 2026482 PMAQI
4th Aug 2026453 PMAQI
4th Aug 2026464 PMAQI
4th Aug 2026455 PMAQI
4th Aug 2026426 PMAQI
4th Aug 2026467 PMAQI
4th Aug 2026528 PMAQI
4th Aug 2026509 PMAQI
4th Aug 20264210 PMAQI
4th Aug 20264811 PMAQI
5th Aug 20264812 AMAQI
5th Aug 2026481 AMAQI
5th Aug 2026472 AMAQI
5th Aug 2026463 AMAQI
5th Aug 2026434 AMAQI
5th Aug 2026435 AMAQI
16°C13/23°C
5th Aug 2026426 AMAQI
5th Aug 2026437 AMAQI
5th Aug 2026428 AMAQI
5th Aug 2026459 AMAQI
5th Aug 20264510 AMAQI
5th Aug 20264411 AMAQI
5th Aug 20264812 PMAQI
5th Aug 2026481 PMAQI
5th Aug 2026482 PMAQI
5th Aug 2026473 PMAQI
5th Aug 2026444 PMAQI
5th Aug 2026485 PMAQI
5th Aug 2026506 PMAQI
5th Aug 2026417 PMAQI
5th Aug 2026458 PMAQI
5th Aug 2026419 PMAQI
5th Aug 20264710 PMAQI
5th Aug 20265011 PMAQI
6th Aug 20264412 AMAQI
6th Aug 2026441 AMAQI
6th Aug 2026432 AMAQI
6th Aug 2026433 AMAQI
6th Aug 2026424 AMAQI
6th Aug 2026495 AMAQI
16°C13/20°C
6th Aug 2026466 AMAQI
6th Aug 2026427 AMAQI
6th Aug 2026418 AMAQI
6th Aug 2026489 AMAQI
6th Aug 20264810 AMAQI
6th Aug 20264711 AMAQI
6th Aug 20265612 PMAQI
6th Aug 2026601 PMAQI
6th Aug 2026582 PMAQI
6th Aug 2026563 PMAQI
6th Aug 2026544 PMAQI
6th Aug 2026455 PMAQI
6th Aug 2026466 PMAQI
6th Aug 2026517 PMAQI
6th Aug 2026458 PMAQI
6th Aug 2026479 PMAQI
6th Aug 20264610 PMAQI
6th Aug 20264111 PMAQI
7th Aug 20264612 AMAQI
7th Aug 2026441 AMAQI
7th Aug 2026422 AMAQI
7th Aug 2026453 AMAQI
7th Aug 2026464 AMAQI
7th Aug 2026465 AMAQI
16°C14/21°C
7th Aug 2026506 AMAQI
7th Aug 2026467 AMAQI
7th Aug 2026468 AMAQI
7th Aug 2026409 AMAQI
7th Aug 20264210 AMAQI
7th Aug 20264111 AMAQI
7th Aug 20264812 PMAQI
7th Aug 2026501 PMAQI
7th Aug 2026522 PMAQI
7th Aug 2026553 PMAQI
7th Aug 2026574 PMAQI
7th Aug 2026515 PMAQI
7th Aug 2026506 PMAQI
7th Aug 2026447 PMAQI
7th Aug 2026508 PMAQI
7th Aug 2026509 PMAQI
7th Aug 20264110 PMAQI
7th Aug 20264611 PMAQI
8th Aug 20264612 AMAQI
8th Aug 2026441 AMAQI
8th Aug 2026432 AMAQI
8th Aug 2026413 AMAQI
8th Aug 2026434 AMAQI
8th Aug 2026455 AMAQI
15°C13/20°C
8th Aug 2026456 AMAQI
8th Aug 2026537 AMAQI
8th Aug 2026508 AMAQI
8th Aug 2026419 AMAQI
8th Aug 20265410 AMAQI
8th Aug 20265711 AMAQI
8th Aug 20265712 PMAQI
8th Aug 2026531 PMAQI
8th Aug 2026532 PMAQI
8th Aug 2026523 PMAQI
8th Aug 2026524 PMAQI
8th Aug 2026525 PMAQI
8th Aug 2026476 PMAQI
8th Aug 2026477 PMAQI
8th Aug 2026478 PMAQI
8th Aug 2026479 PMAQI
8th Aug 20265010 PMAQI
8th Aug 20264811 PMAQI
9th Aug 20264812 AMAQI
9th Aug 2026441 AMAQI
9th Aug 2026462 AMAQI
9th Aug 2026423 AMAQI
9th Aug 2026464 AMAQI
9th Aug 2026495 AMAQI
15°C13/20°C
9th Aug 2026496 AMAQI
9th Aug 2026507 AMAQI
9th Aug 2026488 AMAQI
9th Aug 2026439 AMAQI
9th Aug 20264310 AMAQI
9th Aug 20264811 AMAQI
9th Aug 20264812 PMAQI
9th Aug 2026511 PMAQI
9th Aug 2026502 PMAQI
9th Aug 2026503 PMAQI
9th Aug 2026534 PMAQI
9th Aug 2026515 PMAQI
9th Aug 2026526 PMAQI
9th Aug 2026437 PMAQI
9th Aug 2026488 PMAQI
9th Aug 2026469 PMAQI
9th Aug 20264510 PMAQI
9th Aug 20264611 PMAQI
10th Aug 20264312 AMAQI
10th Aug 2026451 AMAQI
10th Aug 2026452 AMAQI
10th Aug 2026493 AMAQI
10th Aug 2026454 AMAQI
10th Aug 2026455 AMAQI
17°C13/24°C
10th Aug 2026456 AMAQI
10th Aug 2026457 AMAQI
10th Aug 2026468 AMAQI
10th Aug 2026509 AMAQI
10th Aug 20264910 AMAQI
10th Aug 20264811 AMAQI
10th Aug 20264812 PMAQI
10th Aug 2026451 PMAQI
10th Aug 2026472 PMAQI
10th Aug 2026493 PMAQI
10th Aug 2026434 PMAQI
10th Aug 2026445 PMAQI
10th Aug 2026496 PMAQI
10th Aug 2026497 PMAQI
10th Aug 2026478 PMAQI
10th Aug 2026489 PMAQI
10th Aug 20265210 PMAQI
10th Aug 20265011 PMAQI
11th Aug 20264612 AMAQI
11th Aug 2026461 AMAQI
11th Aug 2026482 AMAQI
11th Aug 2026473 AMAQI
11th Aug 2026474 AMAQI
11th Aug 2026505 AMAQI
15°C13/19°C
11th Aug 2026466 AMAQI
11th Aug 2026447 AMAQI
11th Aug 2026418 AMAQI
11th Aug 2026459 AMAQI
11th Aug 20264710 AMAQI
11th Aug 20264311 AMAQI
11th Aug 20264612 PMAQI
11th Aug 2026501 PMAQI
11th Aug 2026502 PMAQI
11th Aug 2026503 PMAQI
11th Aug 2026564 PMAQI
11th Aug 2026585 PMAQI
11th Aug 2026546 PMAQI
11th Aug 2026497 PMAQI
11th Aug 2026468 PMAQI
11th Aug 2026459 PMAQI
11th Aug 20264810 PMAQI
11th Aug 20262711 PMAQI
12th Aug 20265012 AMAQI
12th Aug 2026381 AMAQI
12th Aug 2026342 AMAQI
12th Aug 2026283 AMAQI
12th Aug 2026464 AMAQI
12th Aug 2026465 AMAQI
15°C13/19°C
12th Aug 2026406 AMAQI
12th Aug 2026497 AMAQI
12th Aug 2026488 AMAQI
12th Aug 2026469 AMAQI
12th Aug 20264410 AMAQI
12th Aug 20264911 AMAQI
12th Aug 20265912 PMAQI
12th Aug 2026581 PMAQI
12th Aug 2026522 PMAQI
12th Aug 2026543 PMAQI
12th Aug 2026524 PMAQI
12th Aug 2026485 PMAQI
12th Aug 2026466 PMAQI
12th Aug 2026477 PMAQI
12th Aug 2026398 PMAQI
12th Aug 2026459 PMAQI
12th Aug 20265010 PMAQI
12th Aug 20265011 PMAQI
13th Aug 20265012 AMAQI
13th Aug 2026521 AMAQI
13th Aug 2026562 AMAQI
13th Aug 2026363 AMAQI
13th Aug 2026474 AMAQI
13th Aug 2026525 AMAQI
16°C13/21°C
13th Aug 2026526 AMAQI
13th Aug 2026527 AMAQI
13th Aug 2026528 AMAQI
13th Aug 2026519 AMAQI
13th Aug 20265310 AMAQI
13th Aug 20265011 AMAQI
13th Aug 20265212 PMAQI
13th Aug 2026561 PMAQI
13th Aug 2026602 PMAQI
13th Aug 2026583 PMAQI
13th Aug 2026564 PMAQI
13th Aug 2026505 PMAQI
13th Aug 2026326 PMAQI
13th Aug 2026567 PMAQI
13th Aug 2026558 PMAQI
13th Aug 2026599 PMAQI
13th Aug 20266010 PMAQI
13th Aug 20266211 PMAQI
14th Aug 20265712 AMAQI
14th Aug 2026491 AMAQI
14th Aug 2026462 AMAQI
14th Aug 2026463 AMAQI
14th Aug 2026544 AMAQI
14th Aug 2026515 AMAQI
15°C13/17°C
14th Aug 2026426 AMAQI
14th Aug 2026267 AMAQI
14th Aug 2026328 AMAQI
14th Aug 2026249 AMAQI
14th Aug 20262810 AMAQI
14th Aug 20263411 AMAQI
14th Aug 20264212 PMAQI
14th Aug 2026441 PMAQI
14th Aug 2026492 PMAQI
14th Aug 2026463 PMAQI
14th Aug 2026424 PMAQI
14th Aug 2026465 PMAQI
14th Aug 2026466 PMAQI
14th Aug 2026587 PMAQI
14th Aug 2026468 PMAQI
14th Aug 2026509 PMAQI
14th Aug 20265010 PMAQI
14th Aug 20265011 PMAQI
15th Aug 20264612 AMAQI
15th Aug 2026501 AMAQI
15th Aug 2026462 AMAQI
15th Aug 2026523 AMAQI
15th Aug 2026424 AMAQI
15th Aug 2026525 AMAQI
16°C14/18°C
15th Aug 2026466 AMAQI
6 AM15th Aug 2026227 AMAQI
15th Aug 2026268 AMAQI
15th Aug 2026289 AMAQI
15th Aug 20262610 AMAQI
15th Aug 20262411 AMAQI
15th Aug 20262212 PMAQI
15th Aug 2026241 PMAQI
1 PM15th Aug 2026522 PMAQI
15th Aug 2026503 PMAQI
15th Aug 2026484 PMAQI
15th Aug 2026465 PMAQI
15th Aug 2026466 PMAQI
8 PM
1 AM
5 AM
16°C14/18°C
Day time
Avg. Highest Time
12 PM - 4 PM
50AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
6 AM - 7 AM
44AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 4 PM (Avg. 50), while the lowest AQI was between 6 AM to 7 AM (Avg. 44).
Night time
Avg. Highest Time
9 PM - 10 PM
49AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
4 AM
43AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 10 PM (Avg. 49), while the lowest AQI was between 4 AM to 4 AM (Avg. 43).
2026 Days Vs Air Quality
San Francisco, California, United States
2026
88%
196
12%
27
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Good
196 DaysModerate
27 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2026, 88% of 227 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
San Francisco, 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
29AQI (US)
29AQI (US)
2nd January 2026
22AQI (US)
22AQI (US)
3rd January 2026
24AQI (US)
24AQI (US)
4th January 2026
26AQI (US)
26AQI (US)
5th January 2026
26AQI (US)
26AQI (US)
6th January 2026
28AQI (US)
28AQI (US)
7th January 2026
34AQI (US)
34AQI (US)
8th January 2026
28AQI (US)
28AQI (US)
9th January 2026
30AQI (US)
30AQI (US)
10th January 2026
51AQI (US)
51AQI (US)
11th January 2026
51AQI (US)
51AQI (US)
12th January 2026
51AQI (US)
51AQI (US)
13th January 2026
56AQI (US)
56AQI (US)
14th January 2026
61AQI (US)
61AQI (US)
15th January 2026
86AQI (US)
86AQI (US)
16th January 2026
65AQI (US)
65AQI (US)
17th January 2026
66AQI (US)
66AQI (US)
18th January 2026
72AQI (US)
72AQI (US)
19th January 2026
64AQI (US)
64AQI (US)
20th January 2026
53AQI (US)
53AQI (US)
21st January 2026
60AQI (US)
60AQI (US)
22nd January 2026
48AQI (US)
48AQI (US)
23rd January 2026
51AQI (US)
51AQI (US)
24th January 2026
46AQI (US)
46AQI (US)
25th January 2026
44AQI (US)
44AQI (US)
26th January 2026
46AQI (US)
46AQI (US)
27th January 2026
43AQI (US)
43AQI (US)
28th January 2026
49AQI (US)
49AQI (US)
29th January 2026
54AQI (US)
54AQI (US)
30th January 2026
52AQI (US)
52AQI (US)
31st January 2026
40AQI (US)
40AQI (US)
1st February 2026
45AQI (US)
45AQI (US)
2nd February 2026
48AQI (US)
48AQI (US)
3rd February 2026
48AQI (US)
48AQI (US)
4th February 2026
46AQI (US)
46AQI (US)
5th February 2026
46AQI (US)
46AQI (US)
6th February 2026
42AQI (US)
42AQI (US)
7th February 2026
36AQI (US)
36AQI (US)
8th February 2026
46AQI (US)
46AQI (US)
9th February 2026
48AQI (US)
48AQI (US)
10th February 2026
47AQI (US)
47AQI (US)
11th February 2026
46AQI (US)
46AQI (US)
12th February 2026
48AQI (US)
48AQI (US)
13th February 2026
52AQI (US)
52AQI (US)
14th February 2026
52AQI (US)
52AQI (US)
15th February 2026
42AQI (US)
42AQI (US)
16th February 2026
46AQI (US)
46AQI (US)
17th February 2026
52AQI (US)
52AQI (US)
18th February 2026
44AQI (US)
44AQI (US)
19th February 2026
44AQI (US)
44AQI (US)
20th February 2026
42AQI (US)
42AQI (US)
21st February 2026
36AQI (US)
36AQI (US)
22nd February 2026
36AQI (US)
36AQI (US)
23rd February 2026
40AQI (US)
40AQI (US)
24th February 2026
44AQI (US)
44AQI (US)
25th February 2026
42AQI (US)
42AQI (US)
26th February 2026
36AQI (US)
36AQI (US)
27th February 2026
33AQI (US)
33AQI (US)
28th February 2026
34AQI (US)
34AQI (US)
1st March 2026
40AQI (US)
40AQI (US)
2nd March 2026
52AQI (US)
52AQI (US)
3rd March 2026
44AQI (US)
44AQI (US)
4th March 2026
44AQI (US)
44AQI (US)
5th March 2026
38AQI (US)
38AQI (US)
6th March 2026
36AQI (US)
36AQI (US)
7th March 2026
36AQI (US)
36AQI (US)
8th March 2026
35AQI (US)
35AQI (US)
9th March 2026
35AQI (US)
35AQI (US)
10th March 2026
32AQI (US)
32AQI (US)
11th March 2026
36AQI (US)
36AQI (US)
12th March 2026
37AQI (US)
37AQI (US)
13th March 2026
37AQI (US)
37AQI (US)
14th March 2026
33AQI (US)
33AQI (US)
15th March 2026
34AQI (US)
34AQI (US)
16th March 2026
35AQI (US)
35AQI (US)
17th March 2026
33AQI (US)
33AQI (US)
18th March 2026
32AQI (US)
32AQI (US)
19th March 2026
32AQI (US)
32AQI (US)
20th March 2026
35AQI (US)
35AQI (US)
21st March 2026
32AQI (US)
32AQI (US)
22nd March 2026
32AQI (US)
32AQI (US)
23rd March 2026
37AQI (US)
37AQI (US)
24th March 2026
38AQI (US)
38AQI (US)
25th March 2026
32AQI (US)
32AQI (US)
26th March 2026
33AQI (US)
33AQI (US)
27th March 2026
33AQI (US)
33AQI (US)
28th March 2026
32AQI (US)
32AQI (US)
29th March 2026
28AQI (US)
28AQI (US)
30th March 2026
26AQI (US)
26AQI (US)
31st March 2026
26AQI (US)
26AQI (US)
1st April 2026
34AQI (US)
34AQI (US)
2nd April 2026
34AQI (US)
34AQI (US)
3rd April 2026
28AQI (US)
28AQI (US)
4th April 2026
27AQI (US)
27AQI (US)
5th April 2026
26AQI (US)
26AQI (US)
6th April 2026
30AQI (US)
30AQI (US)
7th April 2026
28AQI (US)
28AQI (US)
8th April 2026
38AQI (US)
38AQI (US)
9th April 2026
29AQI (US)
29AQI (US)
10th April 2026
34AQI (US)
34AQI (US)
11th April 2026
36AQI (US)
36AQI (US)
12th April 2026
30AQI (US)
30AQI (US)
13th April 2026
35AQI (US)
35AQI (US)
14th April 2026
36AQI (US)
36AQI (US)
15th April 2026
32AQI (US)
32AQI (US)
16th April 2026
32AQI (US)
32AQI (US)
17th April 2026
18th April 2026
32AQI (US)
32AQI (US)
19th April 2026
32AQI (US)
32AQI (US)
20th April 2026
30AQI (US)
30AQI (US)
21st April 2026
30AQI (US)
30AQI (US)
22nd April 2026
23rd April 2026
27AQI (US)
27AQI (US)
24th April 2026
28AQI (US)
28AQI (US)
25th April 2026
30AQI (US)
30AQI (US)
26th April 2026
33AQI (US)
33AQI (US)
27th April 2026
28AQI (US)
28AQI (US)
28th April 2026
25AQI (US)
25AQI (US)
29th April 2026
24AQI (US)
24AQI (US)
30th April 2026
26AQI (US)
26AQI (US)
1st May 2026
27AQI (US)
27AQI (US)
2nd May 2026
24AQI (US)
24AQI (US)
3rd May 2026
22AQI (US)
22AQI (US)
4th May 2026
30AQI (US)
30AQI (US)
5th May 2026
35AQI (US)
35AQI (US)
6th May 2026
33AQI (US)
33AQI (US)
7th May 2026
30AQI (US)
30AQI (US)
8th May 2026
29AQI (US)
29AQI (US)
9th May 2026
10th May 2026
33AQI (US)
33AQI (US)
11th May 2026
34AQI (US)
34AQI (US)
12th May 2026
33AQI (US)
33AQI (US)
13th May 2026
30AQI (US)
30AQI (US)
14th May 2026
28AQI (US)
28AQI (US)
15th May 2026
43AQI (US)
43AQI (US)
16th May 2026
51AQI (US)
51AQI (US)
17th May 2026
58AQI (US)
58AQI (US)
18th May 2026
51AQI (US)
51AQI (US)
19th May 2026
52AQI (US)
52AQI (US)
20th May 2026
44AQI (US)
44AQI (US)
21st May 2026
38AQI (US)
38AQI (US)
22nd May 2026
48AQI (US)
48AQI (US)
23rd May 2026
48AQI (US)
48AQI (US)
24th May 2026
40AQI (US)
40AQI (US)
25th May 2026
42AQI (US)
42AQI (US)
26th May 2026
28AQI (US)
28AQI (US)
27th May 2026
28AQI (US)
28AQI (US)
28th May 2026
28AQI (US)
28AQI (US)
29th May 2026
26AQI (US)
26AQI (US)
30th May 2026
28AQI (US)
28AQI (US)
31st May 2026
28AQI (US)
28AQI (US)
1st June 2026
32AQI (US)
32AQI (US)
2nd June 2026
31AQI (US)
31AQI (US)
3rd June 2026
29AQI (US)
29AQI (US)
4th June 2026
25AQI (US)
25AQI (US)
5th June 2026
28AQI (US)
28AQI (US)
6th June 2026
24AQI (US)
24AQI (US)
7th June 2026
24AQI (US)
24AQI (US)
8th June 2026
26AQI (US)
26AQI (US)
9th June 2026
26AQI (US)
26AQI (US)
10th June 2026
27AQI (US)
27AQI (US)
11th June 2026
27AQI (US)
27AQI (US)
12th June 2026
27AQI (US)
27AQI (US)
13th June 2026
24AQI (US)
24AQI (US)
14th June 2026
24AQI (US)
24AQI (US)
15th June 2026
26AQI (US)
26AQI (US)
16th June 2026
27AQI (US)
27AQI (US)
17th June 2026
28AQI (US)
28AQI (US)
18th June 2026
27AQI (US)
27AQI (US)
19th June 2026
24AQI (US)
24AQI (US)
20th June 2026
24AQI (US)
24AQI (US)
21st June 2026
22AQI (US)
22AQI (US)
22nd June 2026
25AQI (US)
25AQI (US)
23rd June 2026
24AQI (US)
24AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
25AQI (US)
25AQI (US)
26th June 2026
28AQI (US)
28AQI (US)
27th June 2026
30AQI (US)
30AQI (US)
28th June 2026
27AQI (US)
27AQI (US)
29th June 2026
25AQI (US)
25AQI (US)
30th June 2026
26AQI (US)
26AQI (US)
1st July 2026
26AQI (US)
26AQI (US)
2nd July 2026
27AQI (US)
27AQI (US)
3rd July 2026
28AQI (US)
28AQI (US)
4th July 2026
24AQI (US)
24AQI (US)
5th July 2026
25AQI (US)
25AQI (US)
6th July 2026
28AQI (US)
28AQI (US)
7th July 2026
30AQI (US)
30AQI (US)
8th July 2026
26AQI (US)
26AQI (US)
9th July 2026
28AQI (US)
28AQI (US)
10th July 2026
32AQI (US)
32AQI (US)
11th July 2026
30AQI (US)
30AQI (US)
12th July 2026
28AQI (US)
28AQI (US)
13th July 2026
30AQI (US)
30AQI (US)
14th July 2026
30AQI (US)
30AQI (US)
15th July 2026
28AQI (US)
28AQI (US)
16th July 2026
28AQI (US)
28AQI (US)
17th July 2026
42AQI (US)
42AQI (US)
18th July 2026
52AQI (US)
52AQI (US)
19th July 2026
44AQI (US)
44AQI (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
42AQI (US)
42AQI (US)
24th July 2026
52AQI (US)
52AQI (US)
25th July 2026
44AQI (US)
44AQI (US)
26th July 2026
46AQI (US)
46AQI (US)
27th July 2026
44AQI (US)
44AQI (US)
28th July 2026
46AQI (US)
46AQI (US)
29th July 2026
46AQI (US)
46AQI (US)
30th July 2026
44AQI (US)
44AQI (US)
31st July 2026
48AQI (US)
48AQI (US)
1st August 2026
46AQI (US)
46AQI (US)
2nd August 2026
48AQI (US)
48AQI (US)
3rd August 2026
58AQI (US)
58AQI (US)
4th August 2026
47AQI (US)
47AQI (US)
5th August 2026
46AQI (US)
46AQI (US)
6th August 2026
48AQI (US)
48AQI (US)
7th August 2026
47AQI (US)
47AQI (US)
8th August 2026
49AQI (US)
49AQI (US)
9th August 2026
48AQI (US)
48AQI (US)
10th August 2026
47AQI (US)
47AQI (US)
11th August 2026
47AQI (US)
47AQI (US)
12th August 2026
46AQI (US)
46AQI (US)
13th August 2026
52AQI (US)
52AQI (US)
14th August 2026
44AQI (US)
44AQI (US)
15th August 2026
16th August 2026
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
47AQI (US)
44AQI (US)
35AQI (US)
31AQI (US)
36AQI (US)
26AQI (US)
37AQI (US)
48AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202637AQI (US)
16
15
25
3
30
1
28
26
4
30
29
2
12
2
196
27
Highest AQI (US) recorded in
August48AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202538AQI (US)
27
4
27
1
30
1
29
1
30
1
25
5
31
30
1
28
2
9
22
12
18
11
20
289
76
Highest AQI (US) recorded in
December57AQI (US)
Lowest AQI (US) recorded in
July22AQI (US)
202437AQI (US)
24
1
26
31
30
29
2
25
3
30
1
16
6
2
7
26
3
26
5
27
3
20
11
310
35
2
7
Highest AQI (US) recorded in
August80AQI (US)
Lowest AQI (US) recorded in
March25AQI (US)
202330AQI (US)
30
27
1
31
30
29
2
30
31
31
21
4
1
20
26
3
26
5
332
15
1
Highest AQI (US) recorded in
September39AQI (US)
Lowest AQI (US) recorded in
August19AQI (US)
202234AQI (US)
20
9
19
3
31
26
4
28
3
30
23
2
25
4
30
1
28
2
22
9
284
35
Highest AQI (US) recorded in
January42AQI (US)
Lowest AQI (US) recorded in
July22AQI (US)
202136AQI (US)
21
8
28
29
1
23
6
25
6
26
4
31
27
4
25
5
31
22
8
23
3
5
311
45
5
Highest AQI (US) recorded in
December45AQI (US)
Lowest AQI (US) recorded in
July26AQI (US)
202042AQI (US)
13
19
1
18
24
6
29
2
19
11
1
13
12
5
21
7
2
21
3
23
5
200
47
3
5
Highest AQI (US) recorded in
September71AQI (US)
Lowest AQI (US) recorded in
March29AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2020(Avg.)
42AQI (US)Least Polluted Year Recorded
2023(Avg.)
30AQI (US)San Francisco's annual 2026 AQI (US) (37) shows an average percentage change of 3.3% (worsened AQI (US)) compared to previous years: 2020 (42), 2021 (36), 2022 (34), 2023 (30), 2024 (37), 2025 (38).
