San Leandro, 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 Leandro, California, United States
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
30th Aug 2023
71AQILowest AQI recorded on
1st Aug 2024
12AQISame Day Analysis (14th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 44 of Good air quality on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
San Leandro, 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
25AQI
Night time
Avg. Highest Time
3AM15th Aug
52AQI
Avg. Lowest Time
4AM15th Aug
42AQI
In the last 24 hours,
San Leandro's AQI reached its highest point of 58 at 7 PM during the Day, while the lowest point, 25, was recorded at 9 AM during the Day between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
San Leandro, 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 2026446 AMAQI
17th Jul 2026447 AMAQI
17th Jul 2026448 AMAQI
17th Jul 2026429 AMAQI
17th Jul 20264410 AMAQI
17th Jul 20264211 AMAQI
17th Jul 20265012 PMAQI
17th Jul 2026501 PMAQI
17th Jul 2026482 PMAQI
17th Jul 2026473 PMAQI
17th Jul 2026444 PMAQI
17th Jul 2026445 PMAQI
17th Jul 2026426 PMAQI
17th Jul 2026427 PMAQI
17th Jul 2026448 PMAQI
17th Jul 2026429 PMAQI
17th Jul 20264010 PMAQI
17th Jul 20264811 PMAQI
18th Jul 20263612 AMAQI
18th Jul 2026501 AMAQI
18th Jul 2026502 AMAQI
18th Jul 2026383 AMAQI
18th Jul 2026464 AMAQI
18th Jul 2026465 AMAQI
16°C13/22°C
18th Jul 2026426 AMAQI
18th Jul 2026447 AMAQI
18th Jul 2026498 AMAQI
18th Jul 2026569 AMAQI
18th Jul 20265810 AMAQI
18th Jul 20265711 AMAQI
18th Jul 20267112 PMAQI
18th Jul 2026811 PMAQI
18th Jul 2026742 PMAQI
18th Jul 2026593 PMAQI
18th Jul 2026564 PMAQI
18th Jul 2026495 PMAQI
18th Jul 2026466 PMAQI
18th Jul 2026487 PMAQI
18th Jul 2026508 PMAQI
18th Jul 2026529 PMAQI
18th Jul 20264210 PMAQI
18th Jul 20265011 PMAQI
19th Jul 20264612 AMAQI
19th Jul 2026481 AMAQI
19th Jul 2026502 AMAQI
19th Jul 2026463 AMAQI
19th Jul 2026424 AMAQI
19th Jul 2026495 AMAQI
17°C13/25°C
19th Jul 2026386 AMAQI
19th Jul 2026447 AMAQI
19th Jul 2026428 AMAQI
19th Jul 2026429 AMAQI
19th Jul 20264010 AMAQI
19th Jul 20264211 AMAQI
19th Jul 20264212 PMAQI
19th Jul 2026441 PMAQI
19th Jul 2026442 PMAQI
19th Jul 2026403 PMAQI
19th Jul 2026524 PMAQI
19th Jul 2026465 PMAQI
19th Jul 2026406 PMAQI
19th Jul 2026637 PMAQI
19th Jul 2026568 PMAQI
19th Jul 2026489 PMAQI
19th Jul 20264610 PMAQI
19th Jul 20263411 PMAQI
20th Jul 20264612 AMAQI
20th Jul 2026481 AMAQI
20th Jul 2026462 AMAQI
20th Jul 2026423 AMAQI
20th Jul 2026424 AMAQI
20th Jul 2026565 AMAQI
16°C13/23°C
20th Jul 2026546 AMAQI
20th Jul 2026487 AMAQI
20th Jul 2026468 AMAQI
20th Jul 2026429 AMAQI
20th Jul 20263410 AMAQI
20th Jul 20265011 AMAQI
20th Jul 20265812 PMAQI
20th Jul 2026571 PMAQI
20th Jul 2026522 PMAQI
20th Jul 2026423 PMAQI
20th Jul 2026454 PMAQI
20th Jul 2026345 PMAQI
20th Jul 2026766 PMAQI
20th Jul 2026427 PMAQI
20th Jul 2026489 PMAQI
20th Jul 20264610 PMAQI
20th Jul 20262011 PMAQI
21st Jul 20261812 AMAQI
21st Jul 2026461 AMAQI
21st Jul 2026462 AMAQI
21st Jul 2026523 AMAQI
21st Jul 2026184 AMAQI
21st Jul 2026195 AMAQI
18°C13/27°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 20264412 PMAQI
21st Jul 2026481 PMAQI
21st Jul 2026462 PMAQI
21st Jul 2026473 PMAQI
21st Jul 2026494 PMAQI
21st Jul 2026405 PMAQI
21st Jul 2026466 PMAQI
21st Jul 2026427 PMAQI
21st Jul 2026488 PMAQI
21st Jul 2026609 PMAQI
21st Jul 20266610 PMAQI
21st Jul 20266211 PMAQI
22nd Jul 20265112 AMAQI
22nd Jul 2026461 AMAQI
22nd Jul 2026462 AMAQI
22nd Jul 2026503 AMAQI
22nd Jul 2026464 AMAQI
22nd Jul 2026245 AMAQI
25°C16/34°C
22nd Jul 2026426 AMAQI
22nd Jul 2026377 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 2026362 PMAQI
22nd Jul 2026503 PMAQI
22nd Jul 2026564 PMAQI
22nd Jul 2026425 PMAQI
22nd Jul 2026316 PMAQI
22nd Jul 2026707 PMAQI
22nd Jul 2026548 PMAQI
22nd Jul 2026529 PMAQI
22nd Jul 20265010 PMAQI
22nd Jul 20261811 PMAQI
23rd Jul 20261812 AMAQI
23rd Jul 2026241 AMAQI
23rd Jul 2026182 AMAQI
23rd Jul 2026423 AMAQI
23rd Jul 2026194 AMAQI
23rd Jul 2026235 AMAQI
20°C16/24°C
23rd Jul 2026206 AMAQI
23rd Jul 2026217 AMAQI
23rd Jul 2026508 AMAQI
23rd Jul 2026569 AMAQI
23rd Jul 20265210 AMAQI
23rd Jul 20262011 AMAQI
23rd Jul 20261812 PMAQI
23rd Jul 2026461 PMAQI
23rd Jul 2026732 PMAQI
23rd Jul 2026473 PMAQI
23rd Jul 2026664 PMAQI
23rd Jul 2026315 PMAQI
23rd Jul 2026476 PMAQI
23rd Jul 2026487 PMAQI
23rd Jul 2026638 PMAQI
23rd Jul 2026559 PMAQI
23rd Jul 20265210 PMAQI
23rd Jul 20265011 PMAQI
24th Jul 20263812 AMAQI
24th Jul 2026521 AMAQI
24th Jul 2026622 AMAQI
24th Jul 2026543 AMAQI
24th Jul 2026464 AMAQI
24th Jul 2026675 AMAQI
18°C15/23°C
24th Jul 2026486 AMAQI
24th Jul 2026447 AMAQI
24th Jul 2026728 AMAQI
24th Jul 2026669 AMAQI
24th Jul 20265410 AMAQI
24th Jul 20266011 AMAQI
24th Jul 20265412 PMAQI
24th Jul 2026371 PMAQI
24th Jul 2026522 PMAQI
24th Jul 2026513 PMAQI
24th Jul 2026504 PMAQI
24th Jul 2026525 PMAQI
24th Jul 2026346 PMAQI
24th Jul 2026517 PMAQI
24th Jul 2026528 PMAQI
24th Jul 2026539 PMAQI
24th Jul 20265010 PMAQI
24th Jul 20265011 PMAQI
25th Jul 20264612 AMAQI
25th Jul 2026511 AMAQI
25th Jul 2026462 AMAQI
25th Jul 2026463 AMAQI
25th Jul 2026464 AMAQI
25th Jul 2026565 AMAQI
19°C15/25°C
25th Jul 2026466 AMAQI
25th Jul 2026187 AMAQI
25th Jul 2026468 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20264810 AMAQI
25th Jul 20265111 AMAQI
25th Jul 20263412 PMAQI
25th Jul 2026421 PMAQI
25th Jul 2026462 PMAQI
25th Jul 2026403 PMAQI
25th Jul 2026424 PMAQI
25th Jul 2026445 PMAQI
25th Jul 2026236 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 2026404 AMAQI
26th Jul 2026485 AMAQI
19°C14/26°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 2026461 PMAQI
26th Jul 2026402 PMAQI
26th Jul 2026513 PMAQI
26th Jul 2026504 PMAQI
26th Jul 2026465 PMAQI
26th Jul 2026346 PMAQI
26th Jul 2026667 PMAQI
26th Jul 2026608 PMAQI
26th Jul 2026569 PMAQI
26th Jul 20265410 PMAQI
26th Jul 20265611 PMAQI
27th Jul 20265212 AMAQI
27th Jul 2026461 AMAQI
27th Jul 2026482 AMAQI
27th Jul 2026513 AMAQI
27th Jul 2026384 AMAQI
27th Jul 2026465 AMAQI
18°C14/23°C
27th Jul 2026226 AMAQI
27th Jul 2026417 AMAQI
27th Jul 2026468 AMAQI
27th Jul 2026469 AMAQI
27th Jul 20265010 AMAQI
27th Jul 20266011 AMAQI
27th Jul 20265412 PMAQI
27th Jul 2026571 PMAQI
27th Jul 2026462 PMAQI
27th Jul 2026523 PMAQI
27th Jul 2026524 PMAQI
27th Jul 2026285 PMAQI
27th Jul 2026306 PMAQI
27th Jul 2026447 PMAQI
27th Jul 2026278 PMAQI
27th Jul 2026369 PMAQI
27th Jul 20263610 PMAQI
27th Jul 20263411 PMAQI
28th Jul 20264812 AMAQI
28th Jul 2026461 AMAQI
28th Jul 2026462 AMAQI
28th Jul 2026463 AMAQI
28th Jul 2026344 AMAQI
28th Jul 2026425 AMAQI
17°C14/24°C
28th Jul 2026386 AMAQI
28th Jul 2026527 AMAQI
28th Jul 2026448 AMAQI
28th Jul 2026469 AMAQI
28th Jul 20265210 AMAQI
28th Jul 20265811 AMAQI
28th Jul 20265112 PMAQI
28th Jul 2026441 PMAQI
28th Jul 2026422 PMAQI
28th Jul 2026443 PMAQI
28th Jul 2026384 PMAQI
28th Jul 2026405 PMAQI
28th Jul 2026426 PMAQI
28th Jul 2026537 PMAQI
28th Jul 2026548 PMAQI
28th Jul 2026469 PMAQI
28th Jul 20264610 PMAQI
28th Jul 20265011 PMAQI
29th Jul 20264612 AMAQI
29th Jul 2026481 AMAQI
29th Jul 2026462 AMAQI
29th Jul 2026493 AMAQI
29th Jul 2026504 AMAQI
29th Jul 2026505 AMAQI
18°C13/28°C
29th Jul 2026446 AMAQI
29th Jul 2026507 AMAQI
29th Jul 2026548 AMAQI
29th Jul 2026509 AMAQI
29th Jul 20264010 AMAQI
29th Jul 20263611 AMAQI
29th Jul 20265012 PMAQI
29th Jul 2026471 PMAQI
29th Jul 2026462 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 2026409 PMAQI
29th Jul 20264210 PMAQI
29th Jul 20264211 PMAQI
30th Jul 20264412 AMAQI
30th Jul 2026481 AMAQI
30th Jul 2026462 AMAQI
30th Jul 2026403 AMAQI
30th Jul 2026424 AMAQI
30th Jul 2026485 AMAQI
18°C15/24°C
30th Jul 2026406 AMAQI
30th Jul 2026407 AMAQI
30th Jul 2026408 AMAQI
30th Jul 2026429 AMAQI
30th Jul 20264610 AMAQI
30th Jul 20264211 AMAQI
30th Jul 20264212 PMAQI
30th Jul 2026401 PMAQI
30th Jul 2026442 PMAQI
30th Jul 2026463 PMAQI
30th Jul 2026484 PMAQI
30th Jul 2026535 PMAQI
30th Jul 2026466 PMAQI
30th Jul 2026407 PMAQI
30th Jul 2026388 PMAQI
30th Jul 2026409 PMAQI
30th Jul 20264210 PMAQI
30th Jul 20264611 PMAQI
31st Jul 20264212 AMAQI
31st Jul 2026421 AMAQI
31st Jul 2026482 AMAQI
31st Jul 2026463 AMAQI
31st Jul 2026424 AMAQI
31st Jul 2026445 AMAQI
18°C14/24°C
31st Jul 2026556 AMAQI
31st Jul 2026307 AMAQI
31st Jul 2026568 AMAQI
31st Jul 2026309 AMAQI
31st Jul 20264410 AMAQI
31st Jul 20264411 AMAQI
31st Jul 20264412 PMAQI
31st Jul 2026461 PMAQI
31st Jul 2026482 PMAQI
31st Jul 2026533 PMAQI
31st Jul 2026554 PMAQI
31st Jul 2026585 PMAQI
31st Jul 2026546 PMAQI
31st Jul 2026527 PMAQI
31st Jul 2026488 PMAQI
31st Jul 2026449 PMAQI
31st Jul 20264210 PMAQI
31st Jul 20264611 PMAQI
1st Aug 20265012 AMAQI
1st Aug 2026441 AMAQI
1st Aug 2026422 AMAQI
1st Aug 2026463 AMAQI
1st Aug 2026494 AMAQI
1st Aug 2026425 AMAQI
19°C13/29°C
1st Aug 2026526 AMAQI
1st Aug 2026497 AMAQI
1st Aug 2026468 AMAQI
1st Aug 2026529 AMAQI
1st Aug 20264610 AMAQI
1st Aug 20264611 AMAQI
1st Aug 20264612 PMAQI
1st Aug 2026481 PMAQI
1st Aug 2026462 PMAQI
1st Aug 2026423 PMAQI
1st Aug 2026424 PMAQI
1st Aug 2026445 PMAQI
1st Aug 2026466 PMAQI
1st Aug 2026447 PMAQI
1st Aug 2026428 PMAQI
1st Aug 2026469 PMAQI
1st Aug 20264710 PMAQI
1st Aug 20264911 PMAQI
2nd Aug 20264612 AMAQI
2nd Aug 2026441 AMAQI
2nd Aug 2026382 AMAQI
2nd Aug 2026463 AMAQI
2nd Aug 2026364 AMAQI
2nd Aug 2026465 AMAQI
21°C15/31°C
2nd Aug 2026446 AMAQI
2nd Aug 2026327 AMAQI
2nd Aug 2026408 AMAQI
2nd Aug 2026449 AMAQI
2nd Aug 20264910 AMAQI
2nd Aug 20265111 AMAQI
2nd Aug 20265012 PMAQI
2nd Aug 2026531 PMAQI
2nd Aug 2026522 PMAQI
2nd Aug 2026543 PMAQI
2nd Aug 2026544 PMAQI
2nd Aug 2026545 PMAQI
2nd Aug 2026546 PMAQI
2nd Aug 2026537 PMAQI
2nd Aug 2026538 PMAQI
2nd Aug 2026529 PMAQI
2nd Aug 20265510 PMAQI
2nd Aug 20265411 PMAQI
3rd Aug 20265512 AMAQI
3rd Aug 2026561 AMAQI
3rd Aug 2026562 AMAQI
3rd Aug 2026573 AMAQI
3rd Aug 2026554 AMAQI
3rd Aug 2026565 AMAQI
22°C14/33°C
3rd Aug 2026556 AMAQI
3rd Aug 2026557 AMAQI
3rd Aug 2026568 AMAQI
3rd Aug 2026589 AMAQI
3rd Aug 20265910 AMAQI
3rd Aug 20266011 AMAQI
3rd Aug 20266312 PMAQI
3rd Aug 2026621 PMAQI
3rd Aug 2026662 PMAQI
3rd Aug 2026663 PMAQI
3rd Aug 2026674 PMAQI
3rd Aug 2026645 PMAQI
3rd Aug 2026596 PMAQI
3rd Aug 2026587 PMAQI
3rd Aug 2026568 PMAQI
3rd Aug 2026549 PMAQI
3rd Aug 20266010 PMAQI
3rd Aug 20265611 PMAQI
4th Aug 20265712 AMAQI
4th Aug 2026561 AMAQI
4th Aug 2026532 AMAQI
4th Aug 2026503 AMAQI
4th Aug 2026484 AMAQI
4th Aug 2026465 AMAQI
21°C13/33°C
4th Aug 2026516 AMAQI
4th Aug 2026517 AMAQI
4th Aug 2026498 AMAQI
4th Aug 2026449 AMAQI
4th Aug 20265110 AMAQI
4th Aug 20264411 AMAQI
4th Aug 20265112 PMAQI
4th Aug 2026541 PMAQI
4th Aug 2026512 PMAQI
4th Aug 2026483 PMAQI
4th Aug 2026464 PMAQI
4th Aug 2026425 PMAQI
4th Aug 2026466 PMAQI
4th Aug 2026467 PMAQI
4th Aug 2026508 PMAQI
4th Aug 2026489 PMAQI
4th Aug 20264610 PMAQI
4th Aug 20264611 PMAQI
5th Aug 20264612 AMAQI
5th Aug 2026441 AMAQI
5th Aug 2026442 AMAQI
5th Aug 2026443 AMAQI
5th Aug 2026424 AMAQI
5th Aug 2026405 AMAQI
18°C13/30°C
5th Aug 2026386 AMAQI
5th Aug 2026467 AMAQI
5th Aug 2026448 AMAQI
5th Aug 2026469 AMAQI
5th Aug 20264410 AMAQI
5th Aug 20264811 AMAQI
5th Aug 20265012 PMAQI
5th Aug 2026441 PMAQI
5th Aug 2026462 PMAQI
5th Aug 2026463 PMAQI
5th Aug 2026444 PMAQI
5th Aug 2026505 PMAQI
5th Aug 2026506 PMAQI
5th Aug 2026427 PMAQI
5th Aug 2026428 PMAQI
5th Aug 2026449 PMAQI
5th Aug 20264710 PMAQI
5th Aug 20265011 PMAQI
6th Aug 20264412 AMAQI
6th Aug 2026441 AMAQI
6th Aug 2026462 AMAQI
6th Aug 2026403 AMAQI
6th Aug 2026444 AMAQI
6th Aug 2026495 AMAQI
17°C13/25°C
6th Aug 2026466 AMAQI
6th Aug 2026427 AMAQI
6th Aug 2026428 AMAQI
6th Aug 2026459 AMAQI
6th Aug 20265010 AMAQI
6th Aug 20264211 AMAQI
6th Aug 20265712 PMAQI
6th Aug 2026581 PMAQI
6th Aug 2026562 PMAQI
6th Aug 2026583 PMAQI
6th Aug 2026514 PMAQI
6th Aug 2026465 PMAQI
6th Aug 2026446 PMAQI
6th Aug 2026467 PMAQI
6th Aug 2026488 PMAQI
6th Aug 2026499 PMAQI
6th Aug 20264810 PMAQI
6th Aug 20264211 PMAQI
7th Aug 20264612 AMAQI
7th Aug 2026421 AMAQI
7th Aug 2026382 AMAQI
7th Aug 2026443 AMAQI
7th Aug 2026444 AMAQI
7th Aug 2026465 AMAQI
18°C15/25°C
7th Aug 2026506 AMAQI
7th Aug 2026467 AMAQI
7th Aug 2026468 AMAQI
7th Aug 2026409 AMAQI
7th Aug 20264210 AMAQI
7th Aug 20264211 AMAQI
7th Aug 20264612 PMAQI
7th Aug 2026521 PMAQI
7th Aug 2026522 PMAQI
7th Aug 2026563 PMAQI
7th Aug 2026564 PMAQI
7th Aug 2026505 PMAQI
7th Aug 2026466 PMAQI
7th Aug 2026427 PMAQI
7th Aug 2026488 PMAQI
7th Aug 2026479 PMAQI
7th Aug 20264410 PMAQI
7th Aug 20264411 PMAQI
8th Aug 20264612 AMAQI
8th Aug 2026421 AMAQI
8th Aug 2026422 AMAQI
8th Aug 2026443 AMAQI
8th Aug 2026444 AMAQI
8th Aug 2026485 AMAQI
17°C13/23°C
8th Aug 2026466 AMAQI
8th Aug 2026547 AMAQI
8th Aug 2026528 AMAQI
8th Aug 2026449 AMAQI
8th Aug 20265410 AMAQI
8th Aug 20265511 AMAQI
8th Aug 20265712 PMAQI
8th Aug 2026531 PMAQI
8th Aug 2026492 PMAQI
8th Aug 2026483 PMAQI
8th Aug 2026484 PMAQI
8th Aug 2026495 PMAQI
8th Aug 2026496 PMAQI
8th Aug 2026487 PMAQI
8th Aug 2026468 PMAQI
8th Aug 2026509 PMAQI
8th Aug 20265110 PMAQI
8th Aug 20264611 PMAQI
9th Aug 20264812 AMAQI
9th Aug 2026461 AMAQI
9th Aug 2026462 AMAQI
9th Aug 2026423 AMAQI
9th Aug 2026464 AMAQI
9th Aug 2026485 AMAQI
17°C14/23°C
9th Aug 2026446 AMAQI
9th Aug 2026477 AMAQI
9th Aug 2026468 AMAQI
9th Aug 2026449 AMAQI
9th Aug 20264210 AMAQI
9th Aug 20264411 AMAQI
9th Aug 20264812 PMAQI
9th Aug 2026461 PMAQI
9th Aug 2026492 PMAQI
9th Aug 2026503 PMAQI
9th Aug 2026544 PMAQI
9th Aug 2026525 PMAQI
9th Aug 2026506 PMAQI
9th Aug 2026447 PMAQI
9th Aug 2026468 PMAQI
9th Aug 2026429 PMAQI
9th Aug 20264410 PMAQI
9th Aug 20264411 PMAQI
10th Aug 20264812 AMAQI
10th Aug 2026421 AMAQI
10th Aug 2026482 AMAQI
10th Aug 2026483 AMAQI
10th Aug 2026464 AMAQI
10th Aug 2026445 AMAQI
19°C14/30°C
10th Aug 2026466 AMAQI
10th Aug 2026487 AMAQI
10th Aug 2026498 AMAQI
10th Aug 2026529 AMAQI
10th Aug 20265310 AMAQI
10th Aug 20265211 AMAQI
10th Aug 20265212 PMAQI
10th Aug 2026511 PMAQI
10th Aug 2026492 PMAQI
10th Aug 2026463 PMAQI
10th Aug 2026504 PMAQI
10th Aug 2026445 PMAQI
10th Aug 2026506 PMAQI
10th Aug 2026527 PMAQI
10th Aug 2026528 PMAQI
10th Aug 2026499 PMAQI
10th Aug 20265110 PMAQI
10th Aug 20265311 PMAQI
11th Aug 20265212 AMAQI
11th Aug 2026511 AMAQI
11th Aug 2026512 AMAQI
11th Aug 2026493 AMAQI
11th Aug 2026504 AMAQI
11th Aug 2026495 AMAQI
18°C13/24°C
11th Aug 2026466 AMAQI
11th Aug 2026467 AMAQI
11th Aug 2026408 AMAQI
11th Aug 2026429 AMAQI
11th Aug 20264610 AMAQI
11th Aug 20264411 AMAQI
11th Aug 20264812 PMAQI
11th Aug 2026521 PMAQI
11th Aug 2026482 PMAQI
11th Aug 2026463 PMAQI
11th Aug 2026514 PMAQI
11th Aug 2026585 PMAQI
11th Aug 2026526 PMAQI
11th Aug 2026487 PMAQI
11th Aug 2026468 PMAQI
11th Aug 2026429 PMAQI
11th Aug 20264610 PMAQI
11th Aug 20262711 PMAQI
12th Aug 20265012 AMAQI
12th Aug 2026441 AMAQI
12th Aug 2026342 AMAQI
12th Aug 2026343 AMAQI
12th Aug 2026484 AMAQI
12th Aug 2026465 AMAQI
17°C13/24°C
12th Aug 2026346 AMAQI
12th Aug 2026497 AMAQI
12th Aug 2026498 AMAQI
12th Aug 2026429 AMAQI
12th Aug 20264410 AMAQI
12th Aug 20264911 AMAQI
12th Aug 20266012 PMAQI
12th Aug 2026581 PMAQI
12th Aug 2026482 PMAQI
12th Aug 2026523 PMAQI
12th Aug 2026524 PMAQI
12th Aug 2026515 PMAQI
12th Aug 2026506 PMAQI
12th Aug 2026467 PMAQI
12th Aug 2026448 PMAQI
12th Aug 2026479 PMAQI
12th Aug 20263810 PMAQI
12th Aug 20265011 PMAQI
13th Aug 20265012 AMAQI
13th Aug 2026521 AMAQI
13th Aug 2026622 AMAQI
13th Aug 2026363 AMAQI
13th Aug 2026484 AMAQI
13th Aug 2026535 AMAQI
18°C13/26°C
13th Aug 2026526 AMAQI
13th Aug 2026517 AMAQI
13th Aug 2026528 AMAQI
13th Aug 2026519 AMAQI
13th Aug 20265410 AMAQI
13th Aug 20265011 AMAQI
13th Aug 20265212 PMAQI
13th Aug 2026561 PMAQI
13th Aug 2026602 PMAQI
13th Aug 2026573 PMAQI
13th Aug 2026564 PMAQI
13th Aug 2026505 PMAQI
13th Aug 2026286 PMAQI
13th Aug 2026557 PMAQI
13th Aug 2026548 PMAQI
13th Aug 2026609 PMAQI
13th Aug 20266010 PMAQI
13th Aug 20266211 PMAQI
14th Aug 20265412 AMAQI
14th Aug 2026511 AMAQI
14th Aug 2026462 AMAQI
14th Aug 2026463 AMAQI
14th Aug 2026544 AMAQI
14th Aug 2026515 AMAQI
17°C14/22°C
14th Aug 2026426 AMAQI
14th Aug 2026257 AMAQI
14th Aug 2026328 AMAQI
14th Aug 2026259 AMAQI
14th Aug 20262810 AMAQI
14th Aug 20263811 AMAQI
14th Aug 20264612 PMAQI
14th Aug 2026421 PMAQI
14th Aug 2026482 PMAQI
14th Aug 2026463 PMAQI
14th Aug 2026324 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 2026491 AMAQI
15th Aug 2026462 AMAQI
15th Aug 2026523 AMAQI
15th Aug 2026424 AMAQI
15th Aug 2026525 AMAQI
17°C16/21°C
15th Aug 2026466 AMAQI
6 AM15th Aug 2026207 AMAQI
15th Aug 2026268 AMAQI
15th Aug 2026279 AMAQI
15th Aug 20262310 AMAQI
15th Aug 20262111 AMAQI
15th Aug 20262212 PMAQI
15th Aug 2026241 PMAQI
1 PM15th Aug 2026522 PMAQI
15th Aug 2026503 PMAQI
15th Aug 2026494 PMAQI
15th Aug 2026485 PMAQI
15th Aug 2026456 PMAQI
15th Aug 2026547 PMAQI
15th Aug 2026568 PMAQI
8 PM15th Aug 2026589 PMAQI
15th Aug 20265010 PMAQI
15th Aug 20264611 PMAQI
1 AM
5 AM
17°C13/22°C
Day time
Avg. Highest Time
12 PM - 4 PM
49AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
7 AM
42AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 4 PM (Avg. 49), while the lowest AQI was between 7 AM to 7 AM (Avg. 42).
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 Leandro, California, United States
2026
91%
204
9%
19
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Good
204 DaysModerate
19 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2026, 91% of 227 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 Leandro, 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
21AQI (US)
21AQI (US)
2nd January 2026
12AQI (US)
12AQI (US)
3rd January 2026
17AQI (US)
17AQI (US)
4th January 2026
28AQI (US)
28AQI (US)
5th January 2026
21AQI (US)
21AQI (US)
6th January 2026
14AQI (US)
14AQI (US)
7th January 2026
21AQI (US)
21AQI (US)
8th January 2026
17AQI (US)
17AQI (US)
9th January 2026
21AQI (US)
21AQI (US)
10th January 2026
37AQI (US)
37AQI (US)
11th January 2026
30AQI (US)
30AQI (US)
12th January 2026
36AQI (US)
36AQI (US)
13th January 2026
51AQI (US)
51AQI (US)
14th January 2026
53AQI (US)
53AQI (US)
15th January 2026
56AQI (US)
56AQI (US)
16th January 2026
32AQI (US)
32AQI (US)
17th January 2026
46AQI (US)
46AQI (US)
18th January 2026
56AQI (US)
56AQI (US)
19th January 2026
38AQI (US)
38AQI (US)
20th January 2026
38AQI (US)
38AQI (US)
21st January 2026
45AQI (US)
45AQI (US)
22nd January 2026
47AQI (US)
47AQI (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
45AQI (US)
45AQI (US)
27th January 2026
42AQI (US)
42AQI (US)
28th January 2026
48AQI (US)
48AQI (US)
29th January 2026
54AQI (US)
54AQI (US)
30th January 2026
51AQI (US)
51AQI (US)
31st January 2026
41AQI (US)
41AQI (US)
1st February 2026
47AQI (US)
47AQI (US)
2nd February 2026
47AQI (US)
47AQI (US)
3rd February 2026
46AQI (US)
46AQI (US)
4th February 2026
47AQI (US)
47AQI (US)
5th February 2026
46AQI (US)
46AQI (US)
6th February 2026
42AQI (US)
42AQI (US)
7th February 2026
34AQI (US)
34AQI (US)
8th February 2026
45AQI (US)
45AQI (US)
9th February 2026
47AQI (US)
47AQI (US)
10th February 2026
46AQI (US)
46AQI (US)
11th February 2026
45AQI (US)
45AQI (US)
12th February 2026
47AQI (US)
47AQI (US)
13th February 2026
52AQI (US)
52AQI (US)
14th February 2026
51AQI (US)
51AQI (US)
15th February 2026
43AQI (US)
43AQI (US)
16th February 2026
45AQI (US)
45AQI (US)
17th February 2026
51AQI (US)
51AQI (US)
18th February 2026
43AQI (US)
43AQI (US)
19th February 2026
44AQI (US)
44AQI (US)
20th February 2026
41AQI (US)
41AQI (US)
21st February 2026
34AQI (US)
34AQI (US)
22nd February 2026
36AQI (US)
36AQI (US)
23rd February 2026
40AQI (US)
40AQI (US)
24th February 2026
43AQI (US)
43AQI (US)
25th February 2026
42AQI (US)
42AQI (US)
26th February 2026
35AQI (US)
35AQI (US)
27th February 2026
32AQI (US)
32AQI (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
45AQI (US)
45AQI (US)
4th March 2026
42AQI (US)
42AQI (US)
5th March 2026
38AQI (US)
38AQI (US)
6th March 2026
35AQI (US)
35AQI (US)
7th March 2026
35AQI (US)
35AQI (US)
8th March 2026
34AQI (US)
34AQI (US)
9th March 2026
34AQI (US)
34AQI (US)
10th March 2026
32AQI (US)
32AQI (US)
11th March 2026
36AQI (US)
36AQI (US)
12th March 2026
36AQI (US)
36AQI (US)
13th March 2026
35AQI (US)
35AQI (US)
14th March 2026
32AQI (US)
32AQI (US)
15th March 2026
33AQI (US)
33AQI (US)
16th March 2026
35AQI (US)
35AQI (US)
17th March 2026
32AQI (US)
32AQI (US)
18th March 2026
31AQI (US)
31AQI (US)
19th March 2026
32AQI (US)
32AQI (US)
20th March 2026
35AQI (US)
35AQI (US)
21st March 2026
31AQI (US)
31AQI (US)
22nd March 2026
31AQI (US)
31AQI (US)
23rd March 2026
35AQI (US)
35AQI (US)
24th March 2026
36AQI (US)
36AQI (US)
25th March 2026
32AQI (US)
32AQI (US)
26th March 2026
33AQI (US)
33AQI (US)
27th March 2026
32AQI (US)
32AQI (US)
28th March 2026
32AQI (US)
32AQI (US)
29th March 2026
27AQI (US)
27AQI (US)
30th March 2026
27AQI (US)
27AQI (US)
31st March 2026
25AQI (US)
25AQI (US)
1st April 2026
32AQI (US)
32AQI (US)
2nd April 2026
33AQI (US)
33AQI (US)
3rd April 2026
27AQI (US)
27AQI (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
36AQI (US)
36AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
33AQI (US)
33AQI (US)
11th April 2026
35AQI (US)
35AQI (US)
12th April 2026
30AQI (US)
30AQI (US)
13th April 2026
35AQI (US)
35AQI (US)
14th April 2026
34AQI (US)
34AQI (US)
15th April 2026
31AQI (US)
31AQI (US)
16th April 2026
31AQI (US)
31AQI (US)
17th April 2026
18th April 2026
32AQI (US)
32AQI (US)
19th April 2026
31AQI (US)
31AQI (US)
20th April 2026
28AQI (US)
28AQI (US)
21st April 2026
29AQI (US)
29AQI (US)
22nd April 2026
23rd April 2026
27AQI (US)
27AQI (US)
24th April 2026
27AQI (US)
27AQI (US)
25th April 2026
28AQI (US)
28AQI (US)
26th April 2026
32AQI (US)
32AQI (US)
27th April 2026
27AQI (US)
27AQI (US)
28th April 2026
24AQI (US)
24AQI (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
29AQI (US)
29AQI (US)
5th May 2026
34AQI (US)
34AQI (US)
6th May 2026
32AQI (US)
32AQI (US)
7th May 2026
28AQI (US)
28AQI (US)
8th May 2026
29AQI (US)
29AQI (US)
9th May 2026
10th May 2026
32AQI (US)
32AQI (US)
11th May 2026
33AQI (US)
33AQI (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
57AQI (US)
57AQI (US)
18th May 2026
52AQI (US)
52AQI (US)
19th May 2026
53AQI (US)
53AQI (US)
20th May 2026
45AQI (US)
45AQI (US)
21st May 2026
39AQI (US)
39AQI (US)
22nd May 2026
47AQI (US)
47AQI (US)
23rd May 2026
48AQI (US)
48AQI (US)
24th May 2026
42AQI (US)
42AQI (US)
25th May 2026
42AQI (US)
42AQI (US)
26th May 2026
27AQI (US)
27AQI (US)
27th May 2026
28AQI (US)
28AQI (US)
28th May 2026
27AQI (US)
27AQI (US)
29th May 2026
25AQI (US)
25AQI (US)
30th May 2026
28AQI (US)
28AQI (US)
31st May 2026
29AQI (US)
29AQI (US)
1st June 2026
31AQI (US)
31AQI (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
27AQI (US)
27AQI (US)
6th June 2026
25AQI (US)
25AQI (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
23AQI (US)
23AQI (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
26AQI (US)
26AQI (US)
19th June 2026
25AQI (US)
25AQI (US)
20th June 2026
23AQI (US)
23AQI (US)
21st June 2026
21AQI (US)
21AQI (US)
22nd June 2026
25AQI (US)
25AQI (US)
23rd June 2026
25AQI (US)
25AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
24AQI (US)
24AQI (US)
26th June 2026
27AQI (US)
27AQI (US)
27th June 2026
29AQI (US)
29AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
24AQI (US)
24AQI (US)
30th June 2026
27AQI (US)
27AQI (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
29AQI (US)
29AQI (US)
8th July 2026
27AQI (US)
27AQI (US)
9th July 2026
29AQI (US)
29AQI (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
29AQI (US)
29AQI (US)
15th July 2026
27AQI (US)
27AQI (US)
16th July 2026
29AQI (US)
29AQI (US)
17th July 2026
43AQI (US)
43AQI (US)
18th July 2026
52AQI (US)
52AQI (US)
19th July 2026
45AQI (US)
45AQI (US)
20th July 2026
47AQI (US)
47AQI (US)
21st July 2026
45AQI (US)
45AQI (US)
22nd July 2026
46AQI (US)
46AQI (US)
23rd July 2026
40AQI (US)
40AQI (US)
24th July 2026
52AQI (US)
52AQI (US)
25th July 2026
44AQI (US)
44AQI (US)
26th July 2026
47AQI (US)
47AQI (US)
27th July 2026
43AQI (US)
43AQI (US)
28th July 2026
46AQI (US)
46AQI (US)
29th July 2026
45AQI (US)
45AQI (US)
30th July 2026
43AQI (US)
43AQI (US)
31st July 2026
46AQI (US)
46AQI (US)
1st August 2026
46AQI (US)
46AQI (US)
2nd August 2026
48AQI (US)
48AQI (US)
3rd August 2026
59AQI (US)
59AQI (US)
4th August 2026
49AQI (US)
49AQI (US)
5th August 2026
45AQI (US)
45AQI (US)
6th August 2026
47AQI (US)
47AQI (US)
7th August 2026
46AQI (US)
46AQI (US)
8th August 2026
49AQI (US)
49AQI (US)
9th August 2026
46AQI (US)
46AQI (US)
10th August 2026
49AQI (US)
49AQI (US)
11th August 2026
47AQI (US)
47AQI (US)
12th August 2026
47AQI (US)
47AQI (US)
13th August 2026
53AQI (US)
53AQI (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
37AQI (US)
43AQI (US)
34AQI (US)
30AQI (US)
35AQI (US)
26AQI (US)
37AQI (US)
48AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
24
7
25
3
30
1
28
26
4
30
29
2
12
2
204
19
Highest AQI (US) recorded in
August48AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202534AQI (US)
27
4
28
31
30
31
28
2
31
31
29
1
20
11
23
7
18
13
327
38
Highest AQI (US) recorded in
October44AQI (US)
Lowest AQI (US) recorded in
July23AQI (US)
202431AQI (US)
25
22
30
29
1
28
3
26
3
27
4
30
1
30
30
1
27
3
21
10
325
26
Highest AQI (US) recorded in
December45AQI (US)
Lowest AQI (US) recorded in
January24AQI (US)
202331AQI (US)
30
27
1
31
30
31
29
1
30
1
26
4
25
4
1
31
27
2
27
4
344
17
1
Highest AQI (US) recorded in
February37AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202236AQI (US)
19
10
18
3
31
16
1
27
4
28
2
19
2
3
24
5
30
1
27
3
22
9
264
40
Highest AQI (US) recorded in
January45AQI (US)
Lowest AQI (US) recorded in
July28AQI (US)
202135AQI (US)
25
4
26
2
29
26
4
26
4
27
3
30
1
21
10
21
9
30
1
24
6
23
6
308
50
Highest AQI (US) recorded in
September42AQI (US)
Lowest AQI (US) recorded in
October28AQI (US)
202044AQI (US)
13
19
1
18
26
4
29
2
21
7
3
11
14
4
1
18
10
1
1
22
6
21
10
198
54
4
5
1
Highest AQI (US) recorded in
September75AQI (US)
Lowest AQI (US) recorded in
April29AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2020(Avg.)
44AQI (US)Least Polluted Year Recorded
2023(Avg.)
31AQI (US)San Leandro's annual 2026 AQI (US) (35) shows an average percentage change of 0.9% (worsened AQI (US)) compared to previous years: 2020 (44), 2021 (35), 2022 (36), 2023 (31), 2024 (31), 2025 (34).
