Hayward, 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
Hayward, California, United States
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
3rd Aug 2026
59AQILowest AQI recorded on
17th Aug 2025
21AQISame Day Analysis (16th August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 44 of Good air quality on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
Hayward, California, United States
AQI
Day
Night
.
6 AM15th Aug 2026
8 PM
5 AM16th Aug 2026
Day time
Avg. Highest Time
8PM15th Aug
56AQI
Avg. Lowest Time
11AM15th Aug
21AQI
Night time
Avg. Highest Time
9PM15th Aug
58AQI
Avg. Lowest Time
1AM16th Aug
36AQI
In the last 24 hours,
Hayward's AQI reached its highest point of 58 at 9 PM during the Night, while the lowest point, 21, was recorded at 11 AM during the Day between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Hayward, 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 2026426 AMAQI
18th Jul 2026427 AMAQI
18th Jul 2026488 AMAQI
18th Jul 2026569 AMAQI
18th Jul 20266010 AMAQI
18th Jul 20265611 AMAQI
18th Jul 20267412 PMAQI
18th Jul 2026801 PMAQI
18th Jul 2026782 PMAQI
18th Jul 2026583 PMAQI
18th Jul 2026574 PMAQI
18th Jul 2026505 PMAQI
18th Jul 2026466 PMAQI
18th Jul 2026467 PMAQI
18th Jul 2026468 PMAQI
18th Jul 2026509 PMAQI
18th Jul 20263610 PMAQI
18th Jul 20265011 PMAQI
19th Jul 20263612 AMAQI
19th Jul 2026481 AMAQI
19th Jul 2026292 AMAQI
19th Jul 2026383 AMAQI
19th Jul 2026494 AMAQI
19th Jul 2026585 AMAQI
17°C13/25°C
19th Jul 2026476 AMAQI
19th Jul 2026407 AMAQI
19th Jul 2026388 AMAQI
19th Jul 2026449 AMAQI
19th Jul 20264010 AMAQI
19th Jul 20264411 AMAQI
19th Jul 20264212 PMAQI
19th Jul 2026461 PMAQI
19th Jul 2026442 PMAQI
19th Jul 2026383 PMAQI
19th Jul 2026424 PMAQI
19th Jul 2026325 PMAQI
19th Jul 2026456 PMAQI
19th Jul 2026367 PMAQI
19th Jul 2026248 PMAQI
19th Jul 2026349 PMAQI
19th Jul 20265010 PMAQI
19th Jul 20264211 PMAQI
20th Jul 20263612 AMAQI
20th Jul 2026401 AMAQI
20th Jul 2026362 AMAQI
20th Jul 2026253 AMAQI
20th Jul 2026254 AMAQI
20th Jul 2026505 AMAQI
17°C13/26°C
20th Jul 2026446 AMAQI
20th Jul 2026487 AMAQI
20th Jul 2026398 AMAQI
20th Jul 2026429 AMAQI
20th Jul 20263210 AMAQI
20th Jul 20265011 AMAQI
20th Jul 20265612 PMAQI
20th Jul 2026571 PMAQI
20th Jul 2026502 PMAQI
20th Jul 2026423 PMAQI
20th Jul 2026464 PMAQI
20th Jul 2026385 PMAQI
20th Jul 2026346 PMAQI
20th Jul 2026427 PMAQI
20th Jul 2026489 PMAQI
20th Jul 20264610 PMAQI
20th Jul 20262211 PMAQI
21st Jul 20262212 AMAQI
21st Jul 2026341 AMAQI
21st Jul 2026462 AMAQI
21st Jul 2026523 AMAQI
21st Jul 2026184 AMAQI
21st Jul 2026205 AMAQI
19°C13/28°C
21st Jul 2026426 AMAQI
21st Jul 2026447 AMAQI
21st Jul 2026398 AMAQI
21st Jul 2026509 AMAQI
21st Jul 20265610 AMAQI
21st Jul 20263211 AMAQI
21st Jul 20264412 PMAQI
21st Jul 2026481 PMAQI
21st Jul 2026462 PMAQI
21st Jul 2026503 PMAQI
21st Jul 2026504 PMAQI
21st Jul 2026405 PMAQI
21st Jul 2026346 PMAQI
21st Jul 2026427 PMAQI
21st Jul 2026478 PMAQI
21st Jul 2026579 PMAQI
21st Jul 20267110 PMAQI
21st Jul 20266411 PMAQI
22nd Jul 20265212 AMAQI
22nd Jul 2026461 AMAQI
22nd Jul 2026462 AMAQI
22nd Jul 2026503 AMAQI
22nd Jul 2026464 AMAQI
22nd Jul 2026245 AMAQI
25°C17/35°C
22nd Jul 2026426 AMAQI
22nd Jul 2026367 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 2026252 PMAQI
22nd Jul 2026463 PMAQI
22nd Jul 2026504 PMAQI
22nd Jul 2026315 PMAQI
22nd Jul 2026406 PMAQI
22nd Jul 2026707 PMAQI
22nd Jul 2026548 PMAQI
22nd Jul 2026529 PMAQI
22nd Jul 20265010 PMAQI
22nd Jul 20261811 PMAQI
23rd Jul 20261912 AMAQI
23rd Jul 2026241 AMAQI
23rd Jul 2026202 AMAQI
23rd Jul 2026423 AMAQI
23rd Jul 2026194 AMAQI
23rd Jul 2026245 AMAQI
20°C16/25°C
23rd Jul 2026226 AMAQI
23rd Jul 2026247 AMAQI
23rd Jul 2026658 AMAQI
23rd Jul 2026569 AMAQI
23rd Jul 20265210 AMAQI
23rd Jul 20261911 AMAQI
23rd Jul 20261812 PMAQI
23rd Jul 2026461 PMAQI
23rd Jul 2026742 PMAQI
23rd Jul 2026463 PMAQI
23rd Jul 2026384 PMAQI
23rd Jul 2026445 PMAQI
23rd Jul 2026326 PMAQI
23rd Jul 2026277 PMAQI
23rd Jul 2026238 PMAQI
23rd Jul 2026519 PMAQI
23rd Jul 20265410 PMAQI
23rd Jul 20265211 PMAQI
24th Jul 20263212 AMAQI
24th Jul 2026381 AMAQI
24th Jul 2026582 AMAQI
24th Jul 2026523 AMAQI
24th Jul 2026464 AMAQI
24th Jul 2026665 AMAQI
17°C15/22°C
24th Jul 2026486 AMAQI
24th Jul 2026447 AMAQI
24th Jul 2026648 AMAQI
24th Jul 2026529 AMAQI
24th Jul 20265010 AMAQI
24th Jul 20265011 AMAQI
24th Jul 20265012 PMAQI
24th Jul 2026291 PMAQI
24th Jul 2026382 PMAQI
24th Jul 2026523 PMAQI
24th Jul 2026384 PMAQI
24th Jul 2026365 PMAQI
24th Jul 2026426 PMAQI
24th Jul 2026427 PMAQI
24th Jul 2026528 PMAQI
24th Jul 2026539 PMAQI
24th Jul 20265010 PMAQI
24th Jul 20264611 PMAQI
25th Jul 20264612 AMAQI
25th Jul 2026511 AMAQI
25th Jul 2026462 AMAQI
25th Jul 2026503 AMAQI
25th Jul 2026464 AMAQI
25th Jul 2026565 AMAQI
18°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 20264911 AMAQI
25th Jul 20263212 PMAQI
25th Jul 2026441 PMAQI
25th Jul 2026442 PMAQI
25th Jul 2026443 PMAQI
25th Jul 2026424 PMAQI
25th Jul 2026405 PMAQI
25th Jul 2026446 PMAQI
25th Jul 2026267 PMAQI
25th Jul 2026368 PMAQI
25th Jul 2026529 PMAQI
25th Jul 20263410 PMAQI
25th Jul 20262311 PMAQI
26th Jul 20264212 AMAQI
26th Jul 2026361 AMAQI
26th Jul 2026462 AMAQI
26th Jul 2026503 AMAQI
26th Jul 2026274 AMAQI
26th Jul 2026465 AMAQI
18°C14/26°C
26th Jul 2026426 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 2026361 PMAQI
26th Jul 2026402 PMAQI
26th Jul 2026503 PMAQI
26th Jul 2026384 PMAQI
26th Jul 2026365 PMAQI
26th Jul 2026446 PMAQI
26th Jul 2026407 PMAQI
26th Jul 2026388 PMAQI
26th Jul 2026569 PMAQI
26th Jul 20263810 PMAQI
26th Jul 20265211 PMAQI
27th Jul 20263412 AMAQI
27th Jul 2026341 AMAQI
27th Jul 2026462 AMAQI
27th Jul 2026383 AMAQI
27th Jul 2026424 AMAQI
27th Jul 2026365 AMAQI
17°C14/22°C
27th Jul 2026206 AMAQI
27th Jul 2026427 AMAQI
27th Jul 2026468 AMAQI
27th Jul 2026469 AMAQI
27th Jul 20265010 AMAQI
27th Jul 20265411 AMAQI
27th Jul 20265412 PMAQI
27th Jul 2026571 PMAQI
27th Jul 2026462 PMAQI
27th Jul 2026523 PMAQI
27th Jul 2026374 PMAQI
27th Jul 2026305 PMAQI
27th Jul 2026426 PMAQI
27th Jul 2026557 PMAQI
27th Jul 2026408 PMAQI
27th Jul 2026329 PMAQI
27th Jul 20263110 PMAQI
27th Jul 20264211 PMAQI
28th Jul 20264612 AMAQI
28th Jul 2026341 AMAQI
28th Jul 2026462 AMAQI
28th Jul 2026343 AMAQI
28th Jul 2026404 AMAQI
28th Jul 2026465 AMAQI
17°C14/23°C
28th Jul 2026346 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026448 AMAQI
28th Jul 2026469 AMAQI
28th Jul 20265810 AMAQI
28th Jul 20266011 AMAQI
28th Jul 20265112 PMAQI
28th Jul 2026461 PMAQI
28th Jul 2026442 PMAQI
28th Jul 2026463 PMAQI
28th Jul 2026404 PMAQI
28th Jul 2026405 PMAQI
28th Jul 2026426 PMAQI
28th Jul 2026497 PMAQI
28th Jul 2026538 PMAQI
28th Jul 2026469 PMAQI
28th Jul 20264410 PMAQI
28th Jul 20265011 PMAQI
29th Jul 20264612 AMAQI
29th Jul 2026221 AMAQI
29th Jul 2026302 AMAQI
29th Jul 2026493 AMAQI
29th Jul 2026364 AMAQI
29th Jul 2026485 AMAQI
18°C13/27°C
29th Jul 2026326 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026388 AMAQI
29th Jul 2026509 AMAQI
29th Jul 20262910 AMAQI
29th Jul 20263811 AMAQI
29th Jul 20265112 PMAQI
29th Jul 2026521 PMAQI
29th Jul 2026502 PMAQI
29th Jul 2026493 PMAQI
29th Jul 2026384 PMAQI
29th Jul 2026235 PMAQI
29th Jul 2026346 PMAQI
29th Jul 2026507 PMAQI
29th Jul 2026368 PMAQI
29th Jul 2026429 PMAQI
29th Jul 20264410 PMAQI
29th Jul 20264211 PMAQI
30th Jul 20264412 AMAQI
30th Jul 2026441 AMAQI
30th Jul 2026442 AMAQI
30th Jul 2026423 AMAQI
30th Jul 2026484 AMAQI
30th Jul 2026445 AMAQI
18°C14/26°C
30th Jul 2026426 AMAQI
30th Jul 2026427 AMAQI
30th Jul 2026428 AMAQI
30th Jul 2026489 AMAQI
30th Jul 20264410 AMAQI
30th Jul 20264211 AMAQI
30th Jul 20264412 PMAQI
30th Jul 2026441 PMAQI
30th Jul 2026462 PMAQI
30th Jul 2026523 PMAQI
30th Jul 2026524 PMAQI
30th Jul 2026535 PMAQI
30th Jul 2026466 PMAQI
30th Jul 2026407 PMAQI
30th Jul 2026428 PMAQI
30th Jul 2026409 PMAQI
30th Jul 20264210 PMAQI
30th Jul 20264811 PMAQI
31st Jul 20264812 AMAQI
31st Jul 2026441 AMAQI
31st Jul 2026462 AMAQI
31st Jul 2026463 AMAQI
31st Jul 2026444 AMAQI
31st Jul 2026445 AMAQI
18°C13/24°C
31st Jul 2026536 AMAQI
31st Jul 2026477 AMAQI
31st Jul 2026508 AMAQI
31st Jul 2026489 AMAQI
31st Jul 20264610 AMAQI
31st Jul 20264611 AMAQI
31st Jul 20264812 PMAQI
31st Jul 2026501 PMAQI
31st Jul 2026522 PMAQI
31st Jul 2026523 PMAQI
31st Jul 2026524 PMAQI
31st Jul 2026545 PMAQI
31st Jul 2026556 PMAQI
31st Jul 2026507 PMAQI
31st Jul 2026488 PMAQI
31st Jul 2026469 PMAQI
31st Jul 20264810 PMAQI
31st Jul 20264811 PMAQI
1st Aug 20264912 AMAQI
1st Aug 2026421 AMAQI
1st Aug 2026442 AMAQI
1st Aug 2026463 AMAQI
1st Aug 2026464 AMAQI
1st Aug 2026465 AMAQI
18°C13/29°C
1st Aug 2026386 AMAQI
1st Aug 2026367 AMAQI
1st Aug 2026468 AMAQI
1st Aug 2026529 AMAQI
1st Aug 20264610 AMAQI
1st Aug 20264411 AMAQI
1st Aug 20264812 PMAQI
1st Aug 2026541 PMAQI
1st Aug 2026532 PMAQI
1st Aug 2026443 PMAQI
1st Aug 2026464 PMAQI
1st Aug 2026515 PMAQI
1st Aug 2026486 PMAQI
1st Aug 2026447 PMAQI
1st Aug 2026428 PMAQI
1st Aug 2026449 PMAQI
1st Aug 20264810 PMAQI
1st Aug 20265111 PMAQI
2nd Aug 20264812 AMAQI
2nd Aug 2026461 AMAQI
2nd Aug 2026402 AMAQI
2nd Aug 2026463 AMAQI
2nd Aug 2026364 AMAQI
2nd Aug 2026445 AMAQI
21°C14/31°C
2nd Aug 2026426 AMAQI
2nd Aug 2026407 AMAQI
2nd Aug 2026408 AMAQI
2nd Aug 2026469 AMAQI
2nd Aug 20265110 AMAQI
2nd Aug 20265011 AMAQI
2nd Aug 20265212 PMAQI
2nd Aug 2026521 PMAQI
2nd Aug 2026532 PMAQI
2nd Aug 2026573 PMAQI
2nd Aug 2026544 PMAQI
2nd Aug 2026565 PMAQI
2nd Aug 2026546 PMAQI
2nd Aug 2026557 PMAQI
2nd Aug 2026608 PMAQI
2nd Aug 2026539 PMAQI
2nd Aug 20265710 PMAQI
2nd Aug 20265411 PMAQI
3rd Aug 20265712 AMAQI
3rd Aug 2026581 AMAQI
3rd Aug 2026572 AMAQI
3rd Aug 2026573 AMAQI
3rd Aug 2026584 AMAQI
3rd Aug 2026565 AMAQI
22°C15/33°C
3rd Aug 2026546 AMAQI
3rd Aug 2026547 AMAQI
3rd Aug 2026568 AMAQI
3rd Aug 2026589 AMAQI
3rd Aug 20265710 AMAQI
3rd Aug 20266211 AMAQI
3rd Aug 20265912 PMAQI
3rd Aug 2026641 PMAQI
3rd Aug 2026662 PMAQI
3rd Aug 2026673 PMAQI
3rd Aug 2026654 PMAQI
3rd Aug 2026645 PMAQI
3rd Aug 2026626 PMAQI
3rd Aug 2026577 PMAQI
3rd Aug 2026568 PMAQI
3rd Aug 2026559 PMAQI
3rd Aug 20265710 PMAQI
3rd Aug 20265611 PMAQI
4th Aug 20265812 AMAQI
4th Aug 2026581 AMAQI
4th Aug 2026562 AMAQI
4th Aug 2026543 AMAQI
4th Aug 2026484 AMAQI
4th Aug 2026515 AMAQI
22°C14/34°C
4th Aug 2026546 AMAQI
4th Aug 2026547 AMAQI
4th Aug 2026508 AMAQI
4th Aug 2026489 AMAQI
4th Aug 20265410 AMAQI
4th Aug 20264811 AMAQI
4th Aug 20265012 PMAQI
4th Aug 2026551 PMAQI
4th Aug 2026512 PMAQI
4th Aug 2026513 PMAQI
4th Aug 2026514 PMAQI
4th Aug 2026465 PMAQI
4th Aug 2026506 PMAQI
4th Aug 2026517 PMAQI
4th Aug 2026508 PMAQI
4th Aug 2026529 PMAQI
4th Aug 20264410 PMAQI
4th Aug 20265011 PMAQI
5th Aug 20264612 AMAQI
5th Aug 2026481 AMAQI
5th Aug 2026462 AMAQI
5th Aug 2026483 AMAQI
5th Aug 2026424 AMAQI
5th Aug 2026425 AMAQI
19°C13/30°C
5th Aug 2026406 AMAQI
5th Aug 2026447 AMAQI
5th Aug 2026428 AMAQI
5th Aug 2026449 AMAQI
5th Aug 20264210 AMAQI
5th Aug 20264411 AMAQI
5th Aug 20264612 PMAQI
5th Aug 2026461 PMAQI
5th Aug 2026512 PMAQI
5th Aug 2026493 PMAQI
5th Aug 2026464 PMAQI
5th Aug 2026495 PMAQI
5th Aug 2026516 PMAQI
5th Aug 2026427 PMAQI
5th Aug 2026448 PMAQI
5th Aug 2026449 PMAQI
5th Aug 20264710 PMAQI
5th Aug 20265011 PMAQI
6th Aug 20264612 AMAQI
6th Aug 2026461 AMAQI
6th Aug 2026442 AMAQI
6th Aug 2026443 AMAQI
6th Aug 2026424 AMAQI
6th Aug 2026495 AMAQI
18°C14/28°C
6th Aug 2026446 AMAQI
6th Aug 2026427 AMAQI
6th Aug 2026408 AMAQI
6th Aug 2026479 AMAQI
6th Aug 20265210 AMAQI
6th Aug 20265011 AMAQI
6th Aug 20266012 PMAQI
6th Aug 2026581 PMAQI
6th Aug 2026562 PMAQI
6th Aug 2026583 PMAQI
6th Aug 2026534 PMAQI
6th Aug 2026485 PMAQI
6th Aug 2026466 PMAQI
6th Aug 2026467 PMAQI
6th Aug 2026448 PMAQI
6th Aug 2026479 PMAQI
6th Aug 20264410 PMAQI
6th Aug 20264611 PMAQI
7th Aug 20263812 AMAQI
7th Aug 2026481 AMAQI
7th Aug 2026382 AMAQI
7th Aug 2026463 AMAQI
7th Aug 2026374 AMAQI
7th Aug 2026465 AMAQI
18°C14/26°C
7th Aug 2026376 AMAQI
7th Aug 2026367 AMAQI
7th Aug 2026268 AMAQI
7th Aug 2026369 AMAQI
7th Aug 20264210 AMAQI
7th Aug 20264011 AMAQI
7th Aug 20264612 PMAQI
7th Aug 2026521 PMAQI
7th Aug 2026522 PMAQI
7th Aug 2026573 PMAQI
7th Aug 2026574 PMAQI
7th Aug 2026515 PMAQI
7th Aug 2026506 PMAQI
7th Aug 2026487 PMAQI
7th Aug 2026518 PMAQI
7th Aug 2026499 PMAQI
7th Aug 20264410 PMAQI
7th Aug 20264811 PMAQI
8th Aug 20265012 AMAQI
8th Aug 2026421 AMAQI
8th Aug 2026402 AMAQI
8th Aug 2026443 AMAQI
8th Aug 2026464 AMAQI
8th Aug 2026445 AMAQI
17°C13/24°C
8th Aug 2026466 AMAQI
8th Aug 2026537 AMAQI
8th Aug 2026518 AMAQI
8th Aug 2026489 AMAQI
8th Aug 20265510 AMAQI
8th Aug 20265611 AMAQI
8th Aug 20265612 PMAQI
8th Aug 2026541 PMAQI
8th Aug 2026512 PMAQI
8th Aug 2026523 PMAQI
8th Aug 2026514 PMAQI
8th Aug 2026495 PMAQI
8th Aug 2026496 PMAQI
8th Aug 2026497 PMAQI
8th Aug 2026498 PMAQI
8th Aug 2026529 PMAQI
8th Aug 20265310 PMAQI
8th Aug 20264411 PMAQI
9th Aug 20264612 AMAQI
9th Aug 2026421 AMAQI
9th Aug 2026442 AMAQI
9th Aug 2026423 AMAQI
9th Aug 2026444 AMAQI
9th Aug 2026505 AMAQI
17°C14/24°C
9th Aug 2026506 AMAQI
9th Aug 2026507 AMAQI
9th Aug 2026518 AMAQI
9th Aug 2026469 AMAQI
9th Aug 20264610 AMAQI
9th Aug 20264411 AMAQI
9th Aug 20264612 PMAQI
9th Aug 2026501 PMAQI
9th Aug 2026512 PMAQI
9th Aug 2026523 PMAQI
9th Aug 2026574 PMAQI
9th Aug 2026535 PMAQI
9th Aug 2026516 PMAQI
9th Aug 2026527 PMAQI
9th Aug 2026508 PMAQI
9th Aug 2026489 PMAQI
9th Aug 20264610 PMAQI
9th Aug 20265111 PMAQI
10th Aug 20265312 AMAQI
10th Aug 2026491 AMAQI
10th Aug 2026492 AMAQI
10th Aug 2026513 AMAQI
10th Aug 2026504 AMAQI
10th Aug 2026445 AMAQI
19°C14/26°C
10th Aug 2026466 AMAQI
10th Aug 2026467 AMAQI
10th Aug 2026478 AMAQI
10th Aug 2026539 AMAQI
10th Aug 20265110 AMAQI
10th Aug 20265111 AMAQI
10th Aug 20265312 PMAQI
10th Aug 2026521 PMAQI
10th Aug 2026572 PMAQI
10th Aug 2026523 PMAQI
10th Aug 2026534 PMAQI
10th Aug 2026545 PMAQI
10th Aug 2026526 PMAQI
10th Aug 2026527 PMAQI
10th Aug 2026538 PMAQI
10th Aug 2026549 PMAQI
10th Aug 20265110 PMAQI
10th Aug 20265311 PMAQI
11th Aug 20265212 AMAQI
11th Aug 2026511 AMAQI
11th Aug 2026512 AMAQI
11th Aug 2026483 AMAQI
11th Aug 2026514 AMAQI
11th Aug 2026465 AMAQI
18°C13/26°C
11th Aug 2026496 AMAQI
11th Aug 2026507 AMAQI
11th Aug 2026448 AMAQI
11th Aug 2026469 AMAQI
11th Aug 20265010 AMAQI
11th Aug 20264711 AMAQI
11th Aug 20265112 PMAQI
11th Aug 2026551 PMAQI
11th Aug 2026542 PMAQI
11th Aug 2026573 PMAQI
11th Aug 2026604 PMAQI
11th Aug 2026585 PMAQI
11th Aug 2026546 PMAQI
11th Aug 2026497 PMAQI
11th Aug 2026508 PMAQI
11th Aug 2026429 PMAQI
11th Aug 20263810 PMAQI
11th Aug 20264211 PMAQI
12th Aug 20262512 AMAQI
12th Aug 2026521 AMAQI
12th Aug 2026342 AMAQI
12th Aug 2026303 AMAQI
12th Aug 2026464 AMAQI
12th Aug 2026255 AMAQI
18°C13/26°C
12th Aug 2026286 AMAQI
12th Aug 2026357 AMAQI
12th Aug 2026248 AMAQI
12th Aug 2026349 AMAQI
12th Aug 20264610 AMAQI
12th Aug 20264611 AMAQI
12th Aug 20265812 PMAQI
12th Aug 2026581 PMAQI
12th Aug 2026512 PMAQI
12th Aug 2026553 PMAQI
12th Aug 2026534 PMAQI
12th Aug 2026555 PMAQI
12th Aug 2026526 PMAQI
12th Aug 2026467 PMAQI
12th Aug 2026428 PMAQI
12th Aug 2026329 PMAQI
12th Aug 20264510 PMAQI
12th Aug 20264011 PMAQI
13th Aug 20262912 AMAQI
13th Aug 2026541 AMAQI
13th Aug 2026642 AMAQI
13th Aug 2026403 AMAQI
13th Aug 2026484 AMAQI
13th Aug 2026545 AMAQI
18°C13/27°C
13th Aug 2026556 AMAQI
13th Aug 2026407 AMAQI
13th Aug 2026528 AMAQI
13th Aug 2026489 AMAQI
13th Aug 20263710 AMAQI
13th Aug 20263811 AMAQI
13th Aug 20263212 PMAQI
13th Aug 2026381 PMAQI
13th Aug 2026382 PMAQI
13th Aug 2026563 PMAQI
13th Aug 2026344 PMAQI
13th Aug 2026235 PMAQI
13th Aug 2026336 PMAQI
13th Aug 2026537 PMAQI
13th Aug 2026548 PMAQI
13th Aug 2026609 PMAQI
13th Aug 20266610 PMAQI
13th Aug 20266411 PMAQI
14th Aug 20265612 AMAQI
14th Aug 2026511 AMAQI
14th Aug 2026342 AMAQI
14th Aug 2026343 AMAQI
14th Aug 2026544 AMAQI
14th Aug 2026395 AMAQI
17°C13/24°C
14th Aug 2026426 AMAQI
14th Aug 2026287 AMAQI
14th Aug 2026388 AMAQI
14th Aug 2026329 AMAQI
14th Aug 20263310 AMAQI
14th Aug 20263111 AMAQI
14th Aug 20264712 PMAQI
14th Aug 2026421 PMAQI
14th Aug 2026462 PMAQI
14th Aug 2026463 PMAQI
14th Aug 2026364 PMAQI
14th Aug 2026355 PMAQI
14th Aug 2026466 PMAQI
14th Aug 2026507 PMAQI
14th Aug 2026468 PMAQI
14th Aug 2026469 PMAQI
14th Aug 20264610 PMAQI
14th Aug 20264211 PMAQI
15th Aug 20264212 AMAQI
15th Aug 2026441 AMAQI
15th Aug 2026462 AMAQI
15th Aug 2026523 AMAQI
15th Aug 2026424 AMAQI
15th Aug 2026545 AMAQI
17°C15/22°C
15th Aug 2026466 AMAQI
15th Aug 2026217 AMAQI
15th Aug 2026248 AMAQI
15th Aug 2026259 AMAQI
15th Aug 20262310 AMAQI
15th Aug 20262111 AMAQI
15th Aug 20262212 PMAQI
15th Aug 2026251 PMAQI
15th Aug 2026522 PMAQI
15th Aug 2026503 PMAQI
15th Aug 2026464 PMAQI
15th Aug 2026465 PMAQI
15th Aug 2026426 PMAQI
15th Aug 2026547 PMAQI
15th Aug 2026568 PMAQI
15th Aug 2026589 PMAQI
15th Aug 20264610 PMAQI
15th Aug 20264611 PMAQI
16th Aug 20264612 AMAQI
16th Aug 2026361 AMAQI
16th Aug 2026402 AMAQI
16th Aug 2026423 AMAQI
16th Aug 2026464 AMAQI
16th Aug 2026375 AMAQI
18°C14/24°C
16th Aug 2026426 AMAQI
6 AM16th Aug 2026447 AMAQI
16th Aug 2026358 AMAQI
16th Aug 2026509 AMAQI
16th Aug 20264210 AMAQI
16th Aug 20263011 AMAQI
16th Aug 20262612 PMAQI
16th Aug 2026541 PMAQI
1 PM16th Aug 2026382 PMAQI
16th Aug 2026563 PMAQI
16th Aug 2026424 PMAQI
16th Aug 2026545 PMAQI
16th Aug 2026546 PMAQI
16th Aug 2026547 PMAQI
16th Aug 2026548 PMAQI
8 PM16th Aug 2026549 PMAQI
16th Aug 20264610 PMAQI
16th Aug 20263411 PMAQI
1 AM
5 AM
17°C12/28°C
Day time
Avg. Highest Time
1 PM - 3 PM
50AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
7 AM
40AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 3 PM (Avg. 50), while the lowest AQI was between 7 AM to 7 AM (Avg. 40).
Night time
Avg. Highest Time
9 PM - 11 PM
47AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
12 AM
42AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 47), while the lowest AQI was between 12 AM to 12 AM (Avg. 42).
2026 Days Vs Air Quality
Hayward, California, United States
2026
90%
203
10%
22
Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)
Good
203 DaysModerate
22 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2026, 90% of 229 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
Hayward, 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
23AQI (US)
23AQI (US)
2nd January 2026
14AQI (US)
14AQI (US)
3rd January 2026
17AQI (US)
17AQI (US)
4th January 2026
19AQI (US)
19AQI (US)
5th January 2026
20AQI (US)
20AQI (US)
6th January 2026
13AQI (US)
13AQI (US)
7th January 2026
18AQI (US)
18AQI (US)
8th January 2026
15AQI (US)
15AQI (US)
9th January 2026
19AQI (US)
19AQI (US)
10th January 2026
36AQI (US)
36AQI (US)
11th January 2026
38AQI (US)
38AQI (US)
12th January 2026
41AQI (US)
41AQI (US)
13th January 2026
51AQI (US)
51AQI (US)
14th January 2026
52AQI (US)
52AQI (US)
15th January 2026
54AQI (US)
54AQI (US)
16th January 2026
35AQI (US)
35AQI (US)
17th January 2026
49AQI (US)
49AQI (US)
18th January 2026
56AQI (US)
56AQI (US)
19th January 2026
41AQI (US)
41AQI (US)
20th January 2026
41AQI (US)
41AQI (US)
21st January 2026
49AQI (US)
49AQI (US)
22nd January 2026
53AQI (US)
53AQI (US)
23rd January 2026
55AQI (US)
55AQI (US)
24th January 2026
47AQI (US)
47AQI (US)
25th January 2026
51AQI (US)
51AQI (US)
26th January 2026
48AQI (US)
48AQI (US)
27th January 2026
38AQI (US)
38AQI (US)
28th January 2026
45AQI (US)
45AQI (US)
29th January 2026
54AQI (US)
54AQI (US)
30th January 2026
59AQI (US)
59AQI (US)
31st January 2026
41AQI (US)
41AQI (US)
1st February 2026
52AQI (US)
52AQI (US)
2nd February 2026
51AQI (US)
51AQI (US)
3rd February 2026
49AQI (US)
49AQI (US)
4th February 2026
44AQI (US)
44AQI (US)
5th February 2026
49AQI (US)
49AQI (US)
6th February 2026
44AQI (US)
44AQI (US)
7th February 2026
38AQI (US)
38AQI (US)
8th February 2026
43AQI (US)
43AQI (US)
9th February 2026
46AQI (US)
46AQI (US)
10th February 2026
45AQI (US)
45AQI (US)
11th February 2026
40AQI (US)
40AQI (US)
12th February 2026
40AQI (US)
40AQI (US)
13th February 2026
48AQI (US)
48AQI (US)
14th February 2026
51AQI (US)
51AQI (US)
15th February 2026
43AQI (US)
43AQI (US)
16th February 2026
46AQI (US)
46AQI (US)
17th February 2026
50AQI (US)
50AQI (US)
18th February 2026
42AQI (US)
42AQI (US)
19th February 2026
44AQI (US)
44AQI (US)
20th February 2026
39AQI (US)
39AQI (US)
21st February 2026
34AQI (US)
34AQI (US)
22nd February 2026
36AQI (US)
36AQI (US)
23rd February 2026
41AQI (US)
41AQI (US)
24th February 2026
46AQI (US)
46AQI (US)
25th February 2026
43AQI (US)
43AQI (US)
26th February 2026
34AQI (US)
34AQI (US)
27th February 2026
34AQI (US)
34AQI (US)
28th February 2026
33AQI (US)
33AQI (US)
1st March 2026
37AQI (US)
37AQI (US)
2nd March 2026
55AQI (US)
55AQI (US)
3rd March 2026
43AQI (US)
43AQI (US)
4th March 2026
46AQI (US)
46AQI (US)
5th March 2026
35AQI (US)
35AQI (US)
6th March 2026
30AQI (US)
30AQI (US)
7th March 2026
35AQI (US)
35AQI (US)
8th March 2026
35AQI (US)
35AQI (US)
9th March 2026
34AQI (US)
34AQI (US)
10th March 2026
34AQI (US)
34AQI (US)
11th March 2026
39AQI (US)
39AQI (US)
12th March 2026
37AQI (US)
37AQI (US)
13th March 2026
40AQI (US)
40AQI (US)
14th March 2026
33AQI (US)
33AQI (US)
15th March 2026
31AQI (US)
31AQI (US)
16th March 2026
36AQI (US)
36AQI (US)
17th March 2026
32AQI (US)
32AQI (US)
18th March 2026
30AQI (US)
30AQI (US)
19th March 2026
34AQI (US)
34AQI (US)
20th March 2026
45AQI (US)
45AQI (US)
21st March 2026
35AQI (US)
35AQI (US)
22nd March 2026
33AQI (US)
33AQI (US)
23rd March 2026
38AQI (US)
38AQI (US)
24th March 2026
36AQI (US)
36AQI (US)
25th March 2026
30AQI (US)
30AQI (US)
26th March 2026
28AQI (US)
28AQI (US)
27th March 2026
30AQI (US)
30AQI (US)
28th March 2026
29AQI (US)
29AQI (US)
29th March 2026
25AQI (US)
25AQI (US)
30th March 2026
25AQI (US)
25AQI (US)
31st March 2026
25AQI (US)
25AQI (US)
1st April 2026
30AQI (US)
30AQI (US)
2nd April 2026
30AQI (US)
30AQI (US)
3rd April 2026
26AQI (US)
26AQI (US)
4th April 2026
30AQI (US)
30AQI (US)
5th April 2026
28AQI (US)
28AQI (US)
6th April 2026
31AQI (US)
31AQI (US)
7th April 2026
27AQI (US)
27AQI (US)
8th April 2026
38AQI (US)
38AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
34AQI (US)
34AQI (US)
11th April 2026
32AQI (US)
32AQI (US)
12th April 2026
26AQI (US)
26AQI (US)
13th April 2026
30AQI (US)
30AQI (US)
14th April 2026
33AQI (US)
33AQI (US)
15th April 2026
31AQI (US)
31AQI (US)
16th April 2026
29AQI (US)
29AQI (US)
17th April 2026
18th April 2026
31AQI (US)
31AQI (US)
19th April 2026
32AQI (US)
32AQI (US)
20th April 2026
27AQI (US)
27AQI (US)
21st April 2026
27AQI (US)
27AQI (US)
22nd April 2026
23rd April 2026
24AQI (US)
24AQI (US)
24th April 2026
25AQI (US)
25AQI (US)
25th April 2026
27AQI (US)
27AQI (US)
26th April 2026
34AQI (US)
34AQI (US)
27th April 2026
27AQI (US)
27AQI (US)
28th April 2026
26AQI (US)
26AQI (US)
29th April 2026
26AQI (US)
26AQI (US)
30th April 2026
27AQI (US)
27AQI (US)
1st May 2026
26AQI (US)
26AQI (US)
2nd May 2026
22AQI (US)
22AQI (US)
3rd May 2026
23AQI (US)
23AQI (US)
4th May 2026
35AQI (US)
35AQI (US)
5th May 2026
38AQI (US)
38AQI (US)
6th May 2026
32AQI (US)
32AQI (US)
7th May 2026
29AQI (US)
29AQI (US)
8th May 2026
29AQI (US)
29AQI (US)
9th May 2026
10th May 2026
31AQI (US)
31AQI (US)
11th May 2026
32AQI (US)
32AQI (US)
12th May 2026
30AQI (US)
30AQI (US)
13th May 2026
28AQI (US)
28AQI (US)
14th May 2026
27AQI (US)
27AQI (US)
15th May 2026
48AQI (US)
48AQI (US)
16th May 2026
51AQI (US)
51AQI (US)
17th May 2026
57AQI (US)
57AQI (US)
18th May 2026
56AQI (US)
56AQI (US)
19th May 2026
55AQI (US)
55AQI (US)
20th May 2026
52AQI (US)
52AQI (US)
21st May 2026
41AQI (US)
41AQI (US)
22nd May 2026
49AQI (US)
49AQI (US)
23rd May 2026
49AQI (US)
49AQI (US)
24th May 2026
46AQI (US)
46AQI (US)
25th May 2026
44AQI (US)
44AQI (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
29AQI (US)
29AQI (US)
1st June 2026
32AQI (US)
32AQI (US)
2nd June 2026
31AQI (US)
31AQI (US)
3rd June 2026
30AQI (US)
30AQI (US)
4th June 2026
26AQI (US)
26AQI (US)
5th June 2026
28AQI (US)
28AQI (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
28AQI (US)
28AQI (US)
17th June 2026
28AQI (US)
28AQI (US)
18th June 2026
27AQI (US)
27AQI (US)
19th June 2026
25AQI (US)
25AQI (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
25AQI (US)
25AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
25AQI (US)
25AQI (US)
26th June 2026
27AQI (US)
27AQI (US)
27th June 2026
30AQI (US)
30AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
25AQI (US)
25AQI (US)
30th June 2026
26AQI (US)
26AQI (US)
1st July 2026
27AQI (US)
27AQI (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
23AQI (US)
23AQI (US)
6th July 2026
28AQI (US)
28AQI (US)
7th July 2026
30AQI (US)
30AQI (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
31AQI (US)
31AQI (US)
14th July 2026
30AQI (US)
30AQI (US)
15th July 2026
28AQI (US)
28AQI (US)
16th July 2026
29AQI (US)
29AQI (US)
17th July 2026
44AQI (US)
44AQI (US)
18th July 2026
51AQI (US)
51AQI (US)
19th July 2026
41AQI (US)
41AQI (US)
20th July 2026
41AQI (US)
41AQI (US)
21st July 2026
44AQI (US)
44AQI (US)
22nd July 2026
45AQI (US)
45AQI (US)
23rd July 2026
37AQI (US)
37AQI (US)
24th July 2026
47AQI (US)
47AQI (US)
25th July 2026
42AQI (US)
42AQI (US)
26th July 2026
42AQI (US)
42AQI (US)
27th July 2026
42AQI (US)
42AQI (US)
28th July 2026
44AQI (US)
44AQI (US)
29th July 2026
40AQI (US)
40AQI (US)
30th July 2026
45AQI (US)
45AQI (US)
31st July 2026
49AQI (US)
49AQI (US)
1st August 2026
46AQI (US)
46AQI (US)
2nd August 2026
49AQI (US)
49AQI (US)
3rd August 2026
59AQI (US)
59AQI (US)
4th August 2026
51AQI (US)
51AQI (US)
5th August 2026
46AQI (US)
46AQI (US)
6th August 2026
48AQI (US)
48AQI (US)
7th August 2026
45AQI (US)
45AQI (US)
8th August 2026
49AQI (US)
49AQI (US)
9th August 2026
48AQI (US)
48AQI (US)
10th August 2026
51AQI (US)
51AQI (US)
11th August 2026
50AQI (US)
50AQI (US)
12th August 2026
42AQI (US)
42AQI (US)
13th August 2026
46AQI (US)
46AQI (US)
14th August 2026
42AQI (US)
42AQI (US)
15th August 2026
41AQI (US)
41AQI (US)
16th August 2026
44AQI (US)
44AQI (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
38AQI (US)
43AQI (US)
35AQI (US)
29AQI (US)
37AQI (US)
26AQI (US)
36AQI (US)
47AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202636AQI (US)
22
9
25
3
30
1
28
25
5
30
30
1
13
3
203
22
Highest AQI (US) recorded in
August47AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202533AQI (US)
6
30
31
30
31
31
28
2
26
5
22
8
19
12
254
27
Highest AQI (US) recorded in
December45AQI (US)
Lowest AQI (US) recorded in
March19AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Most Polluted Year Recorded
2026(Avg.)
36AQI (US)Least Polluted Year Recorded
2025(Avg.)
33AQI (US)Hayward's annual 2026 AQI (US) (36) shows an average percentage change of 9.09% (worsened AQI (US)) compared to previous years: 2025 (33).
