Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Antioch, 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

Antioch, California, United States

2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
3rd Aug 2026
54AQI
Lowest AQI recorded on
17th Aug 2025
16AQI

Same Day Analysis (15th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 1st highest AQI at 42 of Good air quality on the same day.

Day & Night AQI Trend: 15th Aug - 16th Aug 2026

Antioch, 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
7AM15th Aug

14AQI

Night time
Avg. Highest Time
9PM15th Aug

52AQI

Avg. Lowest Time
3AM16th Aug

42AQI

In the last 24 hours,

Antioch's AQI reached its highest point of 56 at 8 PM during the Day, while the lowest point, 14, was recorded at 7 AM during the Day between 15th Aug and 16th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Antioch, 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 2026466 AMAQI
18th Jul 2026427 AMAQI
18th Jul 2026468 AMAQI
18th Jul 2026469 AMAQI
18th Jul 20265210 AMAQI
18th Jul 20264611 AMAQI
18th Jul 20265812 PMAQI
18th Jul 2026651 PMAQI
18th Jul 2026512 PMAQI
18th Jul 2026513 PMAQI
18th Jul 2026544 PMAQI
18th Jul 2026515 PMAQI
18th Jul 2026506 PMAQI
18th Jul 2026507 PMAQI
18th Jul 2026508 PMAQI
18th Jul 2026519 PMAQI
18th Jul 20264010 PMAQI
18th Jul 20264611 PMAQI
19th Jul 20264612 AMAQI
19th Jul 2026441 AMAQI
19th Jul 2026502 AMAQI
19th Jul 2026463 AMAQI
19th Jul 2026424 AMAQI
19th Jul 2026485 AMAQI

22°C15/34°C

19th Jul 2026386 AMAQI
19th Jul 2026447 AMAQI
19th Jul 2026448 AMAQI
19th Jul 2026349 AMAQI
19th Jul 20264410 AMAQI
19th Jul 20264811 AMAQI
19th Jul 20265012 PMAQI
19th Jul 2026341 PMAQI
19th Jul 2026462 PMAQI
19th Jul 2026323 PMAQI
19th Jul 2026504 PMAQI
19th Jul 2026465 PMAQI
19th Jul 2026366 PMAQI
19th Jul 2026587 PMAQI
19th Jul 2026538 PMAQI
19th Jul 2026469 PMAQI
19th Jul 20265010 PMAQI
19th Jul 20264811 PMAQI
20th Jul 20264612 AMAQI
20th Jul 2026461 AMAQI
20th Jul 2026502 AMAQI
20th Jul 2026423 AMAQI
20th Jul 2026424 AMAQI
20th Jul 2026565 AMAQI

23°C15/34°C

20th Jul 2026546 AMAQI
20th Jul 2026487 AMAQI
20th Jul 2026468 AMAQI
20th Jul 2026429 AMAQI
20th Jul 20264610 AMAQI
20th Jul 20265011 AMAQI
20th Jul 20265812 PMAQI
20th Jul 2026571 PMAQI
20th Jul 2026562 PMAQI
20th Jul 2026543 PMAQI
20th Jul 2026524 PMAQI
20th Jul 2026325 PMAQI
20th Jul 2026786 PMAQI
20th Jul 2026447 PMAQI
20th Jul 2026489 PMAQI
20th Jul 20264610 PMAQI
20th Jul 20264611 PMAQI
21st Jul 20261512 AMAQI
21st Jul 2026461 AMAQI
21st Jul 2026332 AMAQI
21st Jul 2026523 AMAQI
21st Jul 2026104 AMAQI
21st Jul 2026225 AMAQI

24°C17/35°C

21st Jul 2026426 AMAQI
21st Jul 2026447 AMAQI
21st Jul 2026468 AMAQI
21st Jul 2026559 AMAQI
21st Jul 20265610 AMAQI
21st Jul 20264611 AMAQI
21st Jul 20265012 PMAQI
21st Jul 2026501 PMAQI
21st Jul 2026462 PMAQI
21st Jul 2026493 PMAQI
21st Jul 2026494 PMAQI
21st Jul 2026445 PMAQI
21st Jul 2026346 PMAQI
21st Jul 2026427 PMAQI
21st Jul 2026488 PMAQI
21st Jul 2026609 PMAQI
21st Jul 20265810 PMAQI
21st Jul 20265711 PMAQI
22nd Jul 20265212 AMAQI
22nd Jul 2026381 AMAQI
22nd Jul 2026462 AMAQI
22nd Jul 2026503 AMAQI
22nd Jul 2026464 AMAQI
22nd Jul 2026265 AMAQI

29°C21/39°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 20265012 PMAQI
22nd Jul 2026521 PMAQI
22nd Jul 2026342 PMAQI
22nd Jul 2026513 PMAQI
22nd Jul 2026564 PMAQI
22nd Jul 2026425 PMAQI
22nd Jul 2026366 PMAQI
22nd Jul 2026727 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 2026202 AMAQI
23rd Jul 2026423 AMAQI
23rd Jul 2026134 AMAQI
23rd Jul 2026155 AMAQI

24°C18/31°C

23rd Jul 2026206 AMAQI
23rd Jul 2026207 AMAQI
23rd Jul 2026468 AMAQI
23rd Jul 2026569 AMAQI
23rd Jul 20265210 AMAQI
23rd Jul 20262811 AMAQI
23rd Jul 20261812 PMAQI
23rd Jul 2026461 PMAQI
23rd Jul 2026732 PMAQI
23rd Jul 2026423 PMAQI
23rd Jul 2026564 PMAQI
23rd Jul 2026315 PMAQI
23rd Jul 2026446 PMAQI
23rd Jul 2026557 PMAQI
23rd Jul 2026538 PMAQI
23rd Jul 2026539 PMAQI
23rd Jul 20265210 PMAQI
23rd Jul 20265011 PMAQI
24th Jul 20263812 AMAQI
24th Jul 2026361 AMAQI
24th Jul 2026362 AMAQI
24th Jul 2026483 AMAQI
24th Jul 2026464 AMAQI
24th Jul 2026495 AMAQI

24°C17/33°C

24th Jul 2026466 AMAQI
24th Jul 2026487 AMAQI
24th Jul 2026728 AMAQI
24th Jul 2026659 AMAQI
24th Jul 20265010 AMAQI
24th Jul 20266011 AMAQI
24th Jul 20265712 PMAQI
24th Jul 2026401 PMAQI
24th Jul 2026542 PMAQI
24th Jul 2026513 PMAQI
24th Jul 2026504 PMAQI
24th Jul 2026365 PMAQI
24th Jul 2026346 PMAQI
24th Jul 2026527 PMAQI
24th Jul 2026518 PMAQI
24th Jul 2026529 PMAQI
24th Jul 20264810 PMAQI
24th Jul 20265011 PMAQI
25th Jul 20264612 AMAQI
25th Jul 2026521 AMAQI
25th Jul 2026462 AMAQI
25th Jul 2026463 AMAQI
25th Jul 2026464 AMAQI
25th Jul 2026545 AMAQI

25°C18/36°C

25th Jul 2026506 AMAQI
25th Jul 2026427 AMAQI
25th Jul 2026468 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20264410 AMAQI
25th Jul 20264411 AMAQI
25th Jul 20263812 PMAQI
25th Jul 2026461 PMAQI
25th Jul 2026462 PMAQI
25th Jul 2026463 PMAQI
25th Jul 2026464 PMAQI
25th Jul 2026465 PMAQI
25th Jul 2026256 PMAQI
25th Jul 2026467 PMAQI
25th Jul 2026528 PMAQI
25th Jul 2026549 PMAQI
25th Jul 20264610 PMAQI
25th Jul 20264611 PMAQI
26th Jul 20264212 AMAQI
26th Jul 2026481 AMAQI
26th Jul 2026462 AMAQI
26th Jul 2026473 AMAQI
26th Jul 2026314 AMAQI
26th Jul 2026465 AMAQI

26°C19/35°C

26th Jul 2026446 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 2026423 PMAQI
26th Jul 2026364 PMAQI
26th Jul 2026255 PMAQI
26th Jul 2026346 PMAQI
26th Jul 2026717 PMAQI
26th Jul 2026608 PMAQI
26th Jul 2026569 PMAQI
26th Jul 20265310 PMAQI
26th Jul 20265611 PMAQI
27th Jul 20264912 AMAQI
27th Jul 2026421 AMAQI
27th Jul 2026482 AMAQI
27th Jul 2026423 AMAQI
27th Jul 2026384 AMAQI
27th Jul 2026465 AMAQI

26°C19/34°C

27th Jul 2026146 AMAQI
27th Jul 2026387 AMAQI
27th Jul 2026468 AMAQI
27th Jul 2026469 AMAQI
27th Jul 20265010 AMAQI
27th Jul 20266011 AMAQI
27th Jul 20265412 PMAQI
27th Jul 2026561 PMAQI
27th Jul 2026462 PMAQI
27th Jul 2026543 PMAQI
27th Jul 2026524 PMAQI
27th Jul 2026405 PMAQI
27th Jul 2026326 PMAQI
27th Jul 2026447 PMAQI
27th Jul 2026278 PMAQI
27th Jul 2026389 PMAQI
27th Jul 20263410 PMAQI
27th Jul 20263611 PMAQI
28th Jul 20264912 AMAQI
28th Jul 2026421 AMAQI
28th Jul 2026422 AMAQI
28th Jul 2026463 AMAQI
28th Jul 2026424 AMAQI
28th Jul 2026425 AMAQI

24°C15/34°C

28th Jul 2026386 AMAQI
28th Jul 2026527 AMAQI
28th Jul 2026448 AMAQI
28th Jul 2026469 AMAQI
28th Jul 20264210 AMAQI
28th Jul 20265611 AMAQI
28th Jul 20264212 PMAQI
28th Jul 2026421 PMAQI
28th Jul 2026402 PMAQI
28th Jul 2026443 PMAQI
28th Jul 2026424 PMAQI
28th Jul 2026485 PMAQI
28th Jul 2026366 PMAQI
28th Jul 2026567 PMAQI
28th Jul 2026588 PMAQI
28th Jul 2026529 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

25°C15/36°C

29th Jul 2026446 AMAQI
29th Jul 2026487 AMAQI
29th Jul 2026548 AMAQI
29th Jul 2026509 AMAQI
29th Jul 20264010 AMAQI
29th Jul 20263611 AMAQI
29th Jul 20264412 PMAQI
29th Jul 2026421 PMAQI
29th Jul 2026502 PMAQI
29th Jul 2026523 PMAQI
29th Jul 2026314 PMAQI
29th Jul 2026505 PMAQI
29th Jul 2026466 PMAQI
29th Jul 2026507 PMAQI
29th Jul 2026348 PMAQI
29th Jul 2026429 PMAQI
29th Jul 20264210 PMAQI
29th Jul 20264811 PMAQI
30th Jul 20264612 AMAQI
30th Jul 2026441 AMAQI
30th Jul 2026402 AMAQI
30th Jul 2026403 AMAQI
30th Jul 2026464 AMAQI
30th Jul 2026445 AMAQI

26°C17/37°C

30th Jul 2026406 AMAQI
30th Jul 2026427 AMAQI
30th Jul 2026468 AMAQI
30th Jul 2026469 AMAQI
30th Jul 20264510 AMAQI
30th Jul 20264411 AMAQI
30th Jul 20264412 PMAQI
30th Jul 2026421 PMAQI
30th Jul 2026442 PMAQI
30th Jul 2026423 PMAQI
30th Jul 2026474 PMAQI
30th Jul 2026535 PMAQI
30th Jul 2026466 PMAQI
30th Jul 2026427 PMAQI
30th Jul 2026428 PMAQI
30th Jul 2026429 PMAQI
30th Jul 20264210 PMAQI
30th Jul 20265211 PMAQI
31st Jul 20266712 AMAQI
31st Jul 2026571 AMAQI
31st Jul 2026562 AMAQI
31st Jul 2026483 AMAQI
31st Jul 2026464 AMAQI
31st Jul 2026565 AMAQI

26°C19/37°C

31st Jul 2026586 AMAQI
31st Jul 2026587 AMAQI
31st Jul 2026558 AMAQI
31st Jul 2026559 AMAQI
31st Jul 20265310 AMAQI
31st Jul 20265311 AMAQI
31st Jul 20265312 PMAQI
31st Jul 2026521 PMAQI
31st Jul 2026492 PMAQI
31st Jul 2026513 PMAQI
31st Jul 2026524 PMAQI
31st Jul 2026515 PMAQI
31st Jul 2026486 PMAQI
31st Jul 2026507 PMAQI
31st Jul 2026488 PMAQI
31st Jul 2026469 PMAQI
31st Jul 20265310 PMAQI
31st Jul 20265411 PMAQI
1st Aug 20265812 AMAQI
1st Aug 2026491 AMAQI
1st Aug 2026422 AMAQI
1st Aug 2026383 AMAQI
1st Aug 2026494 AMAQI
1st Aug 2026445 AMAQI

26°C16/38°C

1st Aug 2026536 AMAQI
1st Aug 2026497 AMAQI
1st Aug 2026468 AMAQI
1st Aug 2026529 AMAQI
1st Aug 20264610 AMAQI
1st Aug 20264611 AMAQI
1st Aug 20263812 PMAQI
1st Aug 2026461 PMAQI
1st Aug 2026422 PMAQI
1st Aug 2026423 PMAQI
1st Aug 2026464 PMAQI
1st Aug 2026405 PMAQI
1st Aug 2026446 PMAQI
1st Aug 2026427 PMAQI
1st Aug 2026448 PMAQI
1st Aug 2026449 PMAQI
1st Aug 20264810 PMAQI
1st Aug 20264811 PMAQI
2nd Aug 20264612 AMAQI
2nd Aug 2026441 AMAQI
2nd Aug 2026462 AMAQI
2nd Aug 2026403 AMAQI
2nd Aug 2026464 AMAQI
2nd Aug 2026465 AMAQI

27°C17/38°C

2nd Aug 2026506 AMAQI
2nd Aug 2026497 AMAQI
2nd Aug 2026468 AMAQI
2nd Aug 2026449 AMAQI
2nd Aug 20264610 AMAQI
2nd Aug 20265011 AMAQI
2nd Aug 20264812 PMAQI
2nd Aug 2026421 PMAQI
2nd Aug 2026492 PMAQI
2nd Aug 2026523 PMAQI
2nd Aug 2026514 PMAQI
2nd Aug 2026535 PMAQI
2nd Aug 2026536 PMAQI
2nd Aug 2026497 PMAQI
2nd Aug 2026518 PMAQI
2nd Aug 2026489 PMAQI
2nd Aug 20264810 PMAQI
2nd Aug 20264811 PMAQI
3rd Aug 20265312 AMAQI
3rd Aug 2026521 AMAQI
3rd Aug 2026502 AMAQI
3rd Aug 2026493 AMAQI
3rd Aug 2026484 AMAQI
3rd Aug 2026545 AMAQI

29°C20/40°C

3rd Aug 2026526 AMAQI
3rd Aug 2026537 AMAQI
3rd Aug 2026548 AMAQI
3rd Aug 2026589 AMAQI
3rd Aug 20265810 AMAQI
3rd Aug 20265711 AMAQI
3rd Aug 20265912 PMAQI
3rd Aug 2026581 PMAQI
3rd Aug 2026562 PMAQI
3rd Aug 2026543 PMAQI
3rd Aug 2026604 PMAQI
3rd Aug 2026555 PMAQI
3rd Aug 2026546 PMAQI
3rd Aug 2026547 PMAQI
3rd Aug 2026498 PMAQI
3rd Aug 2026529 PMAQI
3rd Aug 20264810 PMAQI
3rd Aug 20265311 PMAQI
4th Aug 20265212 AMAQI
4th Aug 2026491 AMAQI
4th Aug 2026502 AMAQI
4th Aug 2026523 AMAQI
4th Aug 2026504 AMAQI
4th Aug 2026475 AMAQI

29°C18/42°C

4th Aug 2026506 AMAQI
4th Aug 2026537 AMAQI
4th Aug 2026498 AMAQI
4th Aug 2026519 AMAQI
4th Aug 20265010 AMAQI
4th Aug 20265111 AMAQI
4th Aug 20265012 PMAQI
4th Aug 2026521 PMAQI
4th Aug 2026532 PMAQI
4th Aug 2026513 PMAQI
4th Aug 2026524 PMAQI
4th Aug 2026505 PMAQI
4th Aug 2026466 PMAQI
4th Aug 2026487 PMAQI
4th Aug 2026468 PMAQI
4th Aug 2026489 PMAQI
4th Aug 20264610 PMAQI
4th Aug 20264611 PMAQI
5th Aug 20264612 AMAQI
5th Aug 2026461 AMAQI
5th Aug 2026422 AMAQI
5th Aug 2026443 AMAQI
5th Aug 2026424 AMAQI
5th Aug 2026445 AMAQI

27°C19/38°C

5th Aug 2026426 AMAQI
5th Aug 2026407 AMAQI
5th Aug 2026468 AMAQI
5th Aug 2026449 AMAQI
5th Aug 20264610 AMAQI
5th Aug 20264411 AMAQI
5th Aug 20264412 PMAQI
5th Aug 2026481 PMAQI
5th Aug 2026462 PMAQI
5th Aug 2026493 PMAQI
5th Aug 2026484 PMAQI
5th Aug 2026485 PMAQI
5th Aug 2026486 PMAQI
5th Aug 2026467 PMAQI
5th Aug 2026388 PMAQI
5th Aug 2026449 PMAQI
5th Aug 20264710 PMAQI
5th Aug 20265011 PMAQI
6th Aug 20264612 AMAQI
6th Aug 2026501 AMAQI
6th Aug 2026342 AMAQI
6th Aug 2026423 AMAQI
6th Aug 2026344 AMAQI
6th Aug 2026485 AMAQI

24°C16/35°C

6th Aug 2026546 AMAQI
6th Aug 2026467 AMAQI
6th Aug 2026528 AMAQI
6th Aug 2026419 AMAQI
6th Aug 20265610 AMAQI
6th Aug 20265111 AMAQI
6th Aug 20265612 PMAQI
6th Aug 2026571 PMAQI
6th Aug 2026562 PMAQI
6th Aug 2026463 PMAQI
6th Aug 2026454 PMAQI
6th Aug 2026485 PMAQI
6th Aug 2026526 PMAQI
6th Aug 2026497 PMAQI
6th Aug 2026488 PMAQI
6th Aug 2026489 PMAQI
6th Aug 20265210 PMAQI
6th Aug 20265011 PMAQI
7th Aug 20264012 AMAQI
7th Aug 2026421 AMAQI
7th Aug 2026502 AMAQI
7th Aug 2026483 AMAQI
7th Aug 2026444 AMAQI
7th Aug 2026465 AMAQI

24°C16/37°C

7th Aug 2026366 AMAQI
7th Aug 2026487 AMAQI
7th Aug 2026468 AMAQI
7th Aug 2026389 AMAQI
7th Aug 20264210 AMAQI
7th Aug 20264611 AMAQI
7th Aug 20264812 PMAQI
7th Aug 2026521 PMAQI
7th Aug 2026292 PMAQI
7th Aug 2026423 PMAQI
7th Aug 2026524 PMAQI
7th Aug 2026405 PMAQI
7th Aug 2026386 PMAQI
7th Aug 2026407 PMAQI
7th Aug 2026448 PMAQI
7th Aug 2026559 PMAQI
7th Aug 20264410 PMAQI
7th Aug 20264411 PMAQI
8th Aug 20264612 AMAQI
8th Aug 2026481 AMAQI
8th Aug 2026482 AMAQI
8th Aug 2026483 AMAQI
8th Aug 2026444 AMAQI
8th Aug 2026465 AMAQI

26°C18/38°C

8th Aug 2026426 AMAQI
8th Aug 2026517 AMAQI
8th Aug 2026548 AMAQI
8th Aug 2026489 AMAQI
8th Aug 20265210 AMAQI
8th Aug 20265811 AMAQI
8th Aug 20265612 PMAQI
8th Aug 2026521 PMAQI
8th Aug 2026492 PMAQI
8th Aug 2026463 PMAQI
8th Aug 2026464 PMAQI
8th Aug 2026365 PMAQI
8th Aug 2026426 PMAQI
8th Aug 2026467 PMAQI
8th Aug 2026468 PMAQI
8th Aug 2026469 PMAQI
8th Aug 20265110 PMAQI
8th Aug 20265211 PMAQI
9th Aug 20264812 AMAQI
9th Aug 2026421 AMAQI
9th Aug 2026442 AMAQI
9th Aug 2026463 AMAQI
9th Aug 2026484 AMAQI
9th Aug 2026485 AMAQI

26°C18/38°C

9th Aug 2026426 AMAQI
9th Aug 2026487 AMAQI
9th Aug 2026348 AMAQI
9th Aug 2026429 AMAQI
9th Aug 20264210 AMAQI
9th Aug 20264211 AMAQI
9th Aug 20265012 PMAQI
9th Aug 2026461 PMAQI
9th Aug 2026482 PMAQI
9th Aug 2026543 PMAQI
9th Aug 2026514 PMAQI
9th Aug 2026515 PMAQI
9th Aug 2026496 PMAQI
9th Aug 2026447 PMAQI
9th Aug 2026468 PMAQI
9th Aug 2026409 PMAQI
9th Aug 20264610 PMAQI
9th Aug 20265411 PMAQI
10th Aug 20265512 AMAQI
10th Aug 2026471 AMAQI
10th Aug 2026482 AMAQI
10th Aug 2026523 AMAQI
10th Aug 2026514 AMAQI
10th Aug 2026425 AMAQI

27°C17/39°C

10th Aug 2026466 AMAQI
10th Aug 2026467 AMAQI
10th Aug 2026428 AMAQI
10th Aug 2026489 AMAQI
10th Aug 20265010 AMAQI
10th Aug 20265111 AMAQI
10th Aug 20265212 PMAQI
10th Aug 2026521 PMAQI
10th Aug 2026532 PMAQI
10th Aug 2026523 PMAQI
10th Aug 2026514 PMAQI
10th Aug 2026515 PMAQI
10th Aug 2026526 PMAQI
10th Aug 2026527 PMAQI
10th Aug 2026528 PMAQI
10th Aug 2026519 PMAQI
10th Aug 20264910 PMAQI
10th Aug 20265111 PMAQI
11th Aug 20265112 AMAQI
11th Aug 2026481 AMAQI
11th Aug 2026502 AMAQI
11th Aug 2026483 AMAQI
11th Aug 2026514 AMAQI
11th Aug 2026475 AMAQI

25°C16/36°C

11th Aug 2026466 AMAQI
11th Aug 2026467 AMAQI
11th Aug 2026468 AMAQI
11th Aug 2026469 AMAQI
11th Aug 20264610 AMAQI
11th Aug 20264911 AMAQI
11th Aug 20264812 PMAQI
11th Aug 2026541 PMAQI
11th Aug 2026552 PMAQI
11th Aug 2026533 PMAQI
11th Aug 2026554 PMAQI
11th Aug 2026565 PMAQI
11th Aug 2026526 PMAQI
11th Aug 2026527 PMAQI
11th Aug 2026448 PMAQI
11th Aug 2026469 PMAQI
11th Aug 20265410 PMAQI
11th Aug 20262611 PMAQI
12th Aug 20265212 AMAQI
12th Aug 2026381 AMAQI
12th Aug 2026342 AMAQI
12th Aug 2026363 AMAQI
12th Aug 2026464 AMAQI
12th Aug 2026505 AMAQI

23°C15/35°C

12th Aug 2026346 AMAQI
12th Aug 2026497 AMAQI
12th Aug 2026478 AMAQI
12th Aug 2026469 AMAQI
12th Aug 20264410 AMAQI
12th Aug 20264911 AMAQI
12th Aug 20265312 PMAQI
12th Aug 2026421 PMAQI
12th Aug 2026462 PMAQI
12th Aug 2026523 PMAQI
12th Aug 2026534 PMAQI
12th Aug 2026525 PMAQI
12th Aug 2026516 PMAQI
12th Aug 2026487 PMAQI
12th Aug 2026478 PMAQI
12th Aug 2026519 PMAQI
12th Aug 20265210 PMAQI
12th Aug 20265011 PMAQI
13th Aug 20265012 AMAQI
13th Aug 2026541 AMAQI
13th Aug 2026622 AMAQI
13th Aug 2026383 AMAQI
13th Aug 2026484 AMAQI
13th Aug 2026535 AMAQI

22°C15/33°C

13th Aug 2026526 AMAQI
13th Aug 2026517 AMAQI
13th Aug 2026548 AMAQI
13th Aug 2026519 AMAQI
13th Aug 20265010 AMAQI
13th Aug 20265011 AMAQI
13th Aug 20264412 PMAQI
13th Aug 2026561 PMAQI
13th Aug 2026292 PMAQI
13th Aug 2026573 PMAQI
13th Aug 2026484 PMAQI
13th Aug 2026465 PMAQI
13th Aug 2026296 PMAQI
13th Aug 2026547 PMAQI
13th Aug 2026538 PMAQI
13th Aug 2026549 PMAQI
13th Aug 20264610 PMAQI
13th Aug 20265011 PMAQI
14th Aug 20265112 AMAQI
14th Aug 2026511 AMAQI
14th Aug 2026462 AMAQI
14th Aug 2026463 AMAQI
14th Aug 2026524 AMAQI
14th Aug 2026515 AMAQI

21°C14/30°C

14th Aug 2026426 AMAQI
14th Aug 2026147 AMAQI
14th Aug 2026248 AMAQI
14th Aug 2026289 AMAQI
14th Aug 20262910 AMAQI
14th Aug 20263811 AMAQI
14th Aug 20264712 PMAQI
14th Aug 2026421 PMAQI
14th Aug 2026482 PMAQI
14th Aug 2026463 PMAQI
14th Aug 2026334 PMAQI
14th Aug 2026465 PMAQI
14th Aug 2026466 PMAQI
14th Aug 2026587 PMAQI
14th Aug 2026468 PMAQI
14th Aug 2026509 PMAQI
14th Aug 20264810 PMAQI
14th Aug 20265011 PMAQI
15th Aug 20264212 AMAQI
15th Aug 2026401 AMAQI
15th Aug 2026462 AMAQI
15th Aug 2026423 AMAQI
15th Aug 2026424 AMAQI
15th Aug 2026525 AMAQI

20°C14/28°C

15th Aug 2026446 AMAQI
15th Aug 2026147 AMAQI
15th Aug 2026188 AMAQI
15th Aug 2026449 AMAQI
15th Aug 20264810 AMAQI
15th Aug 20263811 AMAQI
15th Aug 20262712 PMAQI
15th Aug 2026181 PMAQI
15th Aug 2026522 PMAQI
15th Aug 2026503 PMAQI
15th Aug 2026494 PMAQI
15th Aug 2026485 PMAQI
15th Aug 2026466 PMAQI
15th Aug 2026547 PMAQI
15th Aug 2026568 PMAQI
15th Aug 2026529 PMAQI
15th Aug 20264810 PMAQI
15th Aug 20264611 PMAQI
16th Aug 20265012 AMAQI
16th Aug 2026461 AMAQI
16th Aug 2026462 AMAQI
16th Aug 2026423 AMAQI
16th Aug 2026464 AMAQI
16th Aug 2026465 AMAQI

21°C13/31°C

16th Aug 2026466 AMAQI
6 AM
16th Aug 2026467 AMAQI
16th Aug 2026508 AMAQI
16th Aug 2026509 AMAQI
16th Aug 20264610 AMAQI
16th Aug 20264611 AMAQI
16th Aug 20264612 PMAQI
16th Aug 2026541 PMAQI
1 PM
16th Aug 2026522 PMAQI
16th Aug 2026583 PMAQI
16th Aug 2026584 PMAQI
16th Aug 2026545 PMAQI
16th Aug 2026546 PMAQI
16th Aug 2026547 PMAQI
16th Aug 2026548 PMAQI
8 PM
16th Aug 2026549 PMAQI
16th Aug 20264610 PMAQI
16th Aug 20263411 PMAQI
1 AM
5 AM

22°C14/32°C

Day time
Avg. Highest Time
7 PM

51AQI

1 hours / Day
30 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 7 PM to 7 PM (Avg. 51), while the lowest AQI was between 6 AM to 7 AM (Avg. 44).
Night time
Avg. Highest Time
9 PM - 11 PM

48AQI

3 hours / Day
90 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 11 PM (Avg. 48), while the lowest AQI was between 4 AM to 4 AM (Avg. 43).

2026 Days Vs Air Quality

Antioch, California, United States

2026

93%

209

7%

15

Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)

Good
209 Days
Moderate
15 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 93%

Health Risk Level:

Very Low

In 2026, 93% of 228 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Antioch, 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
40AQI (US)
2nd January 2026
32AQI (US)
3rd January 2026
29AQI (US)
4th January 2026
25AQI (US)
5th January 2026
29AQI (US)
6th January 2026
30AQI (US)
7th January 2026
26AQI (US)
8th January 2026
28AQI (US)
9th January 2026
31AQI (US)
10th January 2026
49AQI (US)
11th January 2026
45AQI (US)
12th January 2026
53AQI (US)
13th January 2026
64AQI (US)
14th January 2026
61AQI (US)
15th January 2026
66AQI (US)
16th January 2026
63AQI (US)
17th January 2026
66AQI (US)
18th January 2026
68AQI (US)
19th January 2026
56AQI (US)
20th January 2026
52AQI (US)
21st January 2026
50AQI (US)
22nd January 2026
47AQI (US)
23rd January 2026
50AQI (US)
24th January 2026
46AQI (US)
25th January 2026
43AQI (US)
26th January 2026
45AQI (US)
27th January 2026
42AQI (US)
28th January 2026
47AQI (US)
29th January 2026
53AQI (US)
30th January 2026
51AQI (US)
31st January 2026
39AQI (US)
1st February 2026
46AQI (US)
2nd February 2026
47AQI (US)
3rd February 2026
47AQI (US)
4th February 2026
46AQI (US)
5th February 2026
46AQI (US)
6th February 2026
42AQI (US)
7th February 2026
36AQI (US)
8th February 2026
45AQI (US)
9th February 2026
46AQI (US)
10th February 2026
28AQI (US)
11th February 2026
40AQI (US)
12th February 2026
47AQI (US)
13th February 2026
50AQI (US)
14th February 2026
43AQI (US)
15th February 2026
36AQI (US)
16th February 2026
45AQI (US)
17th February 2026
48AQI (US)
18th February 2026
43AQI (US)
19th February 2026
44AQI (US)
20th February 2026
41AQI (US)
21st February 2026
35AQI (US)
22nd February 2026
36AQI (US)
23rd February 2026
34AQI (US)
24th February 2026
27AQI (US)
25th February 2026
38AQI (US)
26th February 2026
34AQI (US)
27th February 2026
30AQI (US)
28th February 2026
24AQI (US)
1st March 2026
38AQI (US)
2nd March 2026
52AQI (US)
3rd March 2026
44AQI (US)
4th March 2026
40AQI (US)
5th March 2026
34AQI (US)
6th March 2026
32AQI (US)
7th March 2026
30AQI (US)
8th March 2026
19AQI (US)
9th March 2026
17AQI (US)
10th March 2026
21AQI (US)
11th March 2026
20AQI (US)
12th March 2026
22AQI (US)
13th March 2026
25AQI (US)
14th March 2026
17AQI (US)
15th March 2026
26AQI (US)
16th March 2026
28AQI (US)
17th March 2026
22AQI (US)
18th March 2026
22AQI (US)
19th March 2026
24AQI (US)
20th March 2026
27AQI (US)
21st March 2026
21AQI (US)
22nd March 2026
17AQI (US)
23rd March 2026
18AQI (US)
24th March 2026
29AQI (US)
25th March 2026
22AQI (US)
26th March 2026
29AQI (US)
27th March 2026
20AQI (US)
28th March 2026
19AQI (US)
29th March 2026
15AQI (US)
30th March 2026
20AQI (US)
31st March 2026
19AQI (US)
1st April 2026
30AQI (US)
2nd April 2026
29AQI (US)
3rd April 2026
23AQI (US)
4th April 2026
18AQI (US)
5th April 2026
22AQI (US)
6th April 2026
26AQI (US)
7th April 2026
19AQI (US)
8th April 2026
28AQI (US)
9th April 2026
25AQI (US)
10th April 2026
30AQI (US)
11th April 2026
34AQI (US)
12th April 2026
31AQI (US)
13th April 2026
34AQI (US)
14th April 2026
30AQI (US)
15th April 2026
20AQI (US)
16th April 2026
25AQI (US)
17th April 2026
18th April 2026
21AQI (US)
19th April 2026
20AQI (US)
20th April 2026
27AQI (US)
21st April 2026
29AQI (US)
22nd April 2026
23rd April 2026
28AQI (US)
24th April 2026
18AQI (US)
25th April 2026
12AQI (US)
26th April 2026
19AQI (US)
27th April 2026
14AQI (US)
28th April 2026
15AQI (US)
29th April 2026
18AQI (US)
30th April 2026
19AQI (US)
1st May 2026
16AQI (US)
2nd May 2026
13AQI (US)
3rd May 2026
20AQI (US)
4th May 2026
29AQI (US)
5th May 2026
34AQI (US)
6th May 2026
32AQI (US)
7th May 2026
23AQI (US)
8th May 2026
21AQI (US)
9th May 2026
10th May 2026
21AQI (US)
11th May 2026
18AQI (US)
12th May 2026
27AQI (US)
13th May 2026
19AQI (US)
14th May 2026
18AQI (US)
15th May 2026
34AQI (US)
16th May 2026
49AQI (US)
17th May 2026
56AQI (US)
18th May 2026
49AQI (US)
19th May 2026
49AQI (US)
20th May 2026
43AQI (US)
21st May 2026
38AQI (US)
22nd May 2026
39AQI (US)
23rd May 2026
37AQI (US)
24th May 2026
40AQI (US)
25th May 2026
39AQI (US)
26th May 2026
26AQI (US)
27th May 2026
19AQI (US)
28th May 2026
19AQI (US)
29th May 2026
15AQI (US)
30th May 2026
19AQI (US)
31st May 2026
14AQI (US)
1st June 2026
17AQI (US)
2nd June 2026
22AQI (US)
3rd June 2026
24AQI (US)
4th June 2026
24AQI (US)
5th June 2026
27AQI (US)
6th June 2026
21AQI (US)
7th June 2026
14AQI (US)
8th June 2026
21AQI (US)
9th June 2026
21AQI (US)
10th June 2026
17AQI (US)
11th June 2026
20AQI (US)
12th June 2026
21AQI (US)
13th June 2026
24AQI (US)
14th June 2026
14AQI (US)
15th June 2026
20AQI (US)
16th June 2026
20AQI (US)
17th June 2026
19AQI (US)
18th June 2026
18AQI (US)
19th June 2026
20AQI (US)
20th June 2026
15AQI (US)
21st June 2026
14AQI (US)
22nd June 2026
15AQI (US)
23rd June 2026
17AQI (US)
24th June 2026
19AQI (US)
25th June 2026
20AQI (US)
26th June 2026
13AQI (US)
27th June 2026
23AQI (US)
28th June 2026
14AQI (US)
29th June 2026
21AQI (US)
30th June 2026
26AQI (US)
1st July 2026
24AQI (US)
2nd July 2026
26AQI (US)
3rd July 2026
19AQI (US)
4th July 2026
15AQI (US)
5th July 2026
18AQI (US)
6th July 2026
18AQI (US)
7th July 2026
18AQI (US)
8th July 2026
16AQI (US)
9th July 2026
21AQI (US)
10th July 2026
26AQI (US)
11th July 2026
18AQI (US)
12th July 2026
14AQI (US)
13th July 2026
24AQI (US)
14th July 2026
20AQI (US)
15th July 2026
22AQI (US)
16th July 2026
18AQI (US)
17th July 2026
44AQI (US)
18th July 2026
48AQI (US)
19th July 2026
45AQI (US)
20th July 2026
50AQI (US)
21st July 2026
44AQI (US)
22nd July 2026
46AQI (US)
23rd July 2026
39AQI (US)
24th July 2026
49AQI (US)
25th July 2026
46AQI (US)
26th July 2026
45AQI (US)
27th July 2026
43AQI (US)
28th July 2026
46AQI (US)
29th July 2026
46AQI (US)
30th July 2026
44AQI (US)
31st July 2026
53AQI (US)
1st August 2026
46AQI (US)
2nd August 2026
48AQI (US)
3rd August 2026
54AQI (US)
4th August 2026
50AQI (US)
5th August 2026
45AQI (US)
6th August 2026
48AQI (US)
7th August 2026
44AQI (US)
8th August 2026
48AQI (US)
9th August 2026
46AQI (US)
10th August 2026
50AQI (US)
11th August 2026
49AQI (US)
12th August 2026
47AQI (US)
13th August 2026
49AQI (US)
14th August 2026
43AQI (US)
15th August 2026
42AQI (US)
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

46AQI (US)

40AQI (US)

25AQI (US)

24AQI (US)

29AQI (US)

19AQI (US)

32AQI (US)

47AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202632AQI (US)

20
11
28
30
1
28
29
1
30
30
1
14
1
209
15

Highest AQI (US) recorded in

August

47AQI (US)

Lowest AQI (US) recorded in

June

19AQI (US)

202537AQI (US)

25
6
28
31
29
1
31
29
1
31
30
1
27
3
13
18
18
12
10
21
302
63

Highest AQI (US) recorded in

December

56AQI (US)

Lowest AQI (US) recorded in

March

25AQI (US)

202435AQI (US)

16
1
2
12
28
1
30
1
31
28
28
3
26
4
18
13
220
22

Highest AQI (US) recorded in

December

45AQI (US)

Lowest AQI (US) recorded in

April

17AQI (US)

202342AQI (US)

1
2
21
10
22
12

Highest AQI (US) recorded in

November

54AQI (US)

Lowest AQI (US) recorded in

December

41AQI (US)

202025AQI (US)

1
1

Highest AQI (US) recorded in

November

25AQI (US)

Lowest AQI (US) recorded in

November

25AQI (US)

Most & Least Polluted Years Over the Last 5 Years

Most Polluted Year Recorded
2023(Avg.)
42AQI (US)
Least Polluted Year Recorded
2020(Avg.)
25AQI (US)

Antioch's annual 2026 AQI (US) (32) shows an average percentage change of -4.4% (improved AQI (US)) compared to previous years: 2020 (25), 2023 (42), 2024 (35), 2025 (37).