Chula Vista, 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
Chula Vista, California, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
29th Aug 2023
102AQILowest AQI recorded on
20th Aug 2023
24AQISame Day Analysis (9th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 9th Aug - 10th Aug 2025
Chula Vista, California, United States
AQI
Day
Night
.
5 AM9th Aug 2025
7 PM
4 AM10th Aug 2025
Day time
Avg. Highest Time
5PM9th Aug
56AQI
Avg. Lowest Time
10AM9th Aug
51AQI
Night time
Avg. Highest Time
9PM9th Aug
56AQI
Avg. Lowest Time
5AM9th Aug
48AQI
In the last 24 hours,
Chula Vista's AQI reached its highest point of 56 at 5 PM during the Day, while the lowest point, 48, was recorded at 5 AM during the Night between 9th Aug and 10th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Chula Vista, California, United States
JulAug
11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th
Day
Night
11th Jul 2025605 AMAQI
11th Jul 2025636 AMAQI
11th Jul 2025607 AMAQI
11th Jul 2025598 AMAQI
11th Jul 2025599 AMAQI
11th Jul 20255810 AMAQI
11th Jul 20255911 AMAQI
11th Jul 20256012 PMAQI
11th Jul 2025621 PMAQI
11th Jul 2025602 PMAQI
11th Jul 2025573 PMAQI
11th Jul 2025564 PMAQI
11th Jul 2025565 PMAQI
11th Jul 2025566 PMAQI
11th Jul 2025567 PMAQI
11th Jul 2025548 PMAQI
11th Jul 2025549 PMAQI
11th Jul 20255410 PMAQI
11th Jul 20255411 PMAQI
12th Jul 20255412 AMAQI
12th Jul 2025541 AMAQI
12th Jul 2025542 AMAQI
12th Jul 2025543 AMAQI
12th Jul 2025534 AMAQI
19°C18/22°C
12th Jul 2025555 AMAQI
12th Jul 2025556 AMAQI
12th Jul 2025577 AMAQI
12th Jul 2025588 AMAQI
12th Jul 2025589 AMAQI
12th Jul 20255710 AMAQI
12th Jul 20255711 AMAQI
12th Jul 20255712 PMAQI
12th Jul 2025561 PMAQI
12th Jul 2025562 PMAQI
12th Jul 2025573 PMAQI
12th Jul 2025564 PMAQI
12th Jul 2025555 PMAQI
12th Jul 2025546 PMAQI
12th Jul 2025547 PMAQI
12th Jul 2025538 PMAQI
12th Jul 2025519 PMAQI
12th Jul 20255110 PMAQI
12th Jul 20255011 PMAQI
13th Jul 20255112 AMAQI
13th Jul 2025511 AMAQI
13th Jul 2025492 AMAQI
13th Jul 2025503 AMAQI
13th Jul 2025474 AMAQI
19°C16/22°C
13th Jul 2025485 AMAQI
13th Jul 2025486 AMAQI
13th Jul 2025507 AMAQI
13th Jul 2025528 AMAQI
13th Jul 2025529 AMAQI
13th Jul 20255310 AMAQI
13th Jul 20255311 AMAQI
13th Jul 20255512 PMAQI
13th Jul 2025551 PMAQI
13th Jul 2025552 PMAQI
13th Jul 2025553 PMAQI
13th Jul 2025544 PMAQI
13th Jul 2025535 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025517 PMAQI
13th Jul 2025498 PMAQI
13th Jul 2025489 PMAQI
13th Jul 20254710 PMAQI
13th Jul 20254511 PMAQI
14th Jul 20254612 AMAQI
14th Jul 2025451 AMAQI
14th Jul 2025452 AMAQI
14th Jul 2025443 AMAQI
14th Jul 2025364 AMAQI
20°C18/23°C
14th Jul 2025385 AMAQI
14th Jul 2025426 AMAQI
14th Jul 2025457 AMAQI
14th Jul 2025478 AMAQI
14th Jul 2025479 AMAQI
14th Jul 20255010 AMAQI
14th Jul 20255111 AMAQI
14th Jul 20255212 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025512 PMAQI
14th Jul 2025503 PMAQI
14th Jul 2025484 PMAQI
14th Jul 2025465 PMAQI
14th Jul 2025456 PMAQI
14th Jul 2025447 PMAQI
14th Jul 2025448 PMAQI
14th Jul 2025399 PMAQI
14th Jul 20253910 PMAQI
14th Jul 20253811 PMAQI
15th Jul 20253812 AMAQI
15th Jul 2025381 AMAQI
15th Jul 2025372 AMAQI
15th Jul 2025373 AMAQI
15th Jul 2025304 AMAQI
20°C18/23°C
15th Jul 2025335 AMAQI
15th Jul 2025376 AMAQI
15th Jul 2025387 AMAQI
15th Jul 2025388 AMAQI
15th Jul 2025399 AMAQI
15th Jul 20254210 AMAQI
15th Jul 20254911 AMAQI
15th Jul 20255212 PMAQI
15th Jul 2025521 PMAQI
15th Jul 2025532 PMAQI
15th Jul 2025483 PMAQI
15th Jul 2025454 PMAQI
15th Jul 2025405 PMAQI
15th Jul 2025386 PMAQI
15th Jul 2025387 PMAQI
15th Jul 2025378 PMAQI
15th Jul 2025369 PMAQI
15th Jul 20253410 PMAQI
15th Jul 20253411 PMAQI
16th Jul 20253412 AMAQI
16th Jul 2025341 AMAQI
16th Jul 2025342 AMAQI
16th Jul 2025323 AMAQI
16th Jul 2025304 AMAQI
19°C18/22°C
16th Jul 2025295 AMAQI
16th Jul 2025306 AMAQI
16th Jul 2025327 AMAQI
16th Jul 2025348 AMAQI
16th Jul 2025389 AMAQI
16th Jul 20253710 AMAQI
16th Jul 20253711 AMAQI
16th Jul 20254012 PMAQI
16th Jul 2025411 PMAQI
16th Jul 2025422 PMAQI
16th Jul 2025403 PMAQI
16th Jul 2025384 PMAQI
16th Jul 2025365 PMAQI
16th Jul 2025346 PMAQI
16th Jul 2025357 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025309 PMAQI
16th Jul 20252810 PMAQI
16th Jul 20252911 PMAQI
17th Jul 20252812 AMAQI
17th Jul 2025301 AMAQI
17th Jul 2025312 AMAQI
17th Jul 2025283 AMAQI
17th Jul 2025214 AMAQI
20°C18/22°C
17th Jul 2025215 AMAQI
17th Jul 2025226 AMAQI
17th Jul 2025247 AMAQI
17th Jul 2025248 AMAQI
17th Jul 2025309 AMAQI
17th Jul 20253710 AMAQI
17th Jul 20252911 AMAQI
17th Jul 20253412 PMAQI
17th Jul 2025321 PMAQI
17th Jul 2025322 PMAQI
17th Jul 2025323 PMAQI
17th Jul 2025324 PMAQI
17th Jul 2025315 PMAQI
17th Jul 2025296 PMAQI
17th Jul 2025287 PMAQI
17th Jul 2025298 PMAQI
17th Jul 2025289 PMAQI
17th Jul 20252710 PMAQI
17th Jul 20252611 PMAQI
18th Jul 20252712 AMAQI
18th Jul 2025271 AMAQI
18th Jul 2025272 AMAQI
18th Jul 2025263 AMAQI
18th Jul 2025214 AMAQI
21°C18/23°C
18th Jul 2025225 AMAQI
18th Jul 2025246 AMAQI
18th Jul 2025247 AMAQI
18th Jul 2025248 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20252610 AMAQI
18th Jul 20252811 AMAQI
18th Jul 20253312 PMAQI
18th Jul 2025321 PMAQI
18th Jul 2025312 PMAQI
18th Jul 2025303 PMAQI
18th Jul 2025304 PMAQI
18th Jul 2025305 PMAQI
18th Jul 2025306 PMAQI
18th Jul 2025287 PMAQI
18th Jul 2025278 PMAQI
18th Jul 2025329 PMAQI
18th Jul 20253210 PMAQI
18th Jul 20253211 PMAQI
19th Jul 20253212 AMAQI
19th Jul 2025321 AMAQI
19th Jul 2025322 AMAQI
19th Jul 2025343 AMAQI
19th Jul 2025394 AMAQI
20°C19/23°C
19th Jul 2025395 AMAQI
19th Jul 2025376 AMAQI
19th Jul 2025377 AMAQI
19th Jul 2025378 AMAQI
19th Jul 2025369 AMAQI
19th Jul 20254010 AMAQI
19th Jul 20254411 AMAQI
19th Jul 20254612 PMAQI
19th Jul 2025461 PMAQI
19th Jul 2025422 PMAQI
19th Jul 2025423 PMAQI
19th Jul 2025424 PMAQI
19th Jul 2025425 PMAQI
19th Jul 2025416 PMAQI
19th Jul 2025407 PMAQI
19th Jul 2025418 PMAQI
19th Jul 2025429 PMAQI
19th Jul 20254010 PMAQI
19th Jul 20254011 PMAQI
20th Jul 20253912 AMAQI
20th Jul 2025391 AMAQI
20th Jul 2025392 AMAQI
20th Jul 2025433 AMAQI
20th Jul 2025464 AMAQI
20°C19/23°C
20th Jul 2025485 AMAQI
20th Jul 2025476 AMAQI
20th Jul 2025477 AMAQI
20th Jul 2025478 AMAQI
20th Jul 2025489 AMAQI
20th Jul 20255010 AMAQI
20th Jul 20255311 AMAQI
20th Jul 20255312 PMAQI
20th Jul 2025501 PMAQI
20th Jul 2025502 PMAQI
20th Jul 2025493 PMAQI
20th Jul 2025484 PMAQI
20th Jul 2025485 PMAQI
20th Jul 2025476 PMAQI
20th Jul 2025467 PMAQI
20th Jul 2025458 PMAQI
20th Jul 2025429 PMAQI
20th Jul 20254110 PMAQI
20th Jul 20254111 PMAQI
21st Jul 20254212 AMAQI
21st Jul 2025431 AMAQI
21st Jul 2025422 AMAQI
21st Jul 2025423 AMAQI
21st Jul 2025384 AMAQI
19°C18/22°C
21st Jul 2025385 AMAQI
21st Jul 2025366 AMAQI
21st Jul 2025377 AMAQI
21st Jul 2025368 AMAQI
21st Jul 2025379 AMAQI
21st Jul 20253710 AMAQI
21st Jul 20253911 AMAQI
21st Jul 20254112 PMAQI
21st Jul 2025441 PMAQI
21st Jul 2025422 PMAQI
21st Jul 2025403 PMAQI
21st Jul 2025404 PMAQI
21st Jul 2025395 PMAQI
21st Jul 2025396 PMAQI
21st Jul 2025397 PMAQI
21st Jul 2025398 PMAQI
21st Jul 2025379 PMAQI
21st Jul 20253710 PMAQI
21st Jul 20253611 PMAQI
22nd Jul 20253512 AMAQI
22nd Jul 2025361 AMAQI
22nd Jul 2025342 AMAQI
22nd Jul 2025333 AMAQI
22nd Jul 2025264 AMAQI
19°C18/21°C
22nd Jul 2025255 AMAQI
22nd Jul 2025266 AMAQI
22nd Jul 2025287 AMAQI
22nd Jul 2025288 AMAQI
22nd Jul 2025289 AMAQI
22nd Jul 20252910 AMAQI
22nd Jul 20252811 AMAQI
22nd Jul 20252812 PMAQI
22nd Jul 2025291 PMAQI
22nd Jul 2025292 PMAQI
22nd Jul 2025303 PMAQI
22nd Jul 2025304 PMAQI
22nd Jul 2025305 PMAQI
22nd Jul 2025296 PMAQI
22nd Jul 2025307 PMAQI
22nd Jul 2025288 PMAQI
22nd Jul 2025269 PMAQI
22nd Jul 20252610 PMAQI
22nd Jul 20252611 PMAQI
23rd Jul 20252612 AMAQI
23rd Jul 2025271 AMAQI
23rd Jul 2025282 AMAQI
23rd Jul 2025263 AMAQI
23rd Jul 2025224 AMAQI
19°C18/22°C
23rd Jul 2025225 AMAQI
23rd Jul 2025236 AMAQI
23rd Jul 2025267 AMAQI
23rd Jul 2025268 AMAQI
23rd Jul 2025269 AMAQI
23rd Jul 20253110 AMAQI
23rd Jul 20253011 AMAQI
23rd Jul 20252812 PMAQI
23rd Jul 2025281 PMAQI
23rd Jul 2025302 PMAQI
23rd Jul 2025293 PMAQI
23rd Jul 2025304 PMAQI
23rd Jul 2025305 PMAQI
23rd Jul 2025296 PMAQI
23rd Jul 2025267 PMAQI
23rd Jul 2025278 PMAQI
23rd Jul 2025289 PMAQI
23rd Jul 20252810 PMAQI
23rd Jul 20252811 PMAQI
24th Jul 20252812 AMAQI
24th Jul 2025281 AMAQI
24th Jul 2025282 AMAQI
24th Jul 2025333 AMAQI
24th Jul 2025384 AMAQI
21°C19/25°C
24th Jul 2025465 AMAQI
24th Jul 2025386 AMAQI
24th Jul 2025337 AMAQI
24th Jul 2025338 AMAQI
24th Jul 2025369 AMAQI
24th Jul 20254110 AMAQI
24th Jul 20254411 AMAQI
24th Jul 20254112 PMAQI
24th Jul 2025411 PMAQI
24th Jul 2025412 PMAQI
24th Jul 2025393 PMAQI
24th Jul 2025374 PMAQI
24th Jul 2025355 PMAQI
24th Jul 2025346 PMAQI
24th Jul 2025357 PMAQI
24th Jul 2025348 PMAQI
24th Jul 2025319 PMAQI
24th Jul 20253010 PMAQI
24th Jul 20253111 PMAQI
25th Jul 20253112 AMAQI
25th Jul 2025301 AMAQI
25th Jul 2025312 AMAQI
25th Jul 2025283 AMAQI
25th Jul 2025234 AMAQI
21°C18/24°C
25th Jul 2025245 AMAQI
25th Jul 2025256 AMAQI
25th Jul 2025257 AMAQI
25th Jul 2025248 AMAQI
25th Jul 2025279 AMAQI
25th Jul 20253110 AMAQI
25th Jul 20253111 AMAQI
25th Jul 20252812 PMAQI
25th Jul 2025281 PMAQI
25th Jul 2025262 PMAQI
25th Jul 2025263 PMAQI
25th Jul 2025274 PMAQI
25th Jul 2025275 PMAQI
25th Jul 2025286 PMAQI
25th Jul 2025267 PMAQI
25th Jul 2025268 PMAQI
25th Jul 2025279 PMAQI
25th Jul 20252610 PMAQI
25th Jul 20252411 PMAQI
26th Jul 20252712 AMAQI
26th Jul 2025271 AMAQI
26th Jul 2025272 AMAQI
26th Jul 2025263 AMAQI
26th Jul 2025224 AMAQI
20°C18/23°C
26th Jul 2025215 AMAQI
26th Jul 2025226 AMAQI
26th Jul 2025237 AMAQI
26th Jul 2025248 AMAQI
26th Jul 2025319 AMAQI
26th Jul 20253910 AMAQI
26th Jul 20253311 AMAQI
26th Jul 20252712 PMAQI
26th Jul 2025271 PMAQI
26th Jul 2025282 PMAQI
26th Jul 2025263 PMAQI
26th Jul 2025264 PMAQI
26th Jul 2025245 PMAQI
26th Jul 2025246 PMAQI
26th Jul 2025237 PMAQI
26th Jul 2025248 PMAQI
26th Jul 2025239 PMAQI
26th Jul 20252310 PMAQI
26th Jul 20252311 PMAQI
27th Jul 20252412 AMAQI
27th Jul 2025261 AMAQI
27th Jul 2025282 AMAQI
27th Jul 2025283 AMAQI
27th Jul 2025274 AMAQI
20°C18/24°C
27th Jul 2025295 AMAQI
27th Jul 2025296 AMAQI
27th Jul 2025277 AMAQI
27th Jul 2025308 AMAQI
27th Jul 2025309 AMAQI
27th Jul 20253110 AMAQI
27th Jul 20252911 AMAQI
27th Jul 20252912 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025292 PMAQI
27th Jul 2025303 PMAQI
27th Jul 2025284 PMAQI
27th Jul 2025285 PMAQI
27th Jul 2025286 PMAQI
27th Jul 2025287 PMAQI
27th Jul 2025278 PMAQI
27th Jul 2025269 PMAQI
27th Jul 20252510 PMAQI
27th Jul 20252611 PMAQI
28th Jul 20252612 AMAQI
28th Jul 2025271 AMAQI
28th Jul 2025282 AMAQI
28th Jul 2025273 AMAQI
28th Jul 2025254 AMAQI
20°C18/23°C
28th Jul 2025265 AMAQI
28th Jul 2025276 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025278 AMAQI
28th Jul 2025289 AMAQI
28th Jul 20253110 AMAQI
28th Jul 20253111 AMAQI
28th Jul 20253212 PMAQI
28th Jul 2025321 PMAQI
28th Jul 2025322 PMAQI
28th Jul 2025323 PMAQI
28th Jul 2025334 PMAQI
28th Jul 2025325 PMAQI
28th Jul 2025316 PMAQI
28th Jul 2025307 PMAQI
28th Jul 2025298 PMAQI
28th Jul 2025309 PMAQI
28th Jul 20253010 PMAQI
28th Jul 20253011 PMAQI
29th Jul 20253012 AMAQI
29th Jul 2025301 AMAQI
29th Jul 2025322 AMAQI
29th Jul 2025343 AMAQI
29th Jul 2025384 AMAQI
20°C18/23°C
29th Jul 2025415 AMAQI
29th Jul 2025396 AMAQI
29th Jul 2025417 AMAQI
29th Jul 2025418 AMAQI
29th Jul 2025449 AMAQI
29th Jul 20255210 AMAQI
29th Jul 20255211 AMAQI
29th Jul 20254812 PMAQI
29th Jul 2025471 PMAQI
29th Jul 2025452 PMAQI
29th Jul 2025453 PMAQI
29th Jul 2025474 PMAQI
29th Jul 2025475 PMAQI
29th Jul 2025446 PMAQI
29th Jul 2025417 PMAQI
29th Jul 2025388 PMAQI
29th Jul 2025389 PMAQI
29th Jul 20253810 PMAQI
29th Jul 20253811 PMAQI
30th Jul 20253912 AMAQI
30th Jul 2025401 AMAQI
30th Jul 2025432 AMAQI
30th Jul 2025483 AMAQI
30th Jul 2025584 AMAQI
20°C18/24°C
30th Jul 2025535 AMAQI
30th Jul 2025526 AMAQI
30th Jul 2025527 AMAQI
30th Jul 2025518 AMAQI
30th Jul 2025509 AMAQI
30th Jul 20255410 AMAQI
30th Jul 20255611 AMAQI
30th Jul 20255812 PMAQI
30th Jul 2025571 PMAQI
30th Jul 2025582 PMAQI
30th Jul 2025583 PMAQI
30th Jul 2025584 PMAQI
30th Jul 2025585 PMAQI
30th Jul 2025586 PMAQI
30th Jul 2025587 PMAQI
30th Jul 2025588 PMAQI
30th Jul 2025529 PMAQI
30th Jul 20254810 PMAQI
30th Jul 20255011 PMAQI
31st Jul 20255112 AMAQI
31st Jul 2025521 AMAQI
31st Jul 2025512 AMAQI
31st Jul 2025523 AMAQI
31st Jul 2025554 AMAQI
21°C18/24°C
31st Jul 2025535 AMAQI
31st Jul 2025546 AMAQI
31st Jul 2025567 AMAQI
31st Jul 2025588 AMAQI
31st Jul 2025589 AMAQI
31st Jul 20255610 AMAQI
31st Jul 20255711 AMAQI
31st Jul 20255812 PMAQI
31st Jul 2025581 PMAQI
31st Jul 2025592 PMAQI
31st Jul 2025593 PMAQI
31st Jul 2025574 PMAQI
31st Jul 2025585 PMAQI
31st Jul 2025586 PMAQI
31st Jul 2025557 PMAQI
31st Jul 2025538 PMAQI
31st Jul 2025519 PMAQI
31st Jul 20255010 PMAQI
31st Jul 20254911 PMAQI
1st Aug 20254612 AMAQI
1st Aug 2025461 AMAQI
1st Aug 2025462 AMAQI
1st Aug 2025473 AMAQI
1st Aug 2025524 AMAQI
20°C18/24°C
1st Aug 2025555 AMAQI
1st Aug 2025596 AMAQI
1st Aug 2025587 AMAQI
1st Aug 2025588 AMAQI
1st Aug 2025589 AMAQI
1st Aug 20256010 AMAQI
1st Aug 20256011 AMAQI
1st Aug 20256012 PMAQI
1st Aug 2025611 PMAQI
1st Aug 2025632 PMAQI
1st Aug 2025633 PMAQI
1st Aug 2025614 PMAQI
1st Aug 2025595 PMAQI
1st Aug 2025586 PMAQI
1st Aug 2025587 PMAQI
1st Aug 2025538 PMAQI
1st Aug 2025479 PMAQI
1st Aug 20254610 PMAQI
1st Aug 20254311 PMAQI
2nd Aug 20254312 AMAQI
2nd Aug 2025421 AMAQI
2nd Aug 2025422 AMAQI
2nd Aug 2025443 AMAQI
2nd Aug 2025474 AMAQI
20°C17/23°C
2nd Aug 2025475 AMAQI
2nd Aug 2025516 AMAQI
2nd Aug 2025527 AMAQI
2nd Aug 2025538 AMAQI
2nd Aug 2025549 AMAQI
2nd Aug 20255410 AMAQI
2nd Aug 20255611 AMAQI
2nd Aug 20255812 PMAQI
2nd Aug 2025571 PMAQI
2nd Aug 2025582 PMAQI
2nd Aug 2025583 PMAQI
2nd Aug 2025564 PMAQI
2nd Aug 2025545 PMAQI
2nd Aug 2025516 PMAQI
2nd Aug 2025507 PMAQI
2nd Aug 2025448 PMAQI
2nd Aug 2025409 PMAQI
2nd Aug 20253610 PMAQI
2nd Aug 20253711 PMAQI
3rd Aug 20253612 AMAQI
3rd Aug 2025371 AMAQI
3rd Aug 2025392 AMAQI
3rd Aug 2025423 AMAQI
3rd Aug 2025474 AMAQI
20°C17/24°C
3rd Aug 2025545 AMAQI
3rd Aug 2025586 AMAQI
3rd Aug 2025627 AMAQI
3rd Aug 2025568 AMAQI
3rd Aug 2025559 AMAQI
3rd Aug 20255410 AMAQI
3rd Aug 20255411 AMAQI
3rd Aug 20255412 PMAQI
3rd Aug 2025541 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025563 PMAQI
3rd Aug 2025564 PMAQI
3rd Aug 2025555 PMAQI
3rd Aug 2025556 PMAQI
3rd Aug 2025547 PMAQI
3rd Aug 2025538 PMAQI
3rd Aug 2025529 PMAQI
3rd Aug 20255410 PMAQI
3rd Aug 20255411 PMAQI
4th Aug 20255312 AMAQI
4th Aug 2025541 AMAQI
4th Aug 2025542 AMAQI
4th Aug 2025553 AMAQI
4th Aug 2025564 AMAQI
20°C18/24°C
4th Aug 2025565 AMAQI
4th Aug 2025576 AMAQI
4th Aug 2025587 AMAQI
4th Aug 2025618 AMAQI
4th Aug 2025669 AMAQI
4th Aug 20256810 AMAQI
4th Aug 20257811 AMAQI
4th Aug 20257912 PMAQI
4th Aug 2025821 PMAQI
4th Aug 2025862 PMAQI
4th Aug 2025773 PMAQI
4th Aug 2025734 PMAQI
4th Aug 2025685 PMAQI
4th Aug 2025666 PMAQI
4th Aug 2025597 PMAQI
4th Aug 2025608 PMAQI
4th Aug 2025619 PMAQI
4th Aug 20256210 PMAQI
4th Aug 20255911 PMAQI
5th Aug 20255812 AMAQI
5th Aug 2025581 AMAQI
5th Aug 2025602 AMAQI
5th Aug 2025613 AMAQI
5th Aug 2025614 AMAQI
20°C17/24°C
5th Aug 2025645 AMAQI
5th Aug 2025656 AMAQI
5th Aug 2025647 AMAQI
5th Aug 2025708 AMAQI
5th Aug 2025749 AMAQI
5th Aug 20257510 AMAQI
5th Aug 20257311 AMAQI
5th Aug 20257312 PMAQI
5th Aug 2025791 PMAQI
5th Aug 2025812 PMAQI
5th Aug 2025823 PMAQI
5th Aug 2025784 PMAQI
5th Aug 2025775 PMAQI
5th Aug 2025746 PMAQI
5th Aug 2025687 PMAQI
5th Aug 2025678 PMAQI
5th Aug 2025669 PMAQI
5th Aug 20256210 PMAQI
5th Aug 20255911 PMAQI
6th Aug 20255812 AMAQI
6th Aug 2025581 AMAQI
6th Aug 2025582 AMAQI
6th Aug 2025583 AMAQI
6th Aug 2025584 AMAQI
21°C17/24°C
6th Aug 2025585 AMAQI
6th Aug 2025616 AMAQI
6th Aug 2025637 AMAQI
6th Aug 2025648 AMAQI
6th Aug 2025699 AMAQI
6th Aug 20257810 AMAQI
6th Aug 20258811 AMAQI
6th Aug 20258712 PMAQI
6th Aug 2025801 PMAQI
6th Aug 2025762 PMAQI
6th Aug 2025713 PMAQI
6th Aug 2025694 PMAQI
6th Aug 2025685 PMAQI
6th Aug 2025666 PMAQI
6th Aug 2025617 PMAQI
6th Aug 2025648 PMAQI
6th Aug 2025629 PMAQI
6th Aug 20256210 PMAQI
6th Aug 20256111 PMAQI
7th Aug 20256212 AMAQI
7th Aug 2025611 AMAQI
7th Aug 2025602 AMAQI
7th Aug 2025613 AMAQI
7th Aug 2025624 AMAQI
22°C18/27°C
7th Aug 2025645 AMAQI
7th Aug 2025626 AMAQI
7th Aug 2025657 AMAQI
7th Aug 2025638 AMAQI
7th Aug 2025679 AMAQI
7th Aug 20257010 AMAQI
7th Aug 20257611 AMAQI
7th Aug 20257312 PMAQI
7th Aug 2025701 PMAQI
7th Aug 2025682 PMAQI
7th Aug 2025663 PMAQI
7th Aug 2025684 PMAQI
7th Aug 2025665 PMAQI
7th Aug 2025646 PMAQI
7th Aug 2025627 PMAQI
7th Aug 2025618 PMAQI
7th Aug 2025609 PMAQI
7th Aug 20256010 PMAQI
7th Aug 20255811 PMAQI
8th Aug 20256012 AMAQI
8th Aug 2025591 AMAQI
8th Aug 2025602 AMAQI
8th Aug 2025613 AMAQI
8th Aug 2025574 AMAQI
23°C19/28°C
8th Aug 2025595 AMAQI
8th Aug 2025586 AMAQI
8th Aug 2025577 AMAQI
8th Aug 2025548 AMAQI
8th Aug 2025549 AMAQI
8th Aug 20255610 AMAQI
8th Aug 20255711 AMAQI
8th Aug 20256012 PMAQI
8th Aug 2025631 PMAQI
8th Aug 2025612 PMAQI
8th Aug 2025613 PMAQI
8th Aug 2025604 PMAQI
8th Aug 2025595 PMAQI
8th Aug 2025586 PMAQI
8th Aug 2025587 PMAQI
8th Aug 2025588 PMAQI
8th Aug 2025569 PMAQI
8th Aug 20255610 PMAQI
8th Aug 20255511 PMAQI
9th Aug 20255512 AMAQI
9th Aug 2025561 AMAQI
9th Aug 2025562 AMAQI
9th Aug 2025553 AMAQI
9th Aug 2025474 AMAQI
22°C20/25°C
9th Aug 2025485 AMAQI
9th Aug 2025526 AMAQI
9th Aug 2025527 AMAQI
9th Aug 2025518 AMAQI
9th Aug 2025519 AMAQI
9th Aug 20255110 AMAQI
9th Aug 20255311 AMAQI
9th Aug 20255412 PMAQI
9th Aug 2025541 PMAQI
9th Aug 2025552 PMAQI
9th Aug 2025553 PMAQI
9th Aug 2025554 PMAQI
9th Aug 2025565 PMAQI
9th Aug 2025566 PMAQI
9th Aug 2025557 PMAQI
9th Aug 2025548 PMAQI
9th Aug 2025569 PMAQI
9th Aug 20255510 PMAQI
9th Aug 20255511 PMAQI
10th Aug 20255512 AMAQI
10th Aug 2025541 AMAQI
10th Aug 2025542 AMAQI
10th Aug 2025533 AMAQI
10th Aug 2025524 AMAQI
21°C18/23°C
10th Aug 2025525 AMAQI
5 AM10th Aug 2025556 AMAQI
10th Aug 2025547 AMAQI
10th Aug 2025558 AMAQI
10th Aug 2025609 AMAQI
10th Aug 20256610 AMAQI
10th Aug 20256011 AMAQI
10th Aug 20256012 PMAQI
12 PM10th Aug 2025601 PMAQI
10th Aug 2025602 PMAQI
10th Aug 2025593 PMAQI
10th Aug 2025604 PMAQI
10th Aug 2025585 PMAQI
10th Aug 2025586 PMAQI
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
10 AM - 7 PM
48AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
5 AM - 9 AM
44AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 7 PM (Avg. 48), while the lowest AQI was between 5 AM to 9 AM (Avg. 44).
Night time
Avg. Highest Time
12 AM - 11 PM
42AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
42AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 42), while the lowest AQI was between 12 AM to 11 PM (Avg. 42).
2025 Days Vs Air Quality
Chula Vista, California, United States
2025
54%
119
45%
99
1%
3
Total number of days with different AQI categories in last 222 days in 2025 (143 days remaining)
Good
119 DaysModerate
99 DaysPoor
3 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 54%
Health Risk Level:
Considerable
In 2025, 54% of 222 days were within WHO’s safe air quality limits, and 46% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Chula Vista, California, United States
AQI levels in 2025
AQI
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.
1st January 2025
114AQI
114AQI
2nd January 2025
74AQI
74AQI
3rd January 2025
74AQI
74AQI
4th January 2025
56AQI
56AQI
5th January 2025
48AQI
48AQI
6th January 2025
51AQI
51AQI
7th January 2025
51AQI
51AQI
8th January 2025
70AQI
70AQI
9th January 2025
57AQI
57AQI
10th January 2025
43AQI
43AQI
11th January 2025
57AQI
57AQI
12th January 2025
38AQI
38AQI
13th January 2025
43AQI
43AQI
14th January 2025
39AQI
39AQI
15th January 2025
47AQI
47AQI
16th January 2025
49AQI
49AQI
17th January 2025
50AQI
50AQI
18th January 2025
52AQI
52AQI
19th January 2025
62AQI
62AQI
20th January 2025
53AQI
53AQI
21st January 2025
56AQI
56AQI
22nd January 2025
47AQI
47AQI
23rd January 2025
52AQI
52AQI
24th January 2025
101AQI
101AQI
25th January 2025
102AQI
102AQI
26th January 2025
37AQI
37AQI
27th January 2025
31AQI
31AQI
28th January 2025
47AQI
47AQI
29th January 2025
49AQI
49AQI
30th January 2025
59AQI
59AQI
31st January 2025
62AQI
62AQI
1st February 2025
70AQI
70AQI
2nd February 2025
77AQI
77AQI
3rd February 2025
77AQI
77AQI
4th February 2025
59AQI
59AQI
5th February 2025
46AQI
46AQI
6th February 2025
38AQI
38AQI
7th February 2025
34AQI
34AQI
8th February 2025
29AQI
29AQI
9th February 2025
54AQI
54AQI
10th February 2025
60AQI
60AQI
11th February 2025
42AQI
42AQI
12th February 2025
45AQI
45AQI
13th February 2025
27AQI
27AQI
14th February 2025
42AQI
42AQI
15th February 2025
45AQI
45AQI
16th February 2025
48AQI
48AQI
17th February 2025
73AQI
73AQI
18th February 2025
59AQI
59AQI
19th February 2025
71AQI
71AQI
20th February 2025
70AQI
70AQI
21st February 2025
58AQI
58AQI
22nd February 2025
62AQI
62AQI
23rd February 2025
52AQI
52AQI
24th February 2025
59AQI
59AQI
25th February 2025
63AQI
63AQI
26th February 2025
77AQI
77AQI
27th February 2025
67AQI
67AQI
28th February 2025
43AQI
43AQI
1st March 2025
37AQI
37AQI
2nd March 2025
40AQI
40AQI
3rd March 2025
33AQI
33AQI
4th March 2025
41AQI
41AQI
5th March 2025
54AQI
54AQI
6th March 2025
33AQI
33AQI
7th March 2025
31AQI
31AQI
8th March 2025
36AQI
36AQI
9th March 2025
42AQI
42AQI
10th March 2025
51AQI
51AQI
11th March 2025
40AQI
40AQI
12th March 2025
30AQI
30AQI
13th March 2025
22AQI
22AQI
14th March 2025
21AQI
21AQI
15th March 2025
32AQI
32AQI
16th March 2025
41AQI
41AQI
17th March 2025
61AQI
61AQI
18th March 2025
42AQI
42AQI
19th March 2025
32AQI
32AQI
20th March 2025
41AQI
41AQI
21st March 2025
59AQI
59AQI
22nd March 2025
64AQI
64AQI
23rd March 2025
63AQI
63AQI
24th March 2025
61AQI
61AQI
25th March 2025
68AQI
68AQI
26th March 2025
34AQI
34AQI
27th March 2025
22AQI
22AQI
28th March 2025
32AQI
32AQI
29th March 2025
43AQI
43AQI
30th March 2025
44AQI
44AQI
31st March 2025
30AQI
30AQI
1st April 2025
29AQI
29AQI
2nd April 2025
36AQI
36AQI
3rd April 2025
39AQI
39AQI
4th April 2025
34AQI
34AQI
5th April 2025
39AQI
39AQI
6th April 2025
34AQI
34AQI
7th April 2025
45AQI
45AQI
8th April 2025
58AQI
58AQI
9th April 2025
55AQI
55AQI
10th April 2025
54AQI
54AQI
11th April 2025
59AQI
59AQI
12th April 2025
64AQI
64AQI
13th April 2025
60AQI
60AQI
14th April 2025
57AQI
57AQI
15th April 2025
46AQI
46AQI
16th April 2025
39AQI
39AQI
17th April 2025
27AQI
27AQI
18th April 2025
25AQI
25AQI
19th April 2025
32AQI
32AQI
20th April 2025
43AQI
43AQI
21st April 2025
50AQI
50AQI
22nd April 2025
42AQI
42AQI
23rd April 2025
37AQI
37AQI
24th April 2025
35AQI
35AQI
25th April 2025
32AQI
32AQI
26th April 2025
27AQI
27AQI
27th April 2025
22AQI
22AQI
28th April 2025
24AQI
24AQI
29th April 2025
39AQI
39AQI
30th April 2025
50AQI
50AQI
1st May 2025
43AQI
43AQI
2nd May 2025
40AQI
40AQI
3rd May 2025
36AQI
36AQI
4th May 2025
37AQI
37AQI
5th May 2025
34AQI
34AQI
6th May 2025
49AQI
49AQI
7th May 2025
45AQI
45AQI
8th May 2025
50AQI
50AQI
9th May 2025
55AQI
55AQI
10th May 2025
52AQI
52AQI
11th May 2025
59AQI
59AQI
12th May 2025
56AQI
56AQI
13th May 2025
40AQI
40AQI
14th May 2025
44AQI
44AQI
15th May 2025
54AQI
54AQI
16th May 2025
57AQI
57AQI
17th May 2025
50AQI
50AQI
18th May 2025
40AQI
40AQI
19th May 2025
53AQI
53AQI
20th May 2025
62AQI
62AQI
21st May 2025
61AQI
61AQI
22nd May 2025
62AQI
62AQI
23rd May 2025
64AQI
64AQI
24th May 2025
58AQI
58AQI
25th May 2025
55AQI
55AQI
26th May 2025
53AQI
53AQI
27th May 2025
46AQI
46AQI
28th May 2025
48AQI
48AQI
29th May 2025
43AQI
43AQI
30th May 2025
51AQI
51AQI
31st May 2025
68AQI
68AQI
1st June 2025
55AQI
55AQI
2nd June 2025
48AQI
48AQI
3rd June 2025
32AQI
32AQI
4th June 2025
31AQI
31AQI
5th June 2025
32AQI
32AQI
6th June 2025
33AQI
33AQI
7th June 2025
36AQI
36AQI
8th June 2025
39AQI
39AQI
9th June 2025
48AQI
48AQI
10th June 2025
50AQI
50AQI
11th June 2025
47AQI
47AQI
12th June 2025
55AQI
55AQI
13th June 2025
59AQI
59AQI
14th June 2025
59AQI
59AQI
15th June 2025
58AQI
58AQI
16th June 2025
62AQI
62AQI
17th June 2025
63AQI
63AQI
18th June 2025
64AQI
64AQI
19th June 2025
60AQI
60AQI
20th June 2025
63AQI
63AQI
21st June 2025
60AQI
60AQI
22nd June 2025
58AQI
58AQI
23rd June 2025
61AQI
61AQI
24th June 2025
68AQI
68AQI
25th June 2025
59AQI
59AQI
26th June 2025
54AQI
54AQI
27th June 2025
55AQI
55AQI
28th June 2025
53AQI
53AQI
29th June 2025
51AQI
51AQI
30th June 2025
45AQI
45AQI
1st July 2025
46AQI
46AQI
2nd July 2025
45AQI
45AQI
3rd July 2025
45AQI
45AQI
4th July 2025
47AQI
47AQI
5th July 2025
60AQI
60AQI
6th July 2025
57AQI
57AQI
7th July 2025
57AQI
57AQI
8th July 2025
56AQI
56AQI
9th July 2025
50AQI
50AQI
10th July 2025
48AQI
48AQI
11th July 2025
56AQI
56AQI
12th July 2025
54AQI
54AQI
13th July 2025
51AQI
51AQI
14th July 2025
44AQI
44AQI
15th July 2025
39AQI
39AQI
16th July 2025
34AQI
34AQI
17th July 2025
28AQI
28AQI
18th July 2025
28AQI
28AQI
19th July 2025
39AQI
39AQI
20th July 2025
46AQI
46AQI
21st July 2025
39AQI
39AQI
22nd July 2025
29AQI
29AQI
23rd July 2025
27AQI
27AQI
24th July 2025
35AQI
35AQI
25th July 2025
27AQI
27AQI
26th July 2025
25AQI
25AQI
27th July 2025
28AQI
28AQI
28th July 2025
29AQI
29AQI
29th July 2025
41AQI
41AQI
30th July 2025
52AQI
52AQI
31st July 2025
55AQI
55AQI
1st August 2025
54AQI
54AQI
2nd August 2025
48AQI
48AQI
3rd August 2025
51AQI
51AQI
4th August 2025
63AQI
63AQI
5th August 2025
68AQI
68AQI
6th August 2025
65AQI
65AQI
7th August 2025
64AQI
64AQI
8th August 2025
58AQI
58AQI
9th August 2025
53AQI
53AQI
57AQI
55AQI
41AQI
41AQI
50AQI
52AQI
42AQI
58AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202549AQI
13
15
3
11
17
23
8
23
7
15
16
11
19
22
9
1
8
119
99
3
Highest AQI recorded in
August58AQI
Lowest AQI recorded in
April41AQI
202452AQI
19
12
20
9
27
4
18
12
16
15
9
20
15
16
7
24
10
19
1
8
22
1
22
8
6
25
177
186
2
Highest AQI recorded in
October63AQI
Lowest AQI recorded in
March41AQI
202390AQI
9
7
1
14
5
12
1
10
17
12
1
3
20
1
6
20
11
18
12
5
26
18
12
1
13
17
8
23
12
16
1
10
21
138
189
4
1
1
30
Highest AQI recorded in
January241AQI
Lowest AQI recorded in
May45AQI
202274AQI
25
5
18
4
17
14
9
8
15
16
8
16
6
18
3
2
5
11
1
1
9
6
24
1
8
20
2
10
21
139
144
4
1
15
Highest AQI recorded in
September204AQI
Lowest AQI recorded in
July40AQI
202149AQI
20
6
13
15
29
2
17
13
18
13
22
8
24
7
12
19
9
18
3
23
8
12
18
18
13
217
140
3
Highest AQI recorded in
September65AQI
Lowest AQI recorded in
January39AQI
202052AQI
12
1
18
2
15
3
23
7
23
8
17
14
4
20
5
1
7
20
3
15
15
15
16
149
106
8
1
Highest AQI recorded in
September80AQI
Lowest AQI recorded in
March35AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
90AQILeast Polluted Year Recorded
2025(Avg.)
49AQIChula Vista's annual 2025 AQI (49) shows an average percentage change of -18.5% (improved AQI) compared to previous years: 2020 (52), 2021 (49), 2022 (74), 2023 (90), 2024 (52).
