San Diego, 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 Diego, California, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2025
66AQILowest AQI recorded on
2nd Aug 2025
46AQISame Day Analysis (9th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 54 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
San Diego, California, United States
AQI
Day
Night
.
5 AM9th Aug 2025
7 PM
4 AM10th Aug 2025
Day time
Avg. Highest Time
5PM9th Aug
58AQI
Avg. Lowest Time
10AM9th Aug
51AQI
Night time
Avg. Highest Time
9PM9th Aug
57AQI
Avg. Lowest Time
5AM9th Aug
50AQI
In the last 24 hours,
San Diego's AQI reached its highest point of 58 at 5 PM during the Day, while the lowest point, 50, was recorded at 5 AM during the Night between 9th Aug and 10th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
San Diego, 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 2025565 AMAQI
11th Jul 2025576 AMAQI
11th Jul 2025587 AMAQI
11th Jul 2025598 AMAQI
11th Jul 2025589 AMAQI
11th Jul 20255810 AMAQI
11th Jul 20255911 AMAQI
11th Jul 20256012 PMAQI
11th Jul 2025611 PMAQI
11th Jul 2025602 PMAQI
11th Jul 2025573 PMAQI
11th Jul 2025564 PMAQI
11th Jul 2025565 PMAQI
11th Jul 2025556 PMAQI
11th Jul 2025557 PMAQI
11th Jul 2025548 PMAQI
11th Jul 2025529 PMAQI
11th Jul 20255110 PMAQI
11th Jul 20255111 PMAQI
12th Jul 20255012 AMAQI
12th Jul 2025501 AMAQI
12th Jul 2025502 AMAQI
12th Jul 2025513 AMAQI
12th Jul 2025504 AMAQI
20°C18/23°C
12th Jul 2025515 AMAQI
12th Jul 2025526 AMAQI
12th Jul 2025547 AMAQI
12th Jul 2025548 AMAQI
12th Jul 2025549 AMAQI
12th Jul 20255310 AMAQI
12th Jul 20255411 AMAQI
12th Jul 20255412 PMAQI
12th Jul 2025551 PMAQI
12th Jul 2025552 PMAQI
12th Jul 2025563 PMAQI
12th Jul 2025554 PMAQI
12th Jul 2025545 PMAQI
12th Jul 2025536 PMAQI
12th Jul 2025517 PMAQI
12th Jul 2025508 PMAQI
12th Jul 2025479 PMAQI
12th Jul 20254810 PMAQI
12th Jul 20254711 PMAQI
13th Jul 20254612 AMAQI
13th Jul 2025471 AMAQI
13th Jul 2025462 AMAQI
13th Jul 2025463 AMAQI
13th Jul 2025434 AMAQI
20°C16/24°C
13th Jul 2025425 AMAQI
13th Jul 2025456 AMAQI
13th Jul 2025467 AMAQI
13th Jul 2025488 AMAQI
13th Jul 2025489 AMAQI
13th Jul 20254810 AMAQI
13th Jul 20255011 AMAQI
13th Jul 20255112 PMAQI
13th Jul 2025521 PMAQI
13th Jul 2025542 PMAQI
13th Jul 2025543 PMAQI
13th Jul 2025534 PMAQI
13th Jul 2025525 PMAQI
13th Jul 2025506 PMAQI
13th Jul 2025477 PMAQI
13th Jul 2025458 PMAQI
13th Jul 2025439 PMAQI
13th Jul 20254310 PMAQI
13th Jul 20254211 PMAQI
14th Jul 20254112 AMAQI
14th Jul 2025411 AMAQI
14th Jul 2025412 AMAQI
14th Jul 2025413 AMAQI
14th Jul 2025384 AMAQI
21°C18/24°C
14th Jul 2025385 AMAQI
14th Jul 2025396 AMAQI
14th Jul 2025427 AMAQI
14th Jul 2025458 AMAQI
14th Jul 2025459 AMAQI
14th Jul 20254910 AMAQI
14th Jul 20254811 AMAQI
14th Jul 20255112 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025512 PMAQI
14th Jul 2025493 PMAQI
14th Jul 2025484 PMAQI
14th Jul 2025465 PMAQI
14th Jul 2025446 PMAQI
14th Jul 2025427 PMAQI
14th Jul 2025428 PMAQI
14th Jul 2025369 PMAQI
14th Jul 20253410 PMAQI
14th Jul 20253311 PMAQI
15th Jul 20253312 AMAQI
15th Jul 2025321 AMAQI
15th Jul 2025342 AMAQI
15th Jul 2025333 AMAQI
15th Jul 2025294 AMAQI
20°C18/24°C
15th Jul 2025315 AMAQI
15th Jul 2025356 AMAQI
15th Jul 2025387 AMAQI
15th Jul 2025388 AMAQI
15th Jul 2025409 AMAQI
15th Jul 20254310 AMAQI
15th Jul 20254711 AMAQI
15th Jul 20255112 PMAQI
15th Jul 2025511 PMAQI
15th Jul 2025522 PMAQI
15th Jul 2025503 PMAQI
15th Jul 2025464 PMAQI
15th Jul 2025425 PMAQI
15th Jul 2025386 PMAQI
15th Jul 2025367 PMAQI
15th Jul 2025358 PMAQI
15th Jul 2025339 PMAQI
15th Jul 20253210 PMAQI
15th Jul 20253011 PMAQI
16th Jul 20253012 AMAQI
16th Jul 2025301 AMAQI
16th Jul 2025292 AMAQI
16th Jul 2025293 AMAQI
16th Jul 2025274 AMAQI
20°C18/24°C
16th Jul 2025275 AMAQI
16th Jul 2025296 AMAQI
16th Jul 2025317 AMAQI
16th Jul 2025328 AMAQI
16th Jul 2025359 AMAQI
16th Jul 20253710 AMAQI
16th Jul 20253811 AMAQI
16th Jul 20254212 PMAQI
16th Jul 2025441 PMAQI
16th Jul 2025452 PMAQI
16th Jul 2025423 PMAQI
16th Jul 2025394 PMAQI
16th Jul 2025365 PMAQI
16th Jul 2025346 PMAQI
16th Jul 2025317 PMAQI
16th Jul 2025308 PMAQI
16th Jul 2025269 PMAQI
16th Jul 20252410 PMAQI
16th Jul 20252411 PMAQI
17th Jul 20252412 AMAQI
17th Jul 2025261 AMAQI
17th Jul 2025262 AMAQI
17th Jul 2025243 AMAQI
17th Jul 2025214 AMAQI
21°C18/23°C
17th Jul 2025215 AMAQI
17th Jul 2025216 AMAQI
17th Jul 2025227 AMAQI
17th Jul 2025238 AMAQI
17th Jul 2025269 AMAQI
17th Jul 20253110 AMAQI
17th Jul 20252911 AMAQI
17th Jul 20253012 PMAQI
17th Jul 2025311 PMAQI
17th Jul 2025332 PMAQI
17th Jul 2025333 PMAQI
17th Jul 2025344 PMAQI
17th Jul 2025325 PMAQI
17th Jul 2025306 PMAQI
17th Jul 2025277 PMAQI
17th Jul 2025268 PMAQI
17th Jul 2025279 PMAQI
17th Jul 20252610 PMAQI
17th Jul 20252611 PMAQI
18th Jul 20252512 AMAQI
18th Jul 2025251 AMAQI
18th Jul 2025242 AMAQI
18th Jul 2025233 AMAQI
18th Jul 2025204 AMAQI
21°C18/25°C
18th Jul 2025225 AMAQI
18th Jul 2025226 AMAQI
18th Jul 2025227 AMAQI
18th Jul 2025238 AMAQI
18th Jul 2025249 AMAQI
18th Jul 20252510 AMAQI
18th Jul 20252611 AMAQI
18th Jul 20252912 PMAQI
18th Jul 2025301 PMAQI
18th Jul 2025312 PMAQI
18th Jul 2025313 PMAQI
18th Jul 2025314 PMAQI
18th Jul 2025315 PMAQI
18th Jul 2025316 PMAQI
18th Jul 2025277 PMAQI
18th Jul 2025288 PMAQI
18th Jul 2025339 PMAQI
18th Jul 20253410 PMAQI
18th Jul 20253211 PMAQI
19th Jul 20253112 AMAQI
19th Jul 2025321 AMAQI
19th Jul 2025312 AMAQI
19th Jul 2025333 AMAQI
19th Jul 2025364 AMAQI
21°C19/23°C
19th Jul 2025375 AMAQI
19th Jul 2025366 AMAQI
19th Jul 2025377 AMAQI
19th Jul 2025368 AMAQI
19th Jul 2025369 AMAQI
19th Jul 20253910 AMAQI
19th Jul 20254211 AMAQI
19th Jul 20254512 PMAQI
19th Jul 2025461 PMAQI
19th Jul 2025472 PMAQI
19th Jul 2025453 PMAQI
19th Jul 2025444 PMAQI
19th Jul 2025425 PMAQI
19th Jul 2025426 PMAQI
19th Jul 2025407 PMAQI
19th Jul 2025408 PMAQI
19th Jul 2025429 PMAQI
19th Jul 20254010 PMAQI
19th Jul 20254011 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025391 AMAQI
20th Jul 2025402 AMAQI
20th Jul 2025423 AMAQI
20th Jul 2025434 AMAQI
21°C19/24°C
20th Jul 2025455 AMAQI
20th Jul 2025456 AMAQI
20th Jul 2025467 AMAQI
20th Jul 2025468 AMAQI
20th Jul 2025489 AMAQI
20th Jul 20254810 AMAQI
20th Jul 20254911 AMAQI
20th Jul 20255012 PMAQI
20th Jul 2025511 PMAQI
20th Jul 2025512 PMAQI
20th Jul 2025483 PMAQI
20th Jul 2025484 PMAQI
20th Jul 2025485 PMAQI
20th Jul 2025476 PMAQI
20th Jul 2025467 PMAQI
20th Jul 2025458 PMAQI
20th Jul 2025439 PMAQI
20th Jul 20254110 PMAQI
20th Jul 20254011 PMAQI
21st Jul 20254012 AMAQI
21st Jul 2025391 AMAQI
21st Jul 2025392 AMAQI
21st Jul 2025393 AMAQI
21st Jul 2025354 AMAQI
20°C18/23°C
21st Jul 2025365 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 20254012 PMAQI
21st Jul 2025411 PMAQI
21st Jul 2025422 PMAQI
21st Jul 2025413 PMAQI
21st Jul 2025404 PMAQI
21st Jul 2025405 PMAQI
21st Jul 2025396 PMAQI
21st Jul 2025387 PMAQI
21st Jul 2025368 PMAQI
21st Jul 2025339 PMAQI
21st Jul 20253210 PMAQI
21st Jul 20253111 PMAQI
22nd Jul 20253112 AMAQI
22nd Jul 2025311 AMAQI
22nd Jul 2025312 AMAQI
22nd Jul 2025303 AMAQI
22nd Jul 2025254 AMAQI
20°C18/23°C
22nd Jul 2025255 AMAQI
22nd Jul 2025256 AMAQI
22nd Jul 2025277 AMAQI
22nd Jul 2025268 AMAQI
22nd Jul 2025279 AMAQI
22nd Jul 20252710 AMAQI
22nd Jul 20252811 AMAQI
22nd Jul 20252812 PMAQI
22nd Jul 2025281 PMAQI
22nd Jul 2025292 PMAQI
22nd Jul 2025303 PMAQI
22nd Jul 2025304 PMAQI
22nd Jul 2025295 PMAQI
22nd Jul 2025296 PMAQI
22nd Jul 2025287 PMAQI
22nd Jul 2025278 PMAQI
22nd Jul 2025259 PMAQI
22nd Jul 20252510 PMAQI
22nd Jul 20252511 PMAQI
23rd Jul 20252512 AMAQI
23rd Jul 2025251 AMAQI
23rd Jul 2025252 AMAQI
23rd Jul 2025253 AMAQI
23rd Jul 2025234 AMAQI
20°C18/23°C
23rd Jul 2025235 AMAQI
23rd Jul 2025246 AMAQI
23rd Jul 2025247 AMAQI
23rd Jul 2025258 AMAQI
23rd Jul 2025259 AMAQI
23rd Jul 20252810 AMAQI
23rd Jul 20252811 AMAQI
23rd Jul 20252812 PMAQI
23rd Jul 2025281 PMAQI
23rd Jul 2025292 PMAQI
23rd Jul 2025293 PMAQI
23rd Jul 2025304 PMAQI
23rd Jul 2025305 PMAQI
23rd Jul 2025306 PMAQI
23rd Jul 2025267 PMAQI
23rd Jul 2025268 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 2025293 AMAQI
24th Jul 2025304 AMAQI
21°C19/25°C
24th Jul 2025335 AMAQI
24th Jul 2025326 AMAQI
24th Jul 2025317 AMAQI
24th Jul 2025328 AMAQI
24th Jul 2025339 AMAQI
24th Jul 20253810 AMAQI
24th Jul 20254111 AMAQI
24th Jul 20254212 PMAQI
24th Jul 2025421 PMAQI
24th Jul 2025412 PMAQI
24th Jul 2025403 PMAQI
24th Jul 2025384 PMAQI
24th Jul 2025355 PMAQI
24th Jul 2025326 PMAQI
24th Jul 2025327 PMAQI
24th Jul 2025318 PMAQI
24th Jul 2025269 PMAQI
24th Jul 20252610 PMAQI
24th Jul 20252611 PMAQI
25th Jul 20252612 AMAQI
25th Jul 2025261 AMAQI
25th Jul 2025262 AMAQI
25th Jul 2025243 AMAQI
25th Jul 2025224 AMAQI
21°C18/24°C
25th Jul 2025225 AMAQI
25th Jul 2025246 AMAQI
25th Jul 2025237 AMAQI
25th Jul 2025238 AMAQI
25th Jul 2025249 AMAQI
25th Jul 20252710 AMAQI
25th Jul 20252711 AMAQI
25th Jul 20252612 PMAQI
25th Jul 2025261 PMAQI
25th Jul 2025262 PMAQI
25th Jul 2025263 PMAQI
25th Jul 2025254 PMAQI
25th Jul 2025255 PMAQI
25th Jul 2025246 PMAQI
25th Jul 2025247 PMAQI
25th Jul 2025258 PMAQI
25th Jul 2025249 PMAQI
25th Jul 20252410 PMAQI
25th Jul 20252311 PMAQI
26th Jul 20252312 AMAQI
26th Jul 2025231 AMAQI
26th Jul 2025232 AMAQI
26th Jul 2025233 AMAQI
26th Jul 2025214 AMAQI
20°C18/23°C
26th Jul 2025215 AMAQI
26th Jul 2025226 AMAQI
26th Jul 2025227 AMAQI
26th Jul 2025238 AMAQI
26th Jul 2025269 AMAQI
26th Jul 20253010 AMAQI
26th Jul 20252911 AMAQI
26th Jul 20252612 PMAQI
26th Jul 2025261 PMAQI
26th Jul 2025252 PMAQI
26th Jul 2025253 PMAQI
26th Jul 2025244 PMAQI
26th Jul 2025225 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025227 PMAQI
26th Jul 2025228 PMAQI
26th Jul 2025229 PMAQI
26th Jul 20252210 PMAQI
26th Jul 20252211 PMAQI
27th Jul 20252112 AMAQI
27th Jul 2025231 AMAQI
27th Jul 2025252 AMAQI
27th Jul 2025253 AMAQI
27th Jul 2025234 AMAQI
20°C18/24°C
27th Jul 2025245 AMAQI
27th Jul 2025246 AMAQI
27th Jul 2025257 AMAQI
27th Jul 2025268 AMAQI
27th Jul 2025279 AMAQI
27th Jul 20252810 AMAQI
27th Jul 20252811 AMAQI
27th Jul 20252812 PMAQI
27th Jul 2025291 PMAQI
27th Jul 2025292 PMAQI
27th Jul 2025293 PMAQI
27th Jul 2025294 PMAQI
27th Jul 2025285 PMAQI
27th Jul 2025276 PMAQI
27th Jul 2025267 PMAQI
27th Jul 2025258 PMAQI
27th Jul 2025249 PMAQI
27th Jul 20252410 PMAQI
27th Jul 20252411 PMAQI
28th Jul 20252512 AMAQI
28th Jul 2025251 AMAQI
28th Jul 2025262 AMAQI
28th Jul 2025263 AMAQI
28th Jul 2025254 AMAQI
20°C18/23°C
28th Jul 2025265 AMAQI
28th Jul 2025276 AMAQI
28th Jul 2025277 AMAQI
28th Jul 2025278 AMAQI
28th Jul 2025279 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20253011 AMAQI
28th Jul 20253312 PMAQI
28th Jul 2025331 PMAQI
28th Jul 2025322 PMAQI
28th Jul 2025323 PMAQI
28th Jul 2025334 PMAQI
28th Jul 2025325 PMAQI
28th Jul 2025326 PMAQI
28th Jul 2025307 PMAQI
28th Jul 2025298 PMAQI
28th Jul 2025319 PMAQI
28th Jul 20252910 PMAQI
28th Jul 20252911 PMAQI
29th Jul 20252912 AMAQI
29th Jul 2025291 AMAQI
29th Jul 2025322 AMAQI
29th Jul 2025333 AMAQI
29th Jul 2025354 AMAQI
20°C18/24°C
29th Jul 2025365 AMAQI
29th Jul 2025366 AMAQI
29th Jul 2025377 AMAQI
29th Jul 2025388 AMAQI
29th Jul 2025409 AMAQI
29th Jul 20254510 AMAQI
29th Jul 20254511 AMAQI
29th Jul 20254612 PMAQI
29th Jul 2025451 PMAQI
29th Jul 2025472 PMAQI
29th Jul 2025453 PMAQI
29th Jul 2025454 PMAQI
29th Jul 2025445 PMAQI
29th Jul 2025436 PMAQI
29th Jul 2025387 PMAQI
29th Jul 2025378 PMAQI
29th Jul 2025389 PMAQI
29th Jul 20253810 PMAQI
29th Jul 20253811 PMAQI
30th Jul 20253912 AMAQI
30th Jul 2025391 AMAQI
30th Jul 2025402 AMAQI
30th Jul 2025423 AMAQI
30th Jul 2025484 AMAQI
21°C18/24°C
30th Jul 2025465 AMAQI
30th Jul 2025476 AMAQI
30th Jul 2025477 AMAQI
30th Jul 2025478 AMAQI
30th Jul 2025479 AMAQI
30th Jul 20255010 AMAQI
30th Jul 20255311 AMAQI
30th Jul 20255612 PMAQI
30th Jul 2025571 PMAQI
30th Jul 2025592 PMAQI
30th Jul 2025593 PMAQI
30th Jul 2025594 PMAQI
30th Jul 2025595 PMAQI
30th Jul 2025596 PMAQI
30th Jul 2025597 PMAQI
30th Jul 2025598 PMAQI
30th Jul 2025529 PMAQI
30th Jul 20254710 PMAQI
30th Jul 20254811 PMAQI
31st Jul 20254912 AMAQI
31st Jul 2025501 AMAQI
31st Jul 2025502 AMAQI
31st Jul 2025513 AMAQI
31st Jul 2025534 AMAQI
21°C18/25°C
31st Jul 2025525 AMAQI
31st Jul 2025536 AMAQI
31st Jul 2025557 AMAQI
31st Jul 2025558 AMAQI
31st Jul 2025569 AMAQI
31st Jul 20255510 AMAQI
31st Jul 20255611 AMAQI
31st Jul 20255712 PMAQI
31st Jul 2025581 PMAQI
31st Jul 2025592 PMAQI
31st Jul 2025583 PMAQI
31st Jul 2025574 PMAQI
31st Jul 2025575 PMAQI
31st Jul 2025566 PMAQI
31st Jul 2025547 PMAQI
31st Jul 2025528 PMAQI
31st Jul 2025509 PMAQI
31st Jul 20254910 PMAQI
31st Jul 20254711 PMAQI
1st Aug 20254512 AMAQI
1st Aug 2025441 AMAQI
1st Aug 2025442 AMAQI
1st Aug 2025473 AMAQI
1st Aug 2025494 AMAQI
21°C18/25°C
1st Aug 2025535 AMAQI
1st Aug 2025566 AMAQI
1st Aug 2025567 AMAQI
1st Aug 2025578 AMAQI
1st Aug 2025589 AMAQI
1st Aug 20255910 AMAQI
1st Aug 20256011 AMAQI
1st Aug 20256112 PMAQI
1st Aug 2025611 PMAQI
1st Aug 2025632 PMAQI
1st Aug 2025623 PMAQI
1st Aug 2025614 PMAQI
1st Aug 2025585 PMAQI
1st Aug 2025576 PMAQI
1st Aug 2025557 PMAQI
1st Aug 2025528 PMAQI
1st Aug 2025489 PMAQI
1st Aug 20254610 PMAQI
1st Aug 20254311 PMAQI
2nd Aug 20254112 AMAQI
2nd Aug 2025391 AMAQI
2nd Aug 2025392 AMAQI
2nd Aug 2025403 AMAQI
2nd Aug 2025424 AMAQI
20°C18/24°C
2nd Aug 2025445 AMAQI
2nd Aug 2025486 AMAQI
2nd Aug 2025497 AMAQI
2nd Aug 2025508 AMAQI
2nd Aug 2025529 AMAQI
2nd Aug 20255310 AMAQI
2nd Aug 20255511 AMAQI
2nd Aug 20255712 PMAQI
2nd Aug 2025571 PMAQI
2nd Aug 2025572 PMAQI
2nd Aug 2025573 PMAQI
2nd Aug 2025554 PMAQI
2nd Aug 2025545 PMAQI
2nd Aug 2025506 PMAQI
2nd Aug 2025497 PMAQI
2nd Aug 2025448 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253510 PMAQI
2nd Aug 20253611 PMAQI
3rd Aug 20253512 AMAQI
3rd Aug 2025361 AMAQI
3rd Aug 2025392 AMAQI
3rd Aug 2025403 AMAQI
3rd Aug 2025424 AMAQI
21°C18/25°C
3rd Aug 2025475 AMAQI
3rd Aug 2025516 AMAQI
3rd Aug 2025567 AMAQI
3rd Aug 2025548 AMAQI
3rd Aug 2025539 AMAQI
3rd Aug 20255210 AMAQI
3rd Aug 20255311 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 2025546 PMAQI
3rd Aug 2025527 PMAQI
3rd Aug 2025528 PMAQI
3rd Aug 2025529 PMAQI
3rd Aug 20255410 PMAQI
3rd Aug 20255411 PMAQI
4th Aug 20255412 AMAQI
4th Aug 2025541 AMAQI
4th Aug 2025542 AMAQI
4th Aug 2025543 AMAQI
4th Aug 2025554 AMAQI
21°C18/25°C
4th Aug 2025565 AMAQI
4th Aug 2025576 AMAQI
4th Aug 2025587 AMAQI
4th Aug 2025608 AMAQI
4th Aug 2025639 AMAQI
4th Aug 20256410 AMAQI
4th Aug 20257111 AMAQI
4th Aug 20257412 PMAQI
4th Aug 2025771 PMAQI
4th Aug 2025792 PMAQI
4th Aug 2025743 PMAQI
4th Aug 2025704 PMAQI
4th Aug 2025675 PMAQI
4th Aug 2025646 PMAQI
4th Aug 2025587 PMAQI
4th Aug 2025608 PMAQI
4th Aug 2025629 PMAQI
4th Aug 20256110 PMAQI
4th Aug 20255911 PMAQI
5th Aug 20255812 AMAQI
5th Aug 2025581 AMAQI
5th Aug 2025592 AMAQI
5th Aug 2025603 AMAQI
5th Aug 2025604 AMAQI
21°C18/26°C
5th Aug 2025615 AMAQI
5th Aug 2025626 AMAQI
5th Aug 2025617 AMAQI
5th Aug 2025648 AMAQI
5th Aug 2025709 AMAQI
5th Aug 20257010 AMAQI
5th Aug 20257111 AMAQI
5th Aug 20257212 PMAQI
5th Aug 2025761 PMAQI
5th Aug 2025792 PMAQI
5th Aug 2025813 PMAQI
5th Aug 2025774 PMAQI
5th Aug 2025745 PMAQI
5th Aug 2025726 PMAQI
5th Aug 2025647 PMAQI
5th Aug 2025658 PMAQI
5th Aug 2025669 PMAQI
5th Aug 20256210 PMAQI
5th Aug 20256011 PMAQI
6th Aug 20255912 AMAQI
6th Aug 2025581 AMAQI
6th Aug 2025582 AMAQI
6th Aug 2025583 AMAQI
6th Aug 2025584 AMAQI
21°C18/25°C
6th Aug 2025585 AMAQI
6th Aug 2025606 AMAQI
6th Aug 2025617 AMAQI
6th Aug 2025618 AMAQI
6th Aug 2025639 AMAQI
6th Aug 20256910 AMAQI
6th Aug 20257311 AMAQI
6th Aug 20257412 PMAQI
6th Aug 2025731 PMAQI
6th Aug 2025722 PMAQI
6th Aug 2025703 PMAQI
6th Aug 2025694 PMAQI
6th Aug 2025685 PMAQI
6th Aug 2025676 PMAQI
6th Aug 2025617 PMAQI
6th Aug 2025638 PMAQI
6th Aug 2025629 PMAQI
6th Aug 20256210 PMAQI
6th Aug 20256011 PMAQI
7th Aug 20256012 AMAQI
7th Aug 2025601 AMAQI
7th Aug 2025592 AMAQI
7th Aug 2025603 AMAQI
7th Aug 2025594 AMAQI
22°C18/28°C
7th Aug 2025605 AMAQI
7th Aug 2025606 AMAQI
7th Aug 2025627 AMAQI
7th Aug 2025618 AMAQI
7th Aug 2025629 AMAQI
7th Aug 20256610 AMAQI
7th Aug 20257011 AMAQI
7th Aug 20256812 PMAQI
7th Aug 2025681 PMAQI
7th Aug 2025672 PMAQI
7th Aug 2025663 PMAQI
7th Aug 2025664 PMAQI
7th Aug 2025655 PMAQI
7th Aug 2025646 PMAQI
7th Aug 2025627 PMAQI
7th Aug 2025618 PMAQI
7th Aug 2025599 PMAQI
7th Aug 20255910 PMAQI
7th Aug 20255711 PMAQI
8th Aug 20255712 AMAQI
8th Aug 2025571 AMAQI
8th Aug 2025582 AMAQI
8th Aug 2025583 AMAQI
8th Aug 2025564 AMAQI
24°C19/28°C
8th Aug 2025575 AMAQI
8th Aug 2025576 AMAQI
8th Aug 2025567 AMAQI
8th Aug 2025558 AMAQI
8th Aug 2025549 AMAQI
8th Aug 20255510 AMAQI
8th Aug 20255711 AMAQI
8th Aug 20256012 PMAQI
8th Aug 2025631 PMAQI
8th Aug 2025622 PMAQI
8th Aug 2025613 PMAQI
8th Aug 2025604 PMAQI
8th Aug 2025595 PMAQI
8th Aug 2025586 PMAQI
8th Aug 2025577 PMAQI
8th Aug 2025578 PMAQI
8th Aug 2025549 PMAQI
8th Aug 20255410 PMAQI
8th Aug 20255411 PMAQI
9th Aug 20255312 AMAQI
9th Aug 2025541 AMAQI
9th Aug 2025552 AMAQI
9th Aug 2025543 AMAQI
9th Aug 2025504 AMAQI
22°C19/27°C
9th Aug 2025505 AMAQI
9th Aug 2025516 AMAQI
9th Aug 2025527 AMAQI
9th Aug 2025528 AMAQI
9th Aug 2025529 AMAQI
9th Aug 20255110 AMAQI
9th Aug 20255211 AMAQI
9th Aug 20255412 PMAQI
9th Aug 2025551 PMAQI
9th Aug 2025562 PMAQI
9th Aug 2025563 PMAQI
9th Aug 2025574 PMAQI
9th Aug 2025585 PMAQI
9th Aug 2025586 PMAQI
9th Aug 2025567 PMAQI
9th Aug 2025548 PMAQI
9th Aug 2025579 PMAQI
9th Aug 20255610 PMAQI
9th Aug 20255611 PMAQI
10th Aug 20255412 AMAQI
10th Aug 2025541 AMAQI
10th Aug 2025542 AMAQI
10th Aug 2025533 AMAQI
10th Aug 2025514 AMAQI
21°C18/25°C
10th Aug 2025515 AMAQI
5 AM10th Aug 2025556 AMAQI
10th Aug 2025547 AMAQI
10th Aug 2025548 AMAQI
10th Aug 2025579 AMAQI
10th Aug 20256010 AMAQI
10th Aug 20256011 AMAQI
10th Aug 20256212 PMAQI
12 PM10th Aug 2025601 PMAQI
10th Aug 2025602 PMAQI
10th Aug 2025593 PMAQI
10th Aug 2025594 PMAQI
10th Aug 2025585 PMAQI
10th Aug 2025586 PMAQI
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 PM
46AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
5 AM - 7 PM
46AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 6 PM (Avg. 46), while the lowest AQI was between 5 AM to 7 PM (Avg. 46).
Night time
Avg. Highest Time
8 PM - 11 PM
41AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
12 AM - 4 AM
40AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 41), while the lowest AQI was between 12 AM to 4 AM (Avg. 40).
2025 Days Vs Air Quality
San Diego, California, United States
2025
61%
84
39%
53
Total number of days with different AQI categories in last 222 days in 2025 (143 days remaining)
Good
84 DaysModerate
53 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 61%
Health Risk Level:
Moderate
In 2025, 61% of 222 days were within WHO’s safe air quality limits, and 39% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
San Diego, 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 March 2025
25AQI
25AQI
2nd March 2025
25AQI
25AQI
3rd March 2025
34AQI
34AQI
4th March 2025
44AQI
44AQI
5th March 2025
44AQI
44AQI
6th March 2025
28AQI
28AQI
1st April 2025
31AQI
31AQI
2nd April 2025
36AQI
36AQI
3rd April 2025
38AQI
38AQI
4th April 2025
32AQI
32AQI
5th April 2025
35AQI
35AQI
6th April 2025
32AQI
32AQI
7th April 2025
41AQI
41AQI
8th April 2025
52AQI
52AQI
9th April 2025
52AQI
52AQI
10th April 2025
52AQI
52AQI
11th April 2025
55AQI
55AQI
12th April 2025
60AQI
60AQI
13th April 2025
58AQI
58AQI
14th April 2025
56AQI
56AQI
15th April 2025
46AQI
46AQI
16th April 2025
41AQI
41AQI
17th April 2025
26AQI
26AQI
18th April 2025
27AQI
27AQI
19th April 2025
38AQI
38AQI
20th April 2025
50AQI
50AQI
21st April 2025
54AQI
54AQI
22nd April 2025
50AQI
50AQI
23rd April 2025
44AQI
44AQI
24th April 2025
41AQI
41AQI
25th April 2025
38AQI
38AQI
26th April 2025
25AQI
25AQI
27th April 2025
21AQI
21AQI
28th April 2025
24AQI
24AQI
29th April 2025
41AQI
41AQI
30th April 2025
53AQI
53AQI
1st May 2025
42AQI
42AQI
2nd May 2025
35AQI
35AQI
3rd May 2025
35AQI
35AQI
4th May 2025
34AQI
34AQI
5th May 2025
32AQI
32AQI
6th May 2025
44AQI
44AQI
7th May 2025
47AQI
47AQI
8th May 2025
51AQI
51AQI
9th May 2025
54AQI
54AQI
10th May 2025
52AQI
52AQI
11th May 2025
55AQI
55AQI
12th May 2025
53AQI
53AQI
13th May 2025
33AQI
33AQI
14th May 2025
38AQI
38AQI
15th May 2025
52AQI
52AQI
16th May 2025
55AQI
55AQI
17th May 2025
47AQI
47AQI
18th May 2025
34AQI
34AQI
19th May 2025
48AQI
48AQI
20th May 2025
58AQI
58AQI
21st May 2025
57AQI
57AQI
22nd May 2025
60AQI
60AQI
23rd May 2025
59AQI
59AQI
24th May 2025
53AQI
53AQI
25th May 2025
49AQI
49AQI
26th May 2025
47AQI
47AQI
27th May 2025
43AQI
43AQI
28th May 2025
44AQI
44AQI
29th May 2025
40AQI
40AQI
30th May 2025
48AQI
48AQI
31st May 2025
60AQI
60AQI
1st June 2025
53AQI
53AQI
2nd June 2025
46AQI
46AQI
3rd June 2025
31AQI
31AQI
4th June 2025
30AQI
30AQI
5th June 2025
30AQI
30AQI
6th June 2025
29AQI
29AQI
7th June 2025
34AQI
34AQI
8th June 2025
37AQI
37AQI
9th June 2025
44AQI
44AQI
10th June 2025
49AQI
49AQI
11th June 2025
47AQI
47AQI
12th June 2025
52AQI
52AQI
13th June 2025
58AQI
58AQI
14th June 2025
55AQI
55AQI
15th June 2025
56AQI
56AQI
16th June 2025
61AQI
61AQI
17th June 2025
63AQI
63AQI
18th June 2025
64AQI
64AQI
19th June 2025
60AQI
60AQI
20th June 2025
59AQI
59AQI
21st June 2025
59AQI
59AQI
22nd June 2025
58AQI
58AQI
23rd June 2025
58AQI
58AQI
24th June 2025
63AQI
63AQI
25th June 2025
55AQI
55AQI
26th June 2025
51AQI
51AQI
27th June 2025
52AQI
52AQI
28th June 2025
50AQI
50AQI
29th June 2025
48AQI
48AQI
30th June 2025
41AQI
41AQI
1st July 2025
42AQI
42AQI
2nd July 2025
42AQI
42AQI
3rd July 2025
44AQI
44AQI
4th July 2025
44AQI
44AQI
5th July 2025
58AQI
58AQI
6th July 2025
54AQI
54AQI
7th July 2025
56AQI
56AQI
8th July 2025
55AQI
55AQI
9th July 2025
45AQI
45AQI
10th July 2025
46AQI
46AQI
11th July 2025
55AQI
55AQI
12th July 2025
51AQI
51AQI
13th July 2025
47AQI
47AQI
14th July 2025
42AQI
42AQI
15th July 2025
37AQI
37AQI
16th July 2025
32AQI
32AQI
17th July 2025
27AQI
27AQI
18th July 2025
27AQI
27AQI
19th July 2025
39AQI
39AQI
20th July 2025
45AQI
45AQI
21st July 2025
37AQI
37AQI
22nd July 2025
28AQI
28AQI
23rd July 2025
27AQI
27AQI
24th July 2025
32AQI
32AQI
25th July 2025
25AQI
25AQI
26th July 2025
23AQI
23AQI
27th July 2025
26AQI
26AQI
28th July 2025
29AQI
29AQI
29th July 2025
39AQI
39AQI
30th July 2025
50AQI
50AQI
31st July 2025
53AQI
53AQI
1st August 2025
53AQI
53AQI
2nd August 2025
46AQI
46AQI
3rd August 2025
49AQI
49AQI
4th August 2025
62AQI
62AQI
5th August 2025
66AQI
66AQI
6th August 2025
63AQI
63AQI
7th August 2025
62AQI
62AQI
8th August 2025
57AQI
57AQI
9th August 2025
54AQI
54AQI
33AQI
42AQI
47AQI
50AQI
41AQI
57AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202545AQI
6
21
9
18
13
13
17
24
7
2
7
84
53
Highest AQI recorded in
August57AQI
Lowest AQI recorded in
March33AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
45AQILeast Polluted Year Recorded
2025(Avg.)
45AQISan Diego's annual 2025 AQI (45) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
