Santa Cruz, 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
Santa Cruz, California, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
35AQILowest AQI recorded on
2nd Aug 2025
20AQISame Day Analysis (8th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 21 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 9th Aug - 10th Aug 2025
Santa Cruz, California, United States
AQI
Day
Night
.
6 AM9th Aug 2025
8 PM
5 AM10th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
10PM9th Aug
50AQI
Avg. Lowest Time
9AM9th Aug
40AQI
In the last 24 hours,
Santa Cruz's AQI reached its highest point of 50 at 10 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 9th Aug and 10th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Santa Cruz, 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 2025216 AMAQI
11th Jul 2025217 AMAQI
11th Jul 2025228 AMAQI
11th Jul 2025249 AMAQI
11th Jul 20252510 AMAQI
11th Jul 20252611 AMAQI
11th Jul 20252612 PMAQI
11th Jul 2025241 PMAQI
11th Jul 2025252 PMAQI
11th Jul 2025243 PMAQI
11th Jul 2025234 PMAQI
11th Jul 2025255 PMAQI
11th Jul 2025246 PMAQI
11th Jul 2025247 PMAQI
11th Jul 2025248 PMAQI
11th Jul 2025249 PMAQI
11th Jul 20252410 PMAQI
11th Jul 20252511 PMAQI
12th Jul 20252512 AMAQI
12th Jul 2025251 AMAQI
12th Jul 2025262 AMAQI
12th Jul 2025263 AMAQI
12th Jul 2025274 AMAQI
12th Jul 2025265 AMAQI
17°C13/22°C
12th Jul 2025286 AMAQI
12th Jul 2025307 AMAQI
12th Jul 2025268 AMAQI
12th Jul 2025309 AMAQI
12th Jul 20252810 AMAQI
12th Jul 20252911 AMAQI
12th Jul 20252712 PMAQI
12th Jul 2025291 PMAQI
12th Jul 2025282 PMAQI
12th Jul 2025273 PMAQI
12th Jul 2025284 PMAQI
12th Jul 2025295 PMAQI
12th Jul 2025296 PMAQI
12th Jul 2025287 PMAQI
12th Jul 2025278 PMAQI
12th Jul 2025289 PMAQI
12th Jul 20252910 PMAQI
12th Jul 20252911 PMAQI
13th Jul 20252812 AMAQI
13th Jul 2025281 AMAQI
13th Jul 2025282 AMAQI
13th Jul 2025253 AMAQI
13th Jul 2025254 AMAQI
13th Jul 2025255 AMAQI
15°C12/18°C
13th Jul 2025276 AMAQI
13th Jul 2025267 AMAQI
13th Jul 2025268 AMAQI
13th Jul 2025259 AMAQI
13th Jul 20252510 AMAQI
13th Jul 20252411 AMAQI
13th Jul 20252112 PMAQI
13th Jul 2025241 PMAQI
13th Jul 2025262 PMAQI
13th Jul 2025273 PMAQI
13th Jul 2025284 PMAQI
13th Jul 2025275 PMAQI
13th Jul 2025286 PMAQI
13th Jul 2025277 PMAQI
13th Jul 2025288 PMAQI
13th Jul 2025289 PMAQI
13th Jul 20252810 PMAQI
13th Jul 20252811 PMAQI
14th Jul 20252812 AMAQI
14th Jul 2025281 AMAQI
14th Jul 2025272 AMAQI
14th Jul 2025213 AMAQI
14th Jul 2025224 AMAQI
14th Jul 2025215 AMAQI
15°C13/20°C
14th Jul 2025246 AMAQI
14th Jul 2025227 AMAQI
14th Jul 2025228 AMAQI
14th Jul 2025249 AMAQI
14th Jul 20252410 AMAQI
14th Jul 20252211 AMAQI
14th Jul 20252512 PMAQI
14th Jul 2025241 PMAQI
14th Jul 2025242 PMAQI
14th Jul 2025243 PMAQI
14th Jul 2025254 PMAQI
14th Jul 2025255 PMAQI
14th Jul 2025266 PMAQI
14th Jul 2025267 PMAQI
14th Jul 2025268 PMAQI
14th Jul 2025259 PMAQI
14th Jul 20252510 PMAQI
14th Jul 20252511 PMAQI
15th Jul 20252512 AMAQI
15th Jul 2025241 AMAQI
15th Jul 2025252 AMAQI
15th Jul 2025233 AMAQI
15th Jul 2025204 AMAQI
15th Jul 2025205 AMAQI
16°C13/20°C
15th Jul 2025216 AMAQI
15th Jul 2025237 AMAQI
15th Jul 2025258 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20252610 AMAQI
15th Jul 20252611 AMAQI
15th Jul 20252712 PMAQI
15th Jul 2025291 PMAQI
15th Jul 2025282 PMAQI
15th Jul 2025293 PMAQI
15th Jul 2025304 PMAQI
15th Jul 2025305 PMAQI
15th Jul 2025316 PMAQI
15th Jul 2025327 PMAQI
15th Jul 2025348 PMAQI
15th Jul 2025329 PMAQI
15th Jul 20252610 PMAQI
15th Jul 20252611 PMAQI
16th Jul 20252512 AMAQI
16th Jul 2025261 AMAQI
16th Jul 2025262 AMAQI
16th Jul 2025523 AMAQI
16th Jul 2025554 AMAQI
16th Jul 2025575 AMAQI
14°C12/16°C
16th Jul 2025556 AMAQI
16th Jul 2025587 AMAQI
16th Jul 2025568 AMAQI
16th Jul 2025599 AMAQI
16th Jul 20255710 AMAQI
16th Jul 20255711 AMAQI
16th Jul 20255612 PMAQI
16th Jul 2025541 PMAQI
16th Jul 2025522 PMAQI
16th Jul 2025523 PMAQI
16th Jul 2025474 PMAQI
16th Jul 2025455 PMAQI
16th Jul 2025456 PMAQI
16th Jul 2025437 PMAQI
16th Jul 2025428 PMAQI
16th Jul 2025419 PMAQI
16th Jul 20254310 PMAQI
16th Jul 20254411 PMAQI
17th Jul 20254412 AMAQI
17th Jul 2025431 AMAQI
17th Jul 2025462 AMAQI
17th Jul 2025483 AMAQI
17th Jul 2025444 AMAQI
17th Jul 2025415 AMAQI
14°C13/16°C
17th Jul 2025446 AMAQI
17th Jul 2025367 AMAQI
17th Jul 2025388 AMAQI
17th Jul 2025399 AMAQI
17th Jul 20254510 AMAQI
17th Jul 20254311 AMAQI
17th Jul 20254712 PMAQI
17th Jul 2025511 PMAQI
17th Jul 2025492 PMAQI
17th Jul 2025493 PMAQI
17th Jul 2025494 PMAQI
17th Jul 2025495 PMAQI
17th Jul 2025496 PMAQI
17th Jul 2025497 PMAQI
17th Jul 2025488 PMAQI
17th Jul 2025489 PMAQI
17th Jul 20254610 PMAQI
17th Jul 20254711 PMAQI
18th Jul 20254612 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025452 AMAQI
18th Jul 2025463 AMAQI
18th Jul 2025494 AMAQI
18th Jul 2025475 AMAQI
16°C13/20°C
18th Jul 2025486 AMAQI
18th Jul 2025457 AMAQI
18th Jul 2025448 AMAQI
18th Jul 2025459 AMAQI
18th Jul 20254510 AMAQI
18th Jul 20255211 AMAQI
18th Jul 20254912 PMAQI
18th Jul 2025511 PMAQI
18th Jul 2025512 PMAQI
18th Jul 2025513 PMAQI
18th Jul 2025514 PMAQI
18th Jul 2025505 PMAQI
18th Jul 2025496 PMAQI
18th Jul 2025497 PMAQI
18th Jul 2025498 PMAQI
18th Jul 2025499 PMAQI
18th Jul 20254810 PMAQI
18th Jul 20254811 PMAQI
19th Jul 20254812 AMAQI
19th Jul 2025481 AMAQI
19th Jul 2025472 AMAQI
19th Jul 2025453 AMAQI
19th Jul 2025494 AMAQI
19th Jul 2025495 AMAQI
17°C13/23°C
19th Jul 2025486 AMAQI
19th Jul 2025487 AMAQI
19th Jul 2025508 AMAQI
19th Jul 2025499 AMAQI
19th Jul 20255010 AMAQI
19th Jul 20254711 AMAQI
19th Jul 20254612 PMAQI
19th Jul 2025471 PMAQI
19th Jul 2025472 PMAQI
19th Jul 2025463 PMAQI
19th Jul 2025464 PMAQI
19th Jul 2025465 PMAQI
19th Jul 2025466 PMAQI
19th Jul 2025467 PMAQI
19th Jul 2025448 PMAQI
19th Jul 2025459 PMAQI
19th Jul 20254910 PMAQI
19th Jul 20254811 PMAQI
20th Jul 20254812 AMAQI
20th Jul 2025481 AMAQI
20th Jul 2025482 AMAQI
20th Jul 2025343 AMAQI
20th Jul 2025344 AMAQI
20th Jul 2025345 AMAQI
17°C13/23°C
20th Jul 2025376 AMAQI
20th Jul 2025377 AMAQI
20th Jul 2025368 AMAQI
20th Jul 2025369 AMAQI
20th Jul 20253510 AMAQI
20th Jul 20253511 AMAQI
20th Jul 20253812 PMAQI
20th Jul 2025381 PMAQI
20th Jul 2025402 PMAQI
20th Jul 2025393 PMAQI
20th Jul 2025404 PMAQI
20th Jul 2025395 PMAQI
20th Jul 2025406 PMAQI
20th Jul 2025407 PMAQI
20th Jul 2025408 PMAQI
20th Jul 2025409 PMAQI
20th Jul 20254010 PMAQI
20th Jul 20254011 PMAQI
21st Jul 20254112 AMAQI
21st Jul 2025411 AMAQI
21st Jul 2025402 AMAQI
21st Jul 2025353 AMAQI
21st Jul 2025414 AMAQI
21st Jul 2025395 AMAQI
15°C12/19°C
21st Jul 2025406 AMAQI
21st Jul 2025377 AMAQI
21st Jul 2025398 AMAQI
21st Jul 2025409 AMAQI
21st Jul 20254110 AMAQI
21st Jul 20254211 AMAQI
21st Jul 20254212 PMAQI
21st Jul 2025371 PMAQI
21st Jul 2025382 PMAQI
21st Jul 2025383 PMAQI
21st Jul 2025394 PMAQI
21st Jul 2025395 PMAQI
21st Jul 2025376 PMAQI
21st Jul 2025387 PMAQI
21st Jul 2025378 PMAQI
21st Jul 2025369 PMAQI
21st Jul 20253810 PMAQI
21st Jul 20253811 PMAQI
22nd Jul 20253812 AMAQI
22nd Jul 2025391 AMAQI
22nd Jul 2025372 AMAQI
22nd Jul 2025353 AMAQI
22nd Jul 2025334 AMAQI
22nd Jul 2025345 AMAQI
16°C13/20°C
22nd Jul 2025346 AMAQI
22nd Jul 2025357 AMAQI
22nd Jul 2025348 AMAQI
22nd Jul 2025339 AMAQI
22nd Jul 20253210 AMAQI
22nd Jul 20253411 AMAQI
22nd Jul 20253612 PMAQI
22nd Jul 2025371 PMAQI
22nd Jul 2025352 PMAQI
22nd Jul 2025313 PMAQI
22nd Jul 2025324 PMAQI
22nd Jul 2025385 PMAQI
22nd Jul 2025356 PMAQI
22nd Jul 2025377 PMAQI
22nd Jul 2025378 PMAQI
22nd Jul 2025369 PMAQI
22nd Jul 20253610 PMAQI
22nd Jul 20253511 PMAQI
23rd Jul 20253512 AMAQI
23rd Jul 2025351 AMAQI
23rd Jul 2025342 AMAQI
23rd Jul 2025303 AMAQI
23rd Jul 2025254 AMAQI
23rd Jul 2025245 AMAQI
16°C14/19°C
23rd Jul 2025336 AMAQI
23rd Jul 2025237 AMAQI
23rd Jul 2025208 AMAQI
23rd Jul 2025219 AMAQI
23rd Jul 20252110 AMAQI
23rd Jul 20252311 AMAQI
23rd Jul 20252412 PMAQI
23rd Jul 2025251 PMAQI
23rd Jul 2025282 PMAQI
23rd Jul 2025293 PMAQI
23rd Jul 2025294 PMAQI
23rd Jul 2025285 PMAQI
23rd Jul 2025296 PMAQI
23rd Jul 2025297 PMAQI
23rd Jul 2025298 PMAQI
23rd Jul 2025309 PMAQI
23rd Jul 20252810 PMAQI
23rd Jul 20252911 PMAQI
24th Jul 20252812 AMAQI
24th Jul 2025291 AMAQI
24th Jul 2025282 AMAQI
24th Jul 2025303 AMAQI
24th Jul 2025284 AMAQI
24th Jul 2025235 AMAQI
15°C13/19°C
24th Jul 2025216 AMAQI
24th Jul 2025227 AMAQI
24th Jul 2025218 AMAQI
24th Jul 2025219 AMAQI
24th Jul 20252010 AMAQI
24th Jul 20251911 AMAQI
24th Jul 20252112 PMAQI
24th Jul 2025201 PMAQI
24th Jul 2025252 PMAQI
24th Jul 2025243 PMAQI
24th Jul 2025284 PMAQI
24th Jul 2025305 PMAQI
24th Jul 2025316 PMAQI
24th Jul 2025317 PMAQI
24th Jul 2025328 PMAQI
24th Jul 2025319 PMAQI
24th Jul 20252710 PMAQI
24th Jul 20252711 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025281 AMAQI
25th Jul 2025272 AMAQI
25th Jul 2025503 AMAQI
25th Jul 2025574 AMAQI
25th Jul 2025575 AMAQI
16°C13/20°C
25th Jul 2025576 AMAQI
25th Jul 2025567 AMAQI
25th Jul 2025528 AMAQI
25th Jul 2025519 AMAQI
25th Jul 20254710 AMAQI
25th Jul 20254811 AMAQI
25th Jul 20254612 PMAQI
25th Jul 2025471 PMAQI
25th Jul 2025492 PMAQI
25th Jul 2025483 PMAQI
25th Jul 2025474 PMAQI
25th Jul 2025465 PMAQI
25th Jul 2025506 PMAQI
25th Jul 2025527 PMAQI
25th Jul 2025518 PMAQI
25th Jul 2025519 PMAQI
25th Jul 20254910 PMAQI
25th Jul 20255011 PMAQI
26th Jul 20255012 AMAQI
26th Jul 2025491 AMAQI
26th Jul 2025492 AMAQI
26th Jul 2025503 AMAQI
26th Jul 2025494 AMAQI
26th Jul 2025515 AMAQI
16°C13/21°C
26th Jul 2025496 AMAQI
26th Jul 2025487 AMAQI
26th Jul 2025498 AMAQI
26th Jul 2025459 AMAQI
26th Jul 20254310 AMAQI
26th Jul 20254011 AMAQI
26th Jul 20253912 PMAQI
26th Jul 2025451 PMAQI
26th Jul 2025492 PMAQI
26th Jul 2025473 PMAQI
26th Jul 2025494 PMAQI
26th Jul 2025495 PMAQI
26th Jul 2025506 PMAQI
26th Jul 2025507 PMAQI
26th Jul 2025508 PMAQI
26th Jul 2025499 PMAQI
26th Jul 20254810 PMAQI
26th Jul 20254911 PMAQI
27th Jul 20254912 AMAQI
27th Jul 2025481 AMAQI
27th Jul 2025492 AMAQI
27th Jul 2025523 AMAQI
27th Jul 2025604 AMAQI
27th Jul 2025605 AMAQI
16°C13/20°C
27th Jul 2025566 AMAQI
27th Jul 2025537 AMAQI
27th Jul 2025518 AMAQI
27th Jul 2025529 AMAQI
27th Jul 20255210 AMAQI
27th Jul 20255111 AMAQI
27th Jul 20254812 PMAQI
27th Jul 2025531 PMAQI
27th Jul 2025562 PMAQI
27th Jul 2025533 PMAQI
27th Jul 2025524 PMAQI
27th Jul 2025535 PMAQI
27th Jul 2025536 PMAQI
27th Jul 2025537 PMAQI
27th Jul 2025538 PMAQI
27th Jul 2025539 PMAQI
27th Jul 20255310 PMAQI
27th Jul 20255311 PMAQI
28th Jul 20255412 AMAQI
28th Jul 2025541 AMAQI
28th Jul 2025542 AMAQI
28th Jul 2025613 AMAQI
28th Jul 2025604 AMAQI
28th Jul 2025605 AMAQI
17°C13/21°C
28th Jul 2025606 AMAQI
28th Jul 2025627 AMAQI
28th Jul 2025648 AMAQI
28th Jul 2025689 AMAQI
28th Jul 20256910 AMAQI
28th Jul 20256811 AMAQI
28th Jul 20256612 PMAQI
28th Jul 2025611 PMAQI
28th Jul 2025582 PMAQI
28th Jul 2025563 PMAQI
28th Jul 2025554 PMAQI
28th Jul 2025555 PMAQI
28th Jul 2025546 PMAQI
28th Jul 2025547 PMAQI
28th Jul 2025548 PMAQI
28th Jul 2025559 PMAQI
28th Jul 20255910 PMAQI
28th Jul 20255811 PMAQI
29th Jul 20256012 AMAQI
29th Jul 2025591 AMAQI
29th Jul 2025592 AMAQI
29th Jul 2025533 AMAQI
29th Jul 2025464 AMAQI
29th Jul 2025485 AMAQI
18°C14/24°C
29th Jul 2025546 AMAQI
29th Jul 2025607 AMAQI
29th Jul 2025608 AMAQI
29th Jul 2025589 AMAQI
29th Jul 20256010 AMAQI
29th Jul 20256311 AMAQI
29th Jul 20256512 PMAQI
29th Jul 2025661 PMAQI
29th Jul 2025622 PMAQI
29th Jul 2025593 PMAQI
29th Jul 2025574 PMAQI
29th Jul 2025545 PMAQI
29th Jul 2025556 PMAQI
29th Jul 2025547 PMAQI
29th Jul 2025558 PMAQI
29th Jul 2025549 PMAQI
29th Jul 20255710 PMAQI
29th Jul 20255711 PMAQI
30th Jul 20255712 AMAQI
30th Jul 2025571 AMAQI
30th Jul 2025562 AMAQI
30th Jul 2025483 AMAQI
30th Jul 2025384 AMAQI
30th Jul 2025405 AMAQI
18°C14/24°C
30th Jul 2025406 AMAQI
30th Jul 2025397 AMAQI
30th Jul 2025398 AMAQI
30th Jul 2025429 AMAQI
30th Jul 20253810 AMAQI
30th Jul 20253711 AMAQI
30th Jul 20253312 PMAQI
30th Jul 2025381 PMAQI
30th Jul 2025432 PMAQI
30th Jul 2025423 PMAQI
30th Jul 2025424 PMAQI
30th Jul 2025435 PMAQI
30th Jul 2025436 PMAQI
30th Jul 2025437 PMAQI
30th Jul 2025448 PMAQI
30th Jul 2025449 PMAQI
30th Jul 20254410 PMAQI
30th Jul 20254411 PMAQI
31st Jul 20254512 AMAQI
31st Jul 2025451 AMAQI
31st Jul 2025452 AMAQI
31st Jul 2025443 AMAQI
31st Jul 2025284 AMAQI
31st Jul 2025215 AMAQI
17°C13/21°C
31st Jul 2025246 AMAQI
31st Jul 2025267 AMAQI
31st Jul 2025278 AMAQI
31st Jul 2025279 AMAQI
31st Jul 20252510 AMAQI
31st Jul 20252411 AMAQI
31st Jul 20252712 PMAQI
31st Jul 2025331 PMAQI
31st Jul 2025442 PMAQI
31st Jul 2025493 PMAQI
31st Jul 2025394 PMAQI
31st Jul 2025495 PMAQI
31st Jul 2025366 PMAQI
31st Jul 2025447 PMAQI
31st Jul 2025428 PMAQI
31st Jul 2025359 PMAQI
31st Jul 20254510 PMAQI
31st Jul 20253711 PMAQI
1st Aug 20253412 AMAQI
1st Aug 2025371 AMAQI
1st Aug 2025342 AMAQI
1st Aug 2025383 AMAQI
1st Aug 2025344 AMAQI
1st Aug 2025395 AMAQI
17°C14/22°C
1st Aug 2025436 AMAQI
1st Aug 2025327 AMAQI
1st Aug 2025378 AMAQI
1st Aug 2025339 AMAQI
1st Aug 20253010 AMAQI
1st Aug 20253111 AMAQI
1st Aug 20254612 PMAQI
1st Aug 2025341 PMAQI
1st Aug 2025332 PMAQI
1st Aug 2025363 PMAQI
1st Aug 2025364 PMAQI
1st Aug 2025385 PMAQI
1st Aug 2025356 PMAQI
1st Aug 2025367 PMAQI
1st Aug 2025348 PMAQI
1st Aug 2025369 PMAQI
1st Aug 20253710 PMAQI
1st Aug 20253611 PMAQI
2nd Aug 20254012 AMAQI
2nd Aug 2025381 AMAQI
2nd Aug 2025362 AMAQI
2nd Aug 2025323 AMAQI
2nd Aug 2025294 AMAQI
2nd Aug 2025355 AMAQI
17°C14/21°C
2nd Aug 2025316 AMAQI
2nd Aug 2025287 AMAQI
2nd Aug 2025268 AMAQI
2nd Aug 2025309 AMAQI
2nd Aug 20252910 AMAQI
2nd Aug 20253311 AMAQI
2nd Aug 20252912 PMAQI
2nd Aug 2025281 PMAQI
2nd Aug 2025292 PMAQI
2nd Aug 2025283 PMAQI
2nd Aug 2025314 PMAQI
2nd Aug 2025315 PMAQI
2nd Aug 2025306 PMAQI
2nd Aug 2025297 PMAQI
2nd Aug 2025308 PMAQI
2nd Aug 2025339 PMAQI
2nd Aug 20253210 PMAQI
2nd Aug 20253211 PMAQI
3rd Aug 20253212 AMAQI
3rd Aug 2025341 AMAQI
3rd Aug 2025322 AMAQI
3rd Aug 2025303 AMAQI
3rd Aug 2025314 AMAQI
3rd Aug 2025295 AMAQI
17°C13/23°C
3rd Aug 2025276 AMAQI
3rd Aug 2025307 AMAQI
3rd Aug 2025338 AMAQI
3rd Aug 2025319 AMAQI
3rd Aug 20253010 AMAQI
3rd Aug 20252911 AMAQI
3rd Aug 20252812 PMAQI
3rd Aug 2025281 PMAQI
3rd Aug 2025322 PMAQI
3rd Aug 2025323 PMAQI
3rd Aug 2025304 PMAQI
3rd Aug 2025295 PMAQI
3rd Aug 2025336 PMAQI
3rd Aug 2025307 PMAQI
3rd Aug 2025388 PMAQI
3rd Aug 2025319 PMAQI
3rd Aug 20253610 PMAQI
3rd Aug 20253211 PMAQI
4th Aug 20253312 AMAQI
4th Aug 2025321 AMAQI
4th Aug 2025332 AMAQI
4th Aug 2025343 AMAQI
4th Aug 2025314 AMAQI
4th Aug 2025295 AMAQI
18°C13/26°C
4th Aug 2025336 AMAQI
4th Aug 2025347 AMAQI
4th Aug 2025328 AMAQI
4th Aug 2025299 AMAQI
4th Aug 20253110 AMAQI
4th Aug 20253311 AMAQI
4th Aug 20254012 PMAQI
4th Aug 2025351 PMAQI
4th Aug 2025352 PMAQI
4th Aug 2025323 PMAQI
4th Aug 2025334 PMAQI
4th Aug 2025445 PMAQI
4th Aug 2025326 PMAQI
4th Aug 2025327 PMAQI
4th Aug 2025318 PMAQI
4th Aug 2025369 PMAQI
4th Aug 20253510 PMAQI
4th Aug 20253311 PMAQI
5th Aug 20253312 AMAQI
5th Aug 2025351 AMAQI
5th Aug 2025342 AMAQI
5th Aug 2025323 AMAQI
5th Aug 2025294 AMAQI
5th Aug 2025365 AMAQI
18°C13/25°C
5th Aug 2025266 AMAQI
5th Aug 2025287 AMAQI
5th Aug 2025428 AMAQI
5th Aug 2025409 AMAQI
5th Aug 20253510 AMAQI
5th Aug 20253111 AMAQI
5th Aug 20253212 PMAQI
5th Aug 2025331 PMAQI
5th Aug 2025332 PMAQI
5th Aug 2025343 PMAQI
5th Aug 2025334 PMAQI
5th Aug 2025395 PMAQI
5th Aug 2025396 PMAQI
5th Aug 2025347 PMAQI
5th Aug 2025348 PMAQI
5th Aug 2025459 PMAQI
5th Aug 20253910 PMAQI
5th Aug 20253411 PMAQI
6th Aug 20253412 AMAQI
6th Aug 2025361 AMAQI
6th Aug 2025422 AMAQI
6th Aug 2025413 AMAQI
6th Aug 2025404 AMAQI
6th Aug 2025385 AMAQI
17°C12/23°C
6th Aug 2025376 AMAQI
6th Aug 2025397 AMAQI
6th Aug 2025408 AMAQI
6th Aug 2025409 AMAQI
6th Aug 20254210 AMAQI
6th Aug 20254311 AMAQI
6th Aug 20254712 PMAQI
6th Aug 2025441 PMAQI
6th Aug 2025432 PMAQI
6th Aug 2025453 PMAQI
6th Aug 2025464 PMAQI
6th Aug 2025465 PMAQI
6th Aug 2025446 PMAQI
6th Aug 2025467 PMAQI
6th Aug 2025438 PMAQI
6th Aug 2025429 PMAQI
6th Aug 20254110 PMAQI
6th Aug 20254011 PMAQI
7th Aug 20253812 AMAQI
7th Aug 2025401 AMAQI
7th Aug 2025432 AMAQI
7th Aug 2025453 AMAQI
7th Aug 2025464 AMAQI
7th Aug 2025425 AMAQI
19°C12/26°C
7th Aug 2025426 AMAQI
7th Aug 2025407 AMAQI
7th Aug 2025428 AMAQI
7th Aug 2025429 AMAQI
7th Aug 20254210 AMAQI
7th Aug 20254711 AMAQI
7th Aug 20255112 PMAQI
7th Aug 2025541 PMAQI
7th Aug 2025492 PMAQI
7th Aug 2025493 PMAQI
7th Aug 2025494 PMAQI
7th Aug 2025495 PMAQI
7th Aug 2025496 PMAQI
7th Aug 2025487 PMAQI
7th Aug 2025488 PMAQI
7th Aug 2025479 PMAQI
7th Aug 20254410 PMAQI
7th Aug 20254411 PMAQI
8th Aug 20254412 AMAQI
8th Aug 2025441 AMAQI
8th Aug 2025442 AMAQI
8th Aug 2025453 AMAQI
8th Aug 2025504 AMAQI
8th Aug 2025475 AMAQI
18°C14/23°C
8th Aug 2025466 AMAQI
8th Aug 2025437 AMAQI
8th Aug 2025458 AMAQI
8th Aug 2025449 AMAQI
8th Aug 20254310 AMAQI
8th Aug 20254411 AMAQI
8th Aug 20254812 PMAQI
8th Aug 2025501 PMAQI
8th Aug 2025482 PMAQI
8th Aug 2025493 PMAQI
8th Aug 2025484 PMAQI
8th Aug 2025485 PMAQI
8th Aug 2025486 PMAQI
8th Aug 2025487 PMAQI
8th Aug 2025468 PMAQI
8th Aug 2025489 PMAQI
8th Aug 20255010 PMAQI
8th Aug 20254911 PMAQI
9th Aug 20254912 AMAQI
9th Aug 2025481 AMAQI
9th Aug 2025492 AMAQI
9th Aug 2025493 AMAQI
9th Aug 2025484 AMAQI
9th Aug 2025465 AMAQI
16°C12/22°C
9th Aug 2025436 AMAQI
9th Aug 2025447 AMAQI
9th Aug 2025428 AMAQI
9th Aug 2025409 AMAQI
9th Aug 20254310 AMAQI
9th Aug 20254611 AMAQI
9th Aug 20254412 PMAQI
9th Aug 2025451 PMAQI
9th Aug 2025482 PMAQI
9th Aug 2025473 PMAQI
9th Aug 2025454 PMAQI
9th Aug 2025465 PMAQI
9th Aug 2025486 PMAQI
9th Aug 2025477 PMAQI
9th Aug 2025478 PMAQI
9th Aug 2025489 PMAQI
9th Aug 20255010 PMAQI
9th Aug 20255011 PMAQI
10th Aug 20254912 AMAQI
--°C/°C
6 AM
1 PM
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 8 PM
39AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 8 PM
39AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 PM (Avg. 39), while the lowest AQI was between 6 AM to 8 PM (Avg. 39).
Night time
Avg. Highest Time
12 AM - 11 PM
39AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 5 AM
39AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 39), while the lowest AQI was between 12 AM to 5 AM (Avg. 39).
2025 Days Vs Air Quality
Santa Cruz, California, United States
2025
100%
136
Total number of days with different AQI categories in last 221 days in 2025 (144 days remaining)
Good
136 DaysModerate
0 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 221 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
Santa Cruz, 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
21AQI
21AQI
2nd March 2025
19AQI
19AQI
3rd March 2025
23AQI
23AQI
4th March 2025
18AQI
18AQI
5th March 2025
21AQI
21AQI
6th March 2025
21AQI
21AQI
1st April 2025
18AQI
18AQI
2nd April 2025
20AQI
20AQI
3rd April 2025
19AQI
19AQI
4th April 2025
21AQI
21AQI
5th April 2025
21AQI
21AQI
6th April 2025
20AQI
20AQI
7th April 2025
20AQI
20AQI
8th April 2025
18AQI
18AQI
9th April 2025
24AQI
24AQI
10th April 2025
28AQI
28AQI
11th April 2025
23AQI
23AQI
12th April 2025
35AQI
35AQI
13th April 2025
40AQI
40AQI
14th April 2025
29AQI
29AQI
15th April 2025
26AQI
26AQI
16th April 2025
30AQI
30AQI
17th April 2025
27AQI
27AQI
18th April 2025
25AQI
25AQI
19th April 2025
31AQI
31AQI
20th April 2025
29AQI
29AQI
21st April 2025
29AQI
29AQI
22nd April 2025
32AQI
32AQI
23rd April 2025
44AQI
44AQI
24th April 2025
30AQI
30AQI
25th April 2025
21AQI
21AQI
26th April 2025
17AQI
17AQI
27th April 2025
17AQI
17AQI
28th April 2025
28AQI
28AQI
29th April 2025
33AQI
33AQI
30th April 2025
29AQI
29AQI
1st May 2025
33AQI
33AQI
2nd May 2025
30AQI
30AQI
3rd May 2025
21AQI
21AQI
4th May 2025
36AQI
36AQI
5th May 2025
45AQI
45AQI
6th May 2025
50AQI
50AQI
7th May 2025
44AQI
44AQI
8th May 2025
29AQI
29AQI
9th May 2025
29AQI
29AQI
10th May 2025
36AQI
36AQI
11th May 2025
31AQI
31AQI
12th May 2025
19AQI
19AQI
13th May 2025
18AQI
18AQI
14th May 2025
31AQI
31AQI
15th May 2025
39AQI
39AQI
16th May 2025
41AQI
41AQI
17th May 2025
24AQI
24AQI
18th May 2025
28AQI
28AQI
19th May 2025
42AQI
42AQI
20th May 2025
26AQI
26AQI
21st May 2025
39AQI
39AQI
22nd May 2025
36AQI
36AQI
23rd May 2025
24AQI
24AQI
24th May 2025
28AQI
28AQI
25th May 2025
21AQI
21AQI
26th May 2025
17AQI
17AQI
27th May 2025
25AQI
25AQI
28th May 2025
29AQI
29AQI
29th May 2025
19AQI
19AQI
30th May 2025
26AQI
26AQI
31st May 2025
37AQI
37AQI
1st June 2025
47AQI
47AQI
2nd June 2025
46AQI
46AQI
3rd June 2025
50AQI
50AQI
4th June 2025
50AQI
50AQI
5th June 2025
34AQI
34AQI
6th June 2025
28AQI
28AQI
7th June 2025
24AQI
24AQI
8th June 2025
20AQI
20AQI
9th June 2025
18AQI
18AQI
10th June 2025
23AQI
23AQI
11th June 2025
36AQI
36AQI
12th June 2025
46AQI
46AQI
13th June 2025
45AQI
45AQI
14th June 2025
43AQI
43AQI
15th June 2025
43AQI
43AQI
16th June 2025
39AQI
39AQI
17th June 2025
36AQI
36AQI
18th June 2025
28AQI
28AQI
19th June 2025
41AQI
41AQI
20th June 2025
37AQI
37AQI
21st June 2025
33AQI
33AQI
22nd June 2025
34AQI
34AQI
23rd June 2025
35AQI
35AQI
24th June 2025
20AQI
20AQI
25th June 2025
21AQI
21AQI
26th June 2025
22AQI
22AQI
27th June 2025
30AQI
30AQI
28th June 2025
30AQI
30AQI
29th June 2025
24AQI
24AQI
30th June 2025
20AQI
20AQI
1st July 2025
22AQI
22AQI
2nd July 2025
21AQI
21AQI
3rd July 2025
28AQI
28AQI
4th July 2025
30AQI
30AQI
5th July 2025
27AQI
27AQI
6th July 2025
29AQI
29AQI
7th July 2025
22AQI
22AQI
8th July 2025
19AQI
19AQI
9th July 2025
18AQI
18AQI
10th July 2025
21AQI
21AQI
11th July 2025
25AQI
25AQI
12th July 2025
29AQI
29AQI
13th July 2025
24AQI
24AQI
14th July 2025
19AQI
19AQI
15th July 2025
17AQI
17AQI
16th July 2025
19AQI
19AQI
17th July 2025
17AQI
17AQI
18th July 2025
17AQI
17AQI
19th July 2025
19AQI
19AQI
20th July 2025
17AQI
17AQI
21st July 2025
23AQI
23AQI
22nd July 2025
14AQI
14AQI
23rd July 2025
14AQI
14AQI
24th July 2025
15AQI
15AQI
25th July 2025
16AQI
16AQI
26th July 2025
15AQI
15AQI
27th July 2025
15AQI
15AQI
28th July 2025
21AQI
21AQI
29th July 2025
23AQI
23AQI
30th July 2025
22AQI
22AQI
31st July 2025
22AQI
22AQI
1st August 2025
23AQI
23AQI
2nd August 2025
20AQI
20AQI
3rd August 2025
27AQI
27AQI
4th August 2025
35AQI
35AQI
5th August 2025
30AQI
30AQI
6th August 2025
30AQI
30AQI
7th August 2025
23AQI
23AQI
8th August 2025
21AQI
21AQI
21AQI
26AQI
31AQI
33AQI
21AQI
26AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202527AQI
6
30
31
30
31
8
136
Highest AQI recorded in
June33AQI
Lowest AQI recorded in
March21AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
27AQILeast Polluted Year Recorded
2025(Avg.)
27AQISanta Cruz's annual 2025 AQI (27) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
