Seaside, 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+
October Air Quality Analysis
Seaside, California, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Oct 2022
50AQILowest AQI recorded on
20th Oct 2021
6AQISame Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 39 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Seaside, California, United States
AQI
Day
Night
.
6 AM4th Oct 2025
7 PM
5 AM5th Oct 2025
Day time
Avg. Highest Time
3PM4th Oct
50AQI
Avg. Lowest Time
9AM4th Oct
22AQI
Night time
Avg. Highest Time
7PM4th Oct
55AQI
Avg. Lowest Time
2AM5th Oct
26AQI
In the last 24 hours,
Seaside's AQI reached its highest point of 55 at 7 PM during the Night, while the lowest point, 22, was recorded at 9 AM during the Day between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Seaside, California, United States
SepOct
05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
5th Sep 2025236 AMAQI
5th Sep 2025237 AMAQI
5th Sep 2025238 AMAQI
5th Sep 2025229 AMAQI
5th Sep 20252410 AMAQI
5th Sep 20252211 AMAQI
5th Sep 20252812 PMAQI
5th Sep 2025281 PMAQI
5th Sep 2025262 PMAQI
5th Sep 2025313 PMAQI
5th Sep 2025364 PMAQI
5th Sep 2025375 PMAQI
5th Sep 2025466 PMAQI
5th Sep 2025277 PMAQI
5th Sep 2025408 PMAQI
5th Sep 2025419 PMAQI
5th Sep 20253710 PMAQI
5th Sep 20253511 PMAQI
6th Sep 20253312 AMAQI
6th Sep 2025341 AMAQI
6th Sep 2025292 AMAQI
6th Sep 2025303 AMAQI
6th Sep 2025384 AMAQI
6th Sep 2025475 AMAQI
15°C14/17°C
6th Sep 2025326 AMAQI
6th Sep 2025217 AMAQI
6th Sep 2025228 AMAQI
6th Sep 2025229 AMAQI
6th Sep 20252410 AMAQI
6th Sep 20252011 AMAQI
6th Sep 20252212 PMAQI
6th Sep 2025221 PMAQI
6th Sep 2025262 PMAQI
6th Sep 2025273 PMAQI
6th Sep 2025394 PMAQI
6th Sep 2025345 PMAQI
6th Sep 2025426 PMAQI
6th Sep 2025327 PMAQI
6th Sep 2025338 PMAQI
6th Sep 2025369 PMAQI
6th Sep 20253810 PMAQI
6th Sep 20253511 PMAQI
7th Sep 20253212 AMAQI
7th Sep 2025291 AMAQI
7th Sep 2025262 AMAQI
7th Sep 2025263 AMAQI
7th Sep 2025244 AMAQI
7th Sep 2025215 AMAQI
16°C13/18°C
7th Sep 2025216 AMAQI
7th Sep 2025227 AMAQI
7th Sep 2025228 AMAQI
7th Sep 2025219 AMAQI
7th Sep 20251910 AMAQI
7th Sep 20252011 AMAQI
7th Sep 20251912 PMAQI
7th Sep 2025241 PMAQI
7th Sep 2025232 PMAQI
7th Sep 2025253 PMAQI
7th Sep 2025204 PMAQI
7th Sep 2025205 PMAQI
7th Sep 2025206 PMAQI
7th Sep 2025207 PMAQI
7th Sep 2025208 PMAQI
7th Sep 2025199 PMAQI
7th Sep 20252010 PMAQI
7th Sep 20252111 PMAQI
8th Sep 20252312 AMAQI
8th Sep 2025211 AMAQI
8th Sep 2025212 AMAQI
8th Sep 2025213 AMAQI
8th Sep 2025244 AMAQI
8th Sep 2025265 AMAQI
16°C14/19°C
8th Sep 2025206 AMAQI
8th Sep 2025187 AMAQI
8th Sep 2025218 AMAQI
8th Sep 2025219 AMAQI
8th Sep 20252110 AMAQI
8th Sep 20252211 AMAQI
8th Sep 20252012 PMAQI
8th Sep 2025211 PMAQI
8th Sep 2025222 PMAQI
8th Sep 2025223 PMAQI
8th Sep 2025244 PMAQI
8th Sep 2025255 PMAQI
8th Sep 2025246 PMAQI
8th Sep 2025197 PMAQI
8th Sep 2025258 PMAQI
8th Sep 2025329 PMAQI
8th Sep 20253210 PMAQI
8th Sep 20253311 PMAQI
9th Sep 20252612 AMAQI
9th Sep 2025241 AMAQI
9th Sep 2025212 AMAQI
9th Sep 2025193 AMAQI
9th Sep 2025184 AMAQI
9th Sep 2025195 AMAQI
16°C14/19°C
9th Sep 2025186 AMAQI
9th Sep 2025187 AMAQI
9th Sep 2025178 AMAQI
9th Sep 2025189 AMAQI
9th Sep 20251910 AMAQI
9th Sep 20251911 AMAQI
9th Sep 20252012 PMAQI
9th Sep 2025201 PMAQI
9th Sep 2025182 PMAQI
9th Sep 2025183 PMAQI
9th Sep 2025214 PMAQI
9th Sep 2025265 PMAQI
9th Sep 2025286 PMAQI
9th Sep 2025237 PMAQI
9th Sep 2025268 PMAQI
9th Sep 2025309 PMAQI
9th Sep 20253110 PMAQI
9th Sep 20252711 PMAQI
10th Sep 20252812 AMAQI
10th Sep 2025241 AMAQI
10th Sep 2025242 AMAQI
10th Sep 2025213 AMAQI
10th Sep 2025304 AMAQI
10th Sep 2025305 AMAQI
17°C16/19°C
10th Sep 2025236 AMAQI
10th Sep 2025177 AMAQI
10th Sep 2025168 AMAQI
10th Sep 2025169 AMAQI
10th Sep 20251510 AMAQI
10th Sep 20251611 AMAQI
10th Sep 20251612 PMAQI
10th Sep 2025181 PMAQI
10th Sep 2025162 PMAQI
10th Sep 2025183 PMAQI
10th Sep 2025204 PMAQI
10th Sep 2025235 PMAQI
10th Sep 2025266 PMAQI
10th Sep 2025197 PMAQI
10th Sep 2025238 PMAQI
10th Sep 2025289 PMAQI
10th Sep 20252910 PMAQI
10th Sep 20252211 PMAQI
11th Sep 20252512 AMAQI
11th Sep 2025231 AMAQI
11th Sep 2025282 AMAQI
11th Sep 2025313 AMAQI
11th Sep 2025404 AMAQI
11th Sep 2025445 AMAQI
17°C15/19°C
11th Sep 2025346 AMAQI
11th Sep 2025267 AMAQI
11th Sep 2025208 AMAQI
11th Sep 2025189 AMAQI
11th Sep 20251910 AMAQI
11th Sep 20251911 AMAQI
11th Sep 20252312 PMAQI
11th Sep 2025281 PMAQI
11th Sep 2025272 PMAQI
11th Sep 2025253 PMAQI
11th Sep 2025234 PMAQI
11th Sep 2025275 PMAQI
11th Sep 2025286 PMAQI
11th Sep 2025227 PMAQI
11th Sep 2025308 PMAQI
11th Sep 2025359 PMAQI
11th Sep 20253510 PMAQI
11th Sep 20253211 PMAQI
12th Sep 20253012 AMAQI
12th Sep 2025311 AMAQI
12th Sep 2025302 AMAQI
12th Sep 2025253 AMAQI
12th Sep 2025284 AMAQI
12th Sep 2025315 AMAQI
17°C15/18°C
12th Sep 2025296 AMAQI
12th Sep 2025307 AMAQI
12th Sep 2025308 AMAQI
12th Sep 2025309 AMAQI
12th Sep 20252810 AMAQI
12th Sep 20252411 AMAQI
12th Sep 20252512 PMAQI
12th Sep 2025271 PMAQI
12th Sep 2025302 PMAQI
12th Sep 2025293 PMAQI
12th Sep 2025304 PMAQI
12th Sep 2025305 PMAQI
12th Sep 2025406 PMAQI
12th Sep 2025287 PMAQI
12th Sep 2025388 PMAQI
12th Sep 2025429 PMAQI
12th Sep 20254010 PMAQI
12th Sep 20253911 PMAQI
13th Sep 20254212 AMAQI
13th Sep 2025371 AMAQI
13th Sep 2025352 AMAQI
13th Sep 2025383 AMAQI
13th Sep 2025424 AMAQI
13th Sep 2025445 AMAQI
16°C14/18°C
13th Sep 2025366 AMAQI
13th Sep 2025297 AMAQI
13th Sep 2025248 AMAQI
13th Sep 2025239 AMAQI
13th Sep 20252510 AMAQI
13th Sep 20253011 AMAQI
13th Sep 20252812 PMAQI
13th Sep 2025301 PMAQI
13th Sep 2025322 PMAQI
13th Sep 2025323 PMAQI
13th Sep 2025304 PMAQI
13th Sep 2025315 PMAQI
13th Sep 2025326 PMAQI
13th Sep 2025307 PMAQI
13th Sep 2025308 PMAQI
13th Sep 2025309 PMAQI
13th Sep 20253010 PMAQI
13th Sep 20252911 PMAQI
14th Sep 20252912 AMAQI
14th Sep 2025281 AMAQI
14th Sep 2025282 AMAQI
14th Sep 2025253 AMAQI
14th Sep 2025384 AMAQI
14th Sep 2025385 AMAQI
16°C14/18°C
14th Sep 2025266 AMAQI
14th Sep 2025267 AMAQI
14th Sep 2025218 AMAQI
14th Sep 2025219 AMAQI
14th Sep 20251910 AMAQI
14th Sep 20252111 AMAQI
14th Sep 20252112 PMAQI
14th Sep 2025271 PMAQI
14th Sep 2025262 PMAQI
14th Sep 2025273 PMAQI
14th Sep 2025214 PMAQI
14th Sep 2025215 PMAQI
14th Sep 2025196 PMAQI
14th Sep 2025217 PMAQI
14th Sep 2025208 PMAQI
14th Sep 2025189 PMAQI
14th Sep 20251910 PMAQI
14th Sep 20252011 PMAQI
15th Sep 20251912 AMAQI
15th Sep 2025171 AMAQI
15th Sep 2025182 AMAQI
15th Sep 2025183 AMAQI
15th Sep 2025284 AMAQI
15th Sep 2025265 AMAQI
17°C15/19°C
15th Sep 2025366 AMAQI
15th Sep 2025337 AMAQI
15th Sep 2025308 AMAQI
15th Sep 2025359 AMAQI
15th Sep 20252210 AMAQI
15th Sep 20251911 AMAQI
15th Sep 20252212 PMAQI
15th Sep 2025221 PMAQI
15th Sep 2025192 PMAQI
15th Sep 2025203 PMAQI
15th Sep 2025224 PMAQI
15th Sep 2025245 PMAQI
15th Sep 2025246 PMAQI
15th Sep 2025187 PMAQI
15th Sep 2025208 PMAQI
15th Sep 2025309 PMAQI
15th Sep 20252210 PMAQI
15th Sep 20252011 PMAQI
16th Sep 20252412 AMAQI
16th Sep 2025221 AMAQI
16th Sep 2025262 AMAQI
16th Sep 2025283 AMAQI
16th Sep 2025324 AMAQI
16th Sep 2025465 AMAQI
17°C15/20°C
16th Sep 2025306 AMAQI
16th Sep 2025307 AMAQI
16th Sep 2025238 AMAQI
16th Sep 2025259 AMAQI
16th Sep 20252710 AMAQI
16th Sep 20253011 AMAQI
16th Sep 20253012 PMAQI
16th Sep 2025321 PMAQI
16th Sep 2025262 PMAQI
16th Sep 2025303 PMAQI
16th Sep 2025304 PMAQI
16th Sep 2025325 PMAQI
16th Sep 2025406 PMAQI
16th Sep 2025297 PMAQI
16th Sep 2025248 PMAQI
16th Sep 2025249 PMAQI
16th Sep 20252610 PMAQI
16th Sep 20253211 PMAQI
17th Sep 20253912 AMAQI
17th Sep 2025361 AMAQI
17th Sep 2025382 AMAQI
17th Sep 2025383 AMAQI
17th Sep 2025354 AMAQI
17th Sep 2025335 AMAQI
18°C16/19°C
17th Sep 2025306 AMAQI
17th Sep 2025307 AMAQI
17th Sep 2025298 AMAQI
17th Sep 2025309 AMAQI
17th Sep 20252810 AMAQI
17th Sep 20252911 AMAQI
17th Sep 20253212 PMAQI
17th Sep 2025331 PMAQI
17th Sep 2025322 PMAQI
17th Sep 2025333 PMAQI
17th Sep 2025334 PMAQI
17th Sep 2025345 PMAQI
17th Sep 2025386 PMAQI
17th Sep 2025347 PMAQI
17th Sep 2025328 PMAQI
17th Sep 2025329 PMAQI
17th Sep 20253310 PMAQI
17th Sep 20253311 PMAQI
18th Sep 20253212 AMAQI
18th Sep 2025321 AMAQI
18th Sep 2025342 AMAQI
18th Sep 2025303 AMAQI
18th Sep 2025294 AMAQI
18th Sep 2025575 AMAQI
18°C16/20°C
18th Sep 2025366 AMAQI
18th Sep 2025317 AMAQI
18th Sep 2025308 AMAQI
18th Sep 2025289 AMAQI
18th Sep 20252810 AMAQI
18th Sep 20253011 AMAQI
18th Sep 20253212 PMAQI
18th Sep 2025321 PMAQI
18th Sep 2025322 PMAQI
18th Sep 2025343 PMAQI
18th Sep 2025354 PMAQI
18th Sep 2025355 PMAQI
18th Sep 2025346 PMAQI
18th Sep 2025337 PMAQI
18th Sep 2025348 PMAQI
18th Sep 2025379 PMAQI
18th Sep 20254010 PMAQI
18th Sep 20253611 PMAQI
19th Sep 20253612 AMAQI
19th Sep 2025351 AMAQI
19th Sep 2025382 AMAQI
19th Sep 2025383 AMAQI
19th Sep 2025424 AMAQI
19th Sep 2025535 AMAQI
17°C16/19°C
19th Sep 2025406 AMAQI
19th Sep 2025377 AMAQI
19th Sep 2025378 AMAQI
19th Sep 2025489 AMAQI
19th Sep 20254610 AMAQI
19th Sep 20254611 AMAQI
19th Sep 20255012 PMAQI
19th Sep 2025451 PMAQI
19th Sep 2025422 PMAQI
19th Sep 2025453 PMAQI
19th Sep 2025464 PMAQI
19th Sep 2025465 PMAQI
19th Sep 2025446 PMAQI
19th Sep 2025447 PMAQI
19th Sep 2025428 PMAQI
19th Sep 2025399 PMAQI
19th Sep 20253510 PMAQI
19th Sep 20253711 PMAQI
20th Sep 20253512 AMAQI
20th Sep 2025351 AMAQI
20th Sep 2025342 AMAQI
20th Sep 2025363 AMAQI
20th Sep 2025284 AMAQI
20th Sep 2025235 AMAQI
17°C15/19°C
20th Sep 2025246 AMAQI
20th Sep 2025317 AMAQI
20th Sep 2025308 AMAQI
20th Sep 2025309 AMAQI
20th Sep 20252610 AMAQI
20th Sep 20252411 AMAQI
20th Sep 20252612 PMAQI
20th Sep 2025321 PMAQI
20th Sep 2025282 PMAQI
20th Sep 2025293 PMAQI
20th Sep 2025324 PMAQI
20th Sep 2025345 PMAQI
20th Sep 2025366 PMAQI
20th Sep 2025327 PMAQI
20th Sep 2025318 PMAQI
20th Sep 2025339 PMAQI
20th Sep 20253210 PMAQI
20th Sep 20253111 PMAQI
21st Sep 20253212 AMAQI
21st Sep 2025321 AMAQI
21st Sep 2025332 AMAQI
21st Sep 2025303 AMAQI
21st Sep 2025294 AMAQI
21st Sep 2025405 AMAQI
16°C14/19°C
21st Sep 2025346 AMAQI
21st Sep 2025307 AMAQI
21st Sep 2025288 AMAQI
21st Sep 2025279 AMAQI
21st Sep 20252310 AMAQI
21st Sep 20252111 AMAQI
21st Sep 20252212 PMAQI
21st Sep 2025271 PMAQI
21st Sep 2025302 PMAQI
21st Sep 2025313 PMAQI
21st Sep 2025304 PMAQI
21st Sep 2025315 PMAQI
21st Sep 2025326 PMAQI
21st Sep 2025307 PMAQI
21st Sep 2025328 PMAQI
21st Sep 2025369 PMAQI
21st Sep 20253610 PMAQI
21st Sep 20253411 PMAQI
22nd Sep 20253312 AMAQI
22nd Sep 2025301 AMAQI
22nd Sep 2025282 AMAQI
22nd Sep 2025283 AMAQI
22nd Sep 2025264 AMAQI
22nd Sep 2025535 AMAQI
17°C14/22°C
22nd Sep 2025276 AMAQI
22nd Sep 2025257 AMAQI
22nd Sep 2025228 AMAQI
22nd Sep 2025229 AMAQI
22nd Sep 20252010 AMAQI
22nd Sep 20252411 AMAQI
22nd Sep 20252412 PMAQI
22nd Sep 2025241 PMAQI
22nd Sep 2025252 PMAQI
22nd Sep 2025263 PMAQI
22nd Sep 2025254 PMAQI
22nd Sep 2025305 PMAQI
22nd Sep 2025326 PMAQI
22nd Sep 2025317 PMAQI
22nd Sep 2025348 PMAQI
22nd Sep 2025389 PMAQI
22nd Sep 20253810 PMAQI
22nd Sep 20253811 PMAQI
23rd Sep 20253512 AMAQI
23rd Sep 2025271 AMAQI
23rd Sep 2025262 AMAQI
23rd Sep 2025283 AMAQI
23rd Sep 2025344 AMAQI
23rd Sep 2025495 AMAQI
17°C14/21°C
23rd Sep 2025366 AMAQI
23rd Sep 2025307 AMAQI
23rd Sep 2025248 AMAQI
23rd Sep 2025229 AMAQI
23rd Sep 20252210 AMAQI
23rd Sep 20252611 AMAQI
23rd Sep 20252712 PMAQI
23rd Sep 2025291 PMAQI
23rd Sep 2025332 PMAQI
23rd Sep 2025363 PMAQI
23rd Sep 2025404 PMAQI
23rd Sep 2025415 PMAQI
23rd Sep 2025416 PMAQI
23rd Sep 2025367 PMAQI
23rd Sep 2025378 PMAQI
23rd Sep 2025409 PMAQI
23rd Sep 20254210 PMAQI
23rd Sep 20253811 PMAQI
24th Sep 20253812 AMAQI
24th Sep 2025391 AMAQI
24th Sep 2025402 AMAQI
24th Sep 2025403 AMAQI
24th Sep 2025404 AMAQI
24th Sep 2025415 AMAQI
20°C13/29°C
24th Sep 2025366 AMAQI
24th Sep 2025387 AMAQI
24th Sep 2025368 AMAQI
24th Sep 2025329 AMAQI
24th Sep 20252910 AMAQI
24th Sep 20253011 AMAQI
24th Sep 20253012 PMAQI
24th Sep 2025341 PMAQI
24th Sep 2025422 PMAQI
24th Sep 2025393 PMAQI
24th Sep 2025354 PMAQI
24th Sep 2025325 PMAQI
24th Sep 2025326 PMAQI
24th Sep 2025387 PMAQI
24th Sep 2025388 PMAQI
24th Sep 2025349 PMAQI
24th Sep 20253510 PMAQI
24th Sep 20253411 PMAQI
25th Sep 20252212 AMAQI
25th Sep 2025151 AMAQI
25th Sep 2025162 AMAQI
25th Sep 2025153 AMAQI
25th Sep 2025314 AMAQI
25th Sep 2025585 AMAQI
20°C16/25°C
25th Sep 2025276 AMAQI
25th Sep 2025227 AMAQI
25th Sep 2025198 AMAQI
25th Sep 2025289 AMAQI
25th Sep 20253610 AMAQI
25th Sep 20253811 AMAQI
25th Sep 20253412 PMAQI
25th Sep 2025281 PMAQI
25th Sep 2025302 PMAQI
25th Sep 2025353 PMAQI
25th Sep 2025364 PMAQI
25th Sep 2025285 PMAQI
25th Sep 2025316 PMAQI
25th Sep 2025407 PMAQI
25th Sep 2025388 PMAQI
25th Sep 2025399 PMAQI
25th Sep 20253410 PMAQI
25th Sep 20253311 PMAQI
26th Sep 20252812 AMAQI
26th Sep 2025311 AMAQI
26th Sep 2025352 AMAQI
26th Sep 2025343 AMAQI
26th Sep 2025474 AMAQI
26th Sep 2025555 AMAQI
19°C16/24°C
26th Sep 2025246 AMAQI
26th Sep 2025227 AMAQI
26th Sep 2025228 AMAQI
26th Sep 2025229 AMAQI
26th Sep 20252910 AMAQI
26th Sep 20253411 AMAQI
26th Sep 20252412 PMAQI
26th Sep 2025281 PMAQI
26th Sep 2025302 PMAQI
26th Sep 2025413 PMAQI
26th Sep 2025534 PMAQI
26th Sep 2025535 PMAQI
26th Sep 2025526 PMAQI
26th Sep 2025467 PMAQI
26th Sep 2025368 PMAQI
26th Sep 2025369 PMAQI
26th Sep 20255010 PMAQI
26th Sep 20254811 PMAQI
27th Sep 20255112 AMAQI
27th Sep 2025371 AMAQI
27th Sep 2025382 AMAQI
27th Sep 2025423 AMAQI
27th Sep 2025394 AMAQI
27th Sep 2025435 AMAQI
17°C14/23°C
27th Sep 2025446 AMAQI
27th Sep 2025417 AMAQI
27th Sep 2025378 AMAQI
27th Sep 2025359 AMAQI
27th Sep 20253810 AMAQI
27th Sep 20254011 AMAQI
27th Sep 20253412 PMAQI
27th Sep 2025321 PMAQI
27th Sep 2025262 PMAQI
27th Sep 2025233 PMAQI
27th Sep 2025274 PMAQI
27th Sep 2025325 PMAQI
27th Sep 2025266 PMAQI
27th Sep 2025247 PMAQI
27th Sep 2025208 PMAQI
27th Sep 2025179 PMAQI
27th Sep 20251710 PMAQI
27th Sep 20252311 PMAQI
28th Sep 20253112 AMAQI
28th Sep 2025301 AMAQI
28th Sep 2025312 AMAQI
28th Sep 2025283 AMAQI
28th Sep 2025424 AMAQI
28th Sep 2025515 AMAQI
17°C13/24°C
28th Sep 2025206 AMAQI
28th Sep 2025197 AMAQI
28th Sep 2025178 AMAQI
28th Sep 2025179 AMAQI
28th Sep 20251710 AMAQI
28th Sep 20251711 AMAQI
28th Sep 20251712 PMAQI
28th Sep 2025231 PMAQI
28th Sep 2025182 PMAQI
28th Sep 2025173 PMAQI
28th Sep 2025174 PMAQI
28th Sep 2025175 PMAQI
28th Sep 2025156 PMAQI
28th Sep 2025147 PMAQI
28th Sep 2025198 PMAQI
28th Sep 2025179 PMAQI
28th Sep 20251710 PMAQI
28th Sep 20252211 PMAQI
29th Sep 20252612 AMAQI
29th Sep 2025241 AMAQI
29th Sep 2025252 AMAQI
29th Sep 2025203 AMAQI
29th Sep 2025254 AMAQI
29th Sep 2025175 AMAQI
19°C17/24°C
29th Sep 2025166 AMAQI
29th Sep 2025187 AMAQI
29th Sep 2025228 AMAQI
29th Sep 2025219 AMAQI
29th Sep 20251910 AMAQI
29th Sep 20251411 AMAQI
29th Sep 20251512 PMAQI
29th Sep 2025191 PMAQI
29th Sep 2025172 PMAQI
29th Sep 2025233 PMAQI
29th Sep 2025204 PMAQI
29th Sep 2025235 PMAQI
29th Sep 2025276 PMAQI
29th Sep 2025277 PMAQI
29th Sep 2025308 PMAQI
29th Sep 2025339 PMAQI
29th Sep 20253410 PMAQI
29th Sep 20253511 PMAQI
30th Sep 20253212 AMAQI
30th Sep 2025321 AMAQI
30th Sep 2025362 AMAQI
30th Sep 2025263 AMAQI
30th Sep 2025324 AMAQI
30th Sep 2025465 AMAQI
19°C16/23°C
30th Sep 2025356 AMAQI
30th Sep 2025367 AMAQI
30th Sep 2025338 AMAQI
30th Sep 2025339 AMAQI
30th Sep 20253910 AMAQI
30th Sep 20253011 AMAQI
30th Sep 20253012 PMAQI
30th Sep 2025321 PMAQI
30th Sep 2025262 PMAQI
30th Sep 2025253 PMAQI
30th Sep 2025234 PMAQI
30th Sep 2025225 PMAQI
30th Sep 2025186 PMAQI
30th Sep 2025157 PMAQI
30th Sep 2025168 PMAQI
30th Sep 2025169 PMAQI
30th Sep 20251110 PMAQI
30th Sep 20251111 PMAQI
1st Oct 20251112 AMAQI
1st Oct 2025111 AMAQI
1st Oct 2025142 AMAQI
1st Oct 2025143 AMAQI
1st Oct 2025114 AMAQI
1st Oct 2025215 AMAQI
19°C15/27°C
1st Oct 2025226 AMAQI
1st Oct 2025227 AMAQI
1st Oct 2025188 AMAQI
1st Oct 2025259 AMAQI
1st Oct 20253910 AMAQI
1st Oct 20252211 AMAQI
1st Oct 2025912 PMAQI
1st Oct 2025101 PMAQI
1st Oct 2025102 PMAQI
1st Oct 2025113 PMAQI
1st Oct 2025134 PMAQI
1st Oct 2025125 PMAQI
1st Oct 2025126 PMAQI
1st Oct 2025137 PMAQI
1st Oct 2025218 PMAQI
1st Oct 2025169 PMAQI
1st Oct 20252110 PMAQI
1st Oct 20251611 PMAQI
2nd Oct 20251712 AMAQI
2nd Oct 2025121 AMAQI
2nd Oct 2025112 AMAQI
2nd Oct 2025323 AMAQI
2nd Oct 2025404 AMAQI
2nd Oct 2025705 AMAQI
19°C15/26°C
2nd Oct 2025466 AMAQI
2nd Oct 202567 AMAQI
2nd Oct 202568 AMAQI
2nd Oct 202589 AMAQI
2nd Oct 20251110 AMAQI
2nd Oct 2025911 AMAQI
2nd Oct 20251512 PMAQI
2nd Oct 2025111 PMAQI
2nd Oct 2025102 PMAQI
2nd Oct 202573 PMAQI
2nd Oct 202584 PMAQI
2nd Oct 202585 PMAQI
2nd Oct 2025196 PMAQI
2nd Oct 2025297 PMAQI
2nd Oct 2025318 PMAQI
2nd Oct 2025489 PMAQI
2nd Oct 20254110 PMAQI
2nd Oct 20253211 PMAQI
3rd Oct 20252512 AMAQI
3rd Oct 2025221 AMAQI
3rd Oct 2025152 AMAQI
3rd Oct 2025163 AMAQI
3rd Oct 2025344 AMAQI
3rd Oct 2025585 AMAQI
18°C16/21°C
3rd Oct 2025246 AMAQI
3rd Oct 2025207 AMAQI
3rd Oct 2025268 AMAQI
3rd Oct 2025279 AMAQI
3rd Oct 20253510 AMAQI
3rd Oct 20254311 AMAQI
3rd Oct 20253612 PMAQI
3rd Oct 2025401 PMAQI
3rd Oct 2025512 PMAQI
3rd Oct 2025463 PMAQI
3rd Oct 2025374 PMAQI
3rd Oct 2025265 PMAQI
3rd Oct 2025326 PMAQI
3rd Oct 2025307 PMAQI
3rd Oct 2025318 PMAQI
3rd Oct 2025349 PMAQI
3rd Oct 20253010 PMAQI
3rd Oct 20252411 PMAQI
4th Oct 20253412 AMAQI
4th Oct 2025411 AMAQI
4th Oct 2025392 AMAQI
4th Oct 2025343 AMAQI
4th Oct 2025354 AMAQI
4th Oct 2025615 AMAQI
17°C14/20°C
4th Oct 2025376 AMAQI
4th Oct 2025367 AMAQI
4th Oct 2025248 AMAQI
4th Oct 2025229 AMAQI
4th Oct 20253210 AMAQI
4th Oct 20254011 AMAQI
4th Oct 20254912 PMAQI
4th Oct 2025451 PMAQI
4th Oct 2025402 PMAQI
4th Oct 2025503 PMAQI
4th Oct 2025434 PMAQI
4th Oct 2025425 PMAQI
4th Oct 2025426 PMAQI
4th Oct 2025557 PMAQI
4th Oct 2025558 PMAQI
4th Oct 2025449 PMAQI
4th Oct 20254510 PMAQI
4th Oct 20253811 PMAQI
5th Oct 20253912 AMAQI
5th Oct 2025431 AMAQI
5th Oct 2025262 AMAQI
5th Oct 2025343 AMAQI
5th Oct 2025344 AMAQI
5th Oct 2025365 AMAQI
17°C15/20°C
5th Oct 2025356 AMAQI
6 AM5th Oct 2025307 AMAQI
5th Oct 2025308 AMAQI
5th Oct 2025259 AMAQI
5th Oct 20253010 AMAQI
12 PM
7 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 PM
31AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
8 AM
24AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 PM to 6 PM (Avg. 31), while the lowest AQI was between 8 AM to 8 AM (Avg. 24).
Night time
Avg. Highest Time
5 AM
41AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
1 AM - 3 AM
28AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 5 AM (Avg. 41), while the lowest AQI was between 1 AM to 3 AM (Avg. 28).
2025 Days Vs Air Quality
Seaside, California, United States
2025
100%
276
0.3%
1
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Good
276 DaysModerate
1 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 278 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
Seaside, 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
33AQI
33AQI
2nd January 2025
26AQI
26AQI
3rd January 2025
27AQI
27AQI
4th January 2025
23AQI
23AQI
5th January 2025
24AQI
24AQI
6th January 2025
21AQI
21AQI
7th January 2025
26AQI
26AQI
8th January 2025
22AQI
22AQI
9th January 2025
24AQI
24AQI
10th January 2025
34AQI
34AQI
11th January 2025
33AQI
33AQI
12th January 2025
32AQI
32AQI
13th January 2025
29AQI
29AQI
14th January 2025
25AQI
25AQI
15th January 2025
27AQI
27AQI
16th January 2025
35AQI
35AQI
17th January 2025
31AQI
31AQI
18th January 2025
36AQI
36AQI
19th January 2025
38AQI
38AQI
20th January 2025
34AQI
34AQI
21st January 2025
30AQI
30AQI
22nd January 2025
32AQI
32AQI
23rd January 2025
33AQI
33AQI
24th January 2025
36AQI
36AQI
25th January 2025
36AQI
36AQI
26th January 2025
29AQI
29AQI
27th January 2025
26AQI
26AQI
28th January 2025
28AQI
28AQI
29th January 2025
29AQI
29AQI
30th January 2025
31AQI
31AQI
31st January 2025
29AQI
29AQI
1st February 2025
28AQI
28AQI
2nd February 2025
27AQI
27AQI
3rd February 2025
22AQI
22AQI
4th February 2025
23AQI
23AQI
5th February 2025
25AQI
25AQI
6th February 2025
23AQI
23AQI
7th February 2025
27AQI
27AQI
8th February 2025
22AQI
22AQI
9th February 2025
24AQI
24AQI
10th February 2025
29AQI
29AQI
11th February 2025
27AQI
27AQI
12th February 2025
26AQI
26AQI
13th February 2025
27AQI
27AQI
14th February 2025
29AQI
29AQI
15th February 2025
28AQI
28AQI
16th February 2025
31AQI
31AQI
17th February 2025
23AQI
23AQI
18th February 2025
23AQI
23AQI
19th February 2025
26AQI
26AQI
20th February 2025
24AQI
24AQI
21st February 2025
22AQI
22AQI
22nd February 2025
29AQI
29AQI
23rd February 2025
22AQI
22AQI
24th February 2025
23AQI
23AQI
25th February 2025
22AQI
22AQI
26th February 2025
27AQI
27AQI
27th February 2025
26AQI
26AQI
28th February 2025
28AQI
28AQI
1st March 2025
26AQI
26AQI
2nd March 2025
28AQI
28AQI
3rd March 2025
22AQI
22AQI
4th March 2025
22AQI
22AQI
5th March 2025
24AQI
24AQI
6th March 2025
26AQI
26AQI
7th March 2025
24AQI
24AQI
8th March 2025
23AQI
23AQI
9th March 2025
24AQI
24AQI
10th March 2025
25AQI
25AQI
11th March 2025
29AQI
29AQI
12th March 2025
24AQI
24AQI
13th March 2025
19AQI
19AQI
14th March 2025
31AQI
31AQI
15th March 2025
36AQI
36AQI
16th March 2025
24AQI
24AQI
17th March 2025
16AQI
16AQI
18th March 2025
16AQI
16AQI
19th March 2025
17AQI
17AQI
20th March 2025
24AQI
24AQI
21st March 2025
17AQI
17AQI
22nd March 2025
29AQI
29AQI
23rd March 2025
21AQI
21AQI
24th March 2025
18AQI
18AQI
25th March 2025
23AQI
23AQI
26th March 2025
23AQI
23AQI
27th March 2025
17AQI
17AQI
28th March 2025
21AQI
21AQI
29th March 2025
16AQI
16AQI
30th March 2025
19AQI
19AQI
31st March 2025
17AQI
17AQI
1st April 2025
16AQI
16AQI
2nd April 2025
20AQI
20AQI
3rd April 2025
16AQI
16AQI
4th April 2025
23AQI
23AQI
5th April 2025
17AQI
17AQI
6th April 2025
14AQI
14AQI
7th April 2025
15AQI
15AQI
8th April 2025
14AQI
14AQI
9th April 2025
14AQI
14AQI
10th April 2025
18AQI
18AQI
11th April 2025
18AQI
18AQI
12th April 2025
25AQI
25AQI
13th April 2025
23AQI
23AQI
14th April 2025
24AQI
24AQI
15th April 2025
26AQI
26AQI
16th April 2025
33AQI
33AQI
17th April 2025
27AQI
27AQI
18th April 2025
26AQI
26AQI
19th April 2025
25AQI
25AQI
20th April 2025
26AQI
26AQI
21st April 2025
28AQI
28AQI
22nd April 2025
23AQI
23AQI
23rd April 2025
36AQI
36AQI
24th April 2025
31AQI
31AQI
25th April 2025
23AQI
23AQI
26th April 2025
18AQI
18AQI
27th April 2025
24AQI
24AQI
28th April 2025
24AQI
24AQI
29th April 2025
27AQI
27AQI
30th April 2025
25AQI
25AQI
1st May 2025
22AQI
22AQI
2nd May 2025
26AQI
26AQI
3rd May 2025
22AQI
22AQI
4th May 2025
37AQI
37AQI
5th May 2025
30AQI
30AQI
6th May 2025
36AQI
36AQI
7th May 2025
41AQI
41AQI
8th May 2025
33AQI
33AQI
9th May 2025
29AQI
29AQI
10th May 2025
29AQI
29AQI
11th May 2025
24AQI
24AQI
12th May 2025
18AQI
18AQI
13th May 2025
19AQI
19AQI
14th May 2025
29AQI
29AQI
15th May 2025
30AQI
30AQI
16th May 2025
34AQI
34AQI
17th May 2025
23AQI
23AQI
18th May 2025
27AQI
27AQI
19th May 2025
34AQI
34AQI
20th May 2025
28AQI
28AQI
21st May 2025
34AQI
34AQI
22nd May 2025
33AQI
33AQI
23rd May 2025
24AQI
24AQI
24th May 2025
28AQI
28AQI
25th May 2025
23AQI
23AQI
26th May 2025
19AQI
19AQI
27th May 2025
23AQI
23AQI
28th May 2025
25AQI
25AQI
29th May 2025
19AQI
19AQI
30th May 2025
28AQI
28AQI
31st May 2025
39AQI
39AQI
1st June 2025
46AQI
46AQI
2nd June 2025
45AQI
45AQI
3rd June 2025
28AQI
28AQI
4th June 2025
31AQI
31AQI
5th June 2025
37AQI
37AQI
6th June 2025
26AQI
26AQI
7th June 2025
28AQI
28AQI
8th June 2025
21AQI
21AQI
9th June 2025
17AQI
17AQI
10th June 2025
24AQI
24AQI
11th June 2025
34AQI
34AQI
12th June 2025
43AQI
43AQI
13th June 2025
40AQI
40AQI
14th June 2025
38AQI
38AQI
15th June 2025
39AQI
39AQI
16th June 2025
39AQI
39AQI
17th June 2025
26AQI
26AQI
18th June 2025
28AQI
28AQI
19th June 2025
34AQI
34AQI
20th June 2025
35AQI
35AQI
21st June 2025
30AQI
30AQI
22nd June 2025
29AQI
29AQI
23rd June 2025
26AQI
26AQI
24th June 2025
23AQI
23AQI
25th June 2025
19AQI
19AQI
26th June 2025
20AQI
20AQI
27th June 2025
20AQI
20AQI
28th June 2025
23AQI
23AQI
29th June 2025
20AQI
20AQI
30th June 2025
20AQI
20AQI
1st July 2025
21AQI
21AQI
2nd July 2025
20AQI
20AQI
3rd July 2025
30AQI
30AQI
4th July 2025
24AQI
24AQI
5th July 2025
28AQI
28AQI
6th July 2025
26AQI
26AQI
7th July 2025
28AQI
28AQI
8th July 2025
22AQI
22AQI
9th July 2025
21AQI
21AQI
10th July 2025
20AQI
20AQI
11th July 2025
31AQI
31AQI
12th July 2025
30AQI
30AQI
13th July 2025
24AQI
24AQI
14th July 2025
19AQI
19AQI
15th July 2025
18AQI
18AQI
16th July 2025
18AQI
18AQI
17th July 2025
18AQI
18AQI
18th July 2025
17AQI
17AQI
19th July 2025
19AQI
19AQI
20th July 2025
19AQI
19AQI
21st July 2025
19AQI
19AQI
22nd July 2025
14AQI
14AQI
23rd July 2025
14AQI
14AQI
24th July 2025
15AQI
15AQI
25th July 2025
15AQI
15AQI
26th July 2025
15AQI
15AQI
27th July 2025
17AQI
17AQI
28th July 2025
19AQI
19AQI
29th July 2025
24AQI
24AQI
30th July 2025
19AQI
19AQI
31st July 2025
22AQI
22AQI
1st August 2025
25AQI
25AQI
2nd August 2025
27AQI
27AQI
3rd August 2025
30AQI
30AQI
4th August 2025
37AQI
37AQI
5th August 2025
29AQI
29AQI
6th August 2025
34AQI
34AQI
7th August 2025
23AQI
23AQI
8th August 2025
22AQI
22AQI
9th August 2025
30AQI
30AQI
10th August 2025
24AQI
24AQI
11th August 2025
33AQI
33AQI
12th August 2025
34AQI
34AQI
13th August 2025
29AQI
29AQI
14th August 2025
28AQI
28AQI
15th August 2025
35AQI
35AQI
16th August 2025
22AQI
22AQI
17th August 2025
18AQI
18AQI
18th August 2025
24AQI
24AQI
19th August 2025
32AQI
32AQI
20th August 2025
32AQI
32AQI
21st August 2025
43AQI
43AQI
22nd August 2025
51AQI
51AQI
23rd August 2025
41AQI
41AQI
24th August 2025
35AQI
35AQI
25th August 2025
37AQI
37AQI
26th August 2025
35AQI
35AQI
27th August 2025
35AQI
35AQI
28th August 2025
37AQI
37AQI
29th August 2025
34AQI
34AQI
30th August 2025
34AQI
34AQI
31st August 2025
34AQI
34AQI
1st September 2025
31AQI
31AQI
2nd September 2025
43AQI
43AQI
3rd September 2025
35AQI
35AQI
4th September 2025
35AQI
35AQI
5th September 2025
30AQI
30AQI
6th September 2025
32AQI
32AQI
7th September 2025
22AQI
22AQI
8th September 2025
24AQI
24AQI
9th September 2025
22AQI
22AQI
10th September 2025
23AQI
23AQI
11th September 2025
29AQI
29AQI
12th September 2025
31AQI
31AQI
13th September 2025
33AQI
33AQI
14th September 2025
24AQI
24AQI
15th September 2025
23AQI
23AQI
16th September 2025
29AQI
29AQI
17th September 2025
34AQI
34AQI
18th September 2025
34AQI
34AQI
19th September 2025
42AQI
42AQI
20th September 2025
31AQI
31AQI
21st September 2025
31AQI
31AQI
22nd September 2025
30AQI
30AQI
23rd September 2025
34AQI
34AQI
24th September 2025
36AQI
36AQI
25th September 2025
31AQI
31AQI
26th September 2025
38AQI
38AQI
27th September 2025
33AQI
33AQI
28th September 2025
24AQI
24AQI
29th September 2025
24AQI
24AQI
30th September 2025
27AQI
27AQI
1st October 2025
16AQI
16AQI
2nd October 2025
22AQI
22AQI
3rd October 2025
29AQI
29AQI
4th October 2025
39AQI
39AQI
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
30AQI
25AQI
23AQI
23AQI
28AQI
30AQI
21AQI
32AQI
31AQI
27AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202527AQI
31
28
31
30
31
30
31
30
1
30
4
276
1
Highest AQI recorded in
August32AQI
Lowest AQI recorded in
July21AQI
202427AQI
31
29
29
30
31
29
31
31
30
31
30
31
363
Highest AQI recorded in
October32AQI
Lowest AQI recorded in
January24AQI
202326AQI
31
28
28
30
31
29
20
29
2
24
4
31
27
31
339
6
Highest AQI recorded in
September32AQI
Lowest AQI recorded in
July20AQI
202226AQI
30
22
29
17
31
30
21
3
29
31
29
31
303
Highest AQI recorded in
October33AQI
Lowest AQI recorded in
August16AQI
202125AQI
30
28
31
30
31
30
31
31
30
31
30
28
361
Highest AQI recorded in
April30AQI
Lowest AQI recorded in
July21AQI
202034AQI
13
20
18
30
31
24
1
2
3
1
20
5
2
3
26
2
2
30
31
243
8
6
6
1
Highest AQI recorded in
September60AQI
Lowest AQI recorded in
November22AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
34AQILeast Polluted Year Recorded
2021(Avg.)
25AQISeaside's annual 2025 AQI (27) shows an average percentage change of -1.1% (improved AQI) compared to previous years: 2020 (34), 2021 (25), 2022 (26), 2023 (26), 2024 (27).
