Rio 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+
September Air Quality Analysis
Rio Vista, California, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
20th Sep 2023
125AQILowest AQI recorded on
27th Sep 2021
10AQISame Day Analysis (15th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 24 of Good air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 15th Sep - 16th Sep 2025
Rio Vista, California, United States
AQI
Day
Night
.
6 AM15th Sep 2025
7 PM
5 AM16th Sep 2025
Day time
Avg. Highest Time
9AM15th Sep
34AQI
Avg. Lowest Time
6AM15th Sep
22AQI
Night time
Avg. Highest Time
5AM16th Sep
44AQI
Avg. Lowest Time
9PM15th Sep
25AQI
In the last 24 hours,
Rio Vista's AQI reached its highest point of 44 at 5 AM during the Night, while the lowest point, 22, was recorded at 6 AM during the Day between 15th Sep and 16th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Rio Vista, California, United States
AugSep
17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th
Day
Night
17th Aug 2025156 AMAQI
17th Aug 2025167 AMAQI
17th Aug 2025188 AMAQI
17th Aug 2025189 AMAQI
17th Aug 20251710 AMAQI
17th Aug 20251711 AMAQI
17th Aug 20251712 PMAQI
17th Aug 2025151 PMAQI
17th Aug 2025142 PMAQI
17th Aug 2025143 PMAQI
17th Aug 2025164 PMAQI
17th Aug 2025135 PMAQI
17th Aug 2025136 PMAQI
17th Aug 2025167 PMAQI
17th Aug 2025188 PMAQI
17th Aug 2025199 PMAQI
17th Aug 20252210 PMAQI
17th Aug 20251811 PMAQI
18th Aug 20252012 AMAQI
18th Aug 2025201 AMAQI
18th Aug 2025192 AMAQI
18th Aug 2025173 AMAQI
18th Aug 2025184 AMAQI
18th Aug 2025185 AMAQI
20°C15/28°C
18th Aug 2025156 AMAQI
18th Aug 2025167 AMAQI
18th Aug 2025168 AMAQI
18th Aug 2025159 AMAQI
18th Aug 20251610 AMAQI
18th Aug 20251811 AMAQI
18th Aug 20251812 PMAQI
18th Aug 2025181 PMAQI
18th Aug 2025192 PMAQI
18th Aug 2025203 PMAQI
18th Aug 2025224 PMAQI
18th Aug 2025235 PMAQI
18th Aug 2025206 PMAQI
18th Aug 2025187 PMAQI
18th Aug 2025188 PMAQI
18th Aug 2025179 PMAQI
18th Aug 20251710 PMAQI
18th Aug 20252011 PMAQI
19th Aug 20251912 AMAQI
19th Aug 2025201 AMAQI
19th Aug 2025222 AMAQI
19th Aug 2025213 AMAQI
19th Aug 2025194 AMAQI
19th Aug 2025205 AMAQI
21°C14/31°C
19th Aug 2025196 AMAQI
19th Aug 2025227 AMAQI
19th Aug 2025228 AMAQI
19th Aug 2025229 AMAQI
19th Aug 20252410 AMAQI
19th Aug 20252411 AMAQI
19th Aug 20252612 PMAQI
19th Aug 2025261 PMAQI
19th Aug 2025262 PMAQI
19th Aug 2025283 PMAQI
19th Aug 2025284 PMAQI
19th Aug 2025245 PMAQI
19th Aug 2025236 PMAQI
19th Aug 2025227 PMAQI
19th Aug 2025218 PMAQI
19th Aug 2025229 PMAQI
19th Aug 20252210 PMAQI
19th Aug 20252211 PMAQI
20th Aug 20252612 AMAQI
20th Aug 2025271 AMAQI
20th Aug 2025282 AMAQI
20th Aug 2025273 AMAQI
20th Aug 2025264 AMAQI
20th Aug 2025265 AMAQI
22°C14/33°C
20th Aug 2025256 AMAQI
20th Aug 2025287 AMAQI
20th Aug 2025308 AMAQI
20th Aug 2025309 AMAQI
20th Aug 20253210 AMAQI
20th Aug 20253211 AMAQI
20th Aug 20253312 PMAQI
20th Aug 2025321 PMAQI
20th Aug 2025362 PMAQI
20th Aug 2025393 PMAQI
20th Aug 2025374 PMAQI
20th Aug 2025345 PMAQI
20th Aug 2025336 PMAQI
20th Aug 2025307 PMAQI
20th Aug 2025348 PMAQI
20th Aug 2025389 PMAQI
20th Aug 20252910 PMAQI
20th Aug 20252911 PMAQI
21st Aug 20253212 AMAQI
21st Aug 2025361 AMAQI
21st Aug 2025372 AMAQI
21st Aug 2025373 AMAQI
21st Aug 2025404 AMAQI
21st Aug 2025405 AMAQI
25°C14/38°C
21st Aug 2025396 AMAQI
21st Aug 2025417 AMAQI
21st Aug 2025388 AMAQI
21st Aug 2025389 AMAQI
21st Aug 20254210 AMAQI
21st Aug 20254811 AMAQI
21st Aug 20255112 PMAQI
21st Aug 2025491 PMAQI
21st Aug 2025522 PMAQI
21st Aug 2025523 PMAQI
21st Aug 2025514 PMAQI
21st Aug 2025485 PMAQI
21st Aug 2025446 PMAQI
21st Aug 2025397 PMAQI
21st Aug 2025418 PMAQI
21st Aug 2025449 PMAQI
21st Aug 20254410 PMAQI
21st Aug 20255211 PMAQI
22nd Aug 20255112 AMAQI
22nd Aug 2025541 AMAQI
22nd Aug 2025542 AMAQI
22nd Aug 2025533 AMAQI
22nd Aug 2025544 AMAQI
22nd Aug 2025535 AMAQI
27°C16/41°C
22nd Aug 2025536 AMAQI
22nd Aug 2025497 AMAQI
22nd Aug 2025528 AMAQI
22nd Aug 2025519 AMAQI
22nd Aug 20255110 AMAQI
22nd Aug 20254911 AMAQI
22nd Aug 20255212 PMAQI
22nd Aug 2025541 PMAQI
22nd Aug 2025552 PMAQI
22nd Aug 2025553 PMAQI
22nd Aug 2025554 PMAQI
22nd Aug 2025545 PMAQI
22nd Aug 2025566 PMAQI
22nd Aug 2025527 PMAQI
22nd Aug 2025508 PMAQI
22nd Aug 2025479 PMAQI
22nd Aug 20254410 PMAQI
22nd Aug 20254411 PMAQI
23rd Aug 20254012 AMAQI
23rd Aug 2025401 AMAQI
23rd Aug 2025392 AMAQI
23rd Aug 2025363 AMAQI
23rd Aug 2025374 AMAQI
23rd Aug 2025395 AMAQI
24°C15/36°C
23rd Aug 2025416 AMAQI
23rd Aug 2025417 AMAQI
23rd Aug 2025328 AMAQI
23rd Aug 2025319 AMAQI
23rd Aug 20253210 AMAQI
23rd Aug 20253211 AMAQI
23rd Aug 20253612 PMAQI
23rd Aug 2025361 PMAQI
23rd Aug 2025382 PMAQI
23rd Aug 2025363 PMAQI
23rd Aug 2025394 PMAQI
23rd Aug 2025375 PMAQI
23rd Aug 2025396 PMAQI
23rd Aug 2025397 PMAQI
23rd Aug 2025368 PMAQI
23rd Aug 2025369 PMAQI
23rd Aug 20253610 PMAQI
23rd Aug 20253211 PMAQI
24th Aug 20252712 AMAQI
24th Aug 2025291 AMAQI
24th Aug 2025282 AMAQI
24th Aug 2025263 AMAQI
24th Aug 2025264 AMAQI
24th Aug 2025285 AMAQI
24°C17/35°C
24th Aug 2025286 AMAQI
24th Aug 2025267 AMAQI
24th Aug 2025248 AMAQI
24th Aug 2025249 AMAQI
24th Aug 20252410 AMAQI
24th Aug 20252411 AMAQI
24th Aug 20252112 PMAQI
24th Aug 2025241 PMAQI
24th Aug 2025282 PMAQI
24th Aug 2025323 PMAQI
24th Aug 2025394 PMAQI
24th Aug 2025385 PMAQI
24th Aug 2025396 PMAQI
24th Aug 2025327 PMAQI
24th Aug 2025328 PMAQI
24th Aug 2025339 PMAQI
24th Aug 20253410 PMAQI
24th Aug 20253111 PMAQI
25th Aug 20253312 AMAQI
25th Aug 2025341 AMAQI
25th Aug 2025322 AMAQI
25th Aug 2025313 AMAQI
25th Aug 2025284 AMAQI
25th Aug 2025275 AMAQI
22°C16/33°C
25th Aug 2025276 AMAQI
25th Aug 2025267 AMAQI
25th Aug 2025228 AMAQI
25th Aug 2025229 AMAQI
25th Aug 20252310 AMAQI
25th Aug 20252211 AMAQI
25th Aug 20252212 PMAQI
25th Aug 2025241 PMAQI
25th Aug 2025252 PMAQI
25th Aug 2025303 PMAQI
25th Aug 2025344 PMAQI
25th Aug 2025375 PMAQI
25th Aug 2025416 PMAQI
25th Aug 2025287 PMAQI
25th Aug 2025328 PMAQI
25th Aug 2025349 PMAQI
25th Aug 20253110 PMAQI
25th Aug 20253311 PMAQI
26th Aug 20254312 AMAQI
26th Aug 2025361 AMAQI
26th Aug 2025342 AMAQI
26th Aug 2025343 AMAQI
26th Aug 2025354 AMAQI
26th Aug 2025375 AMAQI
23°C15/35°C
26th Aug 2025366 AMAQI
26th Aug 2025347 AMAQI
26th Aug 2025338 AMAQI
26th Aug 2025359 AMAQI
26th Aug 20253610 AMAQI
26th Aug 20253711 AMAQI
26th Aug 20253812 PMAQI
26th Aug 2025361 PMAQI
26th Aug 2025362 PMAQI
26th Aug 2025373 PMAQI
26th Aug 2025414 PMAQI
26th Aug 2025405 PMAQI
26th Aug 2025416 PMAQI
26th Aug 2025397 PMAQI
26th Aug 2025408 PMAQI
26th Aug 2025459 PMAQI
26th Aug 20254510 PMAQI
26th Aug 20254211 PMAQI
27th Aug 20254412 AMAQI
27th Aug 2025431 AMAQI
27th Aug 2025422 AMAQI
27th Aug 2025413 AMAQI
27th Aug 2025414 AMAQI
27th Aug 2025385 AMAQI
23°C16/35°C
27th Aug 2025386 AMAQI
27th Aug 2025377 AMAQI
27th Aug 2025358 AMAQI
27th Aug 2025379 AMAQI
27th Aug 20254010 AMAQI
27th Aug 20254311 AMAQI
27th Aug 20254412 PMAQI
27th Aug 2025451 PMAQI
27th Aug 2025482 PMAQI
27th Aug 2025493 PMAQI
27th Aug 2025474 PMAQI
27th Aug 2025505 PMAQI
27th Aug 2025456 PMAQI
27th Aug 2025417 PMAQI
27th Aug 2025448 PMAQI
27th Aug 2025439 PMAQI
27th Aug 20254210 PMAQI
27th Aug 20254511 PMAQI
28th Aug 20254612 AMAQI
28th Aug 2025431 AMAQI
28th Aug 2025382 AMAQI
28th Aug 2025383 AMAQI
28th Aug 2025394 AMAQI
28th Aug 2025405 AMAQI
22°C16/33°C
28th Aug 2025376 AMAQI
28th Aug 2025367 AMAQI
28th Aug 2025348 AMAQI
28th Aug 2025379 AMAQI
28th Aug 20253810 AMAQI
28th Aug 20253711 AMAQI
28th Aug 20254112 PMAQI
28th Aug 2025421 PMAQI
28th Aug 2025392 PMAQI
28th Aug 2025393 PMAQI
28th Aug 2025404 PMAQI
28th Aug 2025365 PMAQI
28th Aug 2025356 PMAQI
28th Aug 2025387 PMAQI
28th Aug 2025398 PMAQI
28th Aug 2025409 PMAQI
28th Aug 20253810 PMAQI
28th Aug 20253211 PMAQI
29th Aug 20253112 AMAQI
29th Aug 2025271 AMAQI
29th Aug 2025232 AMAQI
29th Aug 2025243 AMAQI
29th Aug 2025264 AMAQI
29th Aug 2025245 AMAQI
22°C15/34°C
29th Aug 2025246 AMAQI
29th Aug 2025227 AMAQI
29th Aug 2025228 AMAQI
29th Aug 2025229 AMAQI
29th Aug 20252710 AMAQI
29th Aug 20252711 AMAQI
29th Aug 20253012 PMAQI
29th Aug 2025301 PMAQI
29th Aug 2025312 PMAQI
29th Aug 2025333 PMAQI
29th Aug 2025344 PMAQI
29th Aug 2025355 PMAQI
29th Aug 2025366 PMAQI
29th Aug 2025297 PMAQI
29th Aug 2025318 PMAQI
29th Aug 2025329 PMAQI
29th Aug 20253010 PMAQI
29th Aug 20253211 PMAQI
30th Aug 20253012 AMAQI
30th Aug 2025301 AMAQI
30th Aug 2025302 AMAQI
30th Aug 2025323 AMAQI
30th Aug 2025344 AMAQI
30th Aug 2025315 AMAQI
22°C14/32°C
30th Aug 2025286 AMAQI
30th Aug 2025307 AMAQI
30th Aug 2025318 AMAQI
30th Aug 2025319 AMAQI
30th Aug 20253410 AMAQI
30th Aug 20253511 AMAQI
30th Aug 20253612 PMAQI
30th Aug 2025401 PMAQI
30th Aug 2025412 PMAQI
30th Aug 2025453 PMAQI
30th Aug 2025364 PMAQI
30th Aug 2025345 PMAQI
30th Aug 2025336 PMAQI
30th Aug 2025337 PMAQI
30th Aug 2025308 PMAQI
30th Aug 2025329 PMAQI
30th Aug 20253110 PMAQI
30th Aug 20253411 PMAQI
31st Aug 20254212 AMAQI
31st Aug 2025411 AMAQI
31st Aug 2025422 AMAQI
31st Aug 2025423 AMAQI
31st Aug 2025384 AMAQI
31st Aug 2025365 AMAQI
27°C16/40°C
31st Aug 2025346 AMAQI
31st Aug 2025337 AMAQI
31st Aug 2025418 AMAQI
31st Aug 2025429 AMAQI
31st Aug 20254410 AMAQI
31st Aug 20253811 AMAQI
31st Aug 20253512 PMAQI
31st Aug 2025361 PMAQI
31st Aug 2025372 PMAQI
31st Aug 2025363 PMAQI
31st Aug 2025324 PMAQI
31st Aug 2025255 PMAQI
31st Aug 2025246 PMAQI
31st Aug 2025357 PMAQI
31st Aug 2025328 PMAQI
31st Aug 2025229 PMAQI
31st Aug 20252210 PMAQI
31st Aug 20252411 PMAQI
1st Sep 20252512 AMAQI
1st Sep 2025291 AMAQI
1st Sep 2025302 AMAQI
1st Sep 2025313 AMAQI
1st Sep 2025354 AMAQI
1st Sep 2025365 AMAQI
28°C18/41°C
1st Sep 2025366 AMAQI
1st Sep 2025357 AMAQI
1st Sep 2025368 AMAQI
1st Sep 2025369 AMAQI
1st Sep 20253310 AMAQI
1st Sep 20253811 AMAQI
1st Sep 20254112 PMAQI
1st Sep 2025421 PMAQI
1st Sep 2025422 PMAQI
1st Sep 2025383 PMAQI
1st Sep 2025374 PMAQI
1st Sep 2025355 PMAQI
1st Sep 2025346 PMAQI
1st Sep 2025347 PMAQI
1st Sep 2025348 PMAQI
1st Sep 2025369 PMAQI
1st Sep 20253510 PMAQI
1st Sep 20253611 PMAQI
2nd Sep 20253712 AMAQI
2nd Sep 2025401 AMAQI
2nd Sep 2025382 AMAQI
2nd Sep 2025463 AMAQI
2nd Sep 2025434 AMAQI
2nd Sep 2025425 AMAQI
28°C18/40°C
2nd Sep 2025436 AMAQI
2nd Sep 2025417 AMAQI
2nd Sep 2025368 AMAQI
2nd Sep 2025429 AMAQI
2nd Sep 20254410 AMAQI
2nd Sep 20254911 AMAQI
2nd Sep 20255112 PMAQI
2nd Sep 2025511 PMAQI
2nd Sep 2025502 PMAQI
2nd Sep 2025523 PMAQI
2nd Sep 2025544 PMAQI
2nd Sep 2025505 PMAQI
2nd Sep 2025516 PMAQI
2nd Sep 2025467 PMAQI
2nd Sep 2025488 PMAQI
2nd Sep 2025509 PMAQI
2nd Sep 20254810 PMAQI
2nd Sep 20254111 PMAQI
3rd Sep 20254212 AMAQI
3rd Sep 2025411 AMAQI
3rd Sep 2025342 AMAQI
3rd Sep 2025323 AMAQI
3rd Sep 2025324 AMAQI
3rd Sep 2025305 AMAQI
25°C19/37°C
3rd Sep 2025306 AMAQI
3rd Sep 2025297 AMAQI
3rd Sep 2025288 AMAQI
3rd Sep 2025289 AMAQI
3rd Sep 20252810 AMAQI
3rd Sep 20253011 AMAQI
3rd Sep 20253312 PMAQI
3rd Sep 2025361 PMAQI
3rd Sep 2025362 PMAQI
3rd Sep 2025353 PMAQI
3rd Sep 2025374 PMAQI
3rd Sep 2025365 PMAQI
3rd Sep 2025376 PMAQI
3rd Sep 2025347 PMAQI
3rd Sep 2025338 PMAQI
3rd Sep 2025329 PMAQI
3rd Sep 20253010 PMAQI
3rd Sep 20252711 PMAQI
4th Sep 20252812 AMAQI
4th Sep 2025311 AMAQI
4th Sep 2025282 AMAQI
4th Sep 2025323 AMAQI
4th Sep 2025424 AMAQI
4th Sep 2025525 AMAQI
23°C16/35°C
4th Sep 2025626 AMAQI
4th Sep 2025547 AMAQI
4th Sep 2025428 AMAQI
4th Sep 2025449 AMAQI
4th Sep 20254210 AMAQI
4th Sep 20253611 AMAQI
4th Sep 20252312 PMAQI
4th Sep 2025271 PMAQI
4th Sep 2025292 PMAQI
4th Sep 2025333 PMAQI
4th Sep 2025384 PMAQI
4th Sep 2025365 PMAQI
4th Sep 2025426 PMAQI
4th Sep 2025247 PMAQI
4th Sep 2025308 PMAQI
4th Sep 2025329 PMAQI
4th Sep 20253210 PMAQI
4th Sep 20252411 PMAQI
5th Sep 20252312 AMAQI
5th Sep 2025201 AMAQI
5th Sep 2025192 AMAQI
5th Sep 2025183 AMAQI
5th Sep 2025164 AMAQI
5th Sep 2025185 AMAQI
20°C14/29°C
5th Sep 2025186 AMAQI
5th Sep 2025187 AMAQI
5th Sep 2025168 AMAQI
5th Sep 2025189 AMAQI
5th Sep 20252010 AMAQI
5th Sep 20252211 AMAQI
5th Sep 20252512 PMAQI
5th Sep 2025271 PMAQI
5th Sep 2025252 PMAQI
5th Sep 2025283 PMAQI
5th Sep 2025284 PMAQI
5th Sep 2025325 PMAQI
5th Sep 2025326 PMAQI
5th Sep 2025237 PMAQI
5th Sep 2025308 PMAQI
5th Sep 2025319 PMAQI
5th Sep 20252810 PMAQI
5th Sep 20252711 PMAQI
6th Sep 20252312 AMAQI
6th Sep 2025231 AMAQI
6th Sep 2025242 AMAQI
6th Sep 2025223 AMAQI
6th Sep 2025244 AMAQI
6th Sep 2025255 AMAQI
20°C15/28°C
6th Sep 2025246 AMAQI
6th Sep 2025237 AMAQI
6th Sep 2025258 AMAQI
6th Sep 2025289 AMAQI
6th Sep 20253410 AMAQI
6th Sep 20253511 AMAQI
6th Sep 20253812 PMAQI
6th Sep 2025381 PMAQI
6th Sep 2025402 PMAQI
6th Sep 2025403 PMAQI
6th Sep 2025414 PMAQI
6th Sep 2025415 PMAQI
6th Sep 2025386 PMAQI
6th Sep 2025347 PMAQI
6th Sep 2025348 PMAQI
6th Sep 2025379 PMAQI
6th Sep 20253810 PMAQI
6th Sep 20253811 PMAQI
7th Sep 20253612 AMAQI
7th Sep 2025321 AMAQI
7th Sep 2025322 AMAQI
7th Sep 2025283 AMAQI
7th Sep 2025294 AMAQI
7th Sep 2025315 AMAQI
20°C15/28°C
7th Sep 2025286 AMAQI
7th Sep 2025287 AMAQI
7th Sep 2025268 AMAQI
7th Sep 2025249 AMAQI
7th Sep 20252310 AMAQI
7th Sep 20252811 AMAQI
7th Sep 20252812 PMAQI
7th Sep 2025281 PMAQI
7th Sep 2025302 PMAQI
7th Sep 2025253 PMAQI
7th Sep 2025204 PMAQI
7th Sep 2025225 PMAQI
7th Sep 2025196 PMAQI
7th Sep 2025287 PMAQI
7th Sep 2025248 PMAQI
7th Sep 2025199 PMAQI
7th Sep 20251810 PMAQI
7th Sep 20252011 PMAQI
8th Sep 20252112 AMAQI
8th Sep 2025241 AMAQI
8th Sep 2025292 AMAQI
8th Sep 2025223 AMAQI
8th Sep 2025194 AMAQI
8th Sep 2025215 AMAQI
21°C16/31°C
8th Sep 2025196 AMAQI
8th Sep 2025207 AMAQI
8th Sep 2025208 AMAQI
8th Sep 2025219 AMAQI
8th Sep 20252010 AMAQI
8th Sep 20252111 AMAQI
8th Sep 20252012 PMAQI
8th Sep 2025221 PMAQI
8th Sep 2025222 PMAQI
8th Sep 2025203 PMAQI
8th Sep 2025204 PMAQI
8th Sep 2025215 PMAQI
8th Sep 2025226 PMAQI
8th Sep 2025197 PMAQI
8th Sep 2025218 PMAQI
8th Sep 2025209 PMAQI
8th Sep 20251810 PMAQI
8th Sep 20251611 PMAQI
9th Sep 20251612 AMAQI
9th Sep 2025161 AMAQI
9th Sep 2025172 AMAQI
9th Sep 2025183 AMAQI
9th Sep 2025174 AMAQI
9th Sep 2025185 AMAQI
21°C15/29°C
9th Sep 2025186 AMAQI
9th Sep 2025167 AMAQI
9th Sep 2025168 AMAQI
9th Sep 2025149 AMAQI
9th Sep 20251710 AMAQI
9th Sep 20251711 AMAQI
9th Sep 20252012 PMAQI
9th Sep 2025171 PMAQI
9th Sep 2025172 PMAQI
9th Sep 2025173 PMAQI
9th Sep 2025164 PMAQI
9th Sep 2025165 PMAQI
9th Sep 2025166 PMAQI
9th Sep 2025167 PMAQI
9th Sep 2025168 PMAQI
9th Sep 2025179 PMAQI
9th Sep 20251610 PMAQI
9th Sep 20251811 PMAQI
10th Sep 20251712 AMAQI
10th Sep 2025191 AMAQI
10th Sep 2025182 AMAQI
10th Sep 2025193 AMAQI
10th Sep 2025194 AMAQI
10th Sep 2025205 AMAQI
21°C18/28°C
10th Sep 2025176 AMAQI
10th Sep 2025147 AMAQI
10th Sep 2025168 AMAQI
10th Sep 2025189 AMAQI
10th Sep 20251610 AMAQI
10th Sep 20251811 AMAQI
10th Sep 20252012 PMAQI
10th Sep 2025171 PMAQI
10th Sep 2025172 PMAQI
10th Sep 2025173 PMAQI
10th Sep 2025164 PMAQI
10th Sep 2025165 PMAQI
10th Sep 2025166 PMAQI
10th Sep 2025187 PMAQI
10th Sep 2025188 PMAQI
10th Sep 2025189 PMAQI
10th Sep 20251910 PMAQI
10th Sep 20252111 PMAQI
11th Sep 20252312 AMAQI
11th Sep 2025261 AMAQI
11th Sep 2025302 AMAQI
11th Sep 2025303 AMAQI
11th Sep 2025314 AMAQI
11th Sep 2025325 AMAQI
21°C17/29°C
11th Sep 2025276 AMAQI
11th Sep 2025307 AMAQI
11th Sep 2025338 AMAQI
11th Sep 2025339 AMAQI
11th Sep 20252810 AMAQI
11th Sep 20252811 AMAQI
11th Sep 20253012 PMAQI
11th Sep 2025341 PMAQI
11th Sep 2025352 PMAQI
11th Sep 2025373 PMAQI
11th Sep 2025324 PMAQI
11th Sep 2025305 PMAQI
11th Sep 2025296 PMAQI
11th Sep 2025277 PMAQI
11th Sep 2025298 PMAQI
11th Sep 2025299 PMAQI
11th Sep 20252910 PMAQI
11th Sep 20253211 PMAQI
12th Sep 20253312 AMAQI
12th Sep 2025361 AMAQI
12th Sep 2025372 AMAQI
12th Sep 2025333 AMAQI
12th Sep 2025314 AMAQI
12th Sep 2025325 AMAQI
21°C16/28°C
12th Sep 2025316 AMAQI
12th Sep 2025317 AMAQI
12th Sep 2025298 AMAQI
12th Sep 2025309 AMAQI
12th Sep 20253110 AMAQI
12th Sep 20253311 AMAQI
12th Sep 20253712 PMAQI
12th Sep 2025381 PMAQI
12th Sep 2025382 PMAQI
12th Sep 2025383 PMAQI
12th Sep 2025364 PMAQI
12th Sep 2025385 PMAQI
12th Sep 2025366 PMAQI
12th Sep 2025347 PMAQI
12th Sep 2025358 PMAQI
12th Sep 2025379 PMAQI
12th Sep 20253810 PMAQI
12th Sep 20253911 PMAQI
13th Sep 20254112 AMAQI
13th Sep 2025411 AMAQI
13th Sep 2025422 AMAQI
13th Sep 2025393 AMAQI
13th Sep 2025404 AMAQI
13th Sep 2025395 AMAQI
21°C15/31°C
13th Sep 2025396 AMAQI
13th Sep 2025387 AMAQI
13th Sep 2025338 AMAQI
13th Sep 2025329 AMAQI
13th Sep 20253210 AMAQI
13th Sep 20253411 AMAQI
13th Sep 20253812 PMAQI
13th Sep 2025401 PMAQI
13th Sep 2025382 PMAQI
13th Sep 2025393 PMAQI
13th Sep 2025424 PMAQI
13th Sep 2025385 PMAQI
13th Sep 2025406 PMAQI
13th Sep 2025397 PMAQI
13th Sep 2025388 PMAQI
13th Sep 2025409 PMAQI
13th Sep 20253910 PMAQI
13th Sep 20253411 PMAQI
14th Sep 20253112 AMAQI
14th Sep 2025321 AMAQI
14th Sep 2025282 AMAQI
14th Sep 2025293 AMAQI
14th Sep 2025324 AMAQI
14th Sep 2025345 AMAQI
20°C15/29°C
14th Sep 2025316 AMAQI
14th Sep 2025347 AMAQI
14th Sep 2025228 AMAQI
14th Sep 2025219 AMAQI
14th Sep 20251810 AMAQI
14th Sep 20251711 AMAQI
14th Sep 20252312 PMAQI
14th Sep 2025211 PMAQI
14th Sep 2025192 PMAQI
14th Sep 2025203 PMAQI
14th Sep 2025184 PMAQI
14th Sep 2025225 PMAQI
14th Sep 2025216 PMAQI
14th Sep 2025277 PMAQI
14th Sep 2025268 PMAQI
14th Sep 2025249 PMAQI
14th Sep 20252310 PMAQI
14th Sep 20252111 PMAQI
15th Sep 20251812 AMAQI
15th Sep 2025191 AMAQI
15th Sep 2025202 AMAQI
15th Sep 2025203 AMAQI
15th Sep 2025184 AMAQI
15th Sep 2025265 AMAQI
21°C15/32°C
15th Sep 2025226 AMAQI
15th Sep 2025237 AMAQI
15th Sep 2025308 AMAQI
15th Sep 2025349 AMAQI
15th Sep 20252310 AMAQI
15th Sep 20252611 AMAQI
15th Sep 20252912 PMAQI
15th Sep 2025321 PMAQI
15th Sep 2025312 PMAQI
15th Sep 2025273 PMAQI
15th Sep 2025264 PMAQI
15th Sep 2025305 PMAQI
15th Sep 2025286 PMAQI
15th Sep 2025267 PMAQI
15th Sep 2025268 PMAQI
15th Sep 2025259 PMAQI
15th Sep 20252610 PMAQI
15th Sep 20253111 PMAQI
16th Sep 20253412 AMAQI
16th Sep 2025291 AMAQI
16th Sep 2025322 AMAQI
16th Sep 2025363 AMAQI
16th Sep 2025374 AMAQI
16th Sep 2025445 AMAQI
25°C14/36°C
16th Sep 2025376 AMAQI
6 AM12 PM
7 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
1 PM - 6 PM
33AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
8 AM - 9 AM
29AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 6 PM (Avg. 33), while the lowest AQI was between 8 AM to 9 AM (Avg. 29).
Night time
Avg. Highest Time
9 PM
32AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
2 AM - 4 AM
30AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 9 PM (Avg. 32), while the lowest AQI was between 2 AM to 4 AM (Avg. 30).
2025 Days Vs Air Quality
Rio Vista, California, United States
2025
93%
239
7%
19
Total number of days with different AQI categories in last 259 days in 2025 (106 days remaining)
Good
239 DaysModerate
19 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2025, 93% of 259 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
Rio 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
59AQI
59AQI
2nd January 2025
48AQI
48AQI
3rd January 2025
53AQI
53AQI
4th January 2025
33AQI
33AQI
5th January 2025
34AQI
34AQI
6th January 2025
46AQI
46AQI
7th January 2025
26AQI
26AQI
8th January 2025
31AQI
31AQI
9th January 2025
48AQI
48AQI
10th January 2025
66AQI
66AQI
11th January 2025
39AQI
39AQI
12th January 2025
26AQI
26AQI
13th January 2025
37AQI
37AQI
14th January 2025
44AQI
44AQI
15th January 2025
56AQI
56AQI
16th January 2025
57AQI
57AQI
17th January 2025
53AQI
53AQI
18th January 2025
49AQI
49AQI
19th January 2025
65AQI
65AQI
20th January 2025
37AQI
37AQI
21st January 2025
42AQI
42AQI
22nd January 2025
49AQI
49AQI
23rd January 2025
54AQI
54AQI
24th January 2025
59AQI
59AQI
25th January 2025
49AQI
49AQI
26th January 2025
34AQI
34AQI
27th January 2025
27AQI
27AQI
28th January 2025
48AQI
48AQI
29th January 2025
45AQI
45AQI
30th January 2025
47AQI
47AQI
31st January 2025
51AQI
51AQI
1st February 2025
52AQI
52AQI
2nd February 2025
26AQI
26AQI
3rd February 2025
22AQI
22AQI
4th February 2025
21AQI
21AQI
5th February 2025
26AQI
26AQI
6th February 2025
29AQI
29AQI
7th February 2025
25AQI
25AQI
8th February 2025
23AQI
23AQI
9th February 2025
28AQI
28AQI
10th February 2025
27AQI
27AQI
11th February 2025
31AQI
31AQI
12th February 2025
28AQI
28AQI
13th February 2025
28AQI
28AQI
14th February 2025
29AQI
29AQI
15th February 2025
26AQI
26AQI
16th February 2025
31AQI
31AQI
17th February 2025
23AQI
23AQI
18th February 2025
25AQI
25AQI
19th February 2025
26AQI
26AQI
20th February 2025
26AQI
26AQI
21st February 2025
25AQI
25AQI
22nd February 2025
40AQI
40AQI
23rd February 2025
25AQI
25AQI
24th February 2025
23AQI
23AQI
25th February 2025
22AQI
22AQI
26th February 2025
28AQI
28AQI
27th February 2025
40AQI
40AQI
28th February 2025
40AQI
40AQI
1st March 2025
36AQI
36AQI
2nd March 2025
27AQI
27AQI
3rd March 2025
23AQI
23AQI
4th March 2025
22AQI
22AQI
5th March 2025
25AQI
25AQI
6th March 2025
27AQI
27AQI
7th March 2025
29AQI
29AQI
8th March 2025
30AQI
30AQI
9th March 2025
37AQI
37AQI
10th March 2025
28AQI
28AQI
11th March 2025
31AQI
31AQI
12th March 2025
26AQI
26AQI
13th March 2025
20AQI
20AQI
14th March 2025
18AQI
18AQI
15th March 2025
42AQI
42AQI
16th March 2025
36AQI
36AQI
17th March 2025
16AQI
16AQI
18th March 2025
18AQI
18AQI
19th March 2025
20AQI
20AQI
20th March 2025
16AQI
16AQI
21st March 2025
19AQI
19AQI
22nd March 2025
19AQI
19AQI
23rd March 2025
21AQI
21AQI
24th March 2025
25AQI
25AQI
25th March 2025
33AQI
33AQI
26th March 2025
29AQI
29AQI
27th March 2025
23AQI
23AQI
28th March 2025
37AQI
37AQI
29th March 2025
28AQI
28AQI
30th March 2025
36AQI
36AQI
31st March 2025
31AQI
31AQI
1st April 2025
36AQI
36AQI
2nd April 2025
25AQI
25AQI
3rd April 2025
32AQI
32AQI
4th April 2025
32AQI
32AQI
5th April 2025
32AQI
32AQI
6th April 2025
31AQI
31AQI
7th April 2025
21AQI
21AQI
8th April 2025
29AQI
29AQI
9th April 2025
34AQI
34AQI
10th April 2025
37AQI
37AQI
11th April 2025
33AQI
33AQI
12th April 2025
44AQI
44AQI
13th April 2025
39AQI
39AQI
14th April 2025
37AQI
37AQI
15th April 2025
43AQI
43AQI
16th April 2025
36AQI
36AQI
17th April 2025
31AQI
31AQI
18th April 2025
38AQI
38AQI
19th April 2025
44AQI
44AQI
20th April 2025
43AQI
43AQI
21st April 2025
44AQI
44AQI
22nd April 2025
46AQI
46AQI
23rd April 2025
51AQI
51AQI
24th April 2025
50AQI
50AQI
25th April 2025
32AQI
32AQI
26th April 2025
31AQI
31AQI
27th April 2025
38AQI
38AQI
28th April 2025
39AQI
39AQI
29th April 2025
49AQI
49AQI
30th April 2025
45AQI
45AQI
1st May 2025
44AQI
44AQI
2nd May 2025
33AQI
33AQI
3rd May 2025
25AQI
25AQI
4th May 2025
32AQI
32AQI
5th May 2025
29AQI
29AQI
6th May 2025
39AQI
39AQI
7th May 2025
53AQI
53AQI
8th May 2025
45AQI
45AQI
9th May 2025
39AQI
39AQI
10th May 2025
38AQI
38AQI
11th May 2025
33AQI
33AQI
12th May 2025
31AQI
31AQI
13th May 2025
29AQI
29AQI
14th May 2025
34AQI
34AQI
15th May 2025
38AQI
38AQI
16th May 2025
47AQI
47AQI
17th May 2025
39AQI
39AQI
18th May 2025
36AQI
36AQI
19th May 2025
36AQI
36AQI
20th May 2025
28AQI
28AQI
21st May 2025
38AQI
38AQI
22nd May 2025
44AQI
44AQI
23rd May 2025
32AQI
32AQI
24th May 2025
41AQI
41AQI
25th May 2025
33AQI
33AQI
26th May 2025
26AQI
26AQI
27th May 2025
34AQI
34AQI
28th May 2025
34AQI
34AQI
29th May 2025
29AQI
29AQI
30th May 2025
37AQI
37AQI
31st May 2025
44AQI
44AQI
1st June 2025
51AQI
51AQI
2nd June 2025
53AQI
53AQI
3rd June 2025
45AQI
45AQI
4th June 2025
52AQI
52AQI
5th June 2025
44AQI
44AQI
6th June 2025
30AQI
30AQI
7th June 2025
36AQI
36AQI
8th June 2025
32AQI
32AQI
9th June 2025
30AQI
30AQI
10th June 2025
32AQI
32AQI
11th June 2025
49AQI
49AQI
12th June 2025
52AQI
52AQI
13th June 2025
52AQI
52AQI
14th June 2025
48AQI
48AQI
15th June 2025
48AQI
48AQI
16th June 2025
46AQI
46AQI
17th June 2025
39AQI
39AQI
18th June 2025
38AQI
38AQI
19th June 2025
43AQI
43AQI
20th June 2025
44AQI
44AQI
21st June 2025
42AQI
42AQI
22nd June 2025
41AQI
41AQI
23rd June 2025
39AQI
39AQI
24th June 2025
35AQI
35AQI
25th June 2025
30AQI
30AQI
26th June 2025
33AQI
33AQI
27th June 2025
36AQI
36AQI
28th June 2025
39AQI
39AQI
29th June 2025
37AQI
37AQI
30th June 2025
30AQI
30AQI
1st July 2025
30AQI
30AQI
2nd July 2025
31AQI
31AQI
3rd July 2025
41AQI
41AQI
4th July 2025
38AQI
38AQI
5th July 2025
40AQI
40AQI
6th July 2025
40AQI
40AQI
7th July 2025
31AQI
31AQI
8th July 2025
27AQI
27AQI
9th July 2025
25AQI
25AQI
10th July 2025
31AQI
31AQI
11th July 2025
43AQI
43AQI
12th July 2025
44AQI
44AQI
13th July 2025
36AQI
36AQI
14th July 2025
28AQI
28AQI
15th July 2025
28AQI
28AQI
16th July 2025
29AQI
29AQI
17th July 2025
27AQI
27AQI
18th July 2025
27AQI
27AQI
19th July 2025
28AQI
28AQI
20th July 2025
27AQI
27AQI
21st July 2025
30AQI
30AQI
22nd July 2025
21AQI
21AQI
23rd July 2025
22AQI
22AQI
24th July 2025
22AQI
22AQI
25th July 2025
21AQI
21AQI
26th July 2025
21AQI
21AQI
27th July 2025
22AQI
22AQI
28th July 2025
25AQI
25AQI
29th July 2025
30AQI
30AQI
30th July 2025
32AQI
32AQI
31st July 2025
28AQI
28AQI
1st August 2025
27AQI
27AQI
2nd August 2025
26AQI
26AQI
3rd August 2025
37AQI
37AQI
4th August 2025
37AQI
37AQI
5th August 2025
33AQI
33AQI
6th August 2025
38AQI
38AQI
7th August 2025
36AQI
36AQI
8th August 2025
39AQI
39AQI
9th August 2025
38AQI
38AQI
10th August 2025
31AQI
31AQI
11th August 2025
31AQI
31AQI
12th August 2025
30AQI
30AQI
13th August 2025
27AQI
27AQI
14th August 2025
21AQI
21AQI
15th August 2025
41AQI
41AQI
16th August 2025
18AQI
18AQI
17th August 2025
16AQI
16AQI
18th August 2025
18AQI
18AQI
19th August 2025
22AQI
22AQI
20th August 2025
30AQI
30AQI
21st August 2025
42AQI
42AQI
22nd August 2025
52AQI
52AQI
23rd August 2025
37AQI
37AQI
24th August 2025
29AQI
29AQI
25th August 2025
30AQI
30AQI
26th August 2025
38AQI
38AQI
27th August 2025
43AQI
43AQI
28th August 2025
39AQI
39AQI
29th August 2025
28AQI
28AQI
30th August 2025
33AQI
33AQI
31st August 2025
34AQI
34AQI
1st September 2025
35AQI
35AQI
2nd September 2025
46AQI
46AQI
3rd September 2025
33AQI
33AQI
4th September 2025
37AQI
37AQI
5th September 2025
24AQI
24AQI
6th September 2025
32AQI
32AQI
7th September 2025
26AQI
26AQI
8th September 2025
21AQI
21AQI
9th September 2025
17AQI
17AQI
10th September 2025
18AQI
18AQI
11th September 2025
30AQI
30AQI
12th September 2025
35AQI
35AQI
13th September 2025
38AQI
38AQI
14th September 2025
25AQI
25AQI
15th September 2025
24AQI
24AQI
16th September 2025
17th September 2025
18th September 2025
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
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
46AQI
28AQI
27AQI
37AQI
36AQI
41AQI
30AQI
32AQI
29AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202534AQI
21
10
27
1
31
29
1
30
1
25
5
31
30
1
15
239
19
Highest AQI recorded in
January46AQI
Lowest AQI recorded in
March27AQI
202436AQI
26
5
28
31
29
31
19
10
28
3
27
4
28
1
27
4
26
4
16
15
316
46
Highest AQI recorded in
December52AQI
Lowest AQI recorded in
March26AQI
202344AQI
24
4
19
9
31
26
1
18
5
24
6
21
10
16
14
1
21
7
2
25
6
16
12
20
11
261
85
3
Highest AQI recorded in
August51AQI
Lowest AQI recorded in
March34AQI
202239AQI
11
19
15
7
31
23
1
31
30
16
5
1
1
17
12
20
11
21
9
17
13
1
233
78
1
Highest AQI recorded in
August57AQI
Lowest AQI recorded in
March24AQI
202135AQI
21
9
26
2
27
29
1
31
30
31
17
11
3
22
8
25
3
21
9
18
13
298
56
3
Highest AQI recorded in
August51AQI
Lowest AQI recorded in
June24AQI
202037AQI
13
15
18
30
26
19
4
8
9
13
4
3
1
19
9
2
1
24
6
16
15
189
47
14
4
1
Highest AQI recorded in
September80AQI
Lowest AQI recorded in
April0AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
44AQILeast Polluted Year Recorded
2025(Avg.)
34AQIRio Vista's annual 2025 AQI (34) shows an average percentage change of -9.7% (improved AQI) compared to previous years: 2020 (37), 2021 (35), 2022 (39), 2023 (44), 2024 (36).
