Fortuna, 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
Fortuna, California, United States
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
17th Aug 2023
78AQILowest AQI recorded on
10th Aug 2023
20AQISame Day Analysis (9th August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 25 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 9th Aug - 10th Aug 2025
Fortuna, California, United States
AQI
Day
Night
.
6 AM9th Aug 2025
8 PM
5 AM10th Aug 2025
Day time
Avg. Highest Time
3PM9th Aug
26AQI
Avg. Lowest Time
7AM9th Aug
20AQI
Night time
Avg. Highest Time
4AM10th Aug
32AQI
Avg. Lowest Time
10PM9th Aug
23AQI
In the last 24 hours,
Fortuna's AQI reached its highest point of 32 at 4 AM during the Night, while the lowest point, 20, was recorded at 7 AM during the Day between 9th Aug and 10th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Fortuna, 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 2025546 AMAQI
11th Jul 2025547 AMAQI
11th Jul 2025508 AMAQI
11th Jul 2025559 AMAQI
11th Jul 20255510 AMAQI
11th Jul 20255411 AMAQI
11th Jul 20255412 PMAQI
11th Jul 2025501 PMAQI
11th Jul 2025502 PMAQI
11th Jul 2025533 PMAQI
11th Jul 2025474 PMAQI
11th Jul 2025495 PMAQI
11th Jul 2025516 PMAQI
11th Jul 2025507 PMAQI
11th Jul 2025478 PMAQI
11th Jul 2025449 PMAQI
11th Jul 20254410 PMAQI
11th Jul 20254811 PMAQI
12th Jul 20255212 AMAQI
12th Jul 2025541 AMAQI
12th Jul 2025512 AMAQI
12th Jul 2025533 AMAQI
12th Jul 2025554 AMAQI
12th Jul 2025555 AMAQI
24°C17/32°C
12th Jul 2025496 AMAQI
12th Jul 2025537 AMAQI
12th Jul 2025508 AMAQI
12th Jul 2025489 AMAQI
12th Jul 20255410 AMAQI
12th Jul 20255211 AMAQI
12th Jul 20255212 PMAQI
12th Jul 2025521 PMAQI
12th Jul 2025532 PMAQI
12th Jul 2025513 PMAQI
12th Jul 2025464 PMAQI
12th Jul 2025445 PMAQI
12th Jul 2025446 PMAQI
12th Jul 2025487 PMAQI
12th Jul 2025528 PMAQI
12th Jul 2025519 PMAQI
12th Jul 20255010 PMAQI
12th Jul 20255011 PMAQI
13th Jul 20254712 AMAQI
13th Jul 2025461 AMAQI
13th Jul 2025462 AMAQI
13th Jul 2025443 AMAQI
13th Jul 2025294 AMAQI
13th Jul 2025325 AMAQI
23°C19/30°C
13th Jul 2025316 AMAQI
13th Jul 2025337 AMAQI
13th Jul 2025348 AMAQI
13th Jul 2025369 AMAQI
13th Jul 20254110 AMAQI
13th Jul 20253411 AMAQI
13th Jul 20253412 PMAQI
13th Jul 2025371 PMAQI
13th Jul 2025382 PMAQI
13th Jul 2025413 PMAQI
13th Jul 2025384 PMAQI
13th Jul 2025385 PMAQI
13th Jul 2025446 PMAQI
13th Jul 2025357 PMAQI
13th Jul 2025348 PMAQI
13th Jul 2025459 PMAQI
13th Jul 20254710 PMAQI
13th Jul 20253311 PMAQI
14th Jul 20253712 AMAQI
14th Jul 2025361 AMAQI
14th Jul 2025402 AMAQI
14th Jul 2025423 AMAQI
14th Jul 2025484 AMAQI
14th Jul 2025505 AMAQI
21°C16/26°C
14th Jul 2025526 AMAQI
14th Jul 2025417 AMAQI
14th Jul 2025428 AMAQI
14th Jul 2025409 AMAQI
14th Jul 20254210 AMAQI
14th Jul 20255011 AMAQI
14th Jul 20255412 PMAQI
14th Jul 2025531 PMAQI
14th Jul 2025352 PMAQI
14th Jul 2025313 PMAQI
14th Jul 2025304 PMAQI
14th Jul 2025285 PMAQI
14th Jul 2025246 PMAQI
14th Jul 2025387 PMAQI
14th Jul 2025418 PMAQI
14th Jul 2025409 PMAQI
14th Jul 20254310 PMAQI
14th Jul 20254611 PMAQI
15th Jul 20254712 AMAQI
15th Jul 2025471 AMAQI
15th Jul 2025472 AMAQI
15th Jul 2025533 AMAQI
15th Jul 2025524 AMAQI
15th Jul 2025475 AMAQI
22°C16/27°C
15th Jul 2025466 AMAQI
15th Jul 2025497 AMAQI
15th Jul 2025498 AMAQI
15th Jul 2025489 AMAQI
15th Jul 20254710 AMAQI
15th Jul 20254311 AMAQI
15th Jul 20254512 PMAQI
15th Jul 2025451 PMAQI
15th Jul 2025392 PMAQI
15th Jul 2025463 PMAQI
15th Jul 2025474 PMAQI
15th Jul 2025495 PMAQI
15th Jul 2025426 PMAQI
15th Jul 2025467 PMAQI
15th Jul 2025448 PMAQI
15th Jul 2025389 PMAQI
15th Jul 20253810 PMAQI
15th Jul 20254311 PMAQI
16th Jul 20253912 AMAQI
16th Jul 2025421 AMAQI
16th Jul 2025422 AMAQI
16th Jul 2025403 AMAQI
16th Jul 2025354 AMAQI
16th Jul 2025325 AMAQI
21°C16/27°C
16th Jul 2025396 AMAQI
16th Jul 2025417 AMAQI
16th Jul 2025398 AMAQI
16th Jul 2025369 AMAQI
16th Jul 20253310 AMAQI
16th Jul 20253211 AMAQI
16th Jul 20253612 PMAQI
16th Jul 2025401 PMAQI
16th Jul 2025402 PMAQI
16th Jul 2025433 PMAQI
16th Jul 2025384 PMAQI
16th Jul 2025415 PMAQI
16th Jul 2025406 PMAQI
16th Jul 2025367 PMAQI
16th Jul 2025388 PMAQI
16th Jul 2025409 PMAQI
16th Jul 20253810 PMAQI
16th Jul 20253311 PMAQI
17th Jul 20253212 AMAQI
17th Jul 2025321 AMAQI
17th Jul 2025312 AMAQI
17th Jul 2025353 AMAQI
17th Jul 2025344 AMAQI
17th Jul 2025335 AMAQI
17°C13/22°C
17th Jul 2025326 AMAQI
17th Jul 2025297 AMAQI
17th Jul 2025308 AMAQI
17th Jul 2025289 AMAQI
17th Jul 20252610 AMAQI
17th Jul 20252811 AMAQI
17th Jul 20253612 PMAQI
17th Jul 2025361 PMAQI
17th Jul 2025442 PMAQI
17th Jul 2025403 PMAQI
17th Jul 2025414 PMAQI
17th Jul 2025405 PMAQI
17th Jul 2025396 PMAQI
17th Jul 2025347 PMAQI
17th Jul 2025348 PMAQI
17th Jul 2025319 PMAQI
17th Jul 20253210 PMAQI
17th Jul 20253111 PMAQI
18th Jul 20253112 AMAQI
18th Jul 2025281 AMAQI
18th Jul 2025302 AMAQI
18th Jul 2025293 AMAQI
18th Jul 2025204 AMAQI
18th Jul 2025225 AMAQI
18°C13/23°C
18th Jul 2025216 AMAQI
18th Jul 2025207 AMAQI
18th Jul 2025218 AMAQI
18th Jul 2025219 AMAQI
18th Jul 20252010 AMAQI
18th Jul 20252411 AMAQI
18th Jul 20252512 PMAQI
18th Jul 2025281 PMAQI
18th Jul 2025302 PMAQI
18th Jul 2025323 PMAQI
18th Jul 2025354 PMAQI
18th Jul 2025355 PMAQI
18th Jul 2025346 PMAQI
18th Jul 2025277 PMAQI
18th Jul 2025268 PMAQI
18th Jul 2025369 PMAQI
18th Jul 20253410 PMAQI
18th Jul 20253611 PMAQI
19th Jul 20253412 AMAQI
19th Jul 2025321 AMAQI
19th Jul 2025312 AMAQI
19th Jul 2025303 AMAQI
19th Jul 2025334 AMAQI
19th Jul 2025365 AMAQI
19°C14/25°C
19th Jul 2025336 AMAQI
19th Jul 2025347 AMAQI
19th Jul 2025308 AMAQI
19th Jul 2025299 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20252611 AMAQI
19th Jul 20253712 PMAQI
19th Jul 2025371 PMAQI
19th Jul 2025352 PMAQI
19th Jul 2025383 PMAQI
19th Jul 2025404 PMAQI
19th Jul 2025405 PMAQI
19th Jul 2025386 PMAQI
19th Jul 2025367 PMAQI
19th Jul 2025318 PMAQI
19th Jul 2025289 PMAQI
19th Jul 20252910 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253112 AMAQI
20th Jul 2025311 AMAQI
20th Jul 2025292 AMAQI
20th Jul 2025293 AMAQI
20th Jul 2025224 AMAQI
20th Jul 2025235 AMAQI
20°C14/28°C
20th Jul 2025226 AMAQI
20th Jul 2025227 AMAQI
20th Jul 2025248 AMAQI
20th Jul 2025229 AMAQI
20th Jul 20252110 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252712 PMAQI
20th Jul 2025271 PMAQI
20th Jul 2025302 PMAQI
20th Jul 2025303 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025325 PMAQI
20th Jul 2025326 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025258 PMAQI
20th Jul 2025279 PMAQI
20th Jul 20252510 PMAQI
20th Jul 20252611 PMAQI
21st Jul 20252712 AMAQI
21st Jul 2025301 AMAQI
21st Jul 2025322 AMAQI
21st Jul 2025293 AMAQI
21st Jul 2025364 AMAQI
21st Jul 2025345 AMAQI
20°C14/28°C
21st Jul 2025326 AMAQI
21st Jul 2025317 AMAQI
21st Jul 2025318 AMAQI
21st Jul 2025309 AMAQI
21st Jul 20253210 AMAQI
21st Jul 20253411 AMAQI
21st Jul 20253212 PMAQI
21st Jul 2025361 PMAQI
21st Jul 2025332 PMAQI
21st Jul 2025343 PMAQI
21st Jul 2025334 PMAQI
21st Jul 2025365 PMAQI
21st Jul 2025356 PMAQI
21st Jul 2025327 PMAQI
21st Jul 2025308 PMAQI
21st Jul 2025289 PMAQI
21st Jul 20253010 PMAQI
21st Jul 20253211 PMAQI
22nd Jul 20253012 AMAQI
22nd Jul 2025301 AMAQI
22nd Jul 2025322 AMAQI
22nd Jul 2025303 AMAQI
22nd Jul 2025264 AMAQI
22nd Jul 2025275 AMAQI
16°C13/20°C
22nd Jul 2025276 AMAQI
22nd Jul 2025307 AMAQI
22nd Jul 2025288 AMAQI
22nd Jul 2025249 AMAQI
22nd Jul 20252410 AMAQI
22nd Jul 20252311 AMAQI
22nd Jul 20252612 PMAQI
22nd Jul 2025251 PMAQI
22nd Jul 2025282 PMAQI
22nd Jul 2025323 PMAQI
22nd Jul 2025314 PMAQI
22nd Jul 2025355 PMAQI
22nd Jul 2025326 PMAQI
22nd Jul 2025267 PMAQI
22nd Jul 2025258 PMAQI
22nd Jul 2025229 PMAQI
22nd Jul 20252010 PMAQI
22nd Jul 20252011 PMAQI
23rd Jul 20252312 AMAQI
23rd Jul 2025261 AMAQI
23rd Jul 2025342 AMAQI
23rd Jul 2025363 AMAQI
23rd Jul 2025344 AMAQI
23rd Jul 2025345 AMAQI
17°C13/22°C
23rd Jul 2025286 AMAQI
23rd Jul 2025207 AMAQI
23rd Jul 2025208 AMAQI
23rd Jul 2025219 AMAQI
23rd Jul 20253010 AMAQI
23rd Jul 20252711 AMAQI
23rd Jul 20252812 PMAQI
23rd Jul 2025321 PMAQI
23rd Jul 2025302 PMAQI
23rd Jul 2025343 PMAQI
23rd Jul 2025304 PMAQI
23rd Jul 2025245 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025247 PMAQI
23rd Jul 2025248 PMAQI
23rd Jul 2025269 PMAQI
23rd Jul 20252610 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252212 AMAQI
24th Jul 2025221 AMAQI
24th Jul 2025252 AMAQI
24th Jul 2025263 AMAQI
24th Jul 2025264 AMAQI
24th Jul 2025265 AMAQI
17°C13/21°C
24th Jul 2025226 AMAQI
24th Jul 2025237 AMAQI
24th Jul 2025208 AMAQI
24th Jul 2025209 AMAQI
24th Jul 20252410 AMAQI
24th Jul 20252611 AMAQI
24th Jul 20253012 PMAQI
24th Jul 2025271 PMAQI
24th Jul 2025262 PMAQI
24th Jul 2025263 PMAQI
24th Jul 2025264 PMAQI
24th Jul 2025265 PMAQI
24th Jul 2025266 PMAQI
24th Jul 2025237 PMAQI
24th Jul 2025218 PMAQI
24th Jul 2025219 PMAQI
24th Jul 20251910 PMAQI
24th Jul 20251911 PMAQI
25th Jul 20252012 AMAQI
25th Jul 2025201 AMAQI
25th Jul 2025182 AMAQI
25th Jul 2025193 AMAQI
25th Jul 2025184 AMAQI
25th Jul 2025185 AMAQI
17°C13/22°C
25th Jul 2025196 AMAQI
25th Jul 2025197 AMAQI
25th Jul 2025188 AMAQI
25th Jul 2025209 AMAQI
25th Jul 20252010 AMAQI
25th Jul 20252011 AMAQI
25th Jul 20252712 PMAQI
25th Jul 2025281 PMAQI
25th Jul 2025262 PMAQI
25th Jul 2025243 PMAQI
25th Jul 2025234 PMAQI
25th Jul 2025235 PMAQI
25th Jul 2025226 PMAQI
25th Jul 2025197 PMAQI
25th Jul 2025208 PMAQI
25th Jul 2025249 PMAQI
25th Jul 20251910 PMAQI
25th Jul 20251811 PMAQI
26th Jul 20252012 AMAQI
26th Jul 2025191 AMAQI
26th Jul 2025182 AMAQI
26th Jul 2025213 AMAQI
26th Jul 2025204 AMAQI
26th Jul 2025215 AMAQI
18°C14/24°C
26th Jul 2025166 AMAQI
26th Jul 2025177 AMAQI
26th Jul 2025188 AMAQI
26th Jul 2025179 AMAQI
26th Jul 20251710 AMAQI
26th Jul 20251811 AMAQI
26th Jul 20251712 PMAQI
26th Jul 2025211 PMAQI
26th Jul 2025222 PMAQI
26th Jul 2025233 PMAQI
26th Jul 2025254 PMAQI
26th Jul 2025265 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025217 PMAQI
26th Jul 2025188 PMAQI
26th Jul 2025189 PMAQI
26th Jul 20251810 PMAQI
26th Jul 20251711 PMAQI
27th Jul 20251712 AMAQI
27th Jul 2025181 AMAQI
27th Jul 2025192 AMAQI
27th Jul 2025193 AMAQI
27th Jul 2025234 AMAQI
27th Jul 2025245 AMAQI
18°C13/24°C
27th Jul 2025306 AMAQI
27th Jul 2025217 AMAQI
27th Jul 2025198 AMAQI
27th Jul 2025189 AMAQI
27th Jul 20251810 AMAQI
27th Jul 20252011 AMAQI
27th Jul 20252012 PMAQI
27th Jul 2025181 PMAQI
27th Jul 2025192 PMAQI
27th Jul 2025193 PMAQI
27th Jul 2025204 PMAQI
27th Jul 2025225 PMAQI
27th Jul 2025206 PMAQI
27th Jul 2025207 PMAQI
27th Jul 2025198 PMAQI
27th Jul 2025189 PMAQI
27th Jul 20251810 PMAQI
27th Jul 20251711 PMAQI
28th Jul 20251712 AMAQI
28th Jul 2025221 AMAQI
28th Jul 2025222 AMAQI
28th Jul 2025223 AMAQI
28th Jul 2025264 AMAQI
28th Jul 2025205 AMAQI
18°C13/24°C
28th Jul 2025186 AMAQI
28th Jul 2025207 AMAQI
28th Jul 2025208 AMAQI
28th Jul 2025209 AMAQI
28th Jul 20251810 AMAQI
28th Jul 20252011 AMAQI
28th Jul 20252612 PMAQI
28th Jul 2025321 PMAQI
28th Jul 2025342 PMAQI
28th Jul 2025273 PMAQI
28th Jul 2025254 PMAQI
28th Jul 2025235 PMAQI
28th Jul 2025226 PMAQI
28th Jul 2025237 PMAQI
28th Jul 2025248 PMAQI
28th Jul 2025249 PMAQI
28th Jul 20252310 PMAQI
28th Jul 20252311 PMAQI
29th Jul 20252212 AMAQI
29th Jul 2025271 AMAQI
29th Jul 2025212 AMAQI
29th Jul 2025223 AMAQI
29th Jul 2025254 AMAQI
29th Jul 2025265 AMAQI
20°C14/27°C
29th Jul 2025246 AMAQI
29th Jul 2025247 AMAQI
29th Jul 2025228 AMAQI
29th Jul 2025229 AMAQI
29th Jul 20252410 AMAQI
29th Jul 20252311 AMAQI
29th Jul 20253812 PMAQI
29th Jul 2025331 PMAQI
29th Jul 2025282 PMAQI
29th Jul 2025253 PMAQI
29th Jul 2025254 PMAQI
29th Jul 2025255 PMAQI
29th Jul 2025266 PMAQI
29th Jul 2025267 PMAQI
29th Jul 2025278 PMAQI
29th Jul 2025249 PMAQI
29th Jul 20252410 PMAQI
29th Jul 20252611 PMAQI
30th Jul 20252712 AMAQI
30th Jul 2025271 AMAQI
30th Jul 2025302 AMAQI
30th Jul 2025303 AMAQI
30th Jul 2025304 AMAQI
30th Jul 2025345 AMAQI
20°C15/28°C
30th Jul 2025326 AMAQI
30th Jul 2025327 AMAQI
30th Jul 2025298 AMAQI
30th Jul 2025349 AMAQI
30th Jul 20252910 AMAQI
30th Jul 20253211 AMAQI
30th Jul 20253612 PMAQI
30th Jul 2025311 PMAQI
30th Jul 2025262 PMAQI
30th Jul 2025273 PMAQI
30th Jul 2025274 PMAQI
30th Jul 2025275 PMAQI
30th Jul 2025276 PMAQI
30th Jul 2025277 PMAQI
30th Jul 2025278 PMAQI
30th Jul 2025269 PMAQI
30th Jul 20252610 PMAQI
30th Jul 20252411 PMAQI
31st Jul 20252312 AMAQI
31st Jul 2025261 AMAQI
31st Jul 2025232 AMAQI
31st Jul 2025253 AMAQI
31st Jul 2025264 AMAQI
31st Jul 2025255 AMAQI
19°C14/27°C
31st Jul 2025236 AMAQI
31st Jul 2025247 AMAQI
31st Jul 2025228 AMAQI
31st Jul 2025249 AMAQI
31st Jul 20252710 AMAQI
31st Jul 20252611 AMAQI
31st Jul 20252612 PMAQI
31st Jul 2025291 PMAQI
31st Jul 2025322 PMAQI
31st Jul 2025293 PMAQI
31st Jul 2025284 PMAQI
31st Jul 2025265 PMAQI
31st Jul 2025226 PMAQI
31st Jul 2025247 PMAQI
31st Jul 2025268 PMAQI
31st Jul 2025229 PMAQI
31st Jul 20252010 PMAQI
31st Jul 20252411 PMAQI
1st Aug 20252612 AMAQI
1st Aug 2025261 AMAQI
1st Aug 2025242 AMAQI
1st Aug 2025223 AMAQI
1st Aug 2025224 AMAQI
1st Aug 2025235 AMAQI
19°C15/27°C
1st Aug 2025206 AMAQI
1st Aug 2025207 AMAQI
1st Aug 2025238 AMAQI
1st Aug 2025249 AMAQI
1st Aug 20252410 AMAQI
1st Aug 20252411 AMAQI
1st Aug 20252212 PMAQI
1st Aug 2025261 PMAQI
1st Aug 2025262 PMAQI
1st Aug 2025263 PMAQI
1st Aug 2025294 PMAQI
1st Aug 2025325 PMAQI
1st Aug 2025276 PMAQI
1st Aug 2025227 PMAQI
1st Aug 2025228 PMAQI
1st Aug 2025259 PMAQI
1st Aug 20252310 PMAQI
1st Aug 20252611 PMAQI
2nd Aug 20252412 AMAQI
2nd Aug 2025231 AMAQI
2nd Aug 2025232 AMAQI
2nd Aug 2025253 AMAQI
2nd Aug 2025254 AMAQI
2nd Aug 2025225 AMAQI
19°C15/27°C
2nd Aug 2025186 AMAQI
2nd Aug 2025187 AMAQI
2nd Aug 2025188 AMAQI
2nd Aug 2025209 AMAQI
2nd Aug 20252110 AMAQI
2nd Aug 20252211 AMAQI
2nd Aug 20252112 PMAQI
2nd Aug 2025201 PMAQI
2nd Aug 2025222 PMAQI
2nd Aug 2025243 PMAQI
2nd Aug 2025234 PMAQI
2nd Aug 2025245 PMAQI
2nd Aug 2025226 PMAQI
2nd Aug 2025227 PMAQI
2nd Aug 2025238 PMAQI
2nd Aug 2025239 PMAQI
2nd Aug 20252410 PMAQI
2nd Aug 20252411 PMAQI
3rd Aug 20252412 AMAQI
3rd Aug 2025251 AMAQI
3rd Aug 2025272 AMAQI
3rd Aug 2025293 AMAQI
3rd Aug 2025264 AMAQI
3rd Aug 2025255 AMAQI
18°C14/26°C
3rd Aug 2025246 AMAQI
3rd Aug 2025237 AMAQI
3rd Aug 2025238 AMAQI
3rd Aug 2025219 AMAQI
3rd Aug 20252110 AMAQI
3rd Aug 20252011 AMAQI
3rd Aug 20251812 PMAQI
3rd Aug 2025191 PMAQI
3rd Aug 2025272 PMAQI
3rd Aug 2025323 PMAQI
3rd Aug 2025344 PMAQI
3rd Aug 2025325 PMAQI
3rd Aug 2025276 PMAQI
3rd Aug 2025287 PMAQI
3rd Aug 2025298 PMAQI
3rd Aug 2025289 PMAQI
3rd Aug 20253310 PMAQI
3rd Aug 20252611 PMAQI
4th Aug 20252712 AMAQI
4th Aug 2025241 AMAQI
4th Aug 2025232 AMAQI
4th Aug 2025233 AMAQI
4th Aug 2025284 AMAQI
4th Aug 2025275 AMAQI
16°C12/24°C
4th Aug 2025286 AMAQI
4th Aug 2025267 AMAQI
4th Aug 2025258 AMAQI
4th Aug 2025299 AMAQI
4th Aug 20252710 AMAQI
4th Aug 20253011 AMAQI
4th Aug 20253412 PMAQI
4th Aug 2025321 PMAQI
4th Aug 2025302 PMAQI
4th Aug 2025303 PMAQI
4th Aug 2025324 PMAQI
4th Aug 2025335 PMAQI
4th Aug 2025346 PMAQI
4th Aug 2025307 PMAQI
4th Aug 2025288 PMAQI
4th Aug 2025289 PMAQI
4th Aug 20253210 PMAQI
4th Aug 20252611 PMAQI
5th Aug 20252612 AMAQI
5th Aug 2025261 AMAQI
5th Aug 2025262 AMAQI
5th Aug 2025243 AMAQI
5th Aug 2025264 AMAQI
5th Aug 2025265 AMAQI
17°C11/24°C
5th Aug 2025246 AMAQI
5th Aug 2025267 AMAQI
5th Aug 2025268 AMAQI
5th Aug 2025249 AMAQI
5th Aug 20252410 AMAQI
5th Aug 20252811 AMAQI
5th Aug 20253212 PMAQI
5th Aug 2025321 PMAQI
5th Aug 2025302 PMAQI
5th Aug 2025323 PMAQI
5th Aug 2025344 PMAQI
5th Aug 2025305 PMAQI
5th Aug 2025276 PMAQI
5th Aug 2025287 PMAQI
5th Aug 2025258 PMAQI
5th Aug 2025229 PMAQI
5th Aug 20252410 PMAQI
5th Aug 20252311 PMAQI
6th Aug 20252412 AMAQI
6th Aug 2025261 AMAQI
6th Aug 2025292 AMAQI
6th Aug 2025273 AMAQI
6th Aug 2025284 AMAQI
6th Aug 2025305 AMAQI
19°C12/26°C
6th Aug 2025286 AMAQI
6th Aug 2025307 AMAQI
6th Aug 2025328 AMAQI
6th Aug 2025319 AMAQI
6th Aug 20253010 AMAQI
6th Aug 20253211 AMAQI
6th Aug 20253512 PMAQI
6th Aug 2025461 PMAQI
6th Aug 2025342 PMAQI
6th Aug 2025323 PMAQI
6th Aug 2025314 PMAQI
6th Aug 2025285 PMAQI
6th Aug 2025226 PMAQI
6th Aug 2025277 PMAQI
6th Aug 2025238 PMAQI
6th Aug 2025189 PMAQI
6th Aug 20251710 PMAQI
6th Aug 20251811 PMAQI
7th Aug 20252212 AMAQI
7th Aug 2025231 AMAQI
7th Aug 2025232 AMAQI
7th Aug 2025263 AMAQI
7th Aug 2025184 AMAQI
7th Aug 2025205 AMAQI
20°C15/27°C
7th Aug 2025196 AMAQI
7th Aug 2025197 AMAQI
7th Aug 2025188 AMAQI
7th Aug 2025209 AMAQI
7th Aug 20252110 AMAQI
7th Aug 20252111 AMAQI
7th Aug 20252212 PMAQI
7th Aug 2025221 PMAQI
7th Aug 2025222 PMAQI
7th Aug 2025253 PMAQI
7th Aug 2025234 PMAQI
7th Aug 2025225 PMAQI
7th Aug 2025226 PMAQI
7th Aug 2025227 PMAQI
7th Aug 2025248 PMAQI
7th Aug 2025239 PMAQI
7th Aug 20252210 PMAQI
7th Aug 20252311 PMAQI
8th Aug 20252212 AMAQI
8th Aug 2025231 AMAQI
8th Aug 2025272 AMAQI
8th Aug 2025263 AMAQI
8th Aug 2025244 AMAQI
8th Aug 2025225 AMAQI
20°C15/25°C
8th Aug 2025236 AMAQI
8th Aug 2025267 AMAQI
8th Aug 2025248 AMAQI
8th Aug 2025239 AMAQI
8th Aug 20252410 AMAQI
8th Aug 20252411 AMAQI
8th Aug 20252612 PMAQI
8th Aug 2025261 PMAQI
8th Aug 2025252 PMAQI
8th Aug 2025263 PMAQI
8th Aug 2025254 PMAQI
8th Aug 2025255 PMAQI
8th Aug 2025296 PMAQI
8th Aug 2025267 PMAQI
8th Aug 2025248 PMAQI
8th Aug 2025239 PMAQI
8th Aug 20252210 PMAQI
8th Aug 20252511 PMAQI
9th Aug 20252412 AMAQI
9th Aug 2025241 AMAQI
9th Aug 2025242 AMAQI
9th Aug 2025263 AMAQI
9th Aug 2025274 AMAQI
9th Aug 2025285 AMAQI
24°C16/33°C
9th Aug 2025256 AMAQI
9th Aug 2025207 AMAQI
9th Aug 2025228 AMAQI
9th Aug 2025229 AMAQI
9th Aug 20252310 AMAQI
9th Aug 20252311 AMAQI
9th Aug 20252412 PMAQI
9th Aug 2025241 PMAQI
9th Aug 2025252 PMAQI
9th Aug 2025263 PMAQI
9th Aug 2025244 PMAQI
9th Aug 2025245 PMAQI
9th Aug 2025266 PMAQI
9th Aug 2025267 PMAQI
9th Aug 2025268 PMAQI
9th Aug 2025269 PMAQI
9th Aug 20252310 PMAQI
9th Aug 20252611 PMAQI
10th Aug 20252612 AMAQI
10th Aug 2025281 AMAQI
10th Aug 2025282 AMAQI
10th Aug 2025303 AMAQI
10th Aug 2025324 AMAQI
10th Aug 2025265 AMAQI
26°C20/33°C
10th Aug 2025256 AMAQI
6 AM10th Aug 2025307 AMAQI
10th Aug 2025268 AMAQI
10th Aug 2025269 AMAQI
10th Aug 20252410 AMAQI
10th Aug 20252511 AMAQI
10th Aug 20252912 PMAQI
10th Aug 2025331 PMAQI
1 PM10th Aug 2025312 PMAQI
10th Aug 2025323 PMAQI
10th Aug 2025314 PMAQI
10th Aug 2025295 PMAQI
10th Aug 2025276 PMAQI
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
12 PM - 8 PM
31AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
6 AM - 11 AM
28AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 8 PM (Avg. 31), while the lowest AQI was between 6 AM to 11 AM (Avg. 28).
Night time
Avg. Highest Time
12 AM - 5 AM
29AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
12 AM - 11 PM
29AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 5 AM (Avg. 29), while the lowest AQI was between 12 AM to 11 PM (Avg. 29).
2025 Days Vs Air Quality
Fortuna, California, United States
2025
95%
210
5%
11
Total number of days with different AQI categories in last 222 days in 2025 (143 days remaining)
Good
210 DaysModerate
11 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2025, 95% of 222 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
Fortuna, California, United States
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
45AQI
45AQI
2nd January 2025
30AQI
30AQI
3rd January 2025
37AQI
37AQI
4th January 2025
30AQI
30AQI
5th January 2025
38AQI
38AQI
6th January 2025
30AQI
30AQI
7th January 2025
32AQI
32AQI
8th January 2025
35AQI
35AQI
9th January 2025
41AQI
41AQI
10th January 2025
43AQI
43AQI
11th January 2025
31AQI
31AQI
12th January 2025
33AQI
33AQI
13th January 2025
33AQI
33AQI
14th January 2025
47AQI
47AQI
15th January 2025
54AQI
54AQI
16th January 2025
48AQI
48AQI
17th January 2025
43AQI
43AQI
18th January 2025
42AQI
42AQI
19th January 2025
50AQI
50AQI
20th January 2025
44AQI
44AQI
21st January 2025
52AQI
52AQI
22nd January 2025
52AQI
52AQI
23rd January 2025
55AQI
55AQI
24th January 2025
54AQI
54AQI
25th January 2025
47AQI
47AQI
26th January 2025
45AQI
45AQI
27th January 2025
54AQI
54AQI
28th January 2025
58AQI
58AQI
29th January 2025
63AQI
63AQI
30th January 2025
64AQI
64AQI
31st January 2025
54AQI
54AQI
1st February 2025
38AQI
38AQI
2nd February 2025
33AQI
33AQI
3rd February 2025
30AQI
30AQI
4th February 2025
28AQI
28AQI
5th February 2025
37AQI
37AQI
6th February 2025
41AQI
41AQI
7th February 2025
35AQI
35AQI
8th February 2025
36AQI
36AQI
9th February 2025
36AQI
36AQI
10th February 2025
37AQI
37AQI
11th February 2025
38AQI
38AQI
12th February 2025
47AQI
47AQI
13th February 2025
34AQI
34AQI
14th February 2025
31AQI
31AQI
15th February 2025
37AQI
37AQI
16th February 2025
31AQI
31AQI
17th February 2025
32AQI
32AQI
18th February 2025
44AQI
44AQI
19th February 2025
34AQI
34AQI
20th February 2025
29AQI
29AQI
21st February 2025
39AQI
39AQI
22nd February 2025
41AQI
41AQI
23rd February 2025
28AQI
28AQI
24th February 2025
29AQI
29AQI
25th February 2025
30AQI
30AQI
26th February 2025
35AQI
35AQI
27th February 2025
39AQI
39AQI
28th February 2025
40AQI
40AQI
1st March 2025
38AQI
38AQI
2nd March 2025
29AQI
29AQI
3rd March 2025
29AQI
29AQI
4th March 2025
31AQI
31AQI
5th March 2025
25AQI
25AQI
6th March 2025
25AQI
25AQI
7th March 2025
32AQI
32AQI
8th March 2025
36AQI
36AQI
9th March 2025
31AQI
31AQI
10th March 2025
37AQI
37AQI
11th March 2025
33AQI
33AQI
12th March 2025
23AQI
23AQI
13th March 2025
23AQI
23AQI
14th March 2025
26AQI
26AQI
15th March 2025
28AQI
28AQI
16th March 2025
24AQI
24AQI
17th March 2025
19AQI
19AQI
18th March 2025
27AQI
27AQI
19th March 2025
28AQI
28AQI
20th March 2025
22AQI
22AQI
21st March 2025
21AQI
21AQI
22nd March 2025
20AQI
20AQI
23rd March 2025
24AQI
24AQI
24th March 2025
25AQI
25AQI
25th March 2025
29AQI
29AQI
26th March 2025
32AQI
32AQI
27th March 2025
19AQI
19AQI
28th March 2025
23AQI
23AQI
29th March 2025
25AQI
25AQI
30th March 2025
28AQI
28AQI
31st March 2025
20AQI
20AQI
1st April 2025
28AQI
28AQI
2nd April 2025
25AQI
25AQI
3rd April 2025
23AQI
23AQI
4th April 2025
28AQI
28AQI
5th April 2025
26AQI
26AQI
6th April 2025
27AQI
27AQI
7th April 2025
18AQI
18AQI
8th April 2025
21AQI
21AQI
9th April 2025
22AQI
22AQI
10th April 2025
25AQI
25AQI
11th April 2025
27AQI
27AQI
12th April 2025
19AQI
19AQI
13th April 2025
25AQI
25AQI
14th April 2025
31AQI
31AQI
15th April 2025
33AQI
33AQI
16th April 2025
34AQI
34AQI
17th April 2025
27AQI
27AQI
18th April 2025
29AQI
29AQI
19th April 2025
28AQI
28AQI
20th April 2025
33AQI
33AQI
21st April 2025
29AQI
29AQI
22nd April 2025
25AQI
25AQI
23rd April 2025
33AQI
33AQI
24th April 2025
40AQI
40AQI
25th April 2025
27AQI
27AQI
26th April 2025
27AQI
27AQI
27th April 2025
21AQI
21AQI
28th April 2025
24AQI
24AQI
29th April 2025
26AQI
26AQI
30th April 2025
30AQI
30AQI
1st May 2025
28AQI
28AQI
2nd May 2025
24AQI
24AQI
3rd May 2025
18AQI
18AQI
4th May 2025
20AQI
20AQI
5th May 2025
23AQI
23AQI
6th May 2025
24AQI
24AQI
7th May 2025
28AQI
28AQI
8th May 2025
24AQI
24AQI
9th May 2025
28AQI
28AQI
10th May 2025
23AQI
23AQI
11th May 2025
20AQI
20AQI
12th May 2025
17AQI
17AQI
13th May 2025
18AQI
18AQI
14th May 2025
22AQI
22AQI
15th May 2025
22AQI
22AQI
16th May 2025
23AQI
23AQI
17th May 2025
20AQI
20AQI
18th May 2025
23AQI
23AQI
19th May 2025
24AQI
24AQI
20th May 2025
19AQI
19AQI
21st May 2025
25AQI
25AQI
22nd May 2025
22AQI
22AQI
23rd May 2025
22AQI
22AQI
24th May 2025
25AQI
25AQI
25th May 2025
27AQI
27AQI
26th May 2025
19AQI
19AQI
27th May 2025
22AQI
22AQI
28th May 2025
30AQI
30AQI
29th May 2025
22AQI
22AQI
30th May 2025
23AQI
23AQI
31st May 2025
32AQI
32AQI
1st June 2025
33AQI
33AQI
2nd June 2025
31AQI
31AQI
3rd June 2025
32AQI
32AQI
4th June 2025
30AQI
30AQI
5th June 2025
28AQI
28AQI
6th June 2025
33AQI
33AQI
7th June 2025
28AQI
28AQI
8th June 2025
30AQI
30AQI
9th June 2025
30AQI
30AQI
10th June 2025
32AQI
32AQI
11th June 2025
31AQI
31AQI
12th June 2025
34AQI
34AQI
13th June 2025
38AQI
38AQI
14th June 2025
33AQI
33AQI
15th June 2025
29AQI
29AQI
16th June 2025
23AQI
23AQI
17th June 2025
21AQI
21AQI
18th June 2025
23AQI
23AQI
19th June 2025
25AQI
25AQI
20th June 2025
26AQI
26AQI
21st June 2025
18AQI
18AQI
22nd June 2025
17AQI
17AQI
23rd June 2025
20AQI
20AQI
24th June 2025
25AQI
25AQI
25th June 2025
25AQI
25AQI
26th June 2025
21AQI
21AQI
27th June 2025
22AQI
22AQI
28th June 2025
20AQI
20AQI
29th June 2025
23AQI
23AQI
30th June 2025
29AQI
29AQI
1st July 2025
29AQI
29AQI
2nd July 2025
23AQI
23AQI
3rd July 2025
23AQI
23AQI
4th July 2025
25AQI
25AQI
5th July 2025
31AQI
31AQI
6th July 2025
31AQI
31AQI
7th July 2025
29AQI
29AQI
8th July 2025
26AQI
26AQI
9th July 2025
21AQI
21AQI
10th July 2025
29AQI
29AQI
11th July 2025
49AQI
49AQI
12th July 2025
51AQI
51AQI
13th July 2025
39AQI
39AQI
14th July 2025
41AQI
41AQI
15th July 2025
46AQI
46AQI
16th July 2025
38AQI
38AQI
17th July 2025
33AQI
33AQI
18th July 2025
28AQI
28AQI
19th July 2025
33AQI
33AQI
20th July 2025
27AQI
27AQI
21st July 2025
32AQI
32AQI
22nd July 2025
27AQI
27AQI
23rd July 2025
28AQI
28AQI
24th July 2025
24AQI
24AQI
25th July 2025
21AQI
21AQI
26th July 2025
20AQI
20AQI
27th July 2025
20AQI
20AQI
28th July 2025
23AQI
23AQI
29th July 2025
25AQI
25AQI
30th July 2025
29AQI
29AQI
31st July 2025
25AQI
25AQI
1st August 2025
24AQI
24AQI
2nd August 2025
22AQI
22AQI
3rd August 2025
26AQI
26AQI
4th August 2025
28AQI
28AQI
5th August 2025
27AQI
27AQI
6th August 2025
27AQI
27AQI
7th August 2025
22AQI
22AQI
8th August 2025
25AQI
25AQI
9th August 2025
25AQI
25AQI
45AQI
35AQI
27AQI
27AQI
23AQI
27AQI
30AQI
25AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202530AQI
21
10
28
31
30
31
30
30
1
9
210
11
Highest AQI recorded in
January45AQI
Lowest AQI recorded in
May23AQI
202432AQI
16
1
12
29
31
31
28
30
1
26
3
1
21
8
2
225
12
3
Highest AQI recorded in
December46AQI
Lowest AQI recorded in
May22AQI
202336AQI
1
10
8
3
31
45
8
Highest AQI recorded in
August48AQI
Lowest AQI recorded in
December29AQI
202259AQI
1
10
17
2
1
1
1
12
18
3
Highest AQI recorded in
October72AQI
Lowest AQI recorded in
August42AQI
202093AQI
1
2
12
7
3
4
4
2
1
13
10
5
4
4
Highest AQI recorded in
October126AQI
Lowest AQI recorded in
August48AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2020(Avg.)
93AQILeast Polluted Year Recorded
2025(Avg.)
30AQIFortuna's annual 2025 AQI (30) shows an average percentage change of -34.6% (improved AQI) compared to previous years: 2020 (93), 2022 (59), 2023 (36), 2024 (32).
