Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Oulu, Pohjois Pohjanmaa, Finland 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

Oulu, Pohjois Pohjanmaa, Finland

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2025
43AQI
Lowest AQI recorded on
3rd Aug 2022
8AQI

Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 43 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025

Oulu, Pohjois Pohjanmaa, Finland

AQI
Day
Night
.

3 AM2nd Aug 2025

8 PM

2 AM3rd Aug 2025

Day time
Avg. Highest Time
1PM2nd Aug

44AQI

Avg. Lowest Time
9PM2nd Aug

35AQI

Night time
Avg. Highest Time
3AM2nd Aug

40AQI

Avg. Lowest Time
2AM3rd Aug

38AQI

In the last 24 hours,

Oulu's AQI reached its highest point of 44 at 1 PM during the Day, while the lowest point, 35, was recorded at 9 PM during the Day between 2nd Aug and 3rd Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Oulu, Pohjois Pohjanmaa, Finland

JulAug
04th - 05th05th - 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 - 31st31st - 01st01st - 02nd02nd - 03rd03rd
Day
Night
4th Jul 2025153 AMAQI
4th Jul 2025154 AMAQI
4th Jul 2025155 AMAQI
4th Jul 2025166 AMAQI
4th Jul 2025157 AMAQI
4th Jul 2025168 AMAQI
4th Jul 2025169 AMAQI
4th Jul 20251610 AMAQI
4th Jul 20251711 AMAQI
4th Jul 20251612 PMAQI
4th Jul 2025161 PMAQI
4th Jul 2025152 PMAQI
4th Jul 2025163 PMAQI
4th Jul 2025164 PMAQI
4th Jul 2025175 PMAQI
4th Jul 2025166 PMAQI
4th Jul 2025167 PMAQI
4th Jul 2025168 PMAQI
4th Jul 2025159 PMAQI
4th Jul 20251610 PMAQI
4th Jul 20251611 PMAQI
5th Jul 20251612 AMAQI
5th Jul 2025171 AMAQI
5th Jul 2025172 AMAQI

11°C9/11°C

5th Jul 2025163 AMAQI
5th Jul 2025164 AMAQI
5th Jul 2025165 AMAQI
5th Jul 2025176 AMAQI
5th Jul 2025177 AMAQI
5th Jul 2025178 AMAQI
5th Jul 2025169 AMAQI
5th Jul 20251710 AMAQI
5th Jul 20251511 AMAQI
5th Jul 20251412 PMAQI
5th Jul 2025151 PMAQI
5th Jul 2025152 PMAQI
5th Jul 2025163 PMAQI
5th Jul 2025164 PMAQI
5th Jul 2025165 PMAQI
5th Jul 2025166 PMAQI
5th Jul 2025167 PMAQI
5th Jul 2025168 PMAQI
5th Jul 2025179 PMAQI
5th Jul 20251710 PMAQI
5th Jul 20251711 PMAQI
6th Jul 20251712 AMAQI
6th Jul 2025171 AMAQI
6th Jul 2025172 AMAQI

12°C11/13°C

6th Jul 2025173 AMAQI
6th Jul 2025174 AMAQI
6th Jul 2025165 AMAQI
6th Jul 2025156 AMAQI
6th Jul 2025157 AMAQI
6th Jul 2025168 AMAQI
6th Jul 2025149 AMAQI
6th Jul 20251510 AMAQI
6th Jul 20251411 AMAQI
6th Jul 20251312 PMAQI
6th Jul 2025141 PMAQI
6th Jul 2025152 PMAQI
6th Jul 2025163 PMAQI
6th Jul 2025174 PMAQI
6th Jul 2025175 PMAQI
6th Jul 2025166 PMAQI
6th Jul 2025177 PMAQI
6th Jul 2025168 PMAQI
6th Jul 2025179 PMAQI
6th Jul 20251710 PMAQI
6th Jul 20251711 PMAQI
7th Jul 20251712 AMAQI
7th Jul 2025171 AMAQI
7th Jul 2025172 AMAQI

12°C11/14°C

7th Jul 2025163 AMAQI
7th Jul 2025154 AMAQI
7th Jul 2025155 AMAQI
7th Jul 2025166 AMAQI
7th Jul 2025167 AMAQI
7th Jul 2025168 AMAQI
7th Jul 2025169 AMAQI
7th Jul 20251610 AMAQI
7th Jul 20251711 AMAQI
7th Jul 20251612 PMAQI
7th Jul 2025181 PMAQI
7th Jul 2025172 PMAQI
7th Jul 2025173 PMAQI
7th Jul 2025174 PMAQI
7th Jul 2025175 PMAQI
7th Jul 2025176 PMAQI
7th Jul 2025187 PMAQI
7th Jul 2025178 PMAQI
7th Jul 2025179 PMAQI
7th Jul 20251710 PMAQI
7th Jul 20251811 PMAQI
8th Jul 20251812 AMAQI
8th Jul 2025171 AMAQI
8th Jul 2025182 AMAQI

12°C11/12°C

8th Jul 2025183 AMAQI
8th Jul 2025184 AMAQI
8th Jul 2025165 AMAQI
8th Jul 2025186 AMAQI
8th Jul 2025187 AMAQI
8th Jul 2025178 AMAQI
8th Jul 2025189 AMAQI
8th Jul 20251810 AMAQI
8th Jul 20251811 AMAQI
8th Jul 20251812 PMAQI
8th Jul 2025171 PMAQI
8th Jul 2025162 PMAQI
8th Jul 2025183 PMAQI
8th Jul 2025174 PMAQI
8th Jul 2025185 PMAQI
8th Jul 2025186 PMAQI
8th Jul 2025187 PMAQI
8th Jul 2025188 PMAQI
8th Jul 2025179 PMAQI
8th Jul 20251810 PMAQI
8th Jul 20251811 PMAQI
9th Jul 20251812 AMAQI
9th Jul 2025181 AMAQI
9th Jul 2025182 AMAQI

12°C11/13°C

9th Jul 2025183 AMAQI
9th Jul 2025184 AMAQI
9th Jul 2025175 AMAQI
9th Jul 2025166 AMAQI
9th Jul 2025177 AMAQI
9th Jul 2025178 AMAQI
9th Jul 2025179 AMAQI
9th Jul 20251810 AMAQI
9th Jul 20251711 AMAQI
9th Jul 20251712 PMAQI
9th Jul 2025161 PMAQI
9th Jul 2025172 PMAQI
9th Jul 2025173 PMAQI
9th Jul 2025174 PMAQI
9th Jul 2025175 PMAQI
9th Jul 2025176 PMAQI
9th Jul 2025177 PMAQI
9th Jul 2025178 PMAQI
9th Jul 2025179 PMAQI
9th Jul 20251710 PMAQI
9th Jul 20251711 PMAQI
10th Jul 20251712 AMAQI
10th Jul 2025171 AMAQI
10th Jul 2025172 AMAQI

12°C12/13°C

10th Jul 2025203 AMAQI
10th Jul 2025234 AMAQI
10th Jul 2025275 AMAQI
10th Jul 2025216 AMAQI
10th Jul 2025197 AMAQI
10th Jul 2025198 AMAQI
10th Jul 2025209 AMAQI
10th Jul 20251910 AMAQI
10th Jul 20252011 AMAQI
10th Jul 20251912 PMAQI
10th Jul 2025201 PMAQI
10th Jul 2025202 PMAQI
10th Jul 2025203 PMAQI
10th Jul 2025204 PMAQI
10th Jul 2025205 PMAQI
10th Jul 2025206 PMAQI
10th Jul 2025207 PMAQI
10th Jul 2025208 PMAQI
10th Jul 2025209 PMAQI
10th Jul 20252010 PMAQI
10th Jul 20252011 PMAQI
11th Jul 20252112 AMAQI
11th Jul 2025201 AMAQI
11th Jul 2025202 AMAQI

14°C12/16°C

11th Jul 2025273 AMAQI
11th Jul 2025244 AMAQI
11th Jul 2025225 AMAQI
11th Jul 2025246 AMAQI
11th Jul 2025277 AMAQI
11th Jul 2025308 AMAQI
11th Jul 2025299 AMAQI
11th Jul 20252510 AMAQI
11th Jul 20252311 AMAQI
11th Jul 20252412 PMAQI
11th Jul 2025241 PMAQI
11th Jul 2025242 PMAQI
11th Jul 2025223 PMAQI
11th Jul 2025224 PMAQI
11th Jul 2025225 PMAQI
11th Jul 2025236 PMAQI
11th Jul 2025237 PMAQI
11th Jul 2025238 PMAQI
11th Jul 2025239 PMAQI
11th Jul 20252310 PMAQI
11th Jul 20252411 PMAQI
12th Jul 20252412 AMAQI
12th Jul 2025231 AMAQI
12th Jul 2025232 AMAQI

16°C14/18°C

12th Jul 2025403 AMAQI
12th Jul 2025464 AMAQI
12th Jul 2025365 AMAQI
12th Jul 2025306 AMAQI
12th Jul 2025287 AMAQI
12th Jul 2025278 AMAQI
12th Jul 2025269 AMAQI
12th Jul 20252710 AMAQI
12th Jul 20252611 AMAQI
12th Jul 20252612 PMAQI
12th Jul 2025251 PMAQI
12th Jul 2025272 PMAQI
12th Jul 2025273 PMAQI
12th Jul 2025284 PMAQI
12th Jul 2025285 PMAQI
12th Jul 2025286 PMAQI
12th Jul 2025287 PMAQI
12th Jul 2025298 PMAQI
12th Jul 2025299 PMAQI
12th Jul 20252910 PMAQI
12th Jul 20253011 PMAQI
13th Jul 20253012 AMAQI
13th Jul 2025281 AMAQI
13th Jul 2025272 AMAQI

16°C14/17°C

13th Jul 2025313 AMAQI
13th Jul 2025324 AMAQI
13th Jul 2025315 AMAQI
13th Jul 2025336 AMAQI
13th Jul 2025307 AMAQI
13th Jul 2025298 AMAQI
13th Jul 2025289 AMAQI
13th Jul 20253010 AMAQI
13th Jul 20252911 AMAQI
13th Jul 20253012 PMAQI
13th Jul 2025301 PMAQI
13th Jul 2025292 PMAQI
13th Jul 2025283 PMAQI
13th Jul 2025294 PMAQI
13th Jul 2025275 PMAQI
13th Jul 2025286 PMAQI
13th Jul 2025297 PMAQI
13th Jul 2025298 PMAQI
13th Jul 2025299 PMAQI
13th Jul 20252810 PMAQI
13th Jul 20252811 PMAQI
14th Jul 20252812 AMAQI
14th Jul 2025281 AMAQI
14th Jul 2025282 AMAQI

17°C15/19°C

14th Jul 2025383 AMAQI
14th Jul 2025414 AMAQI
14th Jul 2025405 AMAQI
14th Jul 2025386 AMAQI
14th Jul 2025397 AMAQI
14th Jul 2025408 AMAQI
14th Jul 2025379 AMAQI
14th Jul 20253710 AMAQI
14th Jul 20253811 AMAQI
14th Jul 20253712 PMAQI
14th Jul 2025351 PMAQI
14th Jul 2025292 PMAQI
14th Jul 2025313 PMAQI
14th Jul 2025304 PMAQI
14th Jul 2025315 PMAQI
14th Jul 2025316 PMAQI
14th Jul 2025307 PMAQI
14th Jul 2025318 PMAQI
14th Jul 2025319 PMAQI
14th Jul 20253210 PMAQI
14th Jul 20253411 PMAQI
15th Jul 20253412 AMAQI
15th Jul 2025351 AMAQI
15th Jul 2025362 AMAQI

18°C16/19°C

15th Jul 2025313 AMAQI
15th Jul 2025324 AMAQI
15th Jul 2025325 AMAQI
15th Jul 2025346 AMAQI
15th Jul 2025347 AMAQI
15th Jul 2025348 AMAQI
15th Jul 2025359 AMAQI
15th Jul 20253610 AMAQI
15th Jul 20253911 AMAQI
15th Jul 20253912 PMAQI
15th Jul 2025401 PMAQI
15th Jul 2025402 PMAQI
15th Jul 2025333 PMAQI
15th Jul 2025324 PMAQI
15th Jul 2025335 PMAQI
15th Jul 2025336 PMAQI
15th Jul 2025327 PMAQI
15th Jul 2025328 PMAQI
15th Jul 2025329 PMAQI
15th Jul 20253310 PMAQI
15th Jul 20253411 PMAQI
16th Jul 20253512 AMAQI
16th Jul 2025351 AMAQI
16th Jul 2025352 AMAQI

18°C16/19°C

16th Jul 2025353 AMAQI
16th Jul 2025334 AMAQI
16th Jul 2025315 AMAQI
16th Jul 2025286 AMAQI
16th Jul 2025327 AMAQI
16th Jul 2025308 AMAQI
16th Jul 2025299 AMAQI
16th Jul 20252610 AMAQI
16th Jul 20252811 AMAQI
16th Jul 20252612 PMAQI
16th Jul 2025261 PMAQI
16th Jul 2025272 PMAQI
16th Jul 2025303 PMAQI
16th Jul 2025304 PMAQI
16th Jul 2025305 PMAQI
16th Jul 2025306 PMAQI
16th Jul 2025307 PMAQI
16th Jul 2025308 PMAQI
16th Jul 2025309 PMAQI
16th Jul 20253010 PMAQI
16th Jul 20253011 PMAQI
17th Jul 20253112 AMAQI
17th Jul 2025321 AMAQI
17th Jul 2025322 AMAQI

17°C15/18°C

17th Jul 2025313 AMAQI
17th Jul 2025244 AMAQI
17th Jul 2025215 AMAQI
17th Jul 2025226 AMAQI
17th Jul 2025267 AMAQI
17th Jul 2025258 AMAQI
17th Jul 2025269 AMAQI
17th Jul 20252610 AMAQI
17th Jul 20252611 AMAQI
17th Jul 20252712 PMAQI
17th Jul 2025261 PMAQI
17th Jul 2025262 PMAQI
17th Jul 2025263 PMAQI
17th Jul 2025274 PMAQI
17th Jul 2025275 PMAQI
17th Jul 2025276 PMAQI
17th Jul 2025267 PMAQI
17th Jul 2025268 PMAQI
17th Jul 2025269 PMAQI
17th Jul 20252710 PMAQI
17th Jul 20252811 PMAQI
18th Jul 20252812 AMAQI
18th Jul 2025281 AMAQI
18th Jul 2025282 AMAQI

16°C15/17°C

18th Jul 2025273 AMAQI
18th Jul 2025254 AMAQI
18th Jul 2025335 AMAQI
18th Jul 2025306 AMAQI
18th Jul 2025277 AMAQI
18th Jul 2025268 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20252610 AMAQI
18th Jul 20252511 AMAQI
18th Jul 20252612 PMAQI
18th Jul 2025261 PMAQI
18th Jul 2025242 PMAQI
18th Jul 2025263 PMAQI
18th Jul 2025264 PMAQI
18th Jul 2025265 PMAQI
18th Jul 2025266 PMAQI
18th Jul 2025267 PMAQI
18th Jul 2025258 PMAQI
18th Jul 2025269 PMAQI
18th Jul 20252810 PMAQI
18th Jul 20252711 PMAQI
19th Jul 20252712 AMAQI
19th Jul 2025291 AMAQI
19th Jul 2025282 AMAQI

16°C15/17°C

19th Jul 2025293 AMAQI
19th Jul 2025284 AMAQI
19th Jul 2025305 AMAQI
19th Jul 2025296 AMAQI
19th Jul 2025317 AMAQI
19th Jul 2025308 AMAQI
19th Jul 2025299 AMAQI
19th Jul 20252710 AMAQI
19th Jul 20252911 AMAQI
19th Jul 20252712 PMAQI
19th Jul 2025261 PMAQI
19th Jul 2025292 PMAQI
19th Jul 2025273 PMAQI
19th Jul 2025274 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025286 PMAQI
19th Jul 2025287 PMAQI
19th Jul 2025278 PMAQI
19th Jul 2025279 PMAQI
19th Jul 20252810 PMAQI
19th Jul 20252811 PMAQI
20th Jul 20252912 AMAQI
20th Jul 2025291 AMAQI
20th Jul 2025292 AMAQI

15°C15/16°C

20th Jul 2025353 AMAQI
20th Jul 2025404 AMAQI
20th Jul 2025425 AMAQI
20th Jul 2025426 AMAQI
20th Jul 2025367 AMAQI
20th Jul 2025358 AMAQI
20th Jul 2025339 AMAQI
20th Jul 20253310 AMAQI
20th Jul 20253311 AMAQI
20th Jul 20253412 PMAQI
20th Jul 2025381 PMAQI
20th Jul 2025392 PMAQI
20th Jul 2025343 PMAQI
20th Jul 2025344 PMAQI
20th Jul 2025345 PMAQI
20th Jul 2025346 PMAQI
20th Jul 2025337 PMAQI
20th Jul 2025318 PMAQI
20th Jul 2025329 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025341 AMAQI
21st Jul 2025342 AMAQI

18°C15/21°C

21st Jul 2025343 AMAQI
21st Jul 2025364 AMAQI
21st Jul 2025355 AMAQI
21st Jul 2025346 AMAQI
21st Jul 2025337 AMAQI
21st Jul 2025348 AMAQI
21st Jul 2025349 AMAQI
21st Jul 20253310 AMAQI
21st Jul 20253411 AMAQI
21st Jul 20253312 PMAQI
21st Jul 2025321 PMAQI
21st Jul 2025322 PMAQI
21st Jul 2025343 PMAQI
21st Jul 2025334 PMAQI
21st Jul 2025345 PMAQI
21st Jul 2025356 PMAQI
21st Jul 2025357 PMAQI
21st Jul 2025358 PMAQI
21st Jul 2025359 PMAQI
21st Jul 20253610 PMAQI
21st Jul 20253511 PMAQI
22nd Jul 20253512 AMAQI
22nd Jul 2025331 AMAQI
22nd Jul 2025332 AMAQI

19°C16/21°C

22nd Jul 2025403 AMAQI
22nd Jul 2025424 AMAQI
22nd Jul 2025425 AMAQI
22nd Jul 2025406 AMAQI
22nd Jul 2025387 AMAQI
22nd Jul 2025398 AMAQI
22nd Jul 2025399 AMAQI
22nd Jul 20254110 AMAQI
22nd Jul 20254011 AMAQI
22nd Jul 20253712 PMAQI
22nd Jul 2025391 PMAQI
22nd Jul 2025392 PMAQI
22nd Jul 2025403 PMAQI
22nd Jul 2025404 PMAQI
22nd Jul 2025385 PMAQI
22nd Jul 2025396 PMAQI
22nd Jul 2025397 PMAQI
22nd Jul 2025398 PMAQI
22nd Jul 2025399 PMAQI
22nd Jul 20253910 PMAQI
22nd Jul 20254011 PMAQI
23rd Jul 20254012 AMAQI
23rd Jul 2025401 AMAQI
23rd Jul 2025382 AMAQI

18°C17/18°C

23rd Jul 2025423 AMAQI
23rd Jul 2025414 AMAQI
23rd Jul 2025415 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025448 AMAQI
23rd Jul 2025479 AMAQI
23rd Jul 20254510 AMAQI
23rd Jul 20254411 AMAQI
23rd Jul 20254412 PMAQI
23rd Jul 2025411 PMAQI
23rd Jul 2025412 PMAQI
23rd Jul 2025423 PMAQI
23rd Jul 2025414 PMAQI
23rd Jul 2025405 PMAQI
23rd Jul 2025416 PMAQI
23rd Jul 2025417 PMAQI
23rd Jul 2025418 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20254410 PMAQI
23rd Jul 20254411 PMAQI
24th Jul 20254312 AMAQI
24th Jul 2025431 AMAQI
24th Jul 2025432 AMAQI

17°C16/17°C

24th Jul 2025473 AMAQI
24th Jul 2025504 AMAQI
24th Jul 2025515 AMAQI
24th Jul 2025506 AMAQI
24th Jul 2025477 AMAQI
24th Jul 2025458 AMAQI
24th Jul 2025479 AMAQI
24th Jul 20254810 AMAQI
24th Jul 20254711 AMAQI
24th Jul 20254612 PMAQI
24th Jul 2025441 PMAQI
24th Jul 2025452 PMAQI
24th Jul 2025463 PMAQI
24th Jul 2025464 PMAQI
24th Jul 2025465 PMAQI
24th Jul 2025476 PMAQI
24th Jul 2025457 PMAQI
24th Jul 2025458 PMAQI
24th Jul 2025469 PMAQI
24th Jul 20254710 PMAQI
24th Jul 20254911 PMAQI
25th Jul 20255012 AMAQI
25th Jul 2025501 AMAQI
25th Jul 2025502 AMAQI

17°C16/17°C

25th Jul 2025473 AMAQI
25th Jul 2025474 AMAQI
25th Jul 2025485 AMAQI
25th Jul 2025466 AMAQI
25th Jul 2025477 AMAQI
25th Jul 2025488 AMAQI
25th Jul 2025489 AMAQI
25th Jul 20254910 AMAQI
25th Jul 20254611 AMAQI
25th Jul 20254512 PMAQI
25th Jul 2025481 PMAQI
25th Jul 2025482 PMAQI
25th Jul 2025493 PMAQI
25th Jul 2025504 PMAQI
25th Jul 2025505 PMAQI
25th Jul 2025506 PMAQI
25th Jul 2025497 PMAQI
25th Jul 2025488 PMAQI
25th Jul 2025489 PMAQI
25th Jul 20254910 PMAQI
25th Jul 20255011 PMAQI
26th Jul 20254912 AMAQI
26th Jul 2025501 AMAQI
26th Jul 2025502 AMAQI

16°C16/17°C

26th Jul 2025473 AMAQI
26th Jul 2025454 AMAQI
26th Jul 2025445 AMAQI
26th Jul 2025466 AMAQI
26th Jul 2025477 AMAQI
26th Jul 2025478 AMAQI
26th Jul 2025469 AMAQI
26th Jul 20254510 AMAQI
26th Jul 20254511 AMAQI
26th Jul 20254512 PMAQI
26th Jul 2025451 PMAQI
26th Jul 2025462 PMAQI
26th Jul 2025463 PMAQI
26th Jul 2025464 PMAQI
26th Jul 2025455 PMAQI
26th Jul 2025466 PMAQI
26th Jul 2025467 PMAQI
26th Jul 2025468 PMAQI
26th Jul 2025449 PMAQI
26th Jul 20254610 PMAQI
26th Jul 20254711 PMAQI
27th Jul 20254812 AMAQI
27th Jul 2025481 AMAQI
27th Jul 2025482 AMAQI

16°C15/16°C

27th Jul 2025433 AMAQI
27th Jul 2025414 AMAQI
27th Jul 2025425 AMAQI
27th Jul 2025416 AMAQI
27th Jul 2025427 AMAQI
27th Jul 2025408 AMAQI
27th Jul 2025399 AMAQI
27th Jul 20254010 AMAQI
27th Jul 20253711 AMAQI
27th Jul 20253812 PMAQI
27th Jul 2025381 PMAQI
27th Jul 2025392 PMAQI
27th Jul 2025413 PMAQI
27th Jul 2025414 PMAQI
27th Jul 2025415 PMAQI
27th Jul 2025426 PMAQI
27th Jul 2025427 PMAQI
27th Jul 2025418 PMAQI
27th Jul 2025419 PMAQI
27th Jul 20254310 PMAQI
27th Jul 20254211 PMAQI
28th Jul 20254312 AMAQI
28th Jul 2025431 AMAQI
28th Jul 2025442 AMAQI

16°C15/17°C

28th Jul 2025373 AMAQI
28th Jul 2025364 AMAQI
28th Jul 2025385 AMAQI
28th Jul 2025366 AMAQI
28th Jul 2025397 AMAQI
28th Jul 2025408 AMAQI
28th Jul 2025399 AMAQI
28th Jul 20253810 AMAQI
28th Jul 20253811 AMAQI
28th Jul 20253812 PMAQI
28th Jul 2025401 PMAQI
28th Jul 2025392 PMAQI
28th Jul 2025383 PMAQI
28th Jul 2025384 PMAQI
28th Jul 2025385 PMAQI
28th Jul 2025386 PMAQI
28th Jul 2025377 PMAQI
28th Jul 2025368 PMAQI
28th Jul 2025369 PMAQI
28th Jul 20253810 PMAQI
28th Jul 20253911 PMAQI
29th Jul 20254012 AMAQI
29th Jul 2025401 AMAQI
29th Jul 2025402 AMAQI

17°C17/19°C

29th Jul 2025363 AMAQI
29th Jul 2025374 AMAQI
29th Jul 2025435 AMAQI
29th Jul 2025396 AMAQI
29th Jul 2025367 AMAQI
29th Jul 2025378 AMAQI
29th Jul 2025389 AMAQI
29th Jul 20253910 AMAQI
29th Jul 20253911 AMAQI
29th Jul 20254012 PMAQI
29th Jul 2025391 PMAQI
29th Jul 2025392 PMAQI
29th Jul 2025403 PMAQI
29th Jul 2025394 PMAQI
29th Jul 2025395 PMAQI
29th Jul 2025396 PMAQI
29th Jul 2025397 PMAQI
29th Jul 2025388 PMAQI
29th Jul 2025399 PMAQI
29th Jul 20253910 PMAQI
29th Jul 20253911 PMAQI
30th Jul 20253812 AMAQI
30th Jul 2025391 AMAQI
30th Jul 2025392 AMAQI

18°C16/21°C

30th Jul 2025403 AMAQI
30th Jul 2025394 AMAQI
30th Jul 2025405 AMAQI
30th Jul 2025426 AMAQI
30th Jul 2025387 AMAQI
30th Jul 2025398 AMAQI
30th Jul 2025399 AMAQI
30th Jul 20253910 AMAQI
30th Jul 20254011 AMAQI
30th Jul 20253712 PMAQI
30th Jul 2025371 PMAQI
30th Jul 2025382 PMAQI
30th Jul 2025383 PMAQI
30th Jul 2025394 PMAQI
30th Jul 2025385 PMAQI
30th Jul 2025386 PMAQI
30th Jul 2025387 PMAQI
30th Jul 2025398 PMAQI
30th Jul 2025389 PMAQI
30th Jul 20253810 PMAQI
30th Jul 20253911 PMAQI
31st Jul 20253912 AMAQI
31st Jul 2025391 AMAQI
31st Jul 2025392 AMAQI

18°C17/18°C

31st Jul 2025393 AMAQI
31st Jul 2025394 AMAQI
31st Jul 2025405 AMAQI
31st Jul 2025426 AMAQI
31st Jul 2025417 AMAQI
31st Jul 2025428 AMAQI
31st Jul 2025449 AMAQI
31st Jul 20254610 AMAQI
31st Jul 20254511 AMAQI
31st Jul 20254312 PMAQI
31st Jul 2025421 PMAQI
31st Jul 2025432 PMAQI
31st Jul 2025423 PMAQI
31st Jul 2025444 PMAQI
31st Jul 2025415 PMAQI
31st Jul 2025416 PMAQI
31st Jul 2025447 PMAQI
31st Jul 2025448 PMAQI
31st Jul 2025469 PMAQI
31st Jul 20254210 PMAQI
31st Jul 20254111 PMAQI
1st Aug 20254412 AMAQI
1st Aug 2025441 AMAQI
1st Aug 2025452 AMAQI

18°C16/19°C

1st Aug 2025483 AMAQI
1st Aug 2025424 AMAQI
1st Aug 2025425 AMAQI
1st Aug 2025406 AMAQI
1st Aug 2025457 AMAQI
1st Aug 2025478 AMAQI
1st Aug 2025459 AMAQI
1st Aug 20254110 AMAQI
1st Aug 20254511 AMAQI
1st Aug 20254212 PMAQI
1st Aug 2025441 PMAQI
1st Aug 2025422 PMAQI
1st Aug 2025423 PMAQI
1st Aug 2025444 PMAQI
1st Aug 2025425 PMAQI
1st Aug 2025416 PMAQI
1st Aug 2025407 PMAQI
1st Aug 2025448 PMAQI
1st Aug 2025409 PMAQI
1st Aug 20254210 PMAQI
1st Aug 20254211 PMAQI
2nd Aug 20254212 AMAQI
2nd Aug 2025431 AMAQI
2nd Aug 2025422 AMAQI

19°C16/22°C

2nd Aug 2025403 AMAQI
2nd Aug 2025374 AMAQI
2nd Aug 2025385 AMAQI
2nd Aug 2025386 AMAQI
2nd Aug 2025417 AMAQI
2nd Aug 2025438 AMAQI
2nd Aug 2025439 AMAQI
2nd Aug 20254010 AMAQI
2nd Aug 20254111 AMAQI
2nd Aug 20254212 PMAQI
2nd Aug 2025441 PMAQI
2nd Aug 2025422 PMAQI
2nd Aug 2025423 PMAQI
2nd Aug 2025404 PMAQI
2nd Aug 2025385 PMAQI
2nd Aug 2025386 PMAQI
2nd Aug 2025397 PMAQI
2nd Aug 2025378 PMAQI
2nd Aug 2025359 PMAQI
2nd Aug 20253910 PMAQI
2nd Aug 20253911 PMAQI
3rd Aug 20254012 AMAQI
3rd Aug 2025401 AMAQI
3rd Aug 2025382 AMAQI

18°C16/20°C

3rd Aug 2025343 AMAQI
3 AM
3rd Aug 2025314 AMAQI
3rd Aug 2025345 AMAQI
3rd Aug 2025296 AMAQI
3rd Aug 2025357 AMAQI
3rd Aug 2025298 AMAQI
3rd Aug 2025279 AMAQI
3rd Aug 20252510 AMAQI
3rd Aug 20252811 AMAQI
11 AM
3rd Aug 20252812 PMAQI
3rd Aug 2025281 PMAQI
3rd Aug 2025292 PMAQI
3rd Aug 2025313 PMAQI
3rd Aug 2025314 PMAQI
3rd Aug 2025325 PMAQI
3rd Aug 2025326 PMAQI
8 PM
11 PM
2 AM

--°C/°C

Day time
Avg. Highest Time
3 AM - 8 PM

32AQI

18 hours / Day
540 hours / Month
Avg. Lowest Time
3 AM - 8 PM

32AQI

18 hours / Day
540 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 AM to 8 PM (Avg. 32), while the lowest AQI was between 3 AM to 8 PM (Avg. 32).
Night time
Avg. Highest Time
12 AM - 11 PM

32AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
12 AM - 11 PM

32AQI

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. 32), while the lowest AQI was between 12 AM to 11 PM (Avg. 32).

2025 Days Vs Air Quality

Oulu, Pohjois Pohjanmaa, Finland

2025

100%

213

Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)

Good
213 Days
Moderate
0 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 100%

Health Risk Level:

Very Low

In 2025, 100% of 215 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

Oulu, Pohjois Pohjanmaa, Finland

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
28AQI
2nd January 2025
24AQI
3rd January 2025
29AQI
4th January 2025
27AQI
5th January 2025
27AQI
6th January 2025
23AQI
7th January 2025
24AQI
8th January 2025
24AQI
9th January 2025
24AQI
10th January 2025
30AQI
11th January 2025
32AQI
12th January 2025
30AQI
13th January 2025
25AQI
14th January 2025
24AQI
15th January 2025
23AQI
16th January 2025
22AQI
17th January 2025
22AQI
18th January 2025
24AQI
19th January 2025
24AQI
20th January 2025
30AQI
21st January 2025
31AQI
22nd January 2025
25AQI
23rd January 2025
29AQI
24th January 2025
25AQI
25th January 2025
23AQI
26th January 2025
24AQI
27th January 2025
22AQI
28th January 2025
22AQI
29th January 2025
22AQI
30th January 2025
21AQI
31st January 2025
21AQI
1st February 2025
22AQI
2nd February 2025
21AQI
3rd February 2025
24AQI
4th February 2025
27AQI
5th February 2025
23AQI
6th February 2025
23AQI
7th February 2025
23AQI
8th February 2025
23AQI
9th February 2025
23AQI
10th February 2025
25AQI
11th February 2025
25AQI
12th February 2025
24AQI
13th February 2025
23AQI
14th February 2025
24AQI
15th February 2025
24AQI
16th February 2025
28AQI
17th February 2025
32AQI
18th February 2025
24AQI
19th February 2025
28AQI
20th February 2025
24AQI
21st February 2025
26AQI
22nd February 2025
28AQI
23rd February 2025
38AQI
24th February 2025
40AQI
25th February 2025
36AQI
26th February 2025
48AQI
27th February 2025
35AQI
28th February 2025
29AQI
1st March 2025
27AQI
2nd March 2025
24AQI
3rd March 2025
24AQI
4th March 2025
25AQI
5th March 2025
25AQI
6th March 2025
24AQI
7th March 2025
25AQI
8th March 2025
26AQI
9th March 2025
28AQI
10th March 2025
30AQI
11th March 2025
32AQI
12th March 2025
42AQI
13th March 2025
43AQI
14th March 2025
41AQI
15th March 2025
30AQI
16th March 2025
25AQI
17th March 2025
21AQI
18th March 2025
23AQI
19th March 2025
18AQI
20th March 2025
20AQI
21st March 2025
28AQI
22nd March 2025
24AQI
23rd March 2025
24AQI
24th March 2025
27AQI
25th March 2025
27AQI
26th March 2025
30AQI
27th March 2025
29AQI
28th March 2025
27AQI
29th March 2025
30AQI
30th March 2025
34AQI
31st March 2025
37AQI
1st April 2025
34AQI
2nd April 2025
35AQI
3rd April 2025
35AQI
4th April 2025
28AQI
5th April 2025
24AQI
6th April 2025
23AQI
7th April 2025
25AQI
8th April 2025
28AQI
9th April 2025
29AQI
10th April 2025
23AQI
11th April 2025
18AQI
12th April 2025
16AQI
13th April 2025
19AQI
14th April 2025
22AQI
15th April 2025
26AQI
16th April 2025
30AQI
17th April 2025
35AQI
18th April 2025
27AQI
19th April 2025
23AQI
20th April 2025
17AQI
21st April 2025
15AQI
22nd April 2025
18AQI
23rd April 2025
17AQI
24th April 2025
16AQI
25th April 2025
19AQI
26th April 2025
16AQI
27th April 2025
16AQI
28th April 2025
19AQI
29th April 2025
17AQI
30th April 2025
19AQI
1st May 2025
18AQI
2nd May 2025
16AQI
3rd May 2025
15AQI
4th May 2025
14AQI
5th May 2025
14AQI
6th May 2025
15AQI
7th May 2025
15AQI
8th May 2025
16AQI
9th May 2025
17AQI
10th May 2025
18AQI
11th May 2025
19AQI
12th May 2025
21AQI
13th May 2025
20AQI
14th May 2025
19AQI
15th May 2025
19AQI
16th May 2025
20AQI
17th May 2025
18AQI
18th May 2025
17AQI
19th May 2025
20AQI
20th May 2025
18AQI
21st May 2025
14AQI
22nd May 2025
15AQI
23rd May 2025
17AQI
24th May 2025
17AQI
25th May 2025
18AQI
26th May 2025
19AQI
27th May 2025
22AQI
28th May 2025
21AQI
29th May 2025
23AQI
30th May 2025
20AQI
31st May 2025
20AQI
1st June 2025
16AQI
2nd June 2025
17AQI
3rd June 2025
19AQI
4th June 2025
18AQI
5th June 2025
21AQI
6th June 2025
19AQI
7th June 2025
19AQI
8th June 2025
17AQI
9th June 2025
17AQI
10th June 2025
18AQI
11th June 2025
20AQI
12th June 2025
23AQI
13th June 2025
20AQI
14th June 2025
20AQI
15th June 2025
22AQI
16th June 2025
21AQI
17th June 2025
23AQI
18th June 2025
21AQI
19th June 2025
19AQI
20th June 2025
18AQI
21st June 2025
18AQI
22nd June 2025
17AQI
23rd June 2025
17AQI
24th June 2025
19AQI
25th June 2025
17AQI
26th June 2025
18AQI
27th June 2025
18AQI
28th June 2025
19AQI
29th June 2025
17AQI
30th June 2025
17AQI
1st July 2025
16AQI
2nd July 2025
17AQI
3rd July 2025
15AQI
4th July 2025
16AQI
5th July 2025
16AQI
6th July 2025
16AQI
7th July 2025
17AQI
8th July 2025
18AQI
9th July 2025
17AQI
10th July 2025
20AQI
11th July 2025
23AQI
12th July 2025
29AQI
13th July 2025
29AQI
14th July 2025
33AQI
15th July 2025
34AQI
16th July 2025
31AQI
17th July 2025
27AQI
18th July 2025
27AQI
19th July 2025
28AQI
20th July 2025
34AQI
21st July 2025
34AQI
22nd July 2025
39AQI
23rd July 2025
42AQI
24th July 2025
46AQI
25th July 2025
49AQI
26th July 2025
47AQI
27th July 2025
42AQI
28th July 2025
39AQI
29th July 2025
39AQI
30th July 2025
39AQI
31st July 2025
42AQI
1st August 2025
43AQI

25AQI

28AQI

28AQI

23AQI

18AQI

19AQI

30AQI

43AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202524AQI

31
28
31
30
31
30
31
1
213

Highest AQI recorded in

August

43AQI

Lowest AQI recorded in

May

18AQI

202419AQI

31
29
31
30
31
30
31
31
30
31
30
31
366

Highest AQI recorded in

December

23AQI

Lowest AQI recorded in

October

14AQI

202317AQI

31
28
31
30
31
30
31
31
30
31
29
31
364

Highest AQI recorded in

May

24AQI

Lowest AQI recorded in

July

13AQI

202217AQI

20
22
31
29
1
31
30
24
3
29
31
30
31
311
1

Highest AQI recorded in

April

28AQI

Lowest AQI recorded in

August

11AQI

202122AQI

31
28
31
30
31
30
31
31
30
31
30
31
365

Highest AQI recorded in

April

28AQI

Lowest AQI recorded in

September

16AQI

202023AQI

13
21
18
30
30
31
30
31
30
31
265

Highest AQI recorded in

March

31AQI

Lowest AQI recorded in

October

18AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
24AQI
Least Polluted Year Recorded
2022(Avg.)
17AQI

Oulu's annual 2025 AQI (24) shows an average percentage change of 27.3% (worsened AQI) compared to previous years: 2020 (23), 2021 (22), 2022 (17), 2023 (17), 2024 (19).