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Boulogne-sur-Mer, Hauts-de-France, France 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

Boulogne-sur-Mer, Hauts-de-France, France

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2024
48AQI
Lowest AQI recorded on
9th Aug 2021
22AQI

Same Day Analysis (12th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 48 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 12th Aug - 13th Aug 2025

Boulogne-sur-Mer, Hauts-de-France, France

AQI
Day
Night
.

6 AM12th Aug 2025

9 PM

5 AM13th Aug 2025

Day time
Avg. Highest Time
12PM12th Aug

54AQI

Avg. Lowest Time
8AM12th Aug

42AQI

Night time
Avg. Highest Time
3AM13th Aug

55AQI

Avg. Lowest Time
10PM12th Aug

47AQI

In the last 24 hours,

Boulogne-sur-Mer's AQI reached its highest point of 55 at 3 AM during the Night, while the lowest point, 42, was recorded at 8 AM during the Day between 12th Aug and 13th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Boulogne-sur-Mer, Hauts-de-France, France

JulAug
14th - 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 - 11th11th - 12th12th - 13th13th
Day
Night
14th Jul 2025406 AMAQI
14th Jul 2025377 AMAQI
14th Jul 2025458 AMAQI
14th Jul 2025439 AMAQI
14th Jul 20253810 AMAQI
14th Jul 20253811 AMAQI
14th Jul 20253312 PMAQI
14th Jul 2025321 PMAQI
14th Jul 2025332 PMAQI
14th Jul 2025323 PMAQI
14th Jul 2025334 PMAQI
14th Jul 2025325 PMAQI
14th Jul 2025326 PMAQI
14th Jul 2025317 PMAQI
14th Jul 2025348 PMAQI
14th Jul 2025359 PMAQI
14th Jul 20253810 PMAQI
14th Jul 20253811 PMAQI
15th Jul 20253712 AMAQI
15th Jul 2025381 AMAQI
15th Jul 2025342 AMAQI
15th Jul 2025323 AMAQI
15th Jul 2025314 AMAQI
15th Jul 2025285 AMAQI

18°C16/19°C

15th Jul 2025306 AMAQI
15th Jul 2025307 AMAQI
15th Jul 2025308 AMAQI
15th Jul 2025299 AMAQI
15th Jul 20253010 AMAQI
15th Jul 20253011 AMAQI
15th Jul 20253212 PMAQI
15th Jul 2025321 PMAQI
15th Jul 2025322 PMAQI
15th Jul 2025323 PMAQI
15th Jul 2025344 PMAQI
15th Jul 2025325 PMAQI
15th Jul 2025346 PMAQI
15th Jul 2025337 PMAQI
15th Jul 2025338 PMAQI
15th Jul 2025349 PMAQI
15th Jul 20253210 PMAQI
15th Jul 20253411 PMAQI
16th Jul 20253212 AMAQI
16th Jul 2025321 AMAQI
16th Jul 2025332 AMAQI
16th Jul 2025413 AMAQI
16th Jul 2025444 AMAQI
16th Jul 2025465 AMAQI

17°C15/19°C

16th Jul 2025436 AMAQI
16th Jul 2025407 AMAQI
16th Jul 2025358 AMAQI
16th Jul 2025369 AMAQI
16th Jul 20253410 AMAQI
16th Jul 20253111 AMAQI
16th Jul 20252912 PMAQI
16th Jul 2025321 PMAQI
16th Jul 2025342 PMAQI
16th Jul 2025353 PMAQI
16th Jul 2025374 PMAQI
16th Jul 2025355 PMAQI
16th Jul 2025326 PMAQI
16th Jul 2025327 PMAQI
16th Jul 2025328 PMAQI
16th Jul 2025329 PMAQI
16th Jul 20253410 PMAQI
16th Jul 20253411 PMAQI
17th Jul 20253312 AMAQI
17th Jul 2025341 AMAQI
17th Jul 2025282 AMAQI
17th Jul 2025253 AMAQI
17th Jul 2025234 AMAQI
17th Jul 2025245 AMAQI

17°C15/20°C

17th Jul 2025306 AMAQI
17th Jul 2025327 AMAQI
17th Jul 2025348 AMAQI
17th Jul 2025379 AMAQI
17th Jul 20253410 AMAQI
17th Jul 20252811 AMAQI
17th Jul 20252612 PMAQI
17th Jul 2025271 PMAQI
17th Jul 2025282 PMAQI
17th Jul 2025293 PMAQI
17th Jul 2025294 PMAQI
17th Jul 2025285 PMAQI
17th Jul 2025276 PMAQI
17th Jul 2025287 PMAQI
17th Jul 2025288 PMAQI
17th Jul 2025289 PMAQI
17th Jul 20252810 PMAQI
17th Jul 20252911 PMAQI
18th Jul 20252912 AMAQI
18th Jul 2025291 AMAQI
18th Jul 2025192 AMAQI
18th Jul 2025143 AMAQI
18th Jul 2025144 AMAQI
18th Jul 2025165 AMAQI

18°C16/21°C

18th Jul 2025206 AMAQI
18th Jul 2025227 AMAQI
18th Jul 2025228 AMAQI
18th Jul 2025219 AMAQI
18th Jul 20252210 AMAQI
18th Jul 20252311 AMAQI
18th Jul 20252712 PMAQI
18th Jul 2025251 PMAQI
18th Jul 2025232 PMAQI
18th Jul 2025223 PMAQI
18th Jul 2025244 PMAQI
18th Jul 2025235 PMAQI
18th Jul 2025236 PMAQI
18th Jul 2025237 PMAQI
18th Jul 2025238 PMAQI
18th Jul 2025239 PMAQI
18th Jul 20252410 PMAQI
18th Jul 20252511 PMAQI
19th Jul 20252412 AMAQI
19th Jul 2025241 AMAQI
19th Jul 2025342 AMAQI
19th Jul 2025473 AMAQI
19th Jul 2025434 AMAQI
19th Jul 2025435 AMAQI

20°C16/25°C

19th Jul 2025396 AMAQI
19th Jul 2025357 AMAQI
19th Jul 2025338 AMAQI
19th Jul 2025369 AMAQI
19th Jul 20253410 AMAQI
19th Jul 20253211 AMAQI
19th Jul 20253312 PMAQI
19th Jul 2025341 PMAQI
19th Jul 2025342 PMAQI
19th Jul 2025383 PMAQI
19th Jul 2025384 PMAQI
19th Jul 2025385 PMAQI
19th Jul 2025376 PMAQI
19th Jul 2025307 PMAQI
19th Jul 2025308 PMAQI
19th Jul 2025309 PMAQI
19th Jul 20253210 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253312 AMAQI
20th Jul 2025331 AMAQI
20th Jul 2025262 AMAQI
20th Jul 2025193 AMAQI
20th Jul 2025214 AMAQI
20th Jul 2025215 AMAQI

19°C16/25°C

20th Jul 2025246 AMAQI
20th Jul 2025247 AMAQI
20th Jul 2025248 AMAQI
20th Jul 2025229 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20252211 AMAQI
20th Jul 20252212 PMAQI
20th Jul 2025231 PMAQI
20th Jul 2025262 PMAQI
20th Jul 2025263 PMAQI
20th Jul 2025264 PMAQI
20th Jul 2025265 PMAQI
20th Jul 2025266 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025268 PMAQI
20th Jul 2025259 PMAQI
20th Jul 20252510 PMAQI
20th Jul 20252511 PMAQI
21st Jul 20252512 AMAQI
21st Jul 2025251 AMAQI
21st Jul 2025192 AMAQI
21st Jul 2025163 AMAQI
21st Jul 2025154 AMAQI
21st Jul 2025215 AMAQI

17°C15/19°C

21st Jul 2025236 AMAQI
21st Jul 2025247 AMAQI
21st Jul 2025248 AMAQI
21st Jul 2025239 AMAQI
21st Jul 20251910 AMAQI
21st Jul 20252011 AMAQI
21st Jul 20251812 PMAQI
21st Jul 2025211 PMAQI
21st Jul 2025232 PMAQI
21st Jul 2025213 PMAQI
21st Jul 2025214 PMAQI
21st Jul 2025225 PMAQI
21st Jul 2025216 PMAQI
21st Jul 2025227 PMAQI
21st Jul 2025248 PMAQI
21st Jul 2025249 PMAQI
21st Jul 20252210 PMAQI
21st Jul 20252211 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025221 AMAQI
22nd Jul 2025192 AMAQI
22nd Jul 2025183 AMAQI
22nd Jul 2025164 AMAQI
22nd Jul 2025185 AMAQI

16°C14/19°C

22nd Jul 2025196 AMAQI
22nd Jul 2025197 AMAQI
22nd Jul 2025218 AMAQI
22nd Jul 2025219 AMAQI
22nd Jul 20252410 AMAQI
22nd Jul 20252511 AMAQI
22nd Jul 20252512 PMAQI
22nd Jul 2025241 PMAQI
22nd Jul 2025232 PMAQI
22nd Jul 2025223 PMAQI
22nd Jul 2025234 PMAQI
22nd Jul 2025225 PMAQI
22nd Jul 2025236 PMAQI
22nd Jul 2025227 PMAQI
22nd Jul 2025228 PMAQI
22nd Jul 2025229 PMAQI
22nd Jul 20252110 PMAQI
22nd Jul 20252111 PMAQI
23rd Jul 20252012 AMAQI
23rd Jul 2025211 AMAQI
23rd Jul 2025202 AMAQI
23rd Jul 2025213 AMAQI
23rd Jul 2025224 AMAQI
23rd Jul 2025225 AMAQI

17°C15/20°C

23rd Jul 2025246 AMAQI
23rd Jul 2025247 AMAQI
23rd Jul 2025248 AMAQI
23rd Jul 2025249 AMAQI
23rd Jul 20252510 AMAQI
23rd Jul 20252511 AMAQI
23rd Jul 20252512 PMAQI
23rd Jul 2025241 PMAQI
23rd Jul 2025232 PMAQI
23rd Jul 2025233 PMAQI
23rd Jul 2025244 PMAQI
23rd Jul 2025245 PMAQI
23rd Jul 2025266 PMAQI
23rd Jul 2025257 PMAQI
23rd Jul 2025258 PMAQI
23rd Jul 2025249 PMAQI
23rd Jul 20252310 PMAQI
23rd Jul 20252311 PMAQI
24th Jul 20252312 AMAQI
24th Jul 2025241 AMAQI
24th Jul 2025242 AMAQI
24th Jul 2025303 AMAQI
24th Jul 2025324 AMAQI
24th Jul 2025355 AMAQI

17°C16/19°C

24th Jul 2025346 AMAQI
24th Jul 2025407 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025539 AMAQI
24th Jul 20255010 AMAQI
24th Jul 20254011 AMAQI
24th Jul 20253912 PMAQI
24th Jul 2025401 PMAQI
24th Jul 2025362 PMAQI
24th Jul 2025343 PMAQI
24th Jul 2025354 PMAQI
24th Jul 2025345 PMAQI
24th Jul 2025346 PMAQI
24th Jul 2025357 PMAQI
24th Jul 2025318 PMAQI
24th Jul 2025289 PMAQI
24th Jul 20253210 PMAQI
24th Jul 20253011 PMAQI
25th Jul 20253112 AMAQI
25th Jul 2025331 AMAQI
25th Jul 2025272 AMAQI
25th Jul 2025243 AMAQI
25th Jul 2025304 AMAQI
25th Jul 2025345 AMAQI

17°C15/20°C

25th Jul 2025366 AMAQI
25th Jul 2025377 AMAQI
25th Jul 2025358 AMAQI
25th Jul 2025359 AMAQI
25th Jul 20253210 AMAQI
25th Jul 20252711 AMAQI
25th Jul 20252512 PMAQI
25th Jul 2025261 PMAQI
25th Jul 2025312 PMAQI
25th Jul 2025323 PMAQI
25th Jul 2025314 PMAQI
25th Jul 2025315 PMAQI
25th Jul 2025326 PMAQI
25th Jul 2025327 PMAQI
25th Jul 2025328 PMAQI
25th Jul 2025329 PMAQI
25th Jul 20253210 PMAQI
25th Jul 20253211 PMAQI
26th Jul 20253212 AMAQI
26th Jul 2025321 AMAQI
26th Jul 2025472 AMAQI
26th Jul 2025553 AMAQI
26th Jul 2025564 AMAQI
26th Jul 2025555 AMAQI

19°C17/22°C

26th Jul 2025526 AMAQI
26th Jul 2025527 AMAQI
26th Jul 2025538 AMAQI
26th Jul 2025509 AMAQI
26th Jul 20254610 AMAQI
26th Jul 20254811 AMAQI
26th Jul 20254812 PMAQI
26th Jul 2025451 PMAQI
26th Jul 2025472 PMAQI
26th Jul 2025443 PMAQI
26th Jul 2025414 PMAQI
26th Jul 2025375 PMAQI
26th Jul 2025376 PMAQI
26th Jul 2025377 PMAQI
26th Jul 2025358 PMAQI
26th Jul 2025369 PMAQI
26th Jul 20254210 PMAQI
26th Jul 20254311 PMAQI
27th Jul 20254212 AMAQI
27th Jul 2025441 AMAQI
27th Jul 2025412 AMAQI
27th Jul 2025333 AMAQI
27th Jul 2025324 AMAQI
27th Jul 2025275 AMAQI

18°C17/20°C

27th Jul 2025286 AMAQI
27th Jul 2025277 AMAQI
27th Jul 2025268 AMAQI
27th Jul 2025249 AMAQI
27th Jul 20252510 AMAQI
27th Jul 20252611 AMAQI
27th Jul 20252812 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025342 PMAQI
27th Jul 2025333 PMAQI
27th Jul 2025334 PMAQI
27th Jul 2025345 PMAQI
27th Jul 2025346 PMAQI
27th Jul 2025347 PMAQI
27th Jul 2025328 PMAQI
27th Jul 2025329 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253211 PMAQI
28th Jul 20253112 AMAQI
28th Jul 2025321 AMAQI
28th Jul 2025312 AMAQI
28th Jul 2025293 AMAQI
28th Jul 2025274 AMAQI
28th Jul 2025315 AMAQI

17°C16/20°C

28th Jul 2025296 AMAQI
28th Jul 2025297 AMAQI
28th Jul 2025308 AMAQI
28th Jul 2025329 AMAQI
28th Jul 20253210 AMAQI
28th Jul 20253211 AMAQI
28th Jul 20253412 PMAQI
28th Jul 2025341 PMAQI
28th Jul 2025332 PMAQI
28th Jul 2025333 PMAQI
28th Jul 2025334 PMAQI
28th Jul 2025335 PMAQI
28th Jul 2025336 PMAQI
28th Jul 2025337 PMAQI
28th Jul 2025328 PMAQI
28th Jul 2025339 PMAQI
28th Jul 20253210 PMAQI
28th Jul 20253211 PMAQI
29th Jul 20253212 AMAQI
29th Jul 2025321 AMAQI
29th Jul 2025402 AMAQI
29th Jul 2025443 AMAQI
29th Jul 2025454 AMAQI
29th Jul 2025405 AMAQI

17°C15/20°C

29th Jul 2025386 AMAQI
29th Jul 2025387 AMAQI
29th Jul 2025408 AMAQI
29th Jul 2025399 AMAQI
29th Jul 20253810 AMAQI
29th Jul 20253811 AMAQI
29th Jul 20253412 PMAQI
29th Jul 2025291 PMAQI
29th Jul 2025332 PMAQI
29th Jul 2025333 PMAQI
29th Jul 2025344 PMAQI
29th Jul 2025345 PMAQI
29th Jul 2025336 PMAQI
29th Jul 2025337 PMAQI
29th Jul 2025338 PMAQI
29th Jul 2025339 PMAQI
29th Jul 20253610 PMAQI
29th Jul 20253411 PMAQI
30th Jul 20253512 AMAQI
30th Jul 2025361 AMAQI
30th Jul 2025302 AMAQI
30th Jul 2025243 AMAQI
30th Jul 2025244 AMAQI
30th Jul 2025225 AMAQI

18°C16/19°C

30th Jul 2025316 AMAQI
30th Jul 2025307 AMAQI
30th Jul 2025308 AMAQI
30th Jul 2025309 AMAQI
30th Jul 20253110 AMAQI
30th Jul 20253211 AMAQI
30th Jul 20253412 PMAQI
30th Jul 2025341 PMAQI
30th Jul 2025342 PMAQI
30th Jul 2025313 PMAQI
30th Jul 2025304 PMAQI
30th Jul 2025305 PMAQI
30th Jul 2025296 PMAQI
30th Jul 2025297 PMAQI
30th Jul 2025328 PMAQI
30th Jul 2025319 PMAQI
30th Jul 20253110 PMAQI
30th Jul 20253111 PMAQI
31st Jul 20253112 AMAQI
31st Jul 2025311 AMAQI
31st Jul 2025312 AMAQI
31st Jul 2025313 AMAQI
31st Jul 2025324 AMAQI
31st Jul 2025355 AMAQI

18°C16/20°C

31st Jul 2025346 AMAQI
31st Jul 2025337 AMAQI
31st Jul 2025328 AMAQI
31st Jul 2025349 AMAQI
31st Jul 20253010 AMAQI
31st Jul 20253211 AMAQI
31st Jul 20252612 PMAQI
31st Jul 2025251 PMAQI
31st Jul 2025242 PMAQI
31st Jul 2025253 PMAQI
31st Jul 2025234 PMAQI
31st Jul 2025255 PMAQI
31st Jul 2025256 PMAQI
31st Jul 2025267 PMAQI
31st Jul 2025268 PMAQI
31st Jul 2025239 PMAQI
31st Jul 20252410 PMAQI
31st Jul 20252311 PMAQI
1st Aug 20252212 AMAQI
1st Aug 2025231 AMAQI
1st Aug 2025222 AMAQI
1st Aug 2025243 AMAQI
1st Aug 2025234 AMAQI
1st Aug 2025195 AMAQI

18°C17/20°C

1st Aug 2025196 AMAQI
1st Aug 2025247 AMAQI
1st Aug 2025308 AMAQI
1st Aug 2025289 AMAQI
1st Aug 20252410 AMAQI
1st Aug 20252411 AMAQI
1st Aug 20252612 PMAQI
1st Aug 2025261 PMAQI
1st Aug 2025242 PMAQI
1st Aug 2025253 PMAQI
1st Aug 2025224 PMAQI
1st Aug 2025255 PMAQI
1st Aug 2025226 PMAQI
1st Aug 2025227 PMAQI
1st Aug 2025228 PMAQI
1st Aug 2025239 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252212 AMAQI
2nd Aug 2025231 AMAQI
2nd Aug 2025222 AMAQI
2nd Aug 2025223 AMAQI
2nd Aug 2025244 AMAQI
2nd Aug 2025255 AMAQI

17°C15/19°C

2nd Aug 2025266 AMAQI
2nd Aug 2025227 AMAQI
2nd Aug 2025228 AMAQI
2nd Aug 2025239 AMAQI
2nd Aug 20252310 AMAQI
2nd Aug 20252211 AMAQI
2nd Aug 20252212 PMAQI
2nd Aug 2025241 PMAQI
2nd Aug 2025232 PMAQI
2nd Aug 2025203 PMAQI
2nd Aug 2025214 PMAQI
2nd Aug 2025235 PMAQI
2nd Aug 2025236 PMAQI
2nd Aug 2025217 PMAQI
2nd Aug 2025228 PMAQI
2nd Aug 2025219 PMAQI
2nd Aug 20252210 PMAQI
2nd Aug 20252211 PMAQI
3rd Aug 20252212 AMAQI
3rd Aug 2025221 AMAQI
3rd Aug 2025232 AMAQI
3rd Aug 2025233 AMAQI
3rd Aug 2025204 AMAQI
3rd Aug 2025245 AMAQI

16°C14/19°C

3rd Aug 2025326 AMAQI
3rd Aug 2025247 AMAQI
3rd Aug 2025308 AMAQI
3rd Aug 2025399 AMAQI
3rd Aug 20255510 AMAQI
3rd Aug 20253011 AMAQI
3rd Aug 20252612 PMAQI
3rd Aug 2025261 PMAQI
3rd Aug 2025222 PMAQI
3rd Aug 2025253 PMAQI
3rd Aug 2025244 PMAQI
3rd Aug 2025255 PMAQI
3rd Aug 2025286 PMAQI
3rd Aug 2025267 PMAQI
3rd Aug 2025268 PMAQI
3rd Aug 2025239 PMAQI
3rd Aug 20252410 PMAQI
3rd Aug 20252411 PMAQI
4th Aug 20252412 AMAQI
4th Aug 2025241 AMAQI
4th Aug 2025262 AMAQI
4th Aug 2025223 AMAQI
4th Aug 2025264 AMAQI
4th Aug 2025285 AMAQI

17°C16/19°C

4th Aug 2025266 AMAQI
4th Aug 2025267 AMAQI
4th Aug 2025308 AMAQI
4th Aug 2025249 AMAQI
4th Aug 20252510 AMAQI
4th Aug 20252811 AMAQI
4th Aug 20253012 PMAQI
4th Aug 2025261 PMAQI
4th Aug 2025222 PMAQI
4th Aug 2025233 PMAQI
4th Aug 2025254 PMAQI
4th Aug 2025225 PMAQI
4th Aug 2025236 PMAQI
4th Aug 2025227 PMAQI
4th Aug 2025228 PMAQI
4th Aug 2025229 PMAQI
4th Aug 20252410 PMAQI
4th Aug 20252411 PMAQI
5th Aug 20252412 AMAQI
5th Aug 2025241 AMAQI
5th Aug 2025232 AMAQI
5th Aug 2025213 AMAQI
5th Aug 2025194 AMAQI
5th Aug 2025235 AMAQI

19°C17/21°C

5th Aug 2025186 AMAQI
5th Aug 2025217 AMAQI
5th Aug 2025268 AMAQI
5th Aug 2025249 AMAQI
5th Aug 20252610 AMAQI
5th Aug 20252511 AMAQI
5th Aug 20252412 PMAQI
5th Aug 2025261 PMAQI
5th Aug 2025242 PMAQI
5th Aug 2025233 PMAQI
5th Aug 2025244 PMAQI
5th Aug 2025255 PMAQI
5th Aug 2025226 PMAQI
5th Aug 2025247 PMAQI
5th Aug 2025248 PMAQI
5th Aug 2025249 PMAQI
5th Aug 20252410 PMAQI
5th Aug 20252411 PMAQI
6th Aug 20252412 AMAQI
6th Aug 2025241 AMAQI
6th Aug 2025272 AMAQI
6th Aug 2025263 AMAQI
6th Aug 2025244 AMAQI
6th Aug 2025265 AMAQI

17°C14/19°C

6th Aug 2025226 AMAQI
6th Aug 2025237 AMAQI
6th Aug 2025258 AMAQI
6th Aug 2025279 AMAQI
6th Aug 20252810 AMAQI
6th Aug 20253011 AMAQI
6th Aug 20253012 PMAQI
6th Aug 2025301 PMAQI
6th Aug 2025302 PMAQI
6th Aug 2025263 PMAQI
6th Aug 2025274 PMAQI
6th Aug 2025285 PMAQI
6th Aug 2025266 PMAQI
6th Aug 2025277 PMAQI
6th Aug 2025278 PMAQI
6th Aug 2025259 PMAQI
6th Aug 20252410 PMAQI
6th Aug 20252411 PMAQI
7th Aug 20252412 AMAQI
7th Aug 2025241 AMAQI
7th Aug 2025262 AMAQI
7th Aug 2025273 AMAQI
7th Aug 2025274 AMAQI
7th Aug 2025285 AMAQI

17°C15/19°C

7th Aug 2025276 AMAQI
7th Aug 2025287 AMAQI
7th Aug 2025298 AMAQI
7th Aug 2025319 AMAQI
7th Aug 20253410 AMAQI
7th Aug 20253211 AMAQI
7th Aug 20253012 PMAQI
7th Aug 2025281 PMAQI
7th Aug 2025272 PMAQI
7th Aug 2025273 PMAQI
7th Aug 2025284 PMAQI
7th Aug 2025275 PMAQI
7th Aug 2025286 PMAQI
7th Aug 2025287 PMAQI
7th Aug 2025288 PMAQI
7th Aug 2025289 PMAQI
7th Aug 20252710 PMAQI
7th Aug 20252711 PMAQI
8th Aug 20252812 AMAQI
8th Aug 2025281 AMAQI
8th Aug 2025302 AMAQI
8th Aug 2025333 AMAQI
8th Aug 2025344 AMAQI
8th Aug 2025365 AMAQI

18°C15/20°C

8th Aug 2025336 AMAQI
8th Aug 2025337 AMAQI
8th Aug 2025318 AMAQI
8th Aug 2025339 AMAQI
8th Aug 20253410 AMAQI
8th Aug 20253811 AMAQI
8th Aug 20253912 PMAQI
8th Aug 2025361 PMAQI
8th Aug 2025352 PMAQI
8th Aug 2025333 PMAQI
8th Aug 2025334 PMAQI
8th Aug 2025345 PMAQI
8th Aug 2025326 PMAQI
8th Aug 2025327 PMAQI
8th Aug 2025328 PMAQI
8th Aug 2025319 PMAQI
8th Aug 20253110 PMAQI
8th Aug 20253111 PMAQI
9th Aug 20253212 AMAQI
9th Aug 2025321 AMAQI
9th Aug 2025282 AMAQI
9th Aug 2025263 AMAQI
9th Aug 2025284 AMAQI
9th Aug 2025275 AMAQI

18°C16/19°C

9th Aug 2025296 AMAQI
9th Aug 2025287 AMAQI
9th Aug 2025288 AMAQI
9th Aug 2025279 AMAQI
9th Aug 20252610 AMAQI
9th Aug 20252911 AMAQI
9th Aug 20253112 PMAQI
9th Aug 2025301 PMAQI
9th Aug 2025302 PMAQI
9th Aug 2025293 PMAQI
9th Aug 2025304 PMAQI
9th Aug 2025295 PMAQI
9th Aug 2025306 PMAQI
9th Aug 2025307 PMAQI
9th Aug 2025298 PMAQI
9th Aug 2025329 PMAQI
9th Aug 20253010 PMAQI
9th Aug 20253011 PMAQI
10th Aug 20253012 AMAQI
10th Aug 2025301 AMAQI
10th Aug 2025312 AMAQI
10th Aug 2025363 AMAQI
10th Aug 2025374 AMAQI
10th Aug 2025345 AMAQI

17°C16/20°C

10th Aug 2025326 AMAQI
10th Aug 2025337 AMAQI
10th Aug 2025338 AMAQI
10th Aug 2025329 AMAQI
10th Aug 20253210 AMAQI
10th Aug 20253611 AMAQI
10th Aug 20254112 PMAQI
10th Aug 2025421 PMAQI
10th Aug 2025372 PMAQI
10th Aug 2025363 PMAQI
10th Aug 2025364 PMAQI
10th Aug 2025365 PMAQI
10th Aug 2025376 PMAQI
10th Aug 2025357 PMAQI
10th Aug 2025388 PMAQI
10th Aug 2025359 PMAQI
10th Aug 20253510 PMAQI
10th Aug 20253411 PMAQI
11th Aug 20253512 AMAQI
11th Aug 2025341 AMAQI
11th Aug 2025472 AMAQI
11th Aug 2025583 AMAQI
11th Aug 2025564 AMAQI
11th Aug 2025525 AMAQI

19°C16/22°C

11th Aug 2025506 AMAQI
11th Aug 2025547 AMAQI
11th Aug 2025568 AMAQI
11th Aug 2025539 AMAQI
11th Aug 20255210 AMAQI
11th Aug 20255411 AMAQI
11th Aug 20255612 PMAQI
11th Aug 2025521 PMAQI
11th Aug 2025522 PMAQI
11th Aug 2025493 PMAQI
11th Aug 2025524 PMAQI
11th Aug 2025515 PMAQI
11th Aug 2025486 PMAQI
11th Aug 2025477 PMAQI
11th Aug 2025528 PMAQI
11th Aug 2025529 PMAQI
11th Aug 20255110 PMAQI
11th Aug 20255211 PMAQI
12th Aug 20255212 AMAQI
12th Aug 2025501 AMAQI
12th Aug 2025512 AMAQI
12th Aug 2025513 AMAQI
12th Aug 2025534 AMAQI
12th Aug 2025465 AMAQI

21°C17/27°C

12th Aug 2025506 AMAQI
12th Aug 2025507 AMAQI
12th Aug 2025428 AMAQI
12th Aug 2025469 AMAQI
12th Aug 20255210 AMAQI
12th Aug 20255211 AMAQI
12th Aug 20255412 PMAQI
12th Aug 2025491 PMAQI
12th Aug 2025512 PMAQI
12th Aug 2025473 PMAQI
12th Aug 2025494 PMAQI
12th Aug 2025525 PMAQI
12th Aug 2025506 PMAQI
12th Aug 2025507 PMAQI
12th Aug 2025528 PMAQI
12th Aug 2025519 PMAQI
12th Aug 20254710 PMAQI
12th Aug 20254911 PMAQI
13th Aug 20255012 AMAQI
13th Aug 2025491 AMAQI
13th Aug 2025532 AMAQI
13th Aug 2025553 AMAQI
13th Aug 2025544 AMAQI
13th Aug 2025545 AMAQI

22°C19/28°C

13th Aug 2025566 AMAQI
6 AM
13th Aug 2025567 AMAQI
13th Aug 2025548 AMAQI
13th Aug 2025589 AMAQI
13th Aug 20255410 AMAQI
13th Aug 20255411 AMAQI
13th Aug 20255412 PMAQI
13th Aug 2025561 PMAQI
1 PM
13th Aug 2025552 PMAQI
13th Aug 2025543 PMAQI
13th Aug 2025554 PMAQI
13th Aug 2025565 PMAQI
13th Aug 2025576 PMAQI
13th Aug 2025567 PMAQI
13th Aug 2025568 PMAQI
13th Aug 2025559 PMAQI
9 PM
13th Aug 20255510 PMAQI
13th Aug 20255611 PMAQI
1 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 9 PM

32AQI

16 hours / Day
480 hours / Month
Avg. Lowest Time
6 AM - 9 PM

32AQI

16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 9 PM (Avg. 32), while the lowest AQI was between 6 AM to 9 PM (Avg. 32).
Night time
Avg. Highest Time
12 AM - 11 PM

31AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM

31AQI

8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 31), while the lowest AQI was between 12 AM to 11 PM (Avg. 31).

2025 Days Vs Air Quality

Boulogne-sur-Mer, Hauts-de-France, France

2025

72%

162

28%

62

Total number of days with different AQI categories in last 225 days in 2025 (140 days remaining)

Good
162 Days
Moderate
62 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 72%

Health Risk Level:

Low

In 2025, 72% of 225 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.

Annual Air Quality Insights

Boulogne-sur-Mer, Hauts-de-France, France

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
41AQI
2nd January 2025
36AQI
3rd January 2025
45AQI
4th January 2025
54AQI
5th January 2025
35AQI
6th January 2025
29AQI
7th January 2025
28AQI
8th January 2025
30AQI
9th January 2025
31AQI
10th January 2025
51AQI
11th January 2025
66AQI
12th January 2025
63AQI
13th January 2025
63AQI
14th January 2025
68AQI
15th January 2025
71AQI
16th January 2025
60AQI
17th January 2025
62AQI
18th January 2025
61AQI
19th January 2025
69AQI
20th January 2025
72AQI
21st January 2025
66AQI
22nd January 2025
70AQI
23rd January 2025
51AQI
24th January 2025
39AQI
25th January 2025
34AQI
26th January 2025
33AQI
27th January 2025
31AQI
28th January 2025
34AQI
29th January 2025
31AQI
30th January 2025
32AQI
31st January 2025
40AQI
1st February 2025
50AQI
2nd February 2025
67AQI
3rd February 2025
78AQI
4th February 2025
56AQI
5th February 2025
54AQI
6th February 2025
60AQI
7th February 2025
51AQI
8th February 2025
54AQI
9th February 2025
44AQI
10th February 2025
87AQI
11th February 2025
84AQI
12th February 2025
63AQI
13th February 2025
67AQI
14th February 2025
77AQI
15th February 2025
73AQI
16th February 2025
66AQI
17th February 2025
65AQI
18th February 2025
71AQI
19th February 2025
72AQI
20th February 2025
57AQI
21st February 2025
50AQI
22nd February 2025
45AQI
23rd February 2025
39AQI
24th February 2025
32AQI
25th February 2025
41AQI
26th February 2025
33AQI
27th February 2025
29AQI
28th February 2025
39AQI
1st March 2025
49AQI
2nd March 2025
65AQI
3rd March 2025
81AQI
4th March 2025
85AQI
5th March 2025
84AQI
6th March 2025
67AQI
7th March 2025
48AQI
8th March 2025
55AQI
9th March 2025
62AQI
10th March 2025
90AQI
11th March 2025
76AQI
12th March 2025
41AQI
13th March 2025
42AQI
14th March 2025
38AQI
15th March 2025
42AQI
16th March 2025
53AQI
17th March 2025
47AQI
18th March 2025
47AQI
19th March 2025
50AQI
20th March 2025
51AQI
21st March 2025
54AQI
22nd March 2025
42AQI
23rd March 2025
41AQI
24th March 2025
78AQI
25th March 2025
97AQI
26th March 2025
71AQI
27th March 2025
61AQI
28th March 2025
55AQI
29th March 2025
39AQI
30th March 2025
44AQI
31st March 2025
45AQI
1st April 2025
41AQI
2nd April 2025
42AQI
3rd April 2025
49AQI
4th April 2025
50AQI
5th April 2025
54AQI
6th April 2025
39AQI
7th April 2025
37AQI
8th April 2025
49AQI
9th April 2025
52AQI
10th April 2025
48AQI
11th April 2025
52AQI
12th April 2025
52AQI
13th April 2025
44AQI
14th April 2025
36AQI
15th April 2025
42AQI
16th April 2025
24AQI
17th April 2025
34AQI
18th April 2025
39AQI
19th April 2025
40AQI
20th April 2025
46AQI
21st April 2025
49AQI
22nd April 2025
36AQI
23rd April 2025
23AQI
24th April 2025
46AQI
25th April 2025
52AQI
26th April 2025
61AQI
27th April 2025
60AQI
28th April 2025
50AQI
29th April 2025
53AQI
30th April 2025
55AQI
1st May 2025
52AQI
2nd May 2025
50AQI
3rd May 2025
58AQI
4th May 2025
28AQI
5th May 2025
28AQI
6th May 2025
28AQI
7th May 2025
30AQI
8th May 2025
39AQI
9th May 2025
37AQI
10th May 2025
31AQI
11th May 2025
32AQI
12th May 2025
29AQI
13th May 2025
39AQI
14th May 2025
46AQI
15th May 2025
42AQI
16th May 2025
37AQI
17th May 2025
38AQI
18th May 2025
43AQI
19th May 2025
44AQI
20th May 2025
34AQI
21st May 2025
37AQI
22nd May 2025
36AQI
23rd May 2025
27AQI
24th May 2025
31AQI
25th May 2025
27AQI
26th May 2025
32AQI
27th May 2025
29AQI
28th May 2025
28AQI
29th May 2025
31AQI
30th May 2025
24AQI
31st May 2025
26AQI
1st June 2025
32AQI
2nd June 2025
30AQI
3rd June 2025
28AQI
4th June 2025
24AQI
5th June 2025
19AQI
6th June 2025
22AQI
7th June 2025
19AQI
8th June 2025
22AQI
9th June 2025
44AQI
10th June 2025
51AQI
11th June 2025
35AQI
12th June 2025
37AQI
13th June 2025
44AQI
14th June 2025
39AQI
15th June 2025
31AQI
16th June 2025
33AQI
17th June 2025
30AQI
18th June 2025
32AQI
19th June 2025
38AQI
20th June 2025
41AQI
21st June 2025
36AQI
22nd June 2025
35AQI
23rd June 2025
29AQI
24th June 2025
29AQI
25th June 2025
26AQI
26th June 2025
27AQI
27th June 2025
28AQI
28th June 2025
25AQI
29th June 2025
23AQI
30th June 2025
29AQI
1st July 2025
38AQI
2nd July 2025
42AQI
3rd July 2025
37AQI
4th July 2025
31AQI
5th July 2025
28AQI
6th July 2025
24AQI
7th July 2025
23AQI
8th July 2025
24AQI
9th July 2025
26AQI
10th July 2025
27AQI
11th July 2025
30AQI
12th July 2025
28AQI
13th July 2025
31AQI
14th July 2025
36AQI
15th July 2025
32AQI
16th July 2025
33AQI
17th July 2025
29AQI
18th July 2025
25AQI
19th July 2025
33AQI
20th July 2025
26AQI
21st July 2025
22AQI
22nd July 2025
22AQI
23rd July 2025
23AQI
24th July 2025
36AQI
25th July 2025
34AQI
26th July 2025
41AQI
27th July 2025
32AQI
28th July 2025
32AQI
29th July 2025
34AQI
30th July 2025
31AQI
31st July 2025
28AQI
1st August 2025
23AQI
2nd August 2025
22AQI
3rd August 2025
24AQI
4th August 2025
24AQI
5th August 2025
23AQI
6th August 2025
25AQI
7th August 2025
27AQI
8th August 2025
33AQI
9th August 2025
32AQI
10th August 2025
34AQI
11th August 2025
48AQI
12th August 2025
48AQI

48AQI

57AQI

58AQI

45AQI

35AQI

31AQI

30AQI

30AQI

No. of days

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

202543AQI

16
15
10
18
14
17
21
9
29
2
29
1
31
12
162
62

Highest AQI recorded in

March

58AQI

Lowest AQI recorded in

August

30AQI

202442AQI

29
2
29
27
3
1
28
2
30
1
30
31
31
26
4
28
3
19
11
25
6
333
32
1

Highest AQI recorded in

March

51AQI

Lowest AQI recorded in

July

35AQI

202346AQI

31
26
2
31
29
1
27
4
29
1
29
31
24
6
31
28
1
27
4
343
19

Highest AQI recorded in

September

49AQI

Lowest AQI recorded in

November

41AQI

202246AQI

16
13
2
20
2
6
18
6
22
8
24
6
19
5
21
1
1
28
31
30
31
249
53
8

Highest AQI recorded in

March

73AQI

Lowest AQI recorded in

February

33AQI

202141AQI

14
4
20
8
19
10
2
21
7
25
6
21
9
26
5
31
15
13
27
3
1
23
7
22
9
264
81
3

Highest AQI recorded in

September

51AQI

Lowest AQI recorded in

August

30AQI

202029AQI

13
21
20
30
31
29
2
29
30
18
12
16
2
237
16

Highest AQI recorded in

November

47AQI

Lowest AQI recorded in

July

20AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2022(Avg.)
46AQI
Least Polluted Year Recorded
2020(Avg.)
29AQI

Boulogne-sur-Mer's annual 2025 AQI (43) shows an average percentage change of 8.2% (worsened AQI) compared to previous years: 2020 (29), 2021 (41), 2022 (46), 2023 (46), 2024 (42).