Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Grande Synthe, 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

Grande Synthe, Hauts De France, France

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
18th Aug 2023
84AQI
Lowest AQI recorded on
3rd Aug 2022
17AQI

Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 28 of Good air quality, showing improvement over 2024 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 20th Aug - 21st Aug 2025

Grande Synthe, Hauts De France, France

AQI
Day
Night
.

6 AM20th Aug 2025

9 PM

5 AM21st Aug 2025

Day time
Avg. Highest Time
11AM20th Aug

35AQI

Avg. Lowest Time
2PM20th Aug

26AQI

Night time
Avg. Highest Time
10PM20th Aug

28AQI

Avg. Lowest Time
5AM21st Aug

24AQI

In the last 24 hours,

Grande Synthe's AQI reached its highest point of 35 at 11 AM during the Day, while the lowest point, 24, was recorded at 5 AM during the Night between 20th Aug and 21st Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Grande Synthe, Hauts De France, France

JulAug
22nd - 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 - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st
Day
Night
22nd Jul 2025196 AMAQI
22nd Jul 2025187 AMAQI
22nd Jul 2025208 AMAQI
22nd Jul 2025209 AMAQI
22nd Jul 20251910 AMAQI
22nd Jul 20252011 AMAQI
22nd Jul 20252112 PMAQI
22nd Jul 2025221 PMAQI
22nd Jul 2025222 PMAQI
22nd Jul 2025213 PMAQI
22nd Jul 2025214 PMAQI
22nd Jul 2025225 PMAQI
22nd Jul 2025256 PMAQI
22nd Jul 2025247 PMAQI
22nd Jul 2025228 PMAQI
22nd Jul 2025229 PMAQI
22nd Jul 20252110 PMAQI
22nd Jul 20252111 PMAQI
23rd Jul 20252112 AMAQI
23rd Jul 2025211 AMAQI
23rd Jul 2025222 AMAQI
23rd Jul 2025223 AMAQI
23rd Jul 2025204 AMAQI
23rd Jul 2025205 AMAQI

18°C15/22°C

23rd Jul 2025266 AMAQI
23rd Jul 2025237 AMAQI
23rd Jul 2025238 AMAQI
23rd Jul 2025269 AMAQI
23rd Jul 20252810 AMAQI
23rd Jul 20252811 AMAQI
23rd Jul 20253212 PMAQI
23rd Jul 2025291 PMAQI
23rd Jul 2025282 PMAQI
23rd Jul 2025293 PMAQI
23rd Jul 2025304 PMAQI
23rd Jul 2025285 PMAQI
23rd Jul 2025316 PMAQI
23rd Jul 2025267 PMAQI
23rd Jul 2025308 PMAQI
23rd Jul 2025299 PMAQI
23rd Jul 20252510 PMAQI
23rd Jul 20252511 PMAQI
24th Jul 20252512 AMAQI
24th Jul 2025241 AMAQI
24th Jul 2025352 AMAQI
24th Jul 2025403 AMAQI
24th Jul 2025464 AMAQI
24th Jul 2025505 AMAQI

18°C16/20°C

24th Jul 2025486 AMAQI
24th Jul 2025447 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025479 AMAQI
24th Jul 20254910 AMAQI
24th Jul 20254411 AMAQI
24th Jul 20253812 PMAQI
24th Jul 2025441 PMAQI
24th Jul 2025402 PMAQI
24th Jul 2025393 PMAQI
24th Jul 2025404 PMAQI
24th Jul 2025425 PMAQI
24th Jul 2025366 PMAQI
24th Jul 2025337 PMAQI
24th Jul 2025308 PMAQI
24th Jul 2025359 PMAQI
24th Jul 20253810 PMAQI
24th Jul 20253711 PMAQI
25th Jul 20253612 AMAQI
25th Jul 2025381 AMAQI
25th Jul 2025272 AMAQI
25th Jul 2025263 AMAQI
25th Jul 2025264 AMAQI
25th Jul 2025295 AMAQI

18°C16/20°C

25th Jul 2025376 AMAQI
25th Jul 2025397 AMAQI
25th Jul 2025368 AMAQI
25th Jul 2025329 AMAQI
25th Jul 20252710 AMAQI
25th Jul 20252311 AMAQI
25th Jul 20252412 PMAQI
25th Jul 2025261 PMAQI
25th Jul 2025272 PMAQI
25th Jul 2025283 PMAQI
25th Jul 2025284 PMAQI
25th Jul 2025295 PMAQI
25th Jul 2025326 PMAQI
25th Jul 2025347 PMAQI
25th Jul 2025388 PMAQI
25th Jul 2025349 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20253111 PMAQI
26th Jul 20253112 AMAQI
26th Jul 2025321 AMAQI
26th Jul 2025392 AMAQI
26th Jul 2025513 AMAQI
26th Jul 2025554 AMAQI
26th Jul 2025555 AMAQI

19°C18/20°C

26th Jul 2025566 AMAQI
26th Jul 2025557 AMAQI
26th Jul 2025548 AMAQI
26th Jul 2025559 AMAQI
26th Jul 20255810 AMAQI
26th Jul 20255711 AMAQI
26th Jul 20255412 PMAQI
26th Jul 2025531 PMAQI
26th Jul 2025532 PMAQI
26th Jul 2025493 PMAQI
26th Jul 2025434 PMAQI
26th Jul 2025425 PMAQI
26th Jul 2025436 PMAQI
26th Jul 2025397 PMAQI
26th Jul 2025358 PMAQI
26th Jul 2025409 PMAQI
26th Jul 20254710 PMAQI
26th Jul 20254711 PMAQI
27th Jul 20254612 AMAQI
27th Jul 2025481 AMAQI
27th Jul 2025432 AMAQI
27th Jul 2025353 AMAQI
27th Jul 2025284 AMAQI
27th Jul 2025255 AMAQI

19°C17/22°C

27th Jul 2025226 AMAQI
27th Jul 2025227 AMAQI
27th Jul 2025278 AMAQI
27th Jul 2025219 AMAQI
27th Jul 20251810 AMAQI
27th Jul 20251711 AMAQI
27th Jul 20251712 PMAQI
27th Jul 2025231 PMAQI
27th Jul 2025272 PMAQI
27th Jul 2025283 PMAQI
27th Jul 2025274 PMAQI
27th Jul 2025285 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025327 PMAQI
27th Jul 2025308 PMAQI
27th Jul 2025299 PMAQI
27th Jul 20252810 PMAQI
27th Jul 20252811 PMAQI
28th Jul 20252812 AMAQI
28th Jul 2025291 AMAQI
28th Jul 2025292 AMAQI
28th Jul 2025293 AMAQI
28th Jul 2025324 AMAQI
28th Jul 2025355 AMAQI

18°C17/19°C

28th Jul 2025296 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025299 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20253611 AMAQI
28th Jul 20254512 PMAQI
28th Jul 2025351 PMAQI
28th Jul 2025302 PMAQI
28th Jul 2025293 PMAQI
28th Jul 2025284 PMAQI
28th Jul 2025295 PMAQI
28th Jul 2025326 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025328 PMAQI
28th Jul 2025329 PMAQI
28th Jul 20253210 PMAQI
28th Jul 20253111 PMAQI
29th Jul 20253112 AMAQI
29th Jul 2025311 AMAQI
29th Jul 2025382 AMAQI
29th Jul 2025443 AMAQI
29th Jul 2025494 AMAQI
29th Jul 2025465 AMAQI

18°C16/20°C

29th Jul 2025466 AMAQI
29th Jul 2025517 AMAQI
29th Jul 2025518 AMAQI
29th Jul 2025529 AMAQI
29th Jul 20255410 AMAQI
29th Jul 20255311 AMAQI
29th Jul 20253412 PMAQI
29th Jul 2025331 PMAQI
29th Jul 2025332 PMAQI
29th Jul 2025343 PMAQI
29th Jul 2025354 PMAQI
29th Jul 2025355 PMAQI
29th Jul 2025346 PMAQI
29th Jul 2025337 PMAQI
29th Jul 2025338 PMAQI
29th Jul 2025369 PMAQI
29th Jul 20254010 PMAQI
29th Jul 20253911 PMAQI
30th Jul 20254012 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025342 AMAQI
30th Jul 2025273 AMAQI
30th Jul 2025284 AMAQI
30th Jul 2025295 AMAQI

18°C16/19°C

30th Jul 2025336 AMAQI
30th Jul 2025397 AMAQI
30th Jul 2025458 AMAQI
30th Jul 2025489 AMAQI
30th Jul 20254510 AMAQI
30th Jul 20253711 AMAQI
30th Jul 20253312 PMAQI
30th Jul 2025351 PMAQI
30th Jul 2025342 PMAQI
30th Jul 2025293 PMAQI
30th Jul 2025284 PMAQI
30th Jul 2025285 PMAQI
30th Jul 2025286 PMAQI
30th Jul 2025327 PMAQI
30th Jul 2025328 PMAQI
30th Jul 2025299 PMAQI
30th Jul 20252910 PMAQI
30th Jul 20252911 PMAQI
31st Jul 20252912 AMAQI
31st Jul 2025291 AMAQI
31st Jul 2025292 AMAQI
31st Jul 2025293 AMAQI
31st Jul 2025284 AMAQI
31st Jul 2025305 AMAQI

18°C16/20°C

31st Jul 2025356 AMAQI
31st Jul 2025417 AMAQI
31st Jul 2025388 AMAQI
31st Jul 2025319 AMAQI
31st Jul 20253010 AMAQI
31st Jul 20252911 AMAQI
31st Jul 20252312 PMAQI
31st Jul 2025241 PMAQI
31st Jul 2025222 PMAQI
31st Jul 2025223 PMAQI
31st Jul 2025234 PMAQI
31st Jul 2025235 PMAQI
31st Jul 2025226 PMAQI
31st Jul 2025217 PMAQI
31st Jul 2025228 PMAQI
31st Jul 2025239 PMAQI
31st Jul 20252410 PMAQI
31st Jul 20252211 PMAQI
1st Aug 20252212 AMAQI
1st Aug 2025231 AMAQI
1st Aug 2025192 AMAQI
1st Aug 2025213 AMAQI
1st Aug 2025194 AMAQI
1st Aug 2025215 AMAQI

19°C17/20°C

1st Aug 2025196 AMAQI
1st Aug 2025247 AMAQI
1st Aug 2025238 AMAQI
1st Aug 2025289 AMAQI
1st Aug 20253010 AMAQI
1st Aug 20252411 AMAQI
1st Aug 20252312 PMAQI
1st Aug 2025211 PMAQI
1st Aug 2025232 PMAQI
1st Aug 2025223 PMAQI
1st Aug 2025214 PMAQI
1st Aug 2025215 PMAQI
1st Aug 2025206 PMAQI
1st Aug 2025207 PMAQI
1st Aug 2025218 PMAQI
1st Aug 2025229 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252212 AMAQI
2nd Aug 2025221 AMAQI
2nd Aug 2025212 AMAQI
2nd Aug 2025203 AMAQI
2nd Aug 2025214 AMAQI
2nd Aug 2025215 AMAQI

18°C17/19°C

2nd Aug 2025216 AMAQI
2nd Aug 2025197 AMAQI
2nd Aug 2025188 AMAQI
2nd Aug 2025289 AMAQI
2nd Aug 20252210 AMAQI
2nd Aug 20251711 AMAQI
2nd Aug 20252212 PMAQI
2nd Aug 2025221 PMAQI
2nd Aug 2025212 PMAQI
2nd Aug 2025193 PMAQI
2nd Aug 2025214 PMAQI
2nd Aug 2025215 PMAQI
2nd Aug 2025216 PMAQI
2nd Aug 2025207 PMAQI
2nd Aug 2025218 PMAQI
2nd Aug 2025219 PMAQI
2nd Aug 20252110 PMAQI
2nd Aug 20252211 PMAQI
3rd Aug 20252112 AMAQI
3rd Aug 2025211 AMAQI
3rd Aug 2025222 AMAQI
3rd Aug 2025213 AMAQI
3rd Aug 2025194 AMAQI
3rd Aug 2025235 AMAQI

17°C15/19°C

3rd Aug 2025266 AMAQI
3rd Aug 2025237 AMAQI
3rd Aug 2025248 AMAQI
3rd Aug 2025259 AMAQI
3rd Aug 20252510 AMAQI
3rd Aug 20252511 AMAQI
3rd Aug 20252612 PMAQI
3rd Aug 2025241 PMAQI
3rd Aug 2025222 PMAQI
3rd Aug 2025233 PMAQI
3rd Aug 2025234 PMAQI
3rd Aug 2025235 PMAQI
3rd Aug 2025276 PMAQI
3rd Aug 2025247 PMAQI
3rd Aug 2025258 PMAQI
3rd Aug 2025249 PMAQI
3rd Aug 20252310 PMAQI
3rd Aug 20252311 PMAQI
4th Aug 20252312 AMAQI
4th Aug 2025231 AMAQI
4th Aug 2025222 AMAQI
4th Aug 2025253 AMAQI
4th Aug 2025204 AMAQI
4th Aug 2025255 AMAQI

18°C15/21°C

4th Aug 2025286 AMAQI
4th Aug 2025267 AMAQI
4th Aug 2025318 AMAQI
4th Aug 2025229 AMAQI
4th Aug 20252310 AMAQI
4th Aug 20252511 AMAQI
4th Aug 20253012 PMAQI
4th Aug 2025281 PMAQI
4th Aug 2025222 PMAQI
4th Aug 2025233 PMAQI
4th Aug 2025224 PMAQI
4th Aug 2025245 PMAQI
4th Aug 2025236 PMAQI
4th Aug 2025227 PMAQI
4th Aug 2025238 PMAQI
4th Aug 2025229 PMAQI
4th Aug 20252410 PMAQI
4th Aug 20252311 PMAQI
5th Aug 20252312 AMAQI
5th Aug 2025241 AMAQI
5th Aug 2025222 AMAQI
5th Aug 2025203 AMAQI
5th Aug 2025184 AMAQI
5th Aug 2025245 AMAQI

20°C18/23°C

5th Aug 2025206 AMAQI
5th Aug 2025227 AMAQI
5th Aug 2025228 AMAQI
5th Aug 2025249 AMAQI
5th Aug 20252910 AMAQI
5th Aug 20252911 AMAQI
5th Aug 20252712 PMAQI
5th Aug 2025271 PMAQI
5th Aug 2025232 PMAQI
5th Aug 2025223 PMAQI
5th Aug 2025224 PMAQI
5th Aug 2025235 PMAQI
5th Aug 2025226 PMAQI
5th Aug 2025237 PMAQI
5th Aug 2025238 PMAQI
5th Aug 2025239 PMAQI
5th Aug 20252410 PMAQI
5th Aug 20252411 PMAQI
6th Aug 20252412 AMAQI
6th Aug 2025241 AMAQI
6th Aug 2025262 AMAQI
6th Aug 2025253 AMAQI
6th Aug 2025244 AMAQI
6th Aug 2025265 AMAQI

18°C17/20°C

6th Aug 2025246 AMAQI
6th Aug 2025237 AMAQI
6th Aug 2025248 AMAQI
6th Aug 2025299 AMAQI
6th Aug 20253210 AMAQI
6th Aug 20253311 AMAQI
6th Aug 20253212 PMAQI
6th Aug 2025291 PMAQI
6th Aug 2025302 PMAQI
6th Aug 2025273 PMAQI
6th Aug 2025254 PMAQI
6th Aug 2025275 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 20252512 AMAQI
7th Aug 2025241 AMAQI
7th Aug 2025252 AMAQI
7th Aug 2025263 AMAQI
7th Aug 2025254 AMAQI
7th Aug 2025275 AMAQI

18°C16/20°C

7th Aug 2025306 AMAQI
7th Aug 2025317 AMAQI
7th Aug 2025338 AMAQI
7th Aug 2025379 AMAQI
7th Aug 20253810 AMAQI
7th Aug 20253611 AMAQI
7th Aug 20253112 PMAQI
7th Aug 2025301 PMAQI
7th Aug 2025302 PMAQI
7th Aug 2025283 PMAQI
7th Aug 2025364 PMAQI
7th Aug 2025285 PMAQI
7th Aug 2025286 PMAQI
7th Aug 2025277 PMAQI
7th Aug 2025278 PMAQI
7th Aug 2025289 PMAQI
7th Aug 20252810 PMAQI
7th Aug 20252911 PMAQI
8th Aug 20252812 AMAQI
8th Aug 2025281 AMAQI
8th Aug 2025292 AMAQI
8th Aug 2025303 AMAQI
8th Aug 2025304 AMAQI
8th Aug 2025325 AMAQI

19°C16/22°C

8th Aug 2025306 AMAQI
8th Aug 2025297 AMAQI
8th Aug 2025268 AMAQI
8th Aug 2025269 AMAQI
8th Aug 20253310 AMAQI
8th Aug 20253911 AMAQI
8th Aug 20254212 PMAQI
8th Aug 2025471 PMAQI
8th Aug 2025492 PMAQI
8th Aug 2025463 PMAQI
8th Aug 2025424 PMAQI
8th Aug 2025375 PMAQI
8th Aug 2025356 PMAQI
8th Aug 2025347 PMAQI
8th Aug 2025348 PMAQI
8th Aug 2025339 PMAQI
8th Aug 20253310 PMAQI
8th Aug 20253211 PMAQI
9th Aug 20253212 AMAQI
9th Aug 2025301 AMAQI
9th Aug 2025332 AMAQI
9th Aug 2025363 AMAQI
9th Aug 2025394 AMAQI
9th Aug 2025375 AMAQI

19°C16/21°C

9th Aug 2025356 AMAQI
9th Aug 2025357 AMAQI
9th Aug 2025368 AMAQI
9th Aug 2025329 AMAQI
9th Aug 20253110 AMAQI
9th Aug 20254711 AMAQI
9th Aug 20254912 PMAQI
9th Aug 2025471 PMAQI
9th Aug 2025382 PMAQI
9th Aug 2025353 PMAQI
9th Aug 2025344 PMAQI
9th Aug 2025335 PMAQI
9th Aug 2025316 PMAQI
9th Aug 2025317 PMAQI
9th Aug 2025308 PMAQI
9th Aug 2025319 PMAQI
9th Aug 20253410 PMAQI
9th Aug 20253411 PMAQI
10th Aug 20253812 AMAQI
10th Aug 2025341 AMAQI
10th Aug 2025322 AMAQI
10th Aug 2025283 AMAQI
10th Aug 2025354 AMAQI
10th Aug 2025375 AMAQI

18°C15/22°C

10th Aug 2025446 AMAQI
10th Aug 2025567 AMAQI
10th Aug 2025588 AMAQI
10th Aug 2025619 AMAQI
10th Aug 20255210 AMAQI
10th Aug 20255211 AMAQI
10th Aug 20255012 PMAQI
10th Aug 2025451 PMAQI
10th Aug 2025402 PMAQI
10th Aug 2025403 PMAQI
10th Aug 2025414 PMAQI
10th Aug 2025415 PMAQI
10th Aug 2025406 PMAQI
10th Aug 2025387 PMAQI
10th Aug 2025388 PMAQI
10th Aug 2025399 PMAQI
10th Aug 20253910 PMAQI
10th Aug 20254011 PMAQI
11th Aug 20253912 AMAQI
11th Aug 2025411 AMAQI
11th Aug 2025452 AMAQI
11th Aug 2025483 AMAQI
11th Aug 2025494 AMAQI
11th Aug 2025495 AMAQI

19°C17/21°C

11th Aug 2025526 AMAQI
11th Aug 2025537 AMAQI
11th Aug 2025568 AMAQI
11th Aug 2025529 AMAQI
11th Aug 20255410 AMAQI
11th Aug 20255611 AMAQI
11th Aug 20255612 PMAQI
11th Aug 2025511 PMAQI
11th Aug 2025492 PMAQI
11th Aug 2025513 PMAQI
11th Aug 2025504 PMAQI
11th Aug 2025515 PMAQI
11th Aug 2025466 PMAQI
11th Aug 2025447 PMAQI
11th Aug 2025498 PMAQI
11th Aug 2025519 PMAQI
11th Aug 20255010 PMAQI
11th Aug 20255111 PMAQI
12th Aug 20255212 AMAQI
12th Aug 2025511 AMAQI
12th Aug 2025472 AMAQI
12th Aug 2025463 AMAQI
12th Aug 2025544 AMAQI
12th Aug 2025435 AMAQI

20°C16/24°C

12th Aug 2025506 AMAQI
12th Aug 2025517 AMAQI
12th Aug 2025488 AMAQI
12th Aug 2025499 AMAQI
12th Aug 20255810 AMAQI
12th Aug 20255611 AMAQI
12th Aug 20255312 PMAQI
12th Aug 2025491 PMAQI
12th Aug 2025492 PMAQI
12th Aug 2025473 PMAQI
12th Aug 2025494 PMAQI
12th Aug 2025525 PMAQI
12th Aug 2025506 PMAQI
12th Aug 2025497 PMAQI
12th Aug 2025518 PMAQI
12th Aug 2025519 PMAQI
12th Aug 20254910 PMAQI
12th Aug 20255011 PMAQI
13th Aug 20255012 AMAQI
13th Aug 2025491 AMAQI
13th Aug 2025542 AMAQI
13th Aug 2025643 AMAQI
13th Aug 2025584 AMAQI
13th Aug 2025605 AMAQI

23°C19/27°C

13th Aug 2025626 AMAQI
13th Aug 2025637 AMAQI
13th Aug 2025588 AMAQI
13th Aug 2025609 AMAQI
13th Aug 20255710 AMAQI
13th Aug 20255711 AMAQI
13th Aug 20256012 PMAQI
13th Aug 2025601 PMAQI
13th Aug 2025562 PMAQI
13th Aug 2025593 PMAQI
13th Aug 2025594 PMAQI
13th Aug 2025585 PMAQI
13th Aug 2025606 PMAQI
13th Aug 2025587 PMAQI
13th Aug 2025588 PMAQI
13th Aug 2025579 PMAQI
13th Aug 20255810 PMAQI
13th Aug 20255611 PMAQI
14th Aug 20255712 AMAQI
14th Aug 2025571 AMAQI
14th Aug 2025582 AMAQI
14th Aug 2025583 AMAQI
14th Aug 2025614 AMAQI
14th Aug 2025595 AMAQI

22°C18/27°C

14th Aug 2025586 AMAQI
14th Aug 2025567 AMAQI
14th Aug 2025578 AMAQI
14th Aug 2025589 AMAQI
14th Aug 20255810 AMAQI
14th Aug 20255611 AMAQI
14th Aug 20255012 PMAQI
14th Aug 2025541 PMAQI
14th Aug 2025552 PMAQI
14th Aug 2025553 PMAQI
14th Aug 2025564 PMAQI
14th Aug 2025565 PMAQI
14th Aug 2025566 PMAQI
14th Aug 2025557 PMAQI
14th Aug 2025548 PMAQI
14th Aug 2025569 PMAQI
14th Aug 20255710 PMAQI
14th Aug 20255711 PMAQI
15th Aug 20255812 AMAQI
15th Aug 2025571 AMAQI
15th Aug 2025502 AMAQI
15th Aug 2025293 AMAQI
15th Aug 2025304 AMAQI
15th Aug 2025365 AMAQI

21°C18/24°C

15th Aug 2025336 AMAQI
15th Aug 2025317 AMAQI
15th Aug 2025328 AMAQI
15th Aug 2025339 AMAQI
15th Aug 20253510 AMAQI
15th Aug 20253811 AMAQI
15th Aug 20253212 PMAQI
15th Aug 2025311 PMAQI
15th Aug 2025332 PMAQI
15th Aug 2025323 PMAQI
15th Aug 2025354 PMAQI
15th Aug 2025375 PMAQI
15th Aug 2025356 PMAQI
15th Aug 2025397 PMAQI
15th Aug 2025348 PMAQI
15th Aug 2025409 PMAQI
15th Aug 20254010 PMAQI
15th Aug 20254111 PMAQI
16th Aug 20254012 AMAQI
16th Aug 2025421 AMAQI
16th Aug 2025502 AMAQI
16th Aug 2025513 AMAQI
16th Aug 2025454 AMAQI
16th Aug 2025515 AMAQI

20°C18/23°C

16th Aug 2025476 AMAQI
16th Aug 2025437 AMAQI
16th Aug 2025468 AMAQI
16th Aug 2025479 AMAQI
16th Aug 20254610 AMAQI
16th Aug 20254111 AMAQI
16th Aug 20254412 PMAQI
16th Aug 2025481 PMAQI
16th Aug 2025482 PMAQI
16th Aug 2025453 PMAQI
16th Aug 2025454 PMAQI
16th Aug 2025485 PMAQI
16th Aug 2025466 PMAQI
16th Aug 2025447 PMAQI
16th Aug 2025478 PMAQI
16th Aug 2025469 PMAQI
16th Aug 20254710 PMAQI
16th Aug 20254411 PMAQI
17th Aug 20254612 AMAQI
17th Aug 2025461 AMAQI
17th Aug 2025372 AMAQI
17th Aug 2025343 AMAQI
17th Aug 2025304 AMAQI
17th Aug 2025355 AMAQI

19°C17/20°C

17th Aug 2025346 AMAQI
17th Aug 2025287 AMAQI
17th Aug 2025298 AMAQI
17th Aug 2025279 AMAQI
17th Aug 20253010 AMAQI
17th Aug 20252711 AMAQI
17th Aug 20252612 PMAQI
17th Aug 2025281 PMAQI
17th Aug 2025322 PMAQI
17th Aug 2025363 PMAQI
17th Aug 2025304 PMAQI
17th Aug 2025335 PMAQI
17th Aug 2025346 PMAQI
17th Aug 2025347 PMAQI
17th Aug 2025308 PMAQI
17th Aug 2025329 PMAQI
17th Aug 20253310 PMAQI
17th Aug 20253411 PMAQI
18th Aug 20253312 AMAQI
18th Aug 2025331 AMAQI
18th Aug 2025292 AMAQI
18th Aug 2025243 AMAQI
18th Aug 2025184 AMAQI
18th Aug 2025205 AMAQI

18°C15/20°C

18th Aug 2025236 AMAQI
18th Aug 2025237 AMAQI
18th Aug 2025218 AMAQI
18th Aug 2025249 AMAQI
18th Aug 20252610 AMAQI
18th Aug 20252911 AMAQI
18th Aug 20253012 PMAQI
18th Aug 2025311 PMAQI
18th Aug 2025292 PMAQI
18th Aug 2025273 PMAQI
18th Aug 2025294 PMAQI
18th Aug 2025255 PMAQI
18th Aug 2025276 PMAQI
18th Aug 2025267 PMAQI
18th Aug 2025258 PMAQI
18th Aug 2025269 PMAQI
18th Aug 20252610 PMAQI
18th Aug 20252811 PMAQI
19th Aug 20252712 AMAQI
19th Aug 2025271 AMAQI
19th Aug 2025222 AMAQI
19th Aug 2025233 AMAQI
19th Aug 2025254 AMAQI
19th Aug 2025215 AMAQI

19°C18/21°C

19th Aug 2025246 AMAQI
19th Aug 2025237 AMAQI
19th Aug 2025358 AMAQI
19th Aug 2025349 AMAQI
19th Aug 20253610 AMAQI
19th Aug 20253611 AMAQI
19th Aug 20254012 PMAQI
19th Aug 2025301 PMAQI
19th Aug 2025282 PMAQI
19th Aug 2025283 PMAQI
19th Aug 2025264 PMAQI
19th Aug 2025315 PMAQI
19th Aug 2025296 PMAQI
19th Aug 2025257 PMAQI
19th Aug 2025328 PMAQI
19th Aug 2025269 PMAQI
19th Aug 20252610 PMAQI
19th Aug 20252511 PMAQI
20th Aug 20252512 AMAQI
20th Aug 2025271 AMAQI
20th Aug 2025282 AMAQI
20th Aug 2025223 AMAQI
20th Aug 2025254 AMAQI
20th Aug 2025275 AMAQI

19°C16/22°C

20th Aug 2025296 AMAQI
20th Aug 2025287 AMAQI
20th Aug 2025288 AMAQI
20th Aug 2025309 AMAQI
20th Aug 20252910 AMAQI
20th Aug 20253511 AMAQI
20th Aug 20253412 PMAQI
20th Aug 2025321 PMAQI
20th Aug 2025262 PMAQI
20th Aug 2025303 PMAQI
20th Aug 2025314 PMAQI
20th Aug 2025305 PMAQI
20th Aug 2025316 PMAQI
20th Aug 2025297 PMAQI
20th Aug 2025318 PMAQI
20th Aug 2025289 PMAQI
20th Aug 20252810 PMAQI
20th Aug 20252711 PMAQI
21st Aug 20252812 AMAQI
21st Aug 2025281 AMAQI
21st Aug 2025272 AMAQI
21st Aug 2025283 AMAQI
21st Aug 2025244 AMAQI
21st Aug 2025245 AMAQI

18°C18/19°C

21st Aug 2025206 AMAQI
6 AM
21st Aug 2025237 AMAQI
21st Aug 2025228 AMAQI
21st Aug 2025219 AMAQI
21st Aug 20252710 AMAQI
21st Aug 20252511 AMAQI
21st Aug 20252312 PMAQI
21st Aug 2025241 PMAQI
1 PM
21st Aug 2025232 PMAQI
21st Aug 2025253 PMAQI
21st Aug 2025264 PMAQI
21st Aug 2025275 PMAQI
21st Aug 2025266 PMAQI
21st Aug 2025277 PMAQI
9 PM
1 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 6 PM

35AQI

13 hours / Day
390 hours / Month
Avg. Lowest Time
7 PM

32AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 6 PM (Avg. 35), while the lowest AQI was between 7 PM to 7 PM (Avg. 32).
Night time
Avg. Highest Time
12 AM - 2 AM

33AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM - 4 AM

32AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 2 AM (Avg. 33), while the lowest AQI was between 3 AM to 4 AM (Avg. 32).

2025 Days Vs Air Quality

Grande Synthe, Hauts De France, France

2025

67%

155

29%

67

4%

10

Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)

Good
155 Days
Moderate
67 Days
Poor
10 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 67%

Health Risk Level:

Moderate

In 2025, 67% of 233 days were within WHO’s safe air quality limits, and 33% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.

Annual Air Quality Insights

Grande Synthe, 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
34AQI
2nd January 2025
28AQI
3rd January 2025
31AQI
4th January 2025
51AQI
5th January 2025
36AQI
6th January 2025
26AQI
7th January 2025
26AQI
8th January 2025
38AQI
9th January 2025
31AQI
10th January 2025
63AQI
11th January 2025
78AQI
12th January 2025
56AQI
13th January 2025
88AQI
14th January 2025
88AQI
15th January 2025
81AQI
16th January 2025
75AQI
17th January 2025
79AQI
18th January 2025
76AQI
19th January 2025
82AQI
20th January 2025
101AQI
21st January 2025
85AQI
22nd January 2025
96AQI
23rd January 2025
58AQI
24th January 2025
42AQI
25th January 2025
37AQI
26th January 2025
33AQI
27th January 2025
30AQI
28th January 2025
31AQI
29th January 2025
30AQI
30th January 2025
31AQI
31st January 2025
38AQI
1st February 2025
63AQI
2nd February 2025
82AQI
3rd February 2025
97AQI
4th February 2025
73AQI
5th February 2025
65AQI
6th February 2025
58AQI
7th February 2025
56AQI
8th February 2025
67AQI
9th February 2025
49AQI
10th February 2025
117AQI
11th February 2025
120AQI
12th February 2025
77AQI
13th February 2025
79AQI
14th February 2025
102AQI
15th February 2025
103AQI
16th February 2025
78AQI
17th February 2025
75AQI
18th February 2025
84AQI
19th February 2025
89AQI
20th February 2025
75AQI
21st February 2025
57AQI
22nd February 2025
53AQI
23rd February 2025
47AQI
24th February 2025
31AQI
25th February 2025
47AQI
26th February 2025
37AQI
27th February 2025
29AQI
28th February 2025
39AQI
1st March 2025
38AQI
2nd March 2025
76AQI
3rd March 2025
114AQI
4th March 2025
127AQI
5th March 2025
126AQI
6th March 2025
96AQI
7th March 2025
58AQI
8th March 2025
69AQI
9th March 2025
91AQI
10th March 2025
139AQI
11th March 2025
82AQI
12th March 2025
43AQI
13th March 2025
30AQI
14th March 2025
31AQI
15th March 2025
40AQI
16th March 2025
44AQI
17th March 2025
40AQI
18th March 2025
45AQI
19th March 2025
78AQI
20th March 2025
79AQI
21st March 2025
61AQI
22nd March 2025
48AQI
23rd March 2025
45AQI
24th March 2025
92AQI
25th March 2025
107AQI
26th March 2025
53AQI
27th March 2025
66AQI
28th March 2025
54AQI
29th March 2025
37AQI
30th March 2025
41AQI
31st March 2025
30AQI
1st April 2025
45AQI
2nd April 2025
51AQI
3rd April 2025
56AQI
4th April 2025
71AQI
5th April 2025
64AQI
6th April 2025
41AQI
7th April 2025
37AQI
8th April 2025
55AQI
9th April 2025
35AQI
10th April 2025
28AQI
11th April 2025
58AQI
12th April 2025
72AQI
13th April 2025
46AQI
14th April 2025
33AQI
15th April 2025
54AQI
16th April 2025
21AQI
17th April 2025
41AQI
18th April 2025
41AQI
19th April 2025
47AQI
20th April 2025
45AQI
21st April 2025
64AQI
22nd April 2025
45AQI
23rd April 2025
23AQI
24th April 2025
58AQI
25th April 2025
45AQI
26th April 2025
63AQI
27th April 2025
51AQI
28th April 2025
53AQI
29th April 2025
62AQI
30th April 2025
62AQI
1st May 2025
78AQI
2nd May 2025
71AQI
3rd May 2025
51AQI
4th May 2025
24AQI
5th May 2025
27AQI
6th May 2025
23AQI
7th May 2025
26AQI
8th May 2025
37AQI
9th May 2025
35AQI
10th May 2025
39AQI
11th May 2025
34AQI
12th May 2025
40AQI
13th May 2025
50AQI
14th May 2025
55AQI
15th May 2025
49AQI
16th May 2025
42AQI
17th May 2025
40AQI
18th May 2025
46AQI
19th May 2025
45AQI
20th May 2025
35AQI
21st May 2025
50AQI
22nd May 2025
37AQI
23rd May 2025
30AQI
24th May 2025
30AQI
25th May 2025
27AQI
26th May 2025
34AQI
27th May 2025
25AQI
28th May 2025
29AQI
29th May 2025
33AQI
30th May 2025
22AQI
31st May 2025
34AQI
1st June 2025
36AQI
2nd June 2025
29AQI
3rd June 2025
26AQI
4th June 2025
22AQI
5th June 2025
20AQI
6th June 2025
23AQI
7th June 2025
19AQI
8th June 2025
21AQI
9th June 2025
50AQI
10th June 2025
52AQI
11th June 2025
43AQI
12th June 2025
49AQI
13th June 2025
56AQI
14th June 2025
50AQI
15th June 2025
36AQI
16th June 2025
38AQI
17th June 2025
38AQI
18th June 2025
39AQI
19th June 2025
44AQI
20th June 2025
44AQI
21st June 2025
39AQI
22nd June 2025
36AQI
23rd June 2025
30AQI
24th June 2025
32AQI
25th June 2025
27AQI
26th June 2025
29AQI
27th June 2025
29AQI
28th June 2025
20AQI
29th June 2025
22AQI
30th June 2025
33AQI
1st July 2025
48AQI
2nd July 2025
50AQI
3rd July 2025
32AQI
4th July 2025
26AQI
5th July 2025
24AQI
6th July 2025
19AQI
7th July 2025
22AQI
8th July 2025
28AQI
9th July 2025
31AQI
10th July 2025
32AQI
11th July 2025
30AQI
12th July 2025
25AQI
13th July 2025
30AQI
14th July 2025
46AQI
15th July 2025
37AQI
16th July 2025
35AQI
17th July 2025
35AQI
18th July 2025
38AQI
19th July 2025
43AQI
20th July 2025
26AQI
21st July 2025
21AQI
22nd July 2025
22AQI
23rd July 2025
26AQI
24th July 2025
39AQI
25th July 2025
31AQI
26th July 2025
46AQI
27th July 2025
30AQI
28th July 2025
31AQI
29th July 2025
40AQI
30th July 2025
34AQI
31st July 2025
27AQI
1st August 2025
22AQI
2nd August 2025
21AQI
3rd August 2025
23AQI
4th August 2025
24AQI
5th August 2025
23AQI
6th August 2025
26AQI
7th August 2025
29AQI
8th August 2025
34AQI
9th August 2025
35AQI
10th August 2025
41AQI
11th August 2025
49AQI
12th August 2025
50AQI
13th August 2025
58AQI
14th August 2025
56AQI
15th August 2025
38AQI
16th August 2025
46AQI
17th August 2025
34AQI
18th August 2025
27AQI
19th August 2025
28AQI
20th August 2025
28AQI
21st August 2025
22nd August 2025
23rd August 2025
24th August 2025
25th August 2025
26th August 2025
27th August 2025
28th August 2025
29th August 2025
30th August 2025
31st August 2025
1st September 2025
2nd September 2025
3rd September 2025
4th September 2025
5th September 2025
6th September 2025
7th September 2025
8th September 2025
9th September 2025
10th September 2025
11th September 2025
12th September 2025
13th September 2025
14th September 2025
15th September 2025
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

54AQI

70AQI

67AQI

49AQI

39AQI

34AQI

32AQI

35AQI

No. of days

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

202548AQI

16
14
1
7
17
4
13
13
5
15
15
27
4
28
2
31
18
2
155
67
10

Highest AQI recorded in

February

70AQI

Lowest AQI recorded in

July

32AQI

202440AQI

20
11
26
3
22
9
30
20
11
26
4
30
1
28
3
23
6
1
27
4
17
13
24
7
293
72
1

Highest AQI recorded in

November

49AQI

Lowest AQI recorded in

July

31AQI

202342AQI

23
7
1
14
9
4
1
27
4
15
15
16
15
18
12
27
2
29
2
21
8
1
28
3
26
2
1
23
8
267
87
7
1

Highest AQI recorded in

February

64AQI

Lowest AQI recorded in

August

31AQI

202242AQI

20
10
1
19
2
7
17
5
1
17
13
25
5
23
1
24
1
4
27
2
31
24
6
15
15
1
236
72
7
1

Highest AQI recorded in

March

75AQI

Lowest AQI recorded in

August

27AQI

202140AQI

18
22
6
22
8
1
25
3
28
3
15
7
3
4
27
4
31
15
13
27
4
24
6
24
7
278
61
4
4

Highest AQI recorded in

June

69AQI

Lowest AQI recorded in

January

26AQI

202027AQI

13
20
1
18
30
31
28
3
28
30
21
9
16
2
235
15

Highest AQI recorded in

November

38AQI

Lowest AQI recorded in

July

18AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
48AQI
Least Polluted Year Recorded
2020(Avg.)
27AQI

Grande Synthe's annual 2025 AQI (48) shows an average percentage change of 28.7% (worsened AQI) compared to previous years: 2020 (27), 2021 (40), 2022 (42), 2023 (42), 2024 (40).