Great Synthe, 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
Great Synthe, 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
83AQILowest AQI recorded on
2nd Aug 2022
17AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 21 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Great Synthe, Grande Synthe, Hauts De France, France
AQI
Day
Night
.
5 AM3rd Aug 2025
9 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
6PM3rd Aug
28AQI
Avg. Lowest Time
2PM3rd Aug
22AQI
In the last 24 hours,
Great Synthe's AQI reached its highest point of 28 at 6 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Great Synthe, Grande Synthe, Hauts De France, France
JulAug
05th - 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 - 04th04th
Day
Night
5th Jul 2025205 AMAQI
5th Jul 2025236 AMAQI
5th Jul 2025267 AMAQI
5th Jul 2025308 AMAQI
5th Jul 2025269 AMAQI
5th Jul 20252710 AMAQI
5th Jul 20252511 AMAQI
5th Jul 20252812 PMAQI
5th Jul 2025251 PMAQI
5th Jul 2025262 PMAQI
5th Jul 2025263 PMAQI
5th Jul 2025284 PMAQI
5th Jul 2025295 PMAQI
5th Jul 2025286 PMAQI
5th Jul 2025277 PMAQI
5th Jul 2025268 PMAQI
5th Jul 2025239 PMAQI
5th Jul 20252410 PMAQI
5th Jul 20252211 PMAQI
6th Jul 20252412 AMAQI
6th Jul 2025221 AMAQI
6th Jul 2025212 AMAQI
6th Jul 2025183 AMAQI
6th Jul 2025164 AMAQI
17°C16/20°C
6th Jul 2025155 AMAQI
6th Jul 2025166 AMAQI
6th Jul 2025167 AMAQI
6th Jul 2025158 AMAQI
6th Jul 2025149 AMAQI
6th Jul 20251510 AMAQI
6th Jul 20251311 AMAQI
6th Jul 20251412 PMAQI
6th Jul 2025151 PMAQI
6th Jul 2025172 PMAQI
6th Jul 2025183 PMAQI
6th Jul 2025194 PMAQI
6th Jul 2025225 PMAQI
6th Jul 2025226 PMAQI
6th Jul 2025247 PMAQI
6th Jul 2025238 PMAQI
6th Jul 2025209 PMAQI
6th Jul 20251810 PMAQI
6th Jul 20251811 PMAQI
7th Jul 20251812 AMAQI
7th Jul 2025181 AMAQI
7th Jul 2025192 AMAQI
7th Jul 2025173 AMAQI
7th Jul 2025184 AMAQI
17°C16/19°C
7th Jul 2025205 AMAQI
7th Jul 2025256 AMAQI
7th Jul 2025267 AMAQI
7th Jul 2025178 AMAQI
7th Jul 2025209 AMAQI
7th Jul 20252410 AMAQI
7th Jul 20252311 AMAQI
7th Jul 20252412 PMAQI
7th Jul 2025221 PMAQI
7th Jul 2025232 PMAQI
7th Jul 2025213 PMAQI
7th Jul 2025224 PMAQI
7th Jul 2025235 PMAQI
7th Jul 2025226 PMAQI
7th Jul 2025217 PMAQI
7th Jul 2025228 PMAQI
7th Jul 2025219 PMAQI
7th Jul 20252010 PMAQI
7th Jul 20252111 PMAQI
8th Jul 20252012 AMAQI
8th Jul 2025201 AMAQI
8th Jul 2025232 AMAQI
8th Jul 2025283 AMAQI
8th Jul 2025324 AMAQI
16°C14/17°C
8th Jul 2025285 AMAQI
8th Jul 2025266 AMAQI
8th Jul 2025267 AMAQI
8th Jul 2025268 AMAQI
8th Jul 2025329 AMAQI
8th Jul 20253210 AMAQI
8th Jul 20253611 AMAQI
8th Jul 20253712 PMAQI
8th Jul 2025321 PMAQI
8th Jul 2025322 PMAQI
8th Jul 2025323 PMAQI
8th Jul 2025314 PMAQI
8th Jul 2025305 PMAQI
8th Jul 2025306 PMAQI
8th Jul 2025307 PMAQI
8th Jul 2025288 PMAQI
8th Jul 2025289 PMAQI
8th Jul 20252810 PMAQI
8th Jul 20252811 PMAQI
9th Jul 20252812 AMAQI
9th Jul 2025281 AMAQI
9th Jul 2025272 AMAQI
9th Jul 2025263 AMAQI
9th Jul 2025264 AMAQI
16°C13/18°C
9th Jul 2025265 AMAQI
9th Jul 2025286 AMAQI
9th Jul 2025267 AMAQI
9th Jul 2025298 AMAQI
9th Jul 2025339 AMAQI
9th Jul 20253710 AMAQI
9th Jul 20253811 AMAQI
9th Jul 20254512 PMAQI
9th Jul 2025421 PMAQI
9th Jul 2025312 PMAQI
9th Jul 2025313 PMAQI
9th Jul 2025304 PMAQI
9th Jul 2025325 PMAQI
9th Jul 2025316 PMAQI
9th Jul 2025287 PMAQI
9th Jul 2025318 PMAQI
9th Jul 2025299 PMAQI
9th Jul 20252710 PMAQI
9th Jul 20252711 PMAQI
10th Jul 20252812 AMAQI
10th Jul 2025291 AMAQI
10th Jul 2025282 AMAQI
10th Jul 2025223 AMAQI
10th Jul 2025244 AMAQI
18°C14/21°C
10th Jul 2025265 AMAQI
10th Jul 2025266 AMAQI
10th Jul 2025287 AMAQI
10th Jul 2025328 AMAQI
10th Jul 2025339 AMAQI
10th Jul 20253410 AMAQI
10th Jul 20253511 AMAQI
10th Jul 20253412 PMAQI
10th Jul 2025341 PMAQI
10th Jul 2025302 PMAQI
10th Jul 2025313 PMAQI
10th Jul 2025334 PMAQI
10th Jul 2025355 PMAQI
10th Jul 2025446 PMAQI
10th Jul 2025387 PMAQI
10th Jul 2025368 PMAQI
10th Jul 2025309 PMAQI
10th Jul 20252610 PMAQI
10th Jul 20252811 PMAQI
11th Jul 20252712 AMAQI
11th Jul 2025281 AMAQI
11th Jul 2025262 AMAQI
11th Jul 2025213 AMAQI
11th Jul 2025234 AMAQI
19°C16/22°C
11th Jul 2025285 AMAQI
11th Jul 2025336 AMAQI
11th Jul 2025327 AMAQI
11th Jul 2025408 AMAQI
11th Jul 2025439 AMAQI
11th Jul 20254010 AMAQI
11th Jul 20254011 AMAQI
11th Jul 20252712 PMAQI
11th Jul 2025261 PMAQI
11th Jul 2025282 PMAQI
11th Jul 2025263 PMAQI
11th Jul 2025284 PMAQI
11th Jul 2025245 PMAQI
11th Jul 2025246 PMAQI
11th Jul 2025247 PMAQI
11th Jul 2025248 PMAQI
11th Jul 2025269 PMAQI
11th Jul 20252810 PMAQI
11th Jul 20252811 PMAQI
12th Jul 20252812 AMAQI
12th Jul 2025281 AMAQI
12th Jul 2025262 AMAQI
12th Jul 2025243 AMAQI
12th Jul 2025204 AMAQI
19°C16/21°C
12th Jul 2025215 AMAQI
12th Jul 2025216 AMAQI
12th Jul 2025227 AMAQI
12th Jul 2025218 AMAQI
12th Jul 2025269 AMAQI
12th Jul 20252410 AMAQI
12th Jul 20252011 AMAQI
12th Jul 20252012 PMAQI
12th Jul 2025221 PMAQI
12th Jul 2025232 PMAQI
12th Jul 2025233 PMAQI
12th Jul 2025224 PMAQI
12th Jul 2025235 PMAQI
12th Jul 2025236 PMAQI
12th Jul 2025257 PMAQI
12th Jul 2025238 PMAQI
12th Jul 2025249 PMAQI
12th Jul 20252410 PMAQI
12th Jul 20252311 PMAQI
13th Jul 20252412 AMAQI
13th Jul 2025231 AMAQI
13th Jul 2025252 AMAQI
13th Jul 2025263 AMAQI
13th Jul 2025244 AMAQI
19°C17/20°C
13th Jul 2025245 AMAQI
13th Jul 2025226 AMAQI
13th Jul 2025247 AMAQI
13th Jul 2025278 AMAQI
13th Jul 2025289 AMAQI
13th Jul 20253210 AMAQI
13th Jul 20253111 AMAQI
13th Jul 20253412 PMAQI
13th Jul 2025351 PMAQI
13th Jul 2025352 PMAQI
13th Jul 2025363 PMAQI
13th Jul 2025344 PMAQI
13th Jul 2025375 PMAQI
13th Jul 2025386 PMAQI
13th Jul 2025387 PMAQI
13th Jul 2025398 PMAQI
13th Jul 2025369 PMAQI
13th Jul 20252710 PMAQI
13th Jul 20252711 PMAQI
14th Jul 20252812 AMAQI
14th Jul 2025281 AMAQI
14th Jul 2025482 AMAQI
14th Jul 2025583 AMAQI
14th Jul 2025594 AMAQI
19°C16/21°C
14th Jul 2025605 AMAQI
14th Jul 2025716 AMAQI
14th Jul 2025677 AMAQI
14th Jul 2025578 AMAQI
14th Jul 2025479 AMAQI
14th Jul 20255510 AMAQI
14th Jul 20255211 AMAQI
14th Jul 20254512 PMAQI
14th Jul 2025481 PMAQI
14th Jul 2025492 PMAQI
14th Jul 2025483 PMAQI
14th Jul 2025474 PMAQI
14th Jul 2025475 PMAQI
14th Jul 2025456 PMAQI
14th Jul 2025427 PMAQI
14th Jul 2025408 PMAQI
14th Jul 2025469 PMAQI
14th Jul 20255210 PMAQI
14th Jul 20255211 PMAQI
15th Jul 20255212 AMAQI
15th Jul 2025531 AMAQI
15th Jul 2025402 AMAQI
15th Jul 2025393 AMAQI
15th Jul 2025304 AMAQI
19°C17/22°C
15th Jul 2025285 AMAQI
15th Jul 2025306 AMAQI
15th Jul 2025297 AMAQI
15th Jul 2025298 AMAQI
15th Jul 2025309 AMAQI
15th Jul 20253010 AMAQI
15th Jul 20252811 AMAQI
15th Jul 20252912 PMAQI
15th Jul 2025321 PMAQI
15th Jul 2025342 PMAQI
15th Jul 2025323 PMAQI
15th Jul 2025354 PMAQI
15th Jul 2025365 PMAQI
15th Jul 2025366 PMAQI
15th Jul 2025387 PMAQI
15th Jul 2025378 PMAQI
15th Jul 2025379 PMAQI
15th Jul 20253510 PMAQI
15th Jul 20253611 PMAQI
16th Jul 20253612 AMAQI
16th Jul 2025331 AMAQI
16th Jul 2025312 AMAQI
16th Jul 2025303 AMAQI
16th Jul 2025364 AMAQI
18°C15/21°C
16th Jul 2025465 AMAQI
16th Jul 2025496 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025398 AMAQI
16th Jul 2025359 AMAQI
16th Jul 20253410 AMAQI
16th Jul 20253211 AMAQI
16th Jul 20252812 PMAQI
16th Jul 2025301 PMAQI
16th Jul 2025332 PMAQI
16th Jul 2025323 PMAQI
16th Jul 2025354 PMAQI
16th Jul 2025355 PMAQI
16th Jul 2025346 PMAQI
16th Jul 2025327 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025349 PMAQI
16th Jul 20253610 PMAQI
16th Jul 20253511 PMAQI
17th Jul 20253812 AMAQI
17th Jul 2025371 AMAQI
17th Jul 2025322 AMAQI
17th Jul 2025363 AMAQI
17th Jul 2025324 AMAQI
18°C16/20°C
17th Jul 2025305 AMAQI
17th Jul 2025286 AMAQI
17th Jul 2025307 AMAQI
17th Jul 2025358 AMAQI
17th Jul 2025369 AMAQI
17th Jul 20253310 AMAQI
17th Jul 20253011 AMAQI
17th Jul 20252912 PMAQI
17th Jul 2025281 PMAQI
17th Jul 2025362 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025384 PMAQI
17th Jul 2025455 PMAQI
17th Jul 2025506 PMAQI
17th Jul 2025457 PMAQI
17th Jul 2025428 PMAQI
17th Jul 2025389 PMAQI
17th Jul 20253210 PMAQI
17th Jul 20253211 PMAQI
18th Jul 20253312 AMAQI
18th Jul 2025331 AMAQI
18th Jul 2025462 AMAQI
18th Jul 2025523 AMAQI
18th Jul 2025544 AMAQI
19°C16/22°C
18th Jul 2025525 AMAQI
18th Jul 2025446 AMAQI
18th Jul 2025317 AMAQI
18th Jul 2025298 AMAQI
18th Jul 2025389 AMAQI
18th Jul 20254110 AMAQI
18th Jul 20253711 AMAQI
18th Jul 20254012 PMAQI
18th Jul 2025531 PMAQI
18th Jul 2025522 PMAQI
18th Jul 2025403 PMAQI
18th Jul 2025404 PMAQI
18th Jul 2025435 PMAQI
18th Jul 2025366 PMAQI
18th Jul 2025327 PMAQI
18th Jul 2025338 PMAQI
18th Jul 2025369 PMAQI
18th Jul 20253910 PMAQI
18th Jul 20253911 PMAQI
19th Jul 20254012 AMAQI
19th Jul 2025411 AMAQI
19th Jul 2025382 AMAQI
19th Jul 2025423 AMAQI
19th Jul 2025444 AMAQI
21°C17/23°C
19th Jul 2025425 AMAQI
19th Jul 2025446 AMAQI
19th Jul 2025407 AMAQI
19th Jul 2025428 AMAQI
19th Jul 2025429 AMAQI
19th Jul 20253710 AMAQI
19th Jul 20253611 AMAQI
19th Jul 20254012 PMAQI
19th Jul 2025401 PMAQI
19th Jul 2025412 PMAQI
19th Jul 2025413 PMAQI
19th Jul 2025374 PMAQI
19th Jul 2025425 PMAQI
19th Jul 2025516 PMAQI
19th Jul 2025507 PMAQI
19th Jul 2025468 PMAQI
19th Jul 2025419 PMAQI
19th Jul 20254010 PMAQI
19th Jul 20254011 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025411 AMAQI
20th Jul 2025312 AMAQI
20th Jul 2025213 AMAQI
20th Jul 2025224 AMAQI
21°C17/27°C
20th Jul 2025225 AMAQI
20th Jul 2025236 AMAQI
20th Jul 2025267 AMAQI
20th Jul 2025268 AMAQI
20th Jul 2025229 AMAQI
20th Jul 20251810 AMAQI
20th Jul 20251611 AMAQI
20th Jul 20251812 PMAQI
20th Jul 2025211 PMAQI
20th Jul 2025232 PMAQI
20th Jul 2025223 PMAQI
20th Jul 2025214 PMAQI
20th Jul 2025205 PMAQI
20th Jul 2025206 PMAQI
20th Jul 2025247 PMAQI
20th Jul 2025228 PMAQI
20th Jul 2025249 PMAQI
20th Jul 20252510 PMAQI
20th Jul 20252611 PMAQI
21st Jul 20252612 AMAQI
21st Jul 2025261 AMAQI
21st Jul 2025222 AMAQI
21st Jul 2025183 AMAQI
21st Jul 2025194 AMAQI
18°C17/21°C
21st Jul 2025205 AMAQI
21st Jul 2025196 AMAQI
21st Jul 2025207 AMAQI
21st Jul 2025218 AMAQI
21st Jul 2025209 AMAQI
21st Jul 20252010 AMAQI
21st Jul 20251911 AMAQI
21st Jul 20251612 PMAQI
21st Jul 2025181 PMAQI
21st Jul 2025182 PMAQI
21st Jul 2025183 PMAQI
21st Jul 2025174 PMAQI
21st Jul 2025185 PMAQI
21st Jul 2025176 PMAQI
21st Jul 2025187 PMAQI
21st Jul 2025198 PMAQI
21st Jul 2025219 PMAQI
21st Jul 20252110 PMAQI
21st Jul 20252111 PMAQI
22nd Jul 20252012 AMAQI
22nd Jul 2025211 AMAQI
22nd Jul 2025222 AMAQI
22nd Jul 2025203 AMAQI
22nd Jul 2025184 AMAQI
17°C14/20°C
22nd Jul 2025185 AMAQI
22nd Jul 2025196 AMAQI
22nd Jul 2025187 AMAQI
22nd Jul 2025198 AMAQI
22nd Jul 2025209 AMAQI
22nd Jul 20252010 AMAQI
22nd Jul 20252011 AMAQI
22nd Jul 20252012 PMAQI
22nd Jul 2025211 PMAQI
22nd Jul 2025212 PMAQI
22nd Jul 2025193 PMAQI
22nd Jul 2025214 PMAQI
22nd Jul 2025225 PMAQI
22nd Jul 2025266 PMAQI
22nd Jul 2025237 PMAQI
22nd Jul 2025228 PMAQI
22nd Jul 2025219 PMAQI
22nd Jul 20252010 PMAQI
22nd Jul 20252011 PMAQI
23rd Jul 20252012 AMAQI
23rd Jul 2025201 AMAQI
23rd Jul 2025222 AMAQI
23rd Jul 2025223 AMAQI
23rd Jul 2025204 AMAQI
18°C15/22°C
23rd Jul 2025195 AMAQI
23rd Jul 2025386 AMAQI
23rd Jul 2025237 AMAQI
23rd Jul 2025238 AMAQI
23rd Jul 2025249 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 2025265 PMAQI
23rd Jul 2025286 PMAQI
23rd Jul 2025257 PMAQI
23rd Jul 2025308 PMAQI
23rd Jul 2025279 PMAQI
23rd Jul 20252410 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252412 AMAQI
24th Jul 2025241 AMAQI
24th Jul 2025362 AMAQI
24th Jul 2025403 AMAQI
24th Jul 2025494 AMAQI
18°C16/20°C
24th Jul 2025555 AMAQI
24th Jul 2025546 AMAQI
24th Jul 2025407 AMAQI
24th Jul 2025418 AMAQI
24th Jul 2025449 AMAQI
24th Jul 20255010 AMAQI
24th Jul 20254111 AMAQI
24th Jul 20253812 PMAQI
24th Jul 2025461 PMAQI
24th Jul 2025382 PMAQI
24th Jul 2025403 PMAQI
24th Jul 2025404 PMAQI
24th Jul 2025405 PMAQI
24th Jul 2025346 PMAQI
24th Jul 2025307 PMAQI
24th Jul 2025288 PMAQI
24th Jul 2025369 PMAQI
24th Jul 20253810 PMAQI
24th Jul 20253711 PMAQI
25th Jul 20253812 AMAQI
25th Jul 2025391 AMAQI
25th Jul 2025262 AMAQI
25th Jul 2025233 AMAQI
25th Jul 2025264 AMAQI
18°C16/20°C
25th Jul 2025275 AMAQI
25th Jul 2025366 AMAQI
25th Jul 2025367 AMAQI
25th Jul 2025358 AMAQI
25th Jul 2025319 AMAQI
25th Jul 20252410 AMAQI
25th Jul 20252311 AMAQI
25th Jul 20252612 PMAQI
25th Jul 2025271 PMAQI
25th Jul 2025282 PMAQI
25th Jul 2025273 PMAQI
25th Jul 2025274 PMAQI
25th Jul 2025285 PMAQI
25th Jul 2025326 PMAQI
25th Jul 2025347 PMAQI
25th Jul 2025398 PMAQI
25th Jul 2025359 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20253211 PMAQI
26th Jul 20253112 AMAQI
26th Jul 2025321 AMAQI
26th Jul 2025372 AMAQI
26th Jul 2025513 AMAQI
26th Jul 2025554 AMAQI
19°C18/20°C
26th Jul 2025565 AMAQI
26th Jul 2025566 AMAQI
26th Jul 2025567 AMAQI
26th Jul 2025538 AMAQI
26th Jul 2025549 AMAQI
26th Jul 20255710 AMAQI
26th Jul 20255511 AMAQI
26th Jul 20255212 PMAQI
26th Jul 2025521 PMAQI
26th Jul 2025532 PMAQI
26th Jul 2025473 PMAQI
26th Jul 2025424 PMAQI
26th Jul 2025415 PMAQI
26th Jul 2025416 PMAQI
26th Jul 2025367 PMAQI
26th Jul 2025338 PMAQI
26th Jul 2025409 PMAQI
26th Jul 20254910 PMAQI
26th Jul 20254911 PMAQI
27th Jul 20254712 AMAQI
27th Jul 2025481 AMAQI
27th Jul 2025442 AMAQI
27th Jul 2025353 AMAQI
27th Jul 2025284 AMAQI
19°C17/22°C
27th Jul 2025225 AMAQI
27th Jul 2025216 AMAQI
27th Jul 2025217 AMAQI
27th Jul 2025268 AMAQI
27th Jul 2025199 AMAQI
27th Jul 20251610 AMAQI
27th Jul 20251611 AMAQI
27th Jul 20251712 PMAQI
27th Jul 2025231 PMAQI
27th Jul 2025272 PMAQI
27th Jul 2025283 PMAQI
27th Jul 2025274 PMAQI
27th Jul 2025295 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025337 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 2025282 AMAQI
28th Jul 2025303 AMAQI
28th Jul 2025334 AMAQI
18°C17/19°C
28th Jul 2025385 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025277 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025299 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20254111 AMAQI
28th Jul 20255412 PMAQI
28th Jul 2025361 PMAQI
28th Jul 2025302 PMAQI
28th Jul 2025283 PMAQI
28th Jul 2025284 PMAQI
28th Jul 2025285 PMAQI
28th Jul 2025336 PMAQI
28th Jul 2025337 PMAQI
28th Jul 2025328 PMAQI
28th Jul 2025329 PMAQI
28th Jul 20253210 PMAQI
28th Jul 20253211 PMAQI
29th Jul 20253112 AMAQI
29th Jul 2025321 AMAQI
29th Jul 2025382 AMAQI
29th Jul 2025433 AMAQI
29th Jul 2025484 AMAQI
18°C16/20°C
29th Jul 2025445 AMAQI
29th Jul 2025446 AMAQI
29th Jul 2025507 AMAQI
29th Jul 2025518 AMAQI
29th Jul 2025529 AMAQI
29th Jul 20255510 AMAQI
29th Jul 20255411 AMAQI
29th Jul 20253312 PMAQI
29th Jul 2025321 PMAQI
29th Jul 2025322 PMAQI
29th Jul 2025323 PMAQI
29th Jul 2025324 PMAQI
29th Jul 2025335 PMAQI
29th Jul 2025346 PMAQI
29th Jul 2025327 PMAQI
29th Jul 2025338 PMAQI
29th Jul 2025379 PMAQI
29th Jul 20254110 PMAQI
29th Jul 20254011 PMAQI
30th Jul 20254112 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025322 AMAQI
30th Jul 2025263 AMAQI
30th Jul 2025274 AMAQI
18°C16/19°C
30th Jul 2025285 AMAQI
30th Jul 2025356 AMAQI
30th Jul 2025417 AMAQI
30th Jul 2025468 AMAQI
30th Jul 2025499 AMAQI
30th Jul 20254610 AMAQI
30th Jul 20253811 AMAQI
30th Jul 20253412 PMAQI
30th Jul 2025371 PMAQI
30th Jul 2025372 PMAQI
30th Jul 2025303 PMAQI
30th Jul 2025284 PMAQI
30th Jul 2025285 PMAQI
30th Jul 2025276 PMAQI
30th Jul 2025327 PMAQI
30th Jul 2025338 PMAQI
30th Jul 2025309 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
18°C16/20°C
31st Jul 2025285 AMAQI
31st Jul 2025326 AMAQI
31st Jul 2025397 AMAQI
31st Jul 2025358 AMAQI
31st Jul 2025269 AMAQI
31st Jul 20252610 AMAQI
31st Jul 20252511 AMAQI
31st Jul 20252212 PMAQI
31st Jul 2025231 PMAQI
31st Jul 2025222 PMAQI
31st Jul 2025223 PMAQI
31st Jul 2025224 PMAQI
31st Jul 2025235 PMAQI
31st Jul 2025206 PMAQI
31st Jul 2025207 PMAQI
31st Jul 2025218 PMAQI
31st Jul 2025229 PMAQI
31st Jul 20252310 PMAQI
31st Jul 20252211 PMAQI
1st Aug 20252112 AMAQI
1st Aug 2025221 AMAQI
1st Aug 2025192 AMAQI
1st Aug 2025203 AMAQI
1st Aug 2025194 AMAQI
19°C17/20°C
1st Aug 2025215 AMAQI
1st Aug 2025196 AMAQI
1st Aug 2025237 AMAQI
1st Aug 2025238 AMAQI
1st Aug 2025279 AMAQI
1st Aug 20253010 AMAQI
1st Aug 20252311 AMAQI
1st Aug 20252212 PMAQI
1st Aug 2025201 PMAQI
1st Aug 2025222 PMAQI
1st Aug 2025223 PMAQI
1st Aug 2025214 PMAQI
1st Aug 2025215 PMAQI
1st Aug 2025206 PMAQI
1st Aug 2025207 PMAQI
1st Aug 2025208 PMAQI
1st Aug 2025229 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252212 AMAQI
2nd Aug 2025221 AMAQI
2nd Aug 2025202 AMAQI
2nd Aug 2025203 AMAQI
2nd Aug 2025204 AMAQI
18°C17/19°C
2nd Aug 2025205 AMAQI
2nd Aug 2025226 AMAQI
2nd Aug 2025197 AMAQI
2nd Aug 2025178 AMAQI
2nd Aug 2025289 AMAQI
2nd Aug 20252110 AMAQI
2nd Aug 20251711 AMAQI
2nd Aug 20252212 PMAQI
2nd Aug 2025221 PMAQI
2nd Aug 2025212 PMAQI
2nd Aug 2025183 PMAQI
2nd Aug 2025214 PMAQI
2nd Aug 2025215 PMAQI
2nd Aug 2025216 PMAQI
2nd Aug 2025207 PMAQI
2nd Aug 2025218 PMAQI
2nd Aug 2025209 PMAQI
2nd Aug 20252110 PMAQI
2nd Aug 20252211 PMAQI
3rd Aug 20252112 AMAQI
3rd Aug 2025211 AMAQI
3rd Aug 2025222 AMAQI
3rd Aug 2025223 AMAQI
3rd Aug 2025184 AMAQI
17°C15/19°C
3rd Aug 2025225 AMAQI
3rd Aug 2025256 AMAQI
3rd Aug 2025227 AMAQI
3rd Aug 2025258 AMAQI
3rd Aug 2025239 AMAQI
3rd Aug 20252610 AMAQI
3rd Aug 20252511 AMAQI
3rd Aug 20252612 PMAQI
3rd Aug 2025231 PMAQI
3rd Aug 2025222 PMAQI
3rd Aug 2025233 PMAQI
3rd Aug 2025234 PMAQI
3rd Aug 2025235 PMAQI
3rd Aug 2025286 PMAQI
3rd Aug 2025237 PMAQI
3rd Aug 2025258 PMAQI
3rd Aug 2025239 PMAQI
3rd Aug 20252410 PMAQI
3rd Aug 20252311 PMAQI
4th Aug 20252312 AMAQI
4th Aug 2025241 AMAQI
--°C/°C
5 AM
1 PM
9 PM
1 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 9 PM
31AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 9 PM
30AQI
17 hours / Day
510 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 9 PM (Avg. 31), while the lowest AQI was between 5 AM to 9 PM (Avg. 30).
Night time
Avg. Highest Time
12 AM - 11 PM
29AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
12 AM - 11 PM
29AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 29), while the lowest AQI was between 12 AM to 11 PM (Avg. 29).
2025 Days Vs Air Quality
Great Synthe, Grande Synthe, Hauts De France, France
2025
66%
141
29%
61
6%
12
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
141 DaysModerate
61 DaysPoor
12 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 66%
Health Risk Level:
Moderate
In 2025, 66% of 215 days were within WHO’s safe air quality limits, and 34% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Great Synthe, 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.
1st January 2025
34AQI
34AQI
2nd January 2025
27AQI
27AQI
3rd January 2025
30AQI
30AQI
4th January 2025
52AQI
52AQI
5th January 2025
37AQI
37AQI
6th January 2025
26AQI
26AQI
7th January 2025
26AQI
26AQI
8th January 2025
40AQI
40AQI
9th January 2025
31AQI
31AQI
10th January 2025
65AQI
65AQI
11th January 2025
77AQI
77AQI
12th January 2025
53AQI
53AQI
13th January 2025
90AQI
90AQI
14th January 2025
90AQI
90AQI
15th January 2025
85AQI
85AQI
16th January 2025
75AQI
75AQI
17th January 2025
80AQI
80AQI
18th January 2025
78AQI
78AQI
19th January 2025
82AQI
82AQI
20th January 2025
104AQI
104AQI
21st January 2025
90AQI
90AQI
22nd January 2025
102AQI
102AQI
23rd January 2025
58AQI
58AQI
24th January 2025
41AQI
41AQI
25th January 2025
38AQI
38AQI
26th January 2025
32AQI
32AQI
27th January 2025
31AQI
31AQI
28th January 2025
32AQI
32AQI
29th January 2025
30AQI
30AQI
30th January 2025
31AQI
31AQI
31st January 2025
39AQI
39AQI
1st February 2025
65AQI
65AQI
2nd February 2025
83AQI
83AQI
3rd February 2025
102AQI
102AQI
4th February 2025
75AQI
75AQI
5th February 2025
65AQI
65AQI
6th February 2025
59AQI
59AQI
7th February 2025
56AQI
56AQI
8th February 2025
69AQI
69AQI
9th February 2025
49AQI
49AQI
10th February 2025
122AQI
122AQI
11th February 2025
123AQI
123AQI
12th February 2025
78AQI
78AQI
13th February 2025
80AQI
80AQI
14th February 2025
108AQI
108AQI
15th February 2025
103AQI
103AQI
16th February 2025
79AQI
79AQI
17th February 2025
74AQI
74AQI
18th February 2025
85AQI
85AQI
19th February 2025
91AQI
91AQI
20th February 2025
78AQI
78AQI
21st February 2025
57AQI
57AQI
22nd February 2025
53AQI
53AQI
23rd February 2025
48AQI
48AQI
24th February 2025
31AQI
31AQI
25th February 2025
48AQI
48AQI
26th February 2025
38AQI
38AQI
27th February 2025
29AQI
29AQI
28th February 2025
39AQI
39AQI
1st March 2025
37AQI
37AQI
2nd March 2025
77AQI
77AQI
3rd March 2025
117AQI
117AQI
4th March 2025
130AQI
130AQI
5th March 2025
130AQI
130AQI
6th March 2025
97AQI
97AQI
7th March 2025
57AQI
57AQI
8th March 2025
71AQI
71AQI
9th March 2025
92AQI
92AQI
10th March 2025
143AQI
143AQI
11th March 2025
83AQI
83AQI
12th March 2025
40AQI
40AQI
13th March 2025
30AQI
30AQI
14th March 2025
31AQI
31AQI
15th March 2025
39AQI
39AQI
16th March 2025
43AQI
43AQI
17th March 2025
40AQI
40AQI
18th March 2025
46AQI
46AQI
19th March 2025
82AQI
82AQI
20th March 2025
80AQI
80AQI
21st March 2025
62AQI
62AQI
22nd March 2025
46AQI
46AQI
23rd March 2025
43AQI
43AQI
24th March 2025
93AQI
93AQI
25th March 2025
109AQI
109AQI
26th March 2025
50AQI
50AQI
27th March 2025
66AQI
66AQI
28th March 2025
54AQI
54AQI
29th March 2025
35AQI
35AQI
30th March 2025
41AQI
41AQI
31st March 2025
28AQI
28AQI
1st April 2025
45AQI
45AQI
2nd April 2025
51AQI
51AQI
3rd April 2025
55AQI
55AQI
4th April 2025
71AQI
71AQI
5th April 2025
64AQI
64AQI
6th April 2025
38AQI
38AQI
7th April 2025
36AQI
36AQI
8th April 2025
54AQI
54AQI
9th April 2025
32AQI
32AQI
10th April 2025
26AQI
26AQI
11th April 2025
58AQI
58AQI
12th April 2025
71AQI
71AQI
13th April 2025
44AQI
44AQI
14th April 2025
33AQI
33AQI
15th April 2025
54AQI
54AQI
16th April 2025
21AQI
21AQI
17th April 2025
41AQI
41AQI
18th April 2025
39AQI
39AQI
19th April 2025
46AQI
46AQI
20th April 2025
42AQI
42AQI
21st April 2025
65AQI
65AQI
22nd April 2025
46AQI
46AQI
23rd April 2025
22AQI
22AQI
24th April 2025
59AQI
59AQI
25th April 2025
42AQI
42AQI
26th April 2025
63AQI
63AQI
27th April 2025
48AQI
48AQI
28th April 2025
52AQI
52AQI
29th April 2025
62AQI
62AQI
30th April 2025
61AQI
61AQI
1st May 2025
78AQI
78AQI
2nd May 2025
73AQI
73AQI
3rd May 2025
49AQI
49AQI
4th May 2025
23AQI
23AQI
5th May 2025
27AQI
27AQI
6th May 2025
22AQI
22AQI
7th May 2025
23AQI
23AQI
8th May 2025
34AQI
34AQI
9th May 2025
33AQI
33AQI
10th May 2025
38AQI
38AQI
11th May 2025
32AQI
32AQI
12th May 2025
40AQI
40AQI
13th May 2025
52AQI
52AQI
14th May 2025
56AQI
56AQI
15th May 2025
49AQI
49AQI
16th May 2025
41AQI
41AQI
17th May 2025
40AQI
40AQI
18th May 2025
47AQI
47AQI
19th May 2025
44AQI
44AQI
20th May 2025
36AQI
36AQI
21st May 2025
52AQI
52AQI
22nd May 2025
37AQI
37AQI
23rd May 2025
32AQI
32AQI
24th May 2025
29AQI
29AQI
25th May 2025
28AQI
28AQI
26th May 2025
33AQI
33AQI
27th May 2025
24AQI
24AQI
28th May 2025
29AQI
29AQI
29th May 2025
33AQI
33AQI
30th May 2025
21AQI
21AQI
31st May 2025
34AQI
34AQI
1st June 2025
36AQI
36AQI
2nd June 2025
29AQI
29AQI
3rd June 2025
26AQI
26AQI
4th June 2025
21AQI
21AQI
5th June 2025
21AQI
21AQI
6th June 2025
24AQI
24AQI
7th June 2025
20AQI
20AQI
8th June 2025
22AQI
22AQI
9th June 2025
50AQI
50AQI
10th June 2025
50AQI
50AQI
11th June 2025
44AQI
44AQI
12th June 2025
50AQI
50AQI
13th June 2025
58AQI
58AQI
14th June 2025
50AQI
50AQI
15th June 2025
35AQI
35AQI
16th June 2025
38AQI
38AQI
17th June 2025
38AQI
38AQI
18th June 2025
40AQI
40AQI
19th June 2025
44AQI
44AQI
20th June 2025
43AQI
43AQI
21st June 2025
38AQI
38AQI
22nd June 2025
35AQI
35AQI
23rd June 2025
29AQI
29AQI
24th June 2025
33AQI
33AQI
25th June 2025
27AQI
27AQI
26th June 2025
29AQI
29AQI
27th June 2025
30AQI
30AQI
28th June 2025
18AQI
18AQI
29th June 2025
23AQI
23AQI
30th June 2025
35AQI
35AQI
1st July 2025
50AQI
50AQI
2nd July 2025
50AQI
50AQI
3rd July 2025
29AQI
29AQI
4th July 2025
25AQI
25AQI
5th July 2025
25AQI
25AQI
6th July 2025
18AQI
18AQI
7th July 2025
21AQI
21AQI
8th July 2025
29AQI
29AQI
9th July 2025
30AQI
30AQI
10th July 2025
31AQI
31AQI
11th July 2025
28AQI
28AQI
12th July 2025
23AQI
23AQI
13th July 2025
30AQI
30AQI
14th July 2025
50AQI
50AQI
15th July 2025
35AQI
35AQI
16th July 2025
35AQI
35AQI
17th July 2025
36AQI
36AQI
18th July 2025
41AQI
41AQI
19th July 2025
42AQI
42AQI
20th July 2025
24AQI
24AQI
21st July 2025
20AQI
20AQI
22nd July 2025
21AQI
21AQI
23rd July 2025
26AQI
26AQI
24th July 2025
39AQI
39AQI
25th July 2025
31AQI
31AQI
26th July 2025
46AQI
46AQI
27th July 2025
29AQI
29AQI
28th July 2025
32AQI
32AQI
29th July 2025
39AQI
39AQI
30th July 2025
34AQI
34AQI
31st July 2025
26AQI
26AQI
1st August 2025
22AQI
22AQI
2nd August 2025
21AQI
21AQI
55AQI
71AQI
67AQI
48AQI
38AQI
35AQI
32AQI
22AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202549AQI
16
13
2
7
16
5
14
12
5
16
14
26
5
29
1
31
2
141
61
12
Highest AQI recorded in
February71AQI
Lowest AQI recorded in
August22AQI
202440AQI
21
10
26
3
22
9
29
19
9
25
5
31
26
5
23
5
2
27
4
16
14
23
8
288
72
2
Highest AQI recorded in
November50AQI
Lowest AQI recorded in
July31AQI
202342AQI
23
7
1
15
7
3
1
26
4
18
12
16
15
19
11
27
2
29
2
18
7
1
28
3
25
3
1
23
7
1
267
80
7
1
Highest AQI recorded in
February61AQI
Lowest AQI recorded in
August31AQI
202244AQI
20
11
19
2
7
17
5
1
17
13
24
6
21
3
24
1
4
23
5
6
19
7
16
14
1
200
79
6
1
Highest AQI recorded in
March75AQI
Lowest AQI recorded in
August25AQI
202141AQI
17
1
21
7
22
8
1
24
4
28
3
15
7
2
5
27
4
31
15
13
27
4
24
6
24
7
275
64
3
5
Highest AQI recorded in
June70AQI
Lowest AQI recorded in
January26AQI
202030AQI
11
2
19
2
18
30
31
25
6
27
1
30
20
10
15
3
226
24
Highest AQI recorded in
November41AQI
Lowest AQI recorded in
July20AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
49AQILeast Polluted Year Recorded
2020(Avg.)
30AQIGreat Synthe's annual 2025 AQI (49) shows an average percentage change of 26.8% (worsened AQI) compared to previous years: 2020 (30), 2021 (41), 2022 (44), 2023 (42), 2024 (40).
