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HistoryAQIPM2.5PM10COSO2NO2O3

Saint Ouen, Saint Helier, Jersey 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

Saint Ouen, Saint Helier, Jersey

2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
28th Aug 2024
43AQI
Lowest AQI recorded on
16th Aug 2024
18AQI

Same Day Analysis (6th August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 25 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: 6th Aug - 7th Aug 2025

Saint Ouen, Saint Helier, Jersey

AQI
Day
Night
.

5 AM6th Aug 2025

9 PM

4 AM7th Aug 2025

Day time
Avg. Highest Time
10AM6th Aug

30AQI

Avg. Lowest Time
7AM6th Aug

24AQI

Night time
Avg. Highest Time
12AM7th Aug

26AQI

Avg. Lowest Time
1AM7th Aug

24AQI

In the last 24 hours,

Saint Ouen's AQI reached its highest point of 30 at 10 AM during the Day, while the lowest point, 24, was recorded at 1 AM during the Night between 6th Aug and 7th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Saint Ouen, Saint Helier, Jersey

JulAug
08th - 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 - 05th05th - 06th06th - 07th07th
Day
Night
8th Jul 2025265 AMAQI
8th Jul 2025226 AMAQI
8th Jul 2025227 AMAQI
8th Jul 2025248 AMAQI
8th Jul 2025249 AMAQI
8th Jul 20252610 AMAQI
8th Jul 20252811 AMAQI
8th Jul 20252712 PMAQI
8th Jul 2025261 PMAQI
8th Jul 2025232 PMAQI
8th Jul 2025243 PMAQI
8th Jul 2025224 PMAQI
8th Jul 2025245 PMAQI
8th Jul 2025236 PMAQI
8th Jul 2025227 PMAQI
8th Jul 2025228 PMAQI
8th Jul 2025239 PMAQI
8th Jul 20252410 PMAQI
8th Jul 20252311 PMAQI
9th Jul 20252412 AMAQI
9th Jul 2025251 AMAQI
9th Jul 2025252 AMAQI
9th Jul 2025263 AMAQI
9th Jul 2025324 AMAQI

16°C15/16°C

9th Jul 2025345 AMAQI
9th Jul 2025336 AMAQI
9th Jul 2025347 AMAQI
9th Jul 2025338 AMAQI
9th Jul 2025359 AMAQI
9th Jul 20253710 AMAQI
9th Jul 20253211 AMAQI
9th Jul 20253412 PMAQI
9th Jul 2025281 PMAQI
9th Jul 2025262 PMAQI
9th Jul 2025263 PMAQI
9th Jul 2025274 PMAQI
9th Jul 2025265 PMAQI
9th Jul 2025266 PMAQI
9th Jul 2025267 PMAQI
9th Jul 2025278 PMAQI
9th Jul 2025269 PMAQI
9th Jul 20252610 PMAQI
9th Jul 20252811 PMAQI
10th Jul 20253012 AMAQI
10th Jul 2025301 AMAQI
10th Jul 2025292 AMAQI
10th Jul 2025283 AMAQI
10th Jul 2025294 AMAQI

17°C17/18°C

10th Jul 2025305 AMAQI
10th Jul 2025296 AMAQI
10th Jul 2025367 AMAQI
10th Jul 2025328 AMAQI
10th Jul 2025339 AMAQI
10th Jul 20253010 AMAQI
10th Jul 20253011 AMAQI
10th Jul 20253012 PMAQI
10th Jul 2025271 PMAQI
10th Jul 2025272 PMAQI
10th Jul 2025273 PMAQI
10th Jul 2025274 PMAQI
10th Jul 2025275 PMAQI
10th Jul 2025266 PMAQI
10th Jul 2025247 PMAQI
10th Jul 2025268 PMAQI
10th Jul 2025259 PMAQI
10th Jul 20252710 PMAQI
10th Jul 20252711 PMAQI
11th Jul 20252712 AMAQI
11th Jul 2025281 AMAQI
11th Jul 2025252 AMAQI
11th Jul 2025263 AMAQI
11th Jul 2025264 AMAQI

19°C17/20°C

11th Jul 2025275 AMAQI
11th Jul 2025296 AMAQI
11th Jul 2025307 AMAQI
11th Jul 2025308 AMAQI
11th Jul 2025329 AMAQI
11th Jul 20253010 AMAQI
11th Jul 20253011 AMAQI
11th Jul 20253112 PMAQI
11th Jul 2025281 PMAQI
11th Jul 2025292 PMAQI
11th Jul 2025293 PMAQI
11th Jul 2025284 PMAQI
11th Jul 2025275 PMAQI
11th Jul 2025266 PMAQI
11th Jul 2025257 PMAQI
11th Jul 2025258 PMAQI
11th Jul 2025269 PMAQI
11th Jul 20252710 PMAQI
11th Jul 20252811 PMAQI
12th Jul 20252812 AMAQI
12th Jul 2025291 AMAQI
12th Jul 2025272 AMAQI
12th Jul 2025283 AMAQI
12th Jul 2025294 AMAQI

20°C19/23°C

12th Jul 2025295 AMAQI
12th Jul 2025296 AMAQI
12th Jul 2025337 AMAQI
12th Jul 2025348 AMAQI
12th Jul 2025319 AMAQI
12th Jul 20252910 AMAQI
12th Jul 20253011 AMAQI
12th Jul 20252812 PMAQI
12th Jul 2025291 PMAQI
12th Jul 2025282 PMAQI
12th Jul 2025283 PMAQI
12th Jul 2025294 PMAQI
12th Jul 2025295 PMAQI
12th Jul 2025296 PMAQI
12th Jul 2025287 PMAQI
12th Jul 2025288 PMAQI
12th Jul 2025289 PMAQI
12th Jul 20252810 PMAQI
12th Jul 20252911 PMAQI
13th Jul 20253012 AMAQI
13th Jul 2025301 AMAQI
13th Jul 2025312 AMAQI
13th Jul 2025303 AMAQI
13th Jul 2025334 AMAQI

21°C19/23°C

13th Jul 2025315 AMAQI
13th Jul 2025336 AMAQI
13th Jul 2025367 AMAQI
13th Jul 2025378 AMAQI
13th Jul 2025389 AMAQI
13th Jul 20253810 AMAQI
13th Jul 20253511 AMAQI
13th Jul 20253412 PMAQI
13th Jul 2025331 PMAQI
13th Jul 2025332 PMAQI
13th Jul 2025323 PMAQI
13th Jul 2025324 PMAQI
13th Jul 2025325 PMAQI
13th Jul 2025336 PMAQI
13th Jul 2025327 PMAQI
13th Jul 2025328 PMAQI
13th Jul 2025349 PMAQI
13th Jul 20253710 PMAQI
13th Jul 20253911 PMAQI
14th Jul 20253812 AMAQI
14th Jul 2025361 AMAQI
14th Jul 2025362 AMAQI
14th Jul 2025413 AMAQI
14th Jul 2025414 AMAQI

20°C19/22°C

14th Jul 2025435 AMAQI
14th Jul 2025376 AMAQI
14th Jul 2025367 AMAQI
14th Jul 2025348 AMAQI
14th Jul 2025279 AMAQI
14th Jul 20252610 AMAQI
14th Jul 20252611 AMAQI
14th Jul 20252712 PMAQI
14th Jul 2025281 PMAQI
14th Jul 2025302 PMAQI
14th Jul 2025293 PMAQI
14th Jul 2025294 PMAQI
14th Jul 2025285 PMAQI
14th Jul 2025286 PMAQI
14th Jul 2025277 PMAQI
14th Jul 2025288 PMAQI
14th Jul 2025299 PMAQI
14th Jul 20253010 PMAQI
14th Jul 20253011 PMAQI
15th Jul 20253012 AMAQI
15th Jul 2025301 AMAQI
15th Jul 2025282 AMAQI
15th Jul 2025233 AMAQI
15th Jul 2025234 AMAQI

17°C17/18°C

15th Jul 2025255 AMAQI
15th Jul 2025276 AMAQI
15th Jul 2025267 AMAQI
15th Jul 2025278 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20252410 AMAQI
15th Jul 20252311 AMAQI
15th Jul 20252212 PMAQI
15th Jul 2025231 PMAQI
15th Jul 2025262 PMAQI
15th Jul 2025263 PMAQI
15th Jul 2025264 PMAQI
15th Jul 2025275 PMAQI
15th Jul 2025276 PMAQI
15th Jul 2025277 PMAQI
15th Jul 2025278 PMAQI
15th Jul 2025289 PMAQI
15th Jul 20252910 PMAQI
15th Jul 20253011 PMAQI
16th Jul 20253212 AMAQI
16th Jul 2025331 AMAQI
16th Jul 2025342 AMAQI
16th Jul 2025323 AMAQI
16th Jul 2025334 AMAQI

17°C16/18°C

16th Jul 2025335 AMAQI
16th Jul 2025326 AMAQI
16th Jul 2025317 AMAQI
16th Jul 2025308 AMAQI
16th Jul 2025339 AMAQI
16th Jul 20253410 AMAQI
16th Jul 20253711 AMAQI
16th Jul 20253812 PMAQI
16th Jul 2025381 PMAQI
16th Jul 2025352 PMAQI
16th Jul 2025343 PMAQI
16th Jul 2025324 PMAQI
16th Jul 2025325 PMAQI
16th Jul 2025306 PMAQI
16th Jul 2025307 PMAQI
16th Jul 2025308 PMAQI
16th Jul 2025319 PMAQI
16th Jul 20253210 PMAQI
16th Jul 20253111 PMAQI
17th Jul 20253012 AMAQI
17th Jul 2025291 AMAQI
17th Jul 2025272 AMAQI
17th Jul 2025253 AMAQI
17th Jul 2025234 AMAQI

18°C17/18°C

17th Jul 2025215 AMAQI
17th Jul 2025256 AMAQI
17th Jul 2025287 AMAQI
17th Jul 2025278 AMAQI
17th Jul 2025239 AMAQI
17th Jul 20252710 AMAQI
17th Jul 20252811 AMAQI
17th Jul 20252712 PMAQI
17th Jul 2025261 PMAQI
17th Jul 2025252 PMAQI
17th Jul 2025243 PMAQI
17th Jul 2025234 PMAQI
17th Jul 2025225 PMAQI
17th Jul 2025226 PMAQI
17th Jul 2025227 PMAQI
17th Jul 2025228 PMAQI
17th Jul 2025229 PMAQI
17th Jul 20252310 PMAQI
17th Jul 20252311 PMAQI
18th Jul 20252512 AMAQI
18th Jul 2025261 AMAQI
18th Jul 2025272 AMAQI
18th Jul 2025303 AMAQI
18th Jul 2025424 AMAQI

18°C17/19°C

18th Jul 2025365 AMAQI
18th Jul 2025336 AMAQI
18th Jul 2025357 AMAQI
18th Jul 2025378 AMAQI
18th Jul 2025369 AMAQI
18th Jul 20253410 AMAQI
18th Jul 20253111 AMAQI
18th Jul 20253012 PMAQI
18th Jul 2025261 PMAQI
18th Jul 2025262 PMAQI
18th Jul 2025253 PMAQI
18th Jul 2025264 PMAQI
18th Jul 2025255 PMAQI
18th Jul 2025256 PMAQI
18th Jul 2025257 PMAQI
18th Jul 2025268 PMAQI
18th Jul 2025279 PMAQI
18th Jul 20253010 PMAQI
18th Jul 20253111 PMAQI
19th Jul 20252912 AMAQI
19th Jul 2025291 AMAQI
19th Jul 2025292 AMAQI
19th Jul 2025303 AMAQI
19th Jul 2025334 AMAQI

18°C17/18°C

19th Jul 2025325 AMAQI
19th Jul 2025316 AMAQI
19th Jul 2025287 AMAQI
19th Jul 2025298 AMAQI
19th Jul 2025299 AMAQI
19th Jul 20253010 AMAQI
19th Jul 20253111 AMAQI
19th Jul 20253212 PMAQI
19th Jul 2025311 PMAQI
19th Jul 2025302 PMAQI
19th Jul 2025303 PMAQI
19th Jul 2025284 PMAQI
19th Jul 2025295 PMAQI
19th Jul 2025296 PMAQI
19th Jul 2025307 PMAQI
19th Jul 2025318 PMAQI
19th Jul 2025319 PMAQI
19th Jul 20253010 PMAQI
19th Jul 20253011 PMAQI
20th Jul 20252912 AMAQI
20th Jul 2025291 AMAQI
20th Jul 2025282 AMAQI
20th Jul 2025223 AMAQI
20th Jul 2025224 AMAQI

17°C17/19°C

20th Jul 2025225 AMAQI
20th Jul 2025236 AMAQI
20th Jul 2025227 AMAQI
20th Jul 2025218 AMAQI
20th Jul 2025209 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20251911 AMAQI
20th Jul 20251912 PMAQI
20th Jul 2025201 PMAQI
20th Jul 2025202 PMAQI
20th Jul 2025213 PMAQI
20th Jul 2025204 PMAQI
20th Jul 2025205 PMAQI
20th Jul 2025216 PMAQI
20th Jul 2025207 PMAQI
20th Jul 2025208 PMAQI
20th Jul 2025229 PMAQI
20th Jul 20252210 PMAQI
20th Jul 20252311 PMAQI
21st Jul 20252312 AMAQI
21st Jul 2025231 AMAQI
21st Jul 2025222 AMAQI
21st Jul 2025223 AMAQI
21st Jul 2025214 AMAQI

18°C17/18°C

21st Jul 2025185 AMAQI
21st Jul 2025196 AMAQI
21st Jul 2025217 AMAQI
21st Jul 2025218 AMAQI
21st Jul 2025229 AMAQI
21st Jul 20252110 AMAQI
21st Jul 20252211 AMAQI
21st Jul 20252012 PMAQI
21st Jul 2025191 PMAQI
21st Jul 2025192 PMAQI
21st Jul 2025203 PMAQI
21st Jul 2025204 PMAQI
21st Jul 2025215 PMAQI
21st Jul 2025216 PMAQI
21st Jul 2025227 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025219 PMAQI
21st Jul 20252210 PMAQI
21st Jul 20252211 PMAQI
22nd Jul 20252112 AMAQI
22nd Jul 2025211 AMAQI
22nd Jul 2025222 AMAQI
22nd Jul 2025203 AMAQI
22nd Jul 2025214 AMAQI

17°C16/17°C

22nd Jul 2025185 AMAQI
22nd Jul 2025196 AMAQI
22nd Jul 2025197 AMAQI
22nd Jul 2025208 AMAQI
22nd Jul 2025219 AMAQI
22nd Jul 20251910 AMAQI
22nd Jul 20252011 AMAQI
22nd Jul 20252012 PMAQI
22nd Jul 2025201 PMAQI
22nd Jul 2025182 PMAQI
22nd Jul 2025183 PMAQI
22nd Jul 2025174 PMAQI
22nd Jul 2025175 PMAQI
22nd Jul 2025176 PMAQI
22nd Jul 2025177 PMAQI
22nd Jul 2025178 PMAQI
22nd Jul 2025179 PMAQI
22nd Jul 20251810 PMAQI
22nd Jul 20251811 PMAQI
23rd Jul 20251812 AMAQI
23rd Jul 2025181 AMAQI
23rd Jul 2025202 AMAQI
23rd Jul 2025213 AMAQI
23rd Jul 2025214 AMAQI

17°C17/17°C

23rd Jul 2025215 AMAQI
23rd Jul 2025186 AMAQI
23rd Jul 2025217 AMAQI
23rd Jul 2025188 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20252210 AMAQI
23rd Jul 20252411 AMAQI
23rd Jul 20252612 PMAQI
23rd Jul 2025211 PMAQI
23rd Jul 2025182 PMAQI
23rd Jul 2025193 PMAQI
23rd Jul 2025194 PMAQI
23rd Jul 2025195 PMAQI
23rd Jul 2025216 PMAQI
23rd Jul 2025217 PMAQI
23rd Jul 2025208 PMAQI
23rd Jul 2025219 PMAQI
23rd Jul 20252110 PMAQI
23rd Jul 20252111 PMAQI
24th Jul 20252112 AMAQI
24th Jul 2025251 AMAQI
24th Jul 2025312 AMAQI
24th Jul 2025323 AMAQI
24th Jul 2025304 AMAQI

17°C16/17°C

24th Jul 2025325 AMAQI
24th Jul 2025326 AMAQI
24th Jul 2025307 AMAQI
24th Jul 2025338 AMAQI
24th Jul 2025359 AMAQI
24th Jul 20253910 AMAQI
24th Jul 20254411 AMAQI
24th Jul 20254412 PMAQI
24th Jul 2025421 PMAQI
24th Jul 2025342 PMAQI
24th Jul 2025303 PMAQI
24th Jul 2025324 PMAQI
24th Jul 2025315 PMAQI
24th Jul 2025306 PMAQI
24th Jul 2025307 PMAQI
24th Jul 2025328 PMAQI
24th Jul 2025329 PMAQI
24th Jul 20253210 PMAQI
24th Jul 20253311 PMAQI
25th Jul 20253312 AMAQI
25th Jul 2025331 AMAQI
25th Jul 2025372 AMAQI
25th Jul 2025443 AMAQI
25th Jul 2025514 AMAQI

17°C17/18°C

25th Jul 2025535 AMAQI
25th Jul 2025496 AMAQI
25th Jul 2025467 AMAQI
25th Jul 2025458 AMAQI
25th Jul 2025429 AMAQI
25th Jul 20254310 AMAQI
25th Jul 20254011 AMAQI
25th Jul 20254212 PMAQI
25th Jul 2025391 PMAQI
25th Jul 2025432 PMAQI
25th Jul 2025423 PMAQI
25th Jul 2025394 PMAQI
25th Jul 2025395 PMAQI
25th Jul 2025386 PMAQI
25th Jul 2025377 PMAQI
25th Jul 2025388 PMAQI
25th Jul 2025399 PMAQI
25th Jul 20254110 PMAQI
25th Jul 20254111 PMAQI
26th Jul 20254112 AMAQI
26th Jul 2025401 AMAQI
26th Jul 2025402 AMAQI
26th Jul 2025373 AMAQI
26th Jul 2025334 AMAQI

18°C17/18°C

26th Jul 2025335 AMAQI
26th Jul 2025306 AMAQI
26th Jul 2025327 AMAQI
26th Jul 2025298 AMAQI
26th Jul 2025309 AMAQI
26th Jul 20253210 AMAQI
26th Jul 20253311 AMAQI
26th Jul 20253712 PMAQI
26th Jul 2025361 PMAQI
26th Jul 2025322 PMAQI
26th Jul 2025323 PMAQI
26th Jul 2025314 PMAQI
26th Jul 2025315 PMAQI
26th Jul 2025306 PMAQI
26th Jul 2025287 PMAQI
26th Jul 2025288 PMAQI
26th Jul 2025289 PMAQI
26th Jul 20252910 PMAQI
26th Jul 20252911 PMAQI
27th Jul 20252912 AMAQI
27th Jul 2025291 AMAQI
27th Jul 2025292 AMAQI
27th Jul 2025243 AMAQI
27th Jul 2025224 AMAQI

18°C17/18°C

27th Jul 2025215 AMAQI
27th Jul 2025216 AMAQI
27th Jul 2025237 AMAQI
27th Jul 2025218 AMAQI
27th Jul 2025209 AMAQI
27th Jul 20252010 AMAQI
27th Jul 20252211 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025231 PMAQI
27th Jul 2025242 PMAQI
27th Jul 2025243 PMAQI
27th Jul 2025244 PMAQI
27th Jul 2025265 PMAQI
27th Jul 2025266 PMAQI
27th Jul 2025267 PMAQI
27th Jul 2025278 PMAQI
27th Jul 2025289 PMAQI
27th Jul 20252810 PMAQI
27th Jul 20252811 PMAQI
28th Jul 20252912 AMAQI
28th Jul 2025281 AMAQI
28th Jul 2025292 AMAQI
28th Jul 2025293 AMAQI
28th Jul 2025324 AMAQI

17°C17/17°C

28th Jul 2025305 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025298 AMAQI
28th Jul 2025299 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20253011 AMAQI
28th Jul 20253212 PMAQI
28th Jul 2025271 PMAQI
28th Jul 2025292 PMAQI
28th Jul 2025273 PMAQI
28th Jul 2025264 PMAQI
28th Jul 2025265 PMAQI
28th Jul 2025266 PMAQI
28th Jul 2025267 PMAQI
28th Jul 2025268 PMAQI
28th Jul 2025269 PMAQI
28th Jul 20252610 PMAQI
28th Jul 20252611 PMAQI
29th Jul 20252612 AMAQI
29th Jul 2025261 AMAQI
29th Jul 2025262 AMAQI
29th Jul 2025253 AMAQI
29th Jul 2025254 AMAQI

17°C16/18°C

29th Jul 2025265 AMAQI
29th Jul 2025256 AMAQI
29th Jul 2025297 AMAQI
29th Jul 2025298 AMAQI
29th Jul 2025339 AMAQI
29th Jul 20253310 AMAQI
29th Jul 20253411 AMAQI
29th Jul 20253212 PMAQI
29th Jul 2025311 PMAQI
29th Jul 2025282 PMAQI
29th Jul 2025263 PMAQI
29th Jul 2025264 PMAQI
29th Jul 2025255 PMAQI
29th Jul 2025296 PMAQI
29th Jul 2025257 PMAQI
29th Jul 2025258 PMAQI
29th Jul 2025269 PMAQI
29th Jul 20252710 PMAQI
29th Jul 20252711 PMAQI
30th Jul 20252712 AMAQI
30th Jul 2025271 AMAQI
30th Jul 2025312 AMAQI
30th Jul 2025263 AMAQI
30th Jul 2025214 AMAQI

17°C17/18°C

30th Jul 2025245 AMAQI
30th Jul 2025246 AMAQI
30th Jul 2025237 AMAQI
30th Jul 2025258 AMAQI
30th Jul 2025259 AMAQI
30th Jul 20252410 AMAQI
30th Jul 20252511 AMAQI
30th Jul 20252312 PMAQI
30th Jul 2025261 PMAQI
30th Jul 2025242 PMAQI
30th Jul 2025243 PMAQI
30th Jul 2025244 PMAQI
30th Jul 2025235 PMAQI
30th Jul 2025246 PMAQI
30th Jul 2025237 PMAQI
30th Jul 2025248 PMAQI
30th Jul 2025239 PMAQI
30th Jul 20252310 PMAQI
30th Jul 20252311 PMAQI
31st Jul 20252312 AMAQI
31st Jul 2025231 AMAQI
31st Jul 2025232 AMAQI
31st Jul 2025223 AMAQI
31st Jul 2025244 AMAQI

18°C17/19°C

31st Jul 2025255 AMAQI
31st Jul 2025276 AMAQI
31st Jul 2025297 AMAQI
31st Jul 2025298 AMAQI
31st Jul 2025279 AMAQI
31st Jul 20252810 AMAQI
31st Jul 20252611 AMAQI
31st Jul 20252712 PMAQI
31st Jul 2025291 PMAQI
31st Jul 2025212 PMAQI
31st Jul 2025223 PMAQI
31st Jul 2025224 PMAQI
31st Jul 2025225 PMAQI
31st Jul 2025236 PMAQI
31st Jul 2025217 PMAQI
31st Jul 2025238 PMAQI
31st Jul 2025249 PMAQI
31st Jul 20252410 PMAQI
31st Jul 20252211 PMAQI
1st Aug 20252212 AMAQI
1st Aug 2025221 AMAQI
1st Aug 2025232 AMAQI
1st Aug 2025203 AMAQI
1st Aug 2025194 AMAQI

18°C17/18°C

1st Aug 2025205 AMAQI
1st Aug 2025216 AMAQI
1st Aug 2025227 AMAQI
1st Aug 2025208 AMAQI
1st Aug 2025209 AMAQI
1st Aug 20252210 AMAQI
1st Aug 20252211 AMAQI
1st Aug 20252112 PMAQI
1st Aug 2025221 PMAQI
1st Aug 2025202 PMAQI
1st Aug 2025213 PMAQI
1st Aug 2025214 PMAQI
1st Aug 2025235 PMAQI
1st Aug 2025206 PMAQI
1st Aug 2025227 PMAQI
1st Aug 2025228 PMAQI
1st Aug 2025229 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252311 PMAQI
2nd Aug 20252312 AMAQI
2nd Aug 2025231 AMAQI
2nd Aug 2025202 AMAQI
2nd Aug 2025213 AMAQI
2nd Aug 2025234 AMAQI

17°C16/17°C

2nd Aug 2025245 AMAQI
2nd Aug 2025226 AMAQI
2nd Aug 2025217 AMAQI
2nd Aug 2025208 AMAQI
2nd Aug 2025209 AMAQI
2nd Aug 20252010 AMAQI
2nd Aug 20251911 AMAQI
2nd Aug 20252112 PMAQI
2nd Aug 2025211 PMAQI
2nd Aug 2025202 PMAQI
2nd Aug 2025203 PMAQI
2nd Aug 2025224 PMAQI
2nd Aug 2025215 PMAQI
2nd Aug 2025226 PMAQI
2nd Aug 2025217 PMAQI
2nd Aug 2025218 PMAQI
2nd Aug 2025219 PMAQI
2nd Aug 20252210 PMAQI
2nd Aug 20252211 PMAQI
3rd Aug 20252112 AMAQI
3rd Aug 2025221 AMAQI
3rd Aug 2025232 AMAQI
3rd Aug 2025223 AMAQI
3rd Aug 2025244 AMAQI

17°C16/17°C

3rd Aug 2025215 AMAQI
3rd Aug 2025286 AMAQI
3rd Aug 2025217 AMAQI
3rd Aug 2025238 AMAQI
3rd Aug 2025219 AMAQI
3rd Aug 20252210 AMAQI
3rd Aug 20252311 AMAQI
3rd Aug 20252212 PMAQI
3rd Aug 2025221 PMAQI
3rd Aug 2025212 PMAQI
3rd Aug 2025213 PMAQI
3rd Aug 2025214 PMAQI
3rd Aug 2025225 PMAQI
3rd Aug 2025236 PMAQI
3rd Aug 2025237 PMAQI
3rd Aug 2025238 PMAQI
3rd Aug 2025249 PMAQI
3rd Aug 20252410 PMAQI
3rd Aug 20252311 PMAQI
4th Aug 20252312 AMAQI
4th Aug 2025231 AMAQI
4th Aug 2025242 AMAQI
4th Aug 2025223 AMAQI
4th Aug 2025264 AMAQI

18°C17/18°C

4th Aug 2025225 AMAQI
4th Aug 2025226 AMAQI
4th Aug 2025227 AMAQI
4th Aug 2025218 AMAQI
4th Aug 2025229 AMAQI
4th Aug 20252310 AMAQI
4th Aug 20252311 AMAQI
4th Aug 20252312 PMAQI
4th Aug 2025231 PMAQI
4th Aug 2025232 PMAQI
4th Aug 2025233 PMAQI
4th Aug 2025224 PMAQI
4th Aug 2025235 PMAQI
4th Aug 2025236 PMAQI
4th Aug 2025227 PMAQI
4th Aug 2025228 PMAQI
4th Aug 2025239 PMAQI
4th Aug 20252410 PMAQI
4th Aug 20252311 PMAQI
5th Aug 20252312 AMAQI
5th Aug 2025231 AMAQI
5th Aug 2025222 AMAQI
5th Aug 2025213 AMAQI
5th Aug 2025204 AMAQI

18°C18/19°C

5th Aug 2025205 AMAQI
5th Aug 2025226 AMAQI
5th Aug 2025237 AMAQI
5th Aug 2025238 AMAQI
5th Aug 2025239 AMAQI
5th Aug 20252410 AMAQI
5th Aug 20252311 AMAQI
5th Aug 20252612 PMAQI
5th Aug 2025261 PMAQI
5th Aug 2025232 PMAQI
5th Aug 2025243 PMAQI
5th Aug 2025234 PMAQI
5th Aug 2025235 PMAQI
5th Aug 2025236 PMAQI
5th Aug 2025237 PMAQI
5th Aug 2025228 PMAQI
5th Aug 2025239 PMAQI
5th Aug 20252310 PMAQI
5th Aug 20252311 PMAQI
6th Aug 20252312 AMAQI
6th Aug 2025231 AMAQI
6th Aug 2025232 AMAQI
6th Aug 2025253 AMAQI
6th Aug 2025234 AMAQI

17°C16/17°C

6th Aug 2025275 AMAQI
6th Aug 2025276 AMAQI
6th Aug 2025247 AMAQI
6th Aug 2025258 AMAQI
6th Aug 2025299 AMAQI
6th Aug 20253010 AMAQI
6th Aug 20252811 AMAQI
6th Aug 20252812 PMAQI
6th Aug 2025271 PMAQI
6th Aug 2025272 PMAQI
6th Aug 2025263 PMAQI
6th Aug 2025264 PMAQI
6th Aug 2025265 PMAQI
6th Aug 2025256 PMAQI
6th Aug 2025277 PMAQI
6th Aug 2025278 PMAQI
6th Aug 2025259 PMAQI
6th Aug 20252410 PMAQI
6th Aug 20252511 PMAQI
7th Aug 20252612 AMAQI
7th Aug 2025241 AMAQI
7th Aug 2025262 AMAQI
7th Aug 2025263 AMAQI
7th Aug 2025254 AMAQI

17°C17/18°C

7th Aug 2025255 AMAQI
5 AM
7th Aug 2025316 AMAQI
7th Aug 2025267 AMAQI
7th Aug 2025278 AMAQI
7th Aug 2025289 AMAQI
7th Aug 20252810 AMAQI
7th Aug 20252811 AMAQI
7th Aug 20252712 PMAQI
7th Aug 2025251 PMAQI
1 PM
7th Aug 2025252 PMAQI
7th Aug 2025243 PMAQI
7th Aug 2025254 PMAQI
7th Aug 2025255 PMAQI
9 PM
1 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 9 PM

27AQI

17 hours / Day
510 hours / Month
Avg. Lowest Time
5 AM - 9 PM

27AQI

17 hours / Day
510 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 9 PM (Avg. 27), while the lowest AQI was between 5 AM to 9 PM (Avg. 27).
Night time
Avg. Highest Time
12 AM - 11 PM

27AQI

7 hours / Day
210 hours / Month
Avg. Lowest Time
12 AM - 11 PM

27AQI

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. 27), while the lowest AQI was between 12 AM to 11 PM (Avg. 27).

2025 Days Vs Air Quality

Saint Ouen, Saint Helier, Jersey

2025

89%

194

11%

24

Total number of days with different AQI categories in last 219 days in 2025 (146 days remaining)

Good
194 Days
Moderate
24 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 89%

Health Risk Level:

Low

In 2025, 89% of 219 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

Saint Ouen, Saint Helier, Jersey

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
31AQI
2nd January 2025
27AQI
3rd January 2025
29AQI
4th January 2025
53AQI
5th January 2025
33AQI
6th January 2025
31AQI
7th January 2025
27AQI
8th January 2025
30AQI
9th January 2025
30AQI
10th January 2025
24AQI
11th January 2025
36AQI
12th January 2025
45AQI
13th January 2025
47AQI
14th January 2025
54AQI
15th January 2025
64AQI
16th January 2025
47AQI
17th January 2025
47AQI
18th January 2025
53AQI
19th January 2025
43AQI
20th January 2025
43AQI
21st January 2025
43AQI
22nd January 2025
46AQI
23rd January 2025
36AQI
24th January 2025
42AQI
25th January 2025
29AQI
26th January 2025
29AQI
27th January 2025
31AQI
28th January 2025
34AQI
29th January 2025
32AQI
30th January 2025
29AQI
31st January 2025
31AQI
1st February 2025
29AQI
2nd February 2025
30AQI
3rd February 2025
34AQI
4th February 2025
30AQI
5th February 2025
38AQI
6th February 2025
43AQI
7th February 2025
48AQI
8th February 2025
30AQI
9th February 2025
34AQI
10th February 2025
30AQI
11th February 2025
47AQI
12th February 2025
51AQI
13th February 2025
53AQI
14th February 2025
55AQI
15th February 2025
61AQI
16th February 2025
58AQI
17th February 2025
63AQI
18th February 2025
65AQI
19th February 2025
61AQI
20th February 2025
44AQI
21st February 2025
40AQI
22nd February 2025
38AQI
23rd February 2025
33AQI
24th February 2025
35AQI
25th February 2025
37AQI
26th February 2025
32AQI
27th February 2025
29AQI
28th February 2025
31AQI
1st March 2025
34AQI
2nd March 2025
44AQI
3rd March 2025
54AQI
4th March 2025
67AQI
5th March 2025
67AQI
6th March 2025
52AQI
7th March 2025
43AQI
8th March 2025
34AQI
9th March 2025
32AQI
10th March 2025
32AQI
11th March 2025
55AQI
12th March 2025
40AQI
13th March 2025
30AQI
14th March 2025
28AQI
15th March 2025
29AQI
16th March 2025
33AQI
17th March 2025
37AQI
18th March 2025
37AQI
19th March 2025
35AQI
20th March 2025
35AQI
21st March 2025
46AQI
22nd March 2025
25AQI
23rd March 2025
25AQI
24th March 2025
40AQI
25th March 2025
54AQI
26th March 2025
41AQI
27th March 2025
39AQI
28th March 2025
33AQI
29th March 2025
29AQI
30th March 2025
32AQI
31st March 2025
46AQI
1st April 2025
42AQI
2nd April 2025
38AQI
3rd April 2025
36AQI
4th April 2025
32AQI
5th April 2025
57AQI
6th April 2025
51AQI
7th April 2025
38AQI
8th April 2025
43AQI
9th April 2025
50AQI
10th April 2025
47AQI
11th April 2025
50AQI
12th April 2025
40AQI
13th April 2025
37AQI
14th April 2025
24AQI
15th April 2025
20AQI
16th April 2025
19AQI
17th April 2025
16AQI
18th April 2025
19AQI
19th April 2025
18AQI
20th April 2025
36AQI
21st April 2025
31AQI
22nd April 2025
25AQI
23rd April 2025
25AQI
24th April 2025
28AQI
25th April 2025
40AQI
26th April 2025
51AQI
27th April 2025
54AQI
28th April 2025
48AQI
29th April 2025
41AQI
30th April 2025
46AQI
1st May 2025
35AQI
2nd May 2025
27AQI
3rd May 2025
57AQI
4th May 2025
30AQI
5th May 2025
18AQI
6th May 2025
14AQI
7th May 2025
14AQI
8th May 2025
20AQI
9th May 2025
26AQI
10th May 2025
28AQI
11th May 2025
23AQI
12th May 2025
28AQI
13th May 2025
24AQI
14th May 2025
37AQI
15th May 2025
24AQI
16th May 2025
19AQI
17th May 2025
31AQI
18th May 2025
34AQI
19th May 2025
39AQI
20th May 2025
27AQI
21st May 2025
28AQI
22nd May 2025
34AQI
23rd May 2025
34AQI
24th May 2025
38AQI
25th May 2025
22AQI
26th May 2025
23AQI
27th May 2025
25AQI
28th May 2025
24AQI
29th May 2025
19AQI
30th May 2025
19AQI
31st May 2025
24AQI
1st June 2025
29AQI
2nd June 2025
23AQI
3rd June 2025
29AQI
4th June 2025
24AQI
5th June 2025
16AQI
6th June 2025
14AQI
7th June 2025
14AQI
8th June 2025
16AQI
9th June 2025
46AQI
10th June 2025
31AQI
11th June 2025
20AQI
12th June 2025
33AQI
13th June 2025
29AQI
14th June 2025
31AQI
15th June 2025
31AQI
16th June 2025
27AQI
17th June 2025
38AQI
18th June 2025
37AQI
19th June 2025
32AQI
20th June 2025
34AQI
21st June 2025
37AQI
22nd June 2025
40AQI
23rd June 2025
18AQI
24th June 2025
14AQI
25th June 2025
14AQI
26th June 2025
13AQI
27th June 2025
13AQI
28th June 2025
12AQI
29th June 2025
20AQI
30th June 2025
26AQI
1st July 2025
37AQI
2nd July 2025
18AQI
3rd July 2025
12AQI
4th July 2025
15AQI
5th July 2025
19AQI
6th July 2025
15AQI
7th July 2025
14AQI
8th July 2025
17AQI
9th July 2025
20AQI
10th July 2025
21AQI
11th July 2025
16AQI
12th July 2025
16AQI
13th July 2025
29AQI
14th July 2025
26AQI
15th July 2025
15AQI
16th July 2025
38AQI
17th July 2025
20AQI
18th July 2025
23AQI
19th July 2025
23AQI
20th July 2025
14AQI
21st July 2025
13AQI
22nd July 2025
12AQI
23rd July 2025
13AQI
24th July 2025
45AQI
25th July 2025
56AQI
26th July 2025
30AQI
27th July 2025
19AQI
28th July 2025
24AQI
29th July 2025
15AQI
30th July 2025
18AQI
31st July 2025
20AQI
1st August 2025
22AQI
2nd August 2025
25AQI
3rd August 2025
24AQI
4th August 2025
23AQI
5th August 2025
22AQI
6th August 2025
25AQI

38AQI

42AQI

40AQI

37AQI

27AQI

25AQI

22AQI

24AQI

No. of days

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

202533AQI

27
4
20
8
25
6
26
4
30
1
30
30
1
6
194
24

Highest AQI recorded in

February

42AQI

Lowest AQI recorded in

July

22AQI

202430AQI

15
2
1
1
12
30
31
28
3
13
28
2
28
3
190
7

Highest AQI recorded in

April

50AQI

Lowest AQI recorded in

March

21AQI

202312AQI

31
27
1
29
2
27
3
31
30
28
3
26
5
232
11

Highest AQI recorded in

December

36AQI

Lowest AQI recorded in

July

3AQI

202212AQI

2
30
26
4
58
4

Highest AQI recorded in

December

21AQI

Lowest AQI recorded in

October

2AQI

Most & Least Polluted Years Over the Last 4 Years

Most Polluted Year Recorded
2025(Avg.)
33AQI
Least Polluted Year Recorded
2023(Avg.)
12AQI

Saint Ouen's annual 2025 AQI (33) shows an average percentage change of 115.04% (worsened AQI) compared to previous years: 2022 (12), 2023 (12), 2024 (30).