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+
September Air Quality Analysis
Saint Ouen, Saint Helier, Jersey
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Sep 2024
38AQILowest AQI recorded on
21st Sep 2025
10AQISame Day Analysis (25th September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 12 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 25th Sep - 26th Sep 2025
Saint Ouen, Saint Helier, Jersey
AQI
Day
Night
.
6 AM25th Sep 2025
7 PM
5 AM26th Sep 2025
Day time
Avg. Highest Time
1PM25th Sep
34AQI
Avg. Lowest Time
9AM25th Sep
20AQI
Night time
Avg. Highest Time
4AM26th Sep
50AQI
Avg. Lowest Time
6AM25th Sep
19AQI
In the last 24 hours,
Saint Ouen's AQI reached its highest point of 50 at 4 AM during the Night, while the lowest point, 19, was recorded at 6 AM during the Night between 25th Sep and 26th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Saint Ouen, Saint Helier, Jersey
AugSep
27th - 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 - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th
Day
Night
27th Aug 2025326 AMAQI
27th Aug 2025327 AMAQI
27th Aug 2025328 AMAQI
27th Aug 2025349 AMAQI
27th Aug 20253510 AMAQI
27th Aug 20253511 AMAQI
27th Aug 20253512 PMAQI
27th Aug 2025311 PMAQI
27th Aug 2025322 PMAQI
27th Aug 2025303 PMAQI
27th Aug 2025284 PMAQI
27th Aug 2025275 PMAQI
27th Aug 2025286 PMAQI
27th Aug 2025307 PMAQI
27th Aug 2025308 PMAQI
27th Aug 2025329 PMAQI
27th Aug 20253410 PMAQI
27th Aug 20253311 PMAQI
28th Aug 20253412 AMAQI
28th Aug 2025311 AMAQI
28th Aug 2025312 AMAQI
28th Aug 2025313 AMAQI
28th Aug 2025304 AMAQI
28th Aug 2025265 AMAQI
18°C17/19°C
28th Aug 2025266 AMAQI
28th Aug 2025277 AMAQI
28th Aug 2025258 AMAQI
28th Aug 2025249 AMAQI
28th Aug 20253010 AMAQI
28th Aug 20253011 AMAQI
28th Aug 20252812 PMAQI
28th Aug 2025251 PMAQI
28th Aug 2025262 PMAQI
28th Aug 2025273 PMAQI
28th Aug 2025274 PMAQI
28th Aug 2025275 PMAQI
28th Aug 2025276 PMAQI
28th Aug 2025267 PMAQI
28th Aug 2025258 PMAQI
28th Aug 2025269 PMAQI
28th Aug 20252810 PMAQI
28th Aug 20252811 PMAQI
29th Aug 20252812 AMAQI
29th Aug 2025261 AMAQI
29th Aug 2025262 AMAQI
29th Aug 2025243 AMAQI
29th Aug 2025204 AMAQI
29th Aug 2025205 AMAQI
17°C16/18°C
29th Aug 2025206 AMAQI
29th Aug 2025217 AMAQI
29th Aug 2025238 AMAQI
29th Aug 2025219 AMAQI
29th Aug 20252010 AMAQI
29th Aug 20251911 AMAQI
29th Aug 20252112 PMAQI
29th Aug 2025221 PMAQI
29th Aug 2025222 PMAQI
29th Aug 2025233 PMAQI
29th Aug 2025224 PMAQI
29th Aug 2025225 PMAQI
29th Aug 2025236 PMAQI
29th Aug 2025217 PMAQI
29th Aug 2025218 PMAQI
29th Aug 2025249 PMAQI
29th Aug 20252210 PMAQI
29th Aug 20252311 PMAQI
30th Aug 20252312 AMAQI
30th Aug 2025231 AMAQI
30th Aug 2025212 AMAQI
30th Aug 2025203 AMAQI
30th Aug 2025194 AMAQI
30th Aug 2025235 AMAQI
17°C16/18°C
30th Aug 2025216 AMAQI
30th Aug 2025217 AMAQI
30th Aug 2025198 AMAQI
30th Aug 2025179 AMAQI
30th Aug 20252210 AMAQI
30th Aug 20252011 AMAQI
30th Aug 20252012 PMAQI
30th Aug 2025211 PMAQI
30th Aug 2025212 PMAQI
30th Aug 2025213 PMAQI
30th Aug 2025204 PMAQI
30th Aug 2025205 PMAQI
30th Aug 2025196 PMAQI
30th Aug 2025207 PMAQI
30th Aug 2025198 PMAQI
30th Aug 2025209 PMAQI
30th Aug 20252010 PMAQI
30th Aug 20252011 PMAQI
31st Aug 20252012 AMAQI
31st Aug 2025201 AMAQI
31st Aug 2025202 AMAQI
31st Aug 2025203 AMAQI
31st Aug 2025174 AMAQI
31st Aug 2025165 AMAQI
18°C17/20°C
31st Aug 2025176 AMAQI
31st Aug 2025187 AMAQI
31st Aug 2025198 AMAQI
31st Aug 2025179 AMAQI
31st Aug 20251810 AMAQI
31st Aug 20251811 AMAQI
31st Aug 20251812 PMAQI
31st Aug 2025191 PMAQI
31st Aug 2025192 PMAQI
31st Aug 2025193 PMAQI
31st Aug 2025204 PMAQI
31st Aug 2025195 PMAQI
31st Aug 2025196 PMAQI
31st Aug 2025207 PMAQI
31st Aug 2025208 PMAQI
31st Aug 2025229 PMAQI
31st Aug 20252010 PMAQI
31st Aug 20252011 PMAQI
1st Sep 20252012 AMAQI
1st Sep 2025201 AMAQI
1st Sep 2025192 AMAQI
1st Sep 2025203 AMAQI
1st Sep 2025194 AMAQI
1st Sep 2025195 AMAQI
17°C17/19°C
1st Sep 2025186 AMAQI
1st Sep 2025197 AMAQI
1st Sep 2025228 AMAQI
1st Sep 2025209 AMAQI
1st Sep 20252110 AMAQI
1st Sep 20252211 AMAQI
1st Sep 20252212 PMAQI
1st Sep 2025221 PMAQI
1st Sep 2025212 PMAQI
1st Sep 2025213 PMAQI
1st Sep 2025214 PMAQI
1st Sep 2025205 PMAQI
1st Sep 2025206 PMAQI
1st Sep 2025217 PMAQI
1st Sep 2025208 PMAQI
1st Sep 2025199 PMAQI
1st Sep 20252110 PMAQI
1st Sep 20252011 PMAQI
2nd Sep 20252112 AMAQI
2nd Sep 2025221 AMAQI
2nd Sep 2025192 AMAQI
2nd Sep 2025193 AMAQI
2nd Sep 2025184 AMAQI
2nd Sep 2025165 AMAQI
17°C16/17°C
2nd Sep 2025166 AMAQI
2nd Sep 2025167 AMAQI
2nd Sep 2025198 AMAQI
2nd Sep 2025189 AMAQI
2nd Sep 20251910 AMAQI
2nd Sep 20252011 AMAQI
2nd Sep 20252212 PMAQI
2nd Sep 2025221 PMAQI
2nd Sep 2025192 PMAQI
2nd Sep 2025183 PMAQI
2nd Sep 2025194 PMAQI
2nd Sep 2025185 PMAQI
2nd Sep 2025196 PMAQI
2nd Sep 2025197 PMAQI
2nd Sep 2025198 PMAQI
2nd Sep 2025209 PMAQI
2nd Sep 20252010 PMAQI
2nd Sep 20252011 PMAQI
3rd Sep 20252212 AMAQI
3rd Sep 2025211 AMAQI
3rd Sep 2025182 AMAQI
3rd Sep 2025193 AMAQI
3rd Sep 2025204 AMAQI
3rd Sep 2025185 AMAQI
17°C16/18°C
3rd Sep 2025206 AMAQI
3rd Sep 2025207 AMAQI
3rd Sep 2025198 AMAQI
3rd Sep 2025179 AMAQI
3rd Sep 20252010 AMAQI
3rd Sep 20251911 AMAQI
3rd Sep 20252112 PMAQI
3rd Sep 2025201 PMAQI
3rd Sep 2025202 PMAQI
3rd Sep 2025203 PMAQI
3rd Sep 2025204 PMAQI
3rd Sep 2025205 PMAQI
3rd Sep 2025226 PMAQI
3rd Sep 2025207 PMAQI
3rd Sep 2025208 PMAQI
3rd Sep 2025209 PMAQI
3rd Sep 20251910 PMAQI
3rd Sep 20252011 PMAQI
4th Sep 20251912 AMAQI
4th Sep 2025201 AMAQI
4th Sep 2025202 AMAQI
4th Sep 2025203 AMAQI
4th Sep 2025204 AMAQI
4th Sep 2025195 AMAQI
18°C17/19°C
4th Sep 2025206 AMAQI
4th Sep 2025217 AMAQI
4th Sep 2025228 AMAQI
4th Sep 2025229 AMAQI
4th Sep 20252510 AMAQI
4th Sep 20252811 AMAQI
4th Sep 20252812 PMAQI
4th Sep 2025291 PMAQI
4th Sep 2025312 PMAQI
4th Sep 2025253 PMAQI
4th Sep 2025244 PMAQI
4th Sep 2025265 PMAQI
4th Sep 2025276 PMAQI
4th Sep 2025197 PMAQI
4th Sep 2025198 PMAQI
4th Sep 2025209 PMAQI
4th Sep 20251910 PMAQI
4th Sep 20252011 PMAQI
5th Sep 20252012 AMAQI
5th Sep 2025191 AMAQI
5th Sep 2025192 AMAQI
5th Sep 2025183 AMAQI
5th Sep 2025184 AMAQI
5th Sep 2025175 AMAQI
17°C16/17°C
5th Sep 2025166 AMAQI
5th Sep 2025197 AMAQI
5th Sep 2025208 AMAQI
5th Sep 2025209 AMAQI
5th Sep 20252110 AMAQI
5th Sep 20252211 AMAQI
5th Sep 20252112 PMAQI
5th Sep 2025191 PMAQI
5th Sep 2025192 PMAQI
5th Sep 2025203 PMAQI
5th Sep 2025194 PMAQI
5th Sep 2025195 PMAQI
5th Sep 2025216 PMAQI
5th Sep 2025187 PMAQI
5th Sep 2025188 PMAQI
5th Sep 2025199 PMAQI
5th Sep 20251810 PMAQI
5th Sep 20251911 PMAQI
6th Sep 20251912 AMAQI
6th Sep 2025191 AMAQI
6th Sep 2025192 AMAQI
6th Sep 2025183 AMAQI
6th Sep 2025194 AMAQI
6th Sep 2025255 AMAQI
17°C16/17°C
6th Sep 2025186 AMAQI
6th Sep 2025197 AMAQI
6th Sep 2025218 AMAQI
6th Sep 2025199 AMAQI
6th Sep 20251710 AMAQI
6th Sep 20252011 AMAQI
6th Sep 20251812 PMAQI
6th Sep 2025181 PMAQI
6th Sep 2025182 PMAQI
6th Sep 2025183 PMAQI
6th Sep 2025184 PMAQI
6th Sep 2025185 PMAQI
6th Sep 2025176 PMAQI
6th Sep 2025187 PMAQI
6th Sep 2025198 PMAQI
6th Sep 2025209 PMAQI
6th Sep 20252010 PMAQI
6th Sep 20252011 PMAQI
7th Sep 20252112 AMAQI
7th Sep 2025201 AMAQI
7th Sep 2025192 AMAQI
7th Sep 2025193 AMAQI
7th Sep 2025204 AMAQI
7th Sep 2025205 AMAQI
19°C16/22°C
7th Sep 2025206 AMAQI
7th Sep 2025207 AMAQI
7th Sep 2025208 AMAQI
7th Sep 2025209 AMAQI
7th Sep 20252110 AMAQI
7th Sep 20252211 AMAQI
7th Sep 20252112 PMAQI
7th Sep 2025241 PMAQI
7th Sep 2025242 PMAQI
7th Sep 2025243 PMAQI
7th Sep 2025234 PMAQI
7th Sep 2025235 PMAQI
7th Sep 2025236 PMAQI
7th Sep 2025227 PMAQI
7th Sep 2025248 PMAQI
7th Sep 2025239 PMAQI
7th Sep 20252210 PMAQI
7th Sep 20252111 PMAQI
8th Sep 20252112 AMAQI
8th Sep 2025211 AMAQI
8th Sep 2025212 AMAQI
8th Sep 2025223 AMAQI
8th Sep 2025234 AMAQI
8th Sep 2025245 AMAQI
19°C17/20°C
8th Sep 2025236 AMAQI
8th Sep 2025247 AMAQI
8th Sep 2025248 AMAQI
8th Sep 2025239 AMAQI
8th Sep 20252410 AMAQI
8th Sep 20253211 AMAQI
8th Sep 20253412 PMAQI
8th Sep 2025241 PMAQI
8th Sep 2025232 PMAQI
8th Sep 2025233 PMAQI
8th Sep 2025224 PMAQI
8th Sep 2025245 PMAQI
8th Sep 2025236 PMAQI
8th Sep 2025237 PMAQI
8th Sep 2025248 PMAQI
8th Sep 2025259 PMAQI
8th Sep 20252410 PMAQI
8th Sep 20252411 PMAQI
9th Sep 20252512 AMAQI
9th Sep 2025231 AMAQI
9th Sep 2025252 AMAQI
9th Sep 2025223 AMAQI
9th Sep 2025234 AMAQI
9th Sep 2025235 AMAQI
16°C16/16°C
9th Sep 2025266 AMAQI
9th Sep 2025257 AMAQI
9th Sep 2025208 AMAQI
9th Sep 2025209 AMAQI
9th Sep 20252610 AMAQI
9th Sep 20252311 AMAQI
9th Sep 20252612 PMAQI
9th Sep 2025221 PMAQI
9th Sep 2025222 PMAQI
9th Sep 2025203 PMAQI
9th Sep 2025224 PMAQI
9th Sep 2025225 PMAQI
9th Sep 2025226 PMAQI
9th Sep 2025227 PMAQI
9th Sep 2025198 PMAQI
9th Sep 2025219 PMAQI
9th Sep 20252210 PMAQI
9th Sep 20252211 PMAQI
10th Sep 20252212 AMAQI
10th Sep 2025231 AMAQI
10th Sep 2025212 AMAQI
10th Sep 2025203 AMAQI
10th Sep 2025184 AMAQI
10th Sep 2025185 AMAQI
17°C15/19°C
10th Sep 2025206 AMAQI
10th Sep 2025207 AMAQI
10th Sep 2025228 AMAQI
10th Sep 2025229 AMAQI
10th Sep 20252210 AMAQI
10th Sep 20252311 AMAQI
10th Sep 20252112 PMAQI
10th Sep 2025231 PMAQI
10th Sep 2025222 PMAQI
10th Sep 2025203 PMAQI
10th Sep 2025214 PMAQI
10th Sep 2025215 PMAQI
10th Sep 2025206 PMAQI
10th Sep 2025197 PMAQI
10th Sep 2025218 PMAQI
10th Sep 2025209 PMAQI
10th Sep 20252110 PMAQI
10th Sep 20252111 PMAQI
11th Sep 20252112 AMAQI
11th Sep 2025211 AMAQI
11th Sep 2025212 AMAQI
11th Sep 2025203 AMAQI
11th Sep 2025184 AMAQI
11th Sep 2025195 AMAQI
16°C16/17°C
11th Sep 2025196 AMAQI
11th Sep 2025207 AMAQI
11th Sep 2025218 AMAQI
11th Sep 2025239 AMAQI
11th Sep 20252410 AMAQI
11th Sep 20252211 AMAQI
11th Sep 20252212 PMAQI
11th Sep 2025211 PMAQI
11th Sep 2025212 PMAQI
11th Sep 2025213 PMAQI
11th Sep 2025204 PMAQI
11th Sep 2025205 PMAQI
11th Sep 2025206 PMAQI
11th Sep 2025207 PMAQI
11th Sep 2025208 PMAQI
11th Sep 2025219 PMAQI
11th Sep 20252110 PMAQI
11th Sep 20252111 PMAQI
12th Sep 20252112 AMAQI
12th Sep 2025211 AMAQI
12th Sep 2025182 AMAQI
12th Sep 2025163 AMAQI
12th Sep 2025154 AMAQI
12th Sep 2025175 AMAQI
16°C15/16°C
12th Sep 2025176 AMAQI
12th Sep 2025177 AMAQI
12th Sep 2025188 AMAQI
12th Sep 2025179 AMAQI
12th Sep 20251710 AMAQI
12th Sep 20251711 AMAQI
12th Sep 20251812 PMAQI
12th Sep 2025171 PMAQI
12th Sep 2025172 PMAQI
12th Sep 2025183 PMAQI
12th Sep 2025184 PMAQI
12th Sep 2025185 PMAQI
12th Sep 2025176 PMAQI
12th Sep 2025177 PMAQI
12th Sep 2025198 PMAQI
12th Sep 2025189 PMAQI
12th Sep 20251810 PMAQI
12th Sep 20251811 PMAQI
13th Sep 20251812 AMAQI
13th Sep 2025181 AMAQI
13th Sep 2025182 AMAQI
13th Sep 2025173 AMAQI
13th Sep 2025174 AMAQI
13th Sep 2025155 AMAQI
16°C15/16°C
13th Sep 2025146 AMAQI
13th Sep 2025157 AMAQI
13th Sep 2025158 AMAQI
13th Sep 2025179 AMAQI
13th Sep 20251510 AMAQI
13th Sep 20251511 AMAQI
13th Sep 20251712 PMAQI
13th Sep 2025171 PMAQI
13th Sep 2025172 PMAQI
13th Sep 2025173 PMAQI
13th Sep 2025174 PMAQI
13th Sep 2025175 PMAQI
13th Sep 2025166 PMAQI
13th Sep 2025177 PMAQI
13th Sep 2025178 PMAQI
13th Sep 2025169 PMAQI
13th Sep 20251810 PMAQI
13th Sep 20251711 PMAQI
14th Sep 20251812 AMAQI
14th Sep 2025171 AMAQI
14th Sep 2025172 AMAQI
14th Sep 2025173 AMAQI
14th Sep 2025184 AMAQI
14th Sep 2025175 AMAQI
16°C15/17°C
14th Sep 2025176 AMAQI
14th Sep 2025157 AMAQI
14th Sep 2025178 AMAQI
14th Sep 2025179 AMAQI
14th Sep 20251710 AMAQI
14th Sep 20251611 AMAQI
14th Sep 20251612 PMAQI
14th Sep 2025161 PMAQI
14th Sep 2025162 PMAQI
14th Sep 2025173 PMAQI
14th Sep 2025164 PMAQI
14th Sep 2025165 PMAQI
14th Sep 2025176 PMAQI
14th Sep 2025167 PMAQI
14th Sep 2025168 PMAQI
14th Sep 2025179 PMAQI
14th Sep 20251710 PMAQI
14th Sep 20251711 PMAQI
15th Sep 20251712 AMAQI
15th Sep 2025171 AMAQI
15th Sep 2025172 AMAQI
15th Sep 2025173 AMAQI
15th Sep 2025164 AMAQI
15th Sep 2025175 AMAQI
17°C15/19°C
15th Sep 2025176 AMAQI
15th Sep 2025167 AMAQI
15th Sep 2025178 AMAQI
15th Sep 2025189 AMAQI
15th Sep 20252110 AMAQI
15th Sep 20252511 AMAQI
15th Sep 20252612 PMAQI
15th Sep 2025251 PMAQI
15th Sep 2025222 PMAQI
15th Sep 2025213 PMAQI
15th Sep 2025214 PMAQI
15th Sep 2025225 PMAQI
15th Sep 2025226 PMAQI
15th Sep 2025217 PMAQI
15th Sep 2025238 PMAQI
15th Sep 2025199 PMAQI
15th Sep 20251910 PMAQI
15th Sep 20251911 PMAQI
16th Sep 20251912 AMAQI
16th Sep 2025181 AMAQI
16th Sep 2025212 AMAQI
16th Sep 2025203 AMAQI
16th Sep 2025224 AMAQI
16th Sep 2025195 AMAQI
16°C16/16°C
16th Sep 2025196 AMAQI
16th Sep 2025217 AMAQI
16th Sep 2025218 AMAQI
16th Sep 2025249 AMAQI
16th Sep 20252610 AMAQI
16th Sep 20252411 AMAQI
16th Sep 20252412 PMAQI
16th Sep 2025251 PMAQI
16th Sep 2025212 PMAQI
16th Sep 2025233 PMAQI
16th Sep 2025224 PMAQI
16th Sep 2025235 PMAQI
16th Sep 2025226 PMAQI
16th Sep 2025227 PMAQI
16th Sep 2025228 PMAQI
16th Sep 2025219 PMAQI
16th Sep 20252110 PMAQI
16th Sep 20252211 PMAQI
17th Sep 20252212 AMAQI
17th Sep 2025201 AMAQI
17th Sep 2025202 AMAQI
17th Sep 2025203 AMAQI
17th Sep 2025204 AMAQI
17th Sep 2025235 AMAQI
16°C16/16°C
17th Sep 2025196 AMAQI
17th Sep 2025197 AMAQI
17th Sep 2025198 AMAQI
17th Sep 2025189 AMAQI
17th Sep 20252310 AMAQI
17th Sep 20252111 AMAQI
17th Sep 20252112 PMAQI
17th Sep 2025221 PMAQI
17th Sep 2025192 PMAQI
17th Sep 2025203 PMAQI
17th Sep 2025194 PMAQI
17th Sep 2025205 PMAQI
17th Sep 2025216 PMAQI
17th Sep 2025197 PMAQI
17th Sep 2025208 PMAQI
17th Sep 2025209 PMAQI
17th Sep 20252010 PMAQI
17th Sep 20251911 PMAQI
18th Sep 20251812 AMAQI
18th Sep 2025191 AMAQI
18th Sep 2025182 AMAQI
18th Sep 2025193 AMAQI
18th Sep 2025244 AMAQI
18th Sep 2025245 AMAQI
17°C16/18°C
18th Sep 2025246 AMAQI
18th Sep 2025277 AMAQI
18th Sep 2025258 AMAQI
18th Sep 2025259 AMAQI
18th Sep 20252710 AMAQI
18th Sep 20252911 AMAQI
18th Sep 20253012 PMAQI
18th Sep 2025281 PMAQI
18th Sep 2025242 PMAQI
18th Sep 2025223 PMAQI
18th Sep 2025224 PMAQI
18th Sep 2025225 PMAQI
18th Sep 2025236 PMAQI
18th Sep 2025227 PMAQI
18th Sep 2025228 PMAQI
18th Sep 2025239 PMAQI
18th Sep 20252510 PMAQI
18th Sep 20252711 PMAQI
19th Sep 20252612 AMAQI
19th Sep 2025261 AMAQI
19th Sep 2025292 AMAQI
19th Sep 2025353 AMAQI
19th Sep 2025454 AMAQI
19th Sep 2025435 AMAQI
18°C17/19°C
19th Sep 2025356 AMAQI
19th Sep 2025347 AMAQI
19th Sep 2025348 AMAQI
19th Sep 2025349 AMAQI
19th Sep 20253610 AMAQI
19th Sep 20253711 AMAQI
19th Sep 20253812 PMAQI
19th Sep 2025341 PMAQI
19th Sep 2025332 PMAQI
19th Sep 2025333 PMAQI
19th Sep 2025344 PMAQI
19th Sep 2025335 PMAQI
19th Sep 2025316 PMAQI
19th Sep 2025297 PMAQI
19th Sep 2025308 PMAQI
19th Sep 2025329 PMAQI
19th Sep 20253610 PMAQI
19th Sep 20253711 PMAQI
20th Sep 20253512 AMAQI
20th Sep 2025371 AMAQI
20th Sep 2025332 AMAQI
20th Sep 2025353 AMAQI
20th Sep 2025404 AMAQI
20th Sep 2025385 AMAQI
18°C17/19°C
20th Sep 2025386 AMAQI
20th Sep 2025387 AMAQI
20th Sep 2025358 AMAQI
20th Sep 2025359 AMAQI
20th Sep 20253610 AMAQI
20th Sep 20253311 AMAQI
20th Sep 20253412 PMAQI
20th Sep 2025361 PMAQI
20th Sep 2025362 PMAQI
20th Sep 2025353 PMAQI
20th Sep 2025354 PMAQI
20th Sep 2025335 PMAQI
20th Sep 2025346 PMAQI
20th Sep 2025357 PMAQI
20th Sep 2025368 PMAQI
20th Sep 2025359 PMAQI
20th Sep 20253410 PMAQI
20th Sep 20253311 PMAQI
21st Sep 20253312 AMAQI
21st Sep 2025331 AMAQI
21st Sep 2025322 AMAQI
21st Sep 2025313 AMAQI
21st Sep 2025264 AMAQI
21st Sep 2025215 AMAQI
17°C15/18°C
21st Sep 2025186 AMAQI
21st Sep 2025187 AMAQI
21st Sep 2025198 AMAQI
21st Sep 2025229 AMAQI
21st Sep 20252210 AMAQI
21st Sep 20252211 AMAQI
21st Sep 20252212 PMAQI
21st Sep 2025211 PMAQI
21st Sep 2025232 PMAQI
21st Sep 2025233 PMAQI
21st Sep 2025244 PMAQI
21st Sep 2025245 PMAQI
21st Sep 2025246 PMAQI
21st Sep 2025237 PMAQI
21st Sep 2025248 PMAQI
21st Sep 2025259 PMAQI
21st Sep 20252210 PMAQI
21st Sep 20252311 PMAQI
22nd Sep 20252412 AMAQI
22nd Sep 2025251 AMAQI
22nd Sep 2025212 AMAQI
22nd Sep 2025173 AMAQI
22nd Sep 2025174 AMAQI
22nd Sep 2025185 AMAQI
14°C13/14°C
22nd Sep 2025206 AMAQI
22nd Sep 2025187 AMAQI
22nd Sep 2025178 AMAQI
22nd Sep 2025179 AMAQI
22nd Sep 20251710 AMAQI
22nd Sep 20251711 AMAQI
22nd Sep 20251812 PMAQI
22nd Sep 2025191 PMAQI
22nd Sep 2025192 PMAQI
22nd Sep 2025193 PMAQI
22nd Sep 2025204 PMAQI
22nd Sep 2025205 PMAQI
22nd Sep 2025196 PMAQI
22nd Sep 2025207 PMAQI
22nd Sep 2025188 PMAQI
22nd Sep 2025189 PMAQI
22nd Sep 20252010 PMAQI
22nd Sep 20251911 PMAQI
23rd Sep 20251912 AMAQI
23rd Sep 2025201 AMAQI
23rd Sep 2025202 AMAQI
23rd Sep 2025193 AMAQI
23rd Sep 2025194 AMAQI
23rd Sep 2025175 AMAQI
14°C13/15°C
23rd Sep 2025196 AMAQI
23rd Sep 2025187 AMAQI
23rd Sep 2025198 AMAQI
23rd Sep 2025189 AMAQI
23rd Sep 20251910 AMAQI
23rd Sep 20251911 AMAQI
23rd Sep 20251812 PMAQI
23rd Sep 2025191 PMAQI
23rd Sep 2025182 PMAQI
23rd Sep 2025183 PMAQI
23rd Sep 2025184 PMAQI
23rd Sep 2025175 PMAQI
23rd Sep 2025166 PMAQI
23rd Sep 2025177 PMAQI
23rd Sep 2025188 PMAQI
23rd Sep 2025209 PMAQI
23rd Sep 20251910 PMAQI
23rd Sep 20251911 PMAQI
24th Sep 20251912 AMAQI
24th Sep 2025191 AMAQI
24th Sep 2025182 AMAQI
24th Sep 2025183 AMAQI
24th Sep 2025174 AMAQI
24th Sep 2025155 AMAQI
14°C13/15°C
24th Sep 2025156 AMAQI
24th Sep 2025157 AMAQI
24th Sep 2025168 AMAQI
24th Sep 2025169 AMAQI
24th Sep 20251910 AMAQI
24th Sep 20251811 AMAQI
24th Sep 20252112 PMAQI
24th Sep 2025201 PMAQI
24th Sep 2025202 PMAQI
24th Sep 2025213 PMAQI
24th Sep 2025224 PMAQI
24th Sep 2025205 PMAQI
24th Sep 2025236 PMAQI
24th Sep 2025227 PMAQI
24th Sep 2025228 PMAQI
24th Sep 2025209 PMAQI
24th Sep 20251810 PMAQI
24th Sep 20251711 PMAQI
25th Sep 20251712 AMAQI
25th Sep 2025171 AMAQI
25th Sep 2025162 AMAQI
25th Sep 2025163 AMAQI
25th Sep 2025204 AMAQI
25th Sep 2025195 AMAQI
15°C15/16°C
25th Sep 2025196 AMAQI
25th Sep 2025217 AMAQI
25th Sep 2025208 AMAQI
25th Sep 2025209 AMAQI
25th Sep 20252410 AMAQI
25th Sep 20252511 AMAQI
25th Sep 20252912 PMAQI
25th Sep 2025341 PMAQI
25th Sep 2025322 PMAQI
25th Sep 2025293 PMAQI
25th Sep 2025324 PMAQI
25th Sep 2025315 PMAQI
25th Sep 2025306 PMAQI
25th Sep 2025327 PMAQI
25th Sep 2025428 PMAQI
25th Sep 2025399 PMAQI
25th Sep 20254510 PMAQI
25th Sep 20254011 PMAQI
26th Sep 20254212 AMAQI
26th Sep 2025431 AMAQI
26th Sep 2025442 AMAQI
26th Sep 2025483 AMAQI
26th Sep 2025504 AMAQI
26th Sep 2025475 AMAQI
15°C15/16°C
26th Sep 2025496 AMAQI
6 AM26th Sep 2025487 AMAQI
26th Sep 2025488 AMAQI
26th Sep 2025489 AMAQI
26th Sep 20254510 AMAQI
26th Sep 20254011 AMAQI
26th Sep 20254012 PMAQI
12 PM26th Sep 2025361 PMAQI
26th Sep 2025372 PMAQI
26th Sep 2025373 PMAQI
26th Sep 2025324 PMAQI
26th Sep 2025305 PMAQI
26th Sep 2025296 PMAQI
26th Sep 2025267 PMAQI
7 PM26th Sep 2025308 PMAQI
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
10 AM - 1 PM
24AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
6 AM - 9 AM
22AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 1 PM (Avg. 24), while the lowest AQI was between 6 AM to 9 AM (Avg. 22).
Night time
Avg. Highest Time
12 AM - 1 AM
23AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM - 3 AM
22AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 23), while the lowest AQI was between 2 AM to 3 AM (Avg. 22).
2025 Days Vs Air Quality
Saint Ouen, Saint Helier, Jersey
2025
91%
243
9%
25
Total number of days with different AQI categories in last 269 days in 2025 (96 days remaining)
Good
243 DaysModerate
25 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 269 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
31AQI
31AQI
2nd January 2025
27AQI
27AQI
3rd January 2025
29AQI
29AQI
4th January 2025
53AQI
53AQI
5th January 2025
33AQI
33AQI
6th January 2025
31AQI
31AQI
7th January 2025
27AQI
27AQI
8th January 2025
30AQI
30AQI
9th January 2025
30AQI
30AQI
10th January 2025
24AQI
24AQI
11th January 2025
36AQI
36AQI
12th January 2025
45AQI
45AQI
13th January 2025
47AQI
47AQI
14th January 2025
54AQI
54AQI
15th January 2025
64AQI
64AQI
16th January 2025
47AQI
47AQI
17th January 2025
47AQI
47AQI
18th January 2025
53AQI
53AQI
19th January 2025
43AQI
43AQI
20th January 2025
43AQI
43AQI
21st January 2025
43AQI
43AQI
22nd January 2025
46AQI
46AQI
23rd January 2025
36AQI
36AQI
24th January 2025
42AQI
42AQI
25th January 2025
29AQI
29AQI
26th January 2025
29AQI
29AQI
27th January 2025
31AQI
31AQI
28th January 2025
34AQI
34AQI
29th January 2025
32AQI
32AQI
30th January 2025
29AQI
29AQI
31st January 2025
31AQI
31AQI
1st February 2025
29AQI
29AQI
2nd February 2025
30AQI
30AQI
3rd February 2025
34AQI
34AQI
4th February 2025
30AQI
30AQI
5th February 2025
38AQI
38AQI
6th February 2025
43AQI
43AQI
7th February 2025
48AQI
48AQI
8th February 2025
30AQI
30AQI
9th February 2025
34AQI
34AQI
10th February 2025
30AQI
30AQI
11th February 2025
47AQI
47AQI
12th February 2025
51AQI
51AQI
13th February 2025
53AQI
53AQI
14th February 2025
55AQI
55AQI
15th February 2025
61AQI
61AQI
16th February 2025
58AQI
58AQI
17th February 2025
63AQI
63AQI
18th February 2025
65AQI
65AQI
19th February 2025
61AQI
61AQI
20th February 2025
44AQI
44AQI
21st February 2025
40AQI
40AQI
22nd February 2025
38AQI
38AQI
23rd February 2025
33AQI
33AQI
24th February 2025
35AQI
35AQI
25th February 2025
37AQI
37AQI
26th February 2025
32AQI
32AQI
27th February 2025
29AQI
29AQI
28th February 2025
31AQI
31AQI
1st March 2025
34AQI
34AQI
2nd March 2025
44AQI
44AQI
3rd March 2025
54AQI
54AQI
4th March 2025
67AQI
67AQI
5th March 2025
67AQI
67AQI
6th March 2025
52AQI
52AQI
7th March 2025
43AQI
43AQI
8th March 2025
34AQI
34AQI
9th March 2025
32AQI
32AQI
10th March 2025
32AQI
32AQI
11th March 2025
55AQI
55AQI
12th March 2025
40AQI
40AQI
13th March 2025
30AQI
30AQI
14th March 2025
28AQI
28AQI
15th March 2025
29AQI
29AQI
16th March 2025
33AQI
33AQI
17th March 2025
37AQI
37AQI
18th March 2025
37AQI
37AQI
19th March 2025
35AQI
35AQI
20th March 2025
35AQI
35AQI
21st March 2025
46AQI
46AQI
22nd March 2025
25AQI
25AQI
23rd March 2025
25AQI
25AQI
24th March 2025
40AQI
40AQI
25th March 2025
54AQI
54AQI
26th March 2025
41AQI
41AQI
27th March 2025
39AQI
39AQI
28th March 2025
33AQI
33AQI
29th March 2025
29AQI
29AQI
30th March 2025
32AQI
32AQI
31st March 2025
46AQI
46AQI
1st April 2025
42AQI
42AQI
2nd April 2025
38AQI
38AQI
3rd April 2025
36AQI
36AQI
4th April 2025
32AQI
32AQI
5th April 2025
57AQI
57AQI
6th April 2025
51AQI
51AQI
7th April 2025
38AQI
38AQI
8th April 2025
43AQI
43AQI
9th April 2025
50AQI
50AQI
10th April 2025
47AQI
47AQI
11th April 2025
50AQI
50AQI
12th April 2025
40AQI
40AQI
13th April 2025
37AQI
37AQI
14th April 2025
24AQI
24AQI
15th April 2025
20AQI
20AQI
16th April 2025
19AQI
19AQI
17th April 2025
16AQI
16AQI
18th April 2025
19AQI
19AQI
19th April 2025
18AQI
18AQI
20th April 2025
36AQI
36AQI
21st April 2025
31AQI
31AQI
22nd April 2025
25AQI
25AQI
23rd April 2025
25AQI
25AQI
24th April 2025
28AQI
28AQI
25th April 2025
40AQI
40AQI
26th April 2025
51AQI
51AQI
27th April 2025
54AQI
54AQI
28th April 2025
48AQI
48AQI
29th April 2025
41AQI
41AQI
30th April 2025
46AQI
46AQI
1st May 2025
35AQI
35AQI
2nd May 2025
27AQI
27AQI
3rd May 2025
57AQI
57AQI
4th May 2025
30AQI
30AQI
5th May 2025
18AQI
18AQI
6th May 2025
14AQI
14AQI
7th May 2025
14AQI
14AQI
8th May 2025
20AQI
20AQI
9th May 2025
26AQI
26AQI
10th May 2025
28AQI
28AQI
11th May 2025
23AQI
23AQI
12th May 2025
28AQI
28AQI
13th May 2025
24AQI
24AQI
14th May 2025
37AQI
37AQI
15th May 2025
24AQI
24AQI
16th May 2025
19AQI
19AQI
17th May 2025
31AQI
31AQI
18th May 2025
34AQI
34AQI
19th May 2025
39AQI
39AQI
20th May 2025
27AQI
27AQI
21st May 2025
28AQI
28AQI
22nd May 2025
34AQI
34AQI
23rd May 2025
34AQI
34AQI
24th May 2025
38AQI
38AQI
25th May 2025
22AQI
22AQI
26th May 2025
23AQI
23AQI
27th May 2025
25AQI
25AQI
28th May 2025
24AQI
24AQI
29th May 2025
19AQI
19AQI
30th May 2025
19AQI
19AQI
31st May 2025
24AQI
24AQI
1st June 2025
29AQI
29AQI
2nd June 2025
23AQI
23AQI
3rd June 2025
29AQI
29AQI
4th June 2025
24AQI
24AQI
5th June 2025
16AQI
16AQI
6th June 2025
14AQI
14AQI
7th June 2025
14AQI
14AQI
8th June 2025
16AQI
16AQI
9th June 2025
46AQI
46AQI
10th June 2025
31AQI
31AQI
11th June 2025
20AQI
20AQI
12th June 2025
33AQI
33AQI
13th June 2025
29AQI
29AQI
14th June 2025
31AQI
31AQI
15th June 2025
31AQI
31AQI
16th June 2025
27AQI
27AQI
17th June 2025
38AQI
38AQI
18th June 2025
37AQI
37AQI
19th June 2025
32AQI
32AQI
20th June 2025
34AQI
34AQI
21st June 2025
37AQI
37AQI
22nd June 2025
40AQI
40AQI
23rd June 2025
18AQI
18AQI
24th June 2025
14AQI
14AQI
25th June 2025
14AQI
14AQI
26th June 2025
13AQI
13AQI
27th June 2025
13AQI
13AQI
28th June 2025
12AQI
12AQI
29th June 2025
20AQI
20AQI
30th June 2025
26AQI
26AQI
1st July 2025
37AQI
37AQI
2nd July 2025
18AQI
18AQI
3rd July 2025
12AQI
12AQI
4th July 2025
15AQI
15AQI
5th July 2025
19AQI
19AQI
6th July 2025
15AQI
15AQI
7th July 2025
14AQI
14AQI
8th July 2025
17AQI
17AQI
9th July 2025
20AQI
20AQI
10th July 2025
21AQI
21AQI
11th July 2025
16AQI
16AQI
12th July 2025
16AQI
16AQI
13th July 2025
29AQI
29AQI
14th July 2025
26AQI
26AQI
15th July 2025
15AQI
15AQI
16th July 2025
38AQI
38AQI
17th July 2025
20AQI
20AQI
18th July 2025
23AQI
23AQI
19th July 2025
23AQI
23AQI
20th July 2025
14AQI
14AQI
21st July 2025
13AQI
13AQI
22nd July 2025
12AQI
12AQI
23rd July 2025
13AQI
13AQI
24th July 2025
45AQI
45AQI
25th July 2025
56AQI
56AQI
26th July 2025
30AQI
30AQI
27th July 2025
19AQI
19AQI
28th July 2025
24AQI
24AQI
29th July 2025
15AQI
15AQI
30th July 2025
18AQI
18AQI
31st July 2025
20AQI
20AQI
1st August 2025
22AQI
22AQI
2nd August 2025
25AQI
25AQI
3rd August 2025
24AQI
24AQI
4th August 2025
23AQI
23AQI
5th August 2025
22AQI
22AQI
6th August 2025
25AQI
25AQI
7th August 2025
21AQI
21AQI
8th August 2025
20AQI
20AQI
9th August 2025
14AQI
14AQI
10th August 2025
24AQI
24AQI
11th August 2025
39AQI
39AQI
12th August 2025
49AQI
49AQI
13th August 2025
52AQI
52AQI
14th August 2025
47AQI
47AQI
15th August 2025
41AQI
41AQI
16th August 2025
43AQI
43AQI
17th August 2025
43AQI
43AQI
18th August 2025
36AQI
36AQI
19th August 2025
34AQI
34AQI
20th August 2025
37AQI
37AQI
21st August 2025
40AQI
40AQI
22nd August 2025
30AQI
30AQI
23rd August 2025
27AQI
27AQI
24th August 2025
28AQI
28AQI
25th August 2025
28AQI
28AQI
26th August 2025
27AQI
27AQI
27th August 2025
31AQI
31AQI
28th August 2025
27AQI
27AQI
29th August 2025
22AQI
22AQI
30th August 2025
20AQI
20AQI
31st August 2025
20AQI
20AQI
1st September 2025
21AQI
21AQI
2nd September 2025
21AQI
21AQI
3rd September 2025
24AQI
24AQI
4th September 2025
19AQI
19AQI
5th September 2025
20AQI
20AQI
6th September 2025
20AQI
20AQI
7th September 2025
23AQI
23AQI
8th September 2025
21AQI
21AQI
9th September 2025
23AQI
23AQI
10th September 2025
20AQI
20AQI
11th September 2025
21AQI
21AQI
12th September 2025
18AQI
18AQI
13th September 2025
17AQI
17AQI
14th September 2025
17AQI
17AQI
15th September 2025
21AQI
21AQI
16th September 2025
20AQI
20AQI
17th September 2025
17AQI
17AQI
18th September 2025
13AQI
13AQI
19th September 2025
27AQI
27AQI
20th September 2025
25AQI
25AQI
21st September 2025
10AQI
10AQI
22nd September 2025
10AQI
10AQI
23rd September 2025
11AQI
11AQI
24th September 2025
12AQI
12AQI
25th September 2025
12AQI
12AQI
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
38AQI
42AQI
40AQI
37AQI
27AQI
25AQI
22AQI
30AQI
19AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202531AQI
27
4
20
8
25
6
26
4
30
1
30
30
1
30
1
25
243
25
Highest AQI recorded in
February42AQI
Lowest AQI recorded in
September19AQI
202430AQI
15
2
1
1
12
30
31
28
3
13
28
2
28
3
190
7
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
March21AQI
202312AQI
31
27
1
29
2
27
3
31
30
28
3
26
5
232
11
Highest AQI recorded in
December36AQI
Lowest AQI recorded in
July3AQI
202212AQI
2
30
26
4
58
4
Highest AQI recorded in
December21AQI
Lowest AQI recorded in
October2AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2025(Avg.)
31AQILeast Polluted Year Recorded
2023(Avg.)
12AQISaint Ouen's annual 2025 AQI (31) shows an average percentage change of 106.02% (worsened AQI) compared to previous years: 2022 (12), 2023 (12), 2024 (30).
