Hilsea, Portsmouth, United Kingdom 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
Hilsea, Portsmouth, United Kingdom
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
19th Aug 2024
98AQILowest AQI recorded on
8th Aug 2023
20AQISame Day Analysis (11th August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 40 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Hilsea, Portsmouth, United Kingdom
AQI
Day
Night
.
5 AM11th Aug 2025
8 PM
4 AM12th Aug 2025
Day time
Avg. Highest Time
11AM11th Aug
57AQI
Avg. Lowest Time
5AM11th Aug
46AQI
Night time
Avg. Highest Time
3AM12th Aug
55AQI
Avg. Lowest Time
2AM12th Aug
46AQI
In the last 24 hours,
Hilsea's AQI reached its highest point of 57 at 11 AM during the Day, while the lowest point, 46, was recorded at 2 AM during the Night between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hilsea, Portsmouth, United Kingdom
JulAug
13th - 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 - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th
Day
Night
13th Jul 2025235 AMAQI
13th Jul 2025256 AMAQI
13th Jul 2025287 AMAQI
13th Jul 2025248 AMAQI
13th Jul 2025249 AMAQI
13th Jul 20252410 AMAQI
13th Jul 20252711 AMAQI
13th Jul 20252412 PMAQI
13th Jul 2025261 PMAQI
13th Jul 2025262 PMAQI
13th Jul 2025263 PMAQI
13th Jul 2025264 PMAQI
13th Jul 2025265 PMAQI
13th Jul 2025256 PMAQI
13th Jul 2025247 PMAQI
13th Jul 2025248 PMAQI
13th Jul 2025269 PMAQI
13th Jul 20252610 PMAQI
13th Jul 20252611 PMAQI
14th Jul 20252612 AMAQI
14th Jul 2025261 AMAQI
14th Jul 2025282 AMAQI
14th Jul 2025363 AMAQI
14th Jul 2025464 AMAQI
19°C15/23°C
14th Jul 2025375 AMAQI
14th Jul 2025366 AMAQI
14th Jul 2025377 AMAQI
14th Jul 2025338 AMAQI
14th Jul 2025279 AMAQI
14th Jul 20252710 AMAQI
14th Jul 20252811 AMAQI
14th Jul 20253012 PMAQI
14th Jul 2025331 PMAQI
14th Jul 2025322 PMAQI
14th Jul 2025333 PMAQI
14th Jul 2025334 PMAQI
14th Jul 2025325 PMAQI
14th Jul 2025296 PMAQI
14th Jul 2025287 PMAQI
14th Jul 2025278 PMAQI
14th Jul 2025309 PMAQI
14th Jul 20252910 PMAQI
14th Jul 20253011 PMAQI
15th Jul 20253212 AMAQI
15th Jul 2025291 AMAQI
15th Jul 2025232 AMAQI
15th Jul 2025223 AMAQI
15th Jul 2025214 AMAQI
18°C16/21°C
15th Jul 2025255 AMAQI
15th Jul 2025246 AMAQI
15th Jul 2025247 AMAQI
15th Jul 2025268 AMAQI
15th Jul 2025269 AMAQI
15th Jul 20252610 AMAQI
15th Jul 20252411 AMAQI
15th Jul 20252612 PMAQI
15th Jul 2025241 PMAQI
15th Jul 2025262 PMAQI
15th Jul 2025253 PMAQI
15th Jul 2025244 PMAQI
15th Jul 2025345 PMAQI
15th Jul 2025306 PMAQI
15th Jul 2025317 PMAQI
15th Jul 2025308 PMAQI
15th Jul 2025279 PMAQI
15th Jul 20252710 PMAQI
15th Jul 20252711 PMAQI
16th Jul 20252712 AMAQI
16th Jul 2025271 AMAQI
16th Jul 2025292 AMAQI
16th Jul 2025283 AMAQI
16th Jul 2025284 AMAQI
18°C15/20°C
16th Jul 2025265 AMAQI
16th Jul 2025276 AMAQI
16th Jul 2025277 AMAQI
16th Jul 2025268 AMAQI
16th Jul 2025279 AMAQI
16th Jul 20252610 AMAQI
16th Jul 20252611 AMAQI
16th Jul 20252512 PMAQI
16th Jul 2025261 PMAQI
16th Jul 2025272 PMAQI
16th Jul 2025263 PMAQI
16th Jul 2025254 PMAQI
16th Jul 2025265 PMAQI
16th Jul 2025266 PMAQI
16th Jul 2025267 PMAQI
16th Jul 2025268 PMAQI
16th Jul 2025279 PMAQI
16th Jul 20252710 PMAQI
16th Jul 20252611 PMAQI
17th Jul 20252712 AMAQI
17th Jul 2025261 AMAQI
17th Jul 2025242 AMAQI
17th Jul 2025243 AMAQI
17th Jul 2025204 AMAQI
19°C14/23°C
17th Jul 2025215 AMAQI
17th Jul 2025216 AMAQI
17th Jul 2025257 AMAQI
17th Jul 2025258 AMAQI
17th Jul 2025229 AMAQI
17th Jul 20252210 AMAQI
17th Jul 20252111 AMAQI
17th Jul 20252012 PMAQI
17th Jul 2025221 PMAQI
17th Jul 2025222 PMAQI
17th Jul 2025223 PMAQI
17th Jul 2025224 PMAQI
17th Jul 2025245 PMAQI
17th Jul 2025246 PMAQI
17th Jul 2025227 PMAQI
17th Jul 2025248 PMAQI
17th Jul 2025239 PMAQI
17th Jul 20252310 PMAQI
17th Jul 20252211 PMAQI
18th Jul 20252312 AMAQI
18th Jul 2025221 AMAQI
18th Jul 2025202 AMAQI
18th Jul 2025223 AMAQI
18th Jul 2025224 AMAQI
20°C18/23°C
18th Jul 2025225 AMAQI
18th Jul 2025226 AMAQI
18th Jul 2025247 AMAQI
18th Jul 2025218 AMAQI
18th Jul 2025239 AMAQI
18th Jul 20252310 AMAQI
18th Jul 20252211 AMAQI
18th Jul 20252212 PMAQI
18th Jul 2025221 PMAQI
18th Jul 2025222 PMAQI
18th Jul 2025213 PMAQI
18th Jul 2025224 PMAQI
18th Jul 2025225 PMAQI
18th Jul 2025226 PMAQI
18th Jul 2025227 PMAQI
18th Jul 2025228 PMAQI
18th Jul 2025229 PMAQI
18th Jul 20252210 PMAQI
18th Jul 20252211 PMAQI
19th Jul 20252212 AMAQI
19th Jul 2025221 AMAQI
19th Jul 2025172 AMAQI
19th Jul 2025183 AMAQI
19th Jul 2025174 AMAQI
20°C17/23°C
19th Jul 2025205 AMAQI
19th Jul 2025206 AMAQI
19th Jul 2025227 AMAQI
19th Jul 2025218 AMAQI
19th Jul 2025209 AMAQI
19th Jul 20252010 AMAQI
19th Jul 20251911 AMAQI
19th Jul 20252012 PMAQI
19th Jul 2025211 PMAQI
19th Jul 2025202 PMAQI
19th Jul 2025193 PMAQI
19th Jul 2025204 PMAQI
19th Jul 2025205 PMAQI
19th Jul 2025216 PMAQI
19th Jul 2025227 PMAQI
19th Jul 2025208 PMAQI
19th Jul 2025219 PMAQI
19th Jul 20252010 PMAQI
19th Jul 20252011 PMAQI
20th Jul 20252012 AMAQI
20th Jul 2025201 AMAQI
20th Jul 2025192 AMAQI
20th Jul 2025203 AMAQI
20th Jul 2025194 AMAQI
18°C17/21°C
20th Jul 2025205 AMAQI
20th Jul 2025216 AMAQI
20th Jul 2025217 AMAQI
20th Jul 2025218 AMAQI
20th Jul 2025209 AMAQI
20th Jul 20252010 AMAQI
20th Jul 20252111 AMAQI
20th Jul 20252212 PMAQI
20th Jul 2025211 PMAQI
20th Jul 2025202 PMAQI
20th Jul 2025203 PMAQI
20th Jul 2025204 PMAQI
20th Jul 2025205 PMAQI
20th Jul 2025196 PMAQI
20th Jul 2025207 PMAQI
20th Jul 2025208 PMAQI
20th Jul 2025209 PMAQI
20th Jul 20251810 PMAQI
20th Jul 20251811 PMAQI
21st Jul 20251812 AMAQI
21st Jul 2025191 AMAQI
21st Jul 2025162 AMAQI
21st Jul 2025173 AMAQI
21st Jul 2025174 AMAQI
18°C16/20°C
21st Jul 2025165 AMAQI
21st Jul 2025176 AMAQI
21st Jul 2025187 AMAQI
21st Jul 2025188 AMAQI
21st Jul 2025189 AMAQI
21st Jul 20251810 AMAQI
21st Jul 20251811 AMAQI
21st Jul 20251812 PMAQI
21st Jul 2025171 PMAQI
21st Jul 2025172 PMAQI
21st Jul 2025183 PMAQI
21st Jul 2025184 PMAQI
21st Jul 2025195 PMAQI
21st Jul 2025186 PMAQI
21st Jul 2025187 PMAQI
21st Jul 2025188 PMAQI
21st Jul 2025189 PMAQI
21st Jul 20251810 PMAQI
21st Jul 20251811 PMAQI
22nd Jul 20251812 AMAQI
22nd Jul 2025181 AMAQI
22nd Jul 2025162 AMAQI
22nd Jul 2025153 AMAQI
22nd Jul 2025174 AMAQI
18°C15/22°C
22nd Jul 2025185 AMAQI
22nd Jul 2025186 AMAQI
22nd Jul 2025177 AMAQI
22nd Jul 2025188 AMAQI
22nd Jul 2025189 AMAQI
22nd Jul 20251710 AMAQI
22nd Jul 20251711 AMAQI
22nd Jul 20251612 PMAQI
22nd Jul 2025181 PMAQI
22nd Jul 2025172 PMAQI
22nd Jul 2025173 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 20251711 PMAQI
23rd Jul 20251712 AMAQI
23rd Jul 2025231 AMAQI
23rd Jul 2025142 AMAQI
23rd Jul 2025153 AMAQI
23rd Jul 2025154 AMAQI
18°C16/21°C
23rd Jul 2025165 AMAQI
23rd Jul 2025166 AMAQI
23rd Jul 2025167 AMAQI
23rd Jul 2025168 AMAQI
23rd Jul 2025189 AMAQI
23rd Jul 20251810 AMAQI
23rd Jul 20252011 AMAQI
23rd Jul 20251912 PMAQI
23rd Jul 2025181 PMAQI
23rd Jul 2025182 PMAQI
23rd Jul 2025183 PMAQI
23rd Jul 2025184 PMAQI
23rd Jul 2025195 PMAQI
23rd Jul 2025216 PMAQI
23rd Jul 2025217 PMAQI
23rd Jul 2025198 PMAQI
23rd Jul 2025189 PMAQI
23rd Jul 20251810 PMAQI
23rd Jul 20251811 PMAQI
24th Jul 20251812 AMAQI
24th Jul 2025201 AMAQI
24th Jul 2025542 AMAQI
24th Jul 2025503 AMAQI
24th Jul 2025454 AMAQI
18°C14/22°C
24th Jul 2025405 AMAQI
24th Jul 2025406 AMAQI
24th Jul 2025407 AMAQI
24th Jul 2025438 AMAQI
24th Jul 2025419 AMAQI
24th Jul 20254010 AMAQI
24th Jul 20253811 AMAQI
24th Jul 20253812 PMAQI
24th Jul 2025401 PMAQI
24th Jul 2025362 PMAQI
24th Jul 2025363 PMAQI
24th Jul 2025364 PMAQI
24th Jul 2025335 PMAQI
24th Jul 2025336 PMAQI
24th Jul 2025337 PMAQI
24th Jul 2025338 PMAQI
24th Jul 2025409 PMAQI
24th Jul 20254210 PMAQI
24th Jul 20254011 PMAQI
25th Jul 20253712 AMAQI
25th Jul 2025401 AMAQI
25th Jul 2025402 AMAQI
25th Jul 2025413 AMAQI
25th Jul 2025434 AMAQI
19°C16/23°C
25th Jul 2025425 AMAQI
25th Jul 2025406 AMAQI
25th Jul 2025407 AMAQI
25th Jul 2025378 AMAQI
25th Jul 2025409 AMAQI
25th Jul 20253810 AMAQI
25th Jul 20254011 AMAQI
25th Jul 20254412 PMAQI
25th Jul 2025431 PMAQI
25th Jul 2025442 PMAQI
25th Jul 2025443 PMAQI
25th Jul 2025454 PMAQI
25th Jul 2025445 PMAQI
25th Jul 2025456 PMAQI
25th Jul 2025457 PMAQI
25th Jul 2025448 PMAQI
25th Jul 2025449 PMAQI
25th Jul 20254410 PMAQI
25th Jul 20254311 PMAQI
26th Jul 20254312 AMAQI
26th Jul 2025451 AMAQI
26th Jul 2025522 AMAQI
26th Jul 2025553 AMAQI
26th Jul 2025544 AMAQI
19°C16/22°C
26th Jul 2025505 AMAQI
26th Jul 2025466 AMAQI
26th Jul 2025447 AMAQI
26th Jul 2025438 AMAQI
26th Jul 2025419 AMAQI
26th Jul 20253610 AMAQI
26th Jul 20253411 AMAQI
26th Jul 20253212 PMAQI
26th Jul 2025411 PMAQI
26th Jul 2025402 PMAQI
26th Jul 2025403 PMAQI
26th Jul 2025404 PMAQI
26th Jul 2025395 PMAQI
26th Jul 2025386 PMAQI
26th Jul 2025387 PMAQI
26th Jul 2025398 PMAQI
26th Jul 2025429 PMAQI
26th Jul 20254210 PMAQI
26th Jul 20254311 PMAQI
27th Jul 20254412 AMAQI
27th Jul 2025411 AMAQI
27th Jul 2025232 AMAQI
27th Jul 2025213 AMAQI
27th Jul 2025214 AMAQI
19°C15/22°C
27th Jul 2025245 AMAQI
27th Jul 2025266 AMAQI
27th Jul 2025247 AMAQI
27th Jul 2025248 AMAQI
27th Jul 2025249 AMAQI
27th Jul 20252610 AMAQI
27th Jul 20252511 AMAQI
27th Jul 20252812 PMAQI
27th Jul 2025261 PMAQI
27th Jul 2025282 PMAQI
27th Jul 2025283 PMAQI
27th Jul 2025284 PMAQI
27th Jul 2025285 PMAQI
27th Jul 2025286 PMAQI
27th Jul 2025277 PMAQI
27th Jul 2025288 PMAQI
27th Jul 2025279 PMAQI
27th Jul 20252910 PMAQI
27th Jul 20253011 PMAQI
28th Jul 20253012 AMAQI
28th Jul 2025291 AMAQI
28th Jul 2025302 AMAQI
28th Jul 2025313 AMAQI
28th Jul 2025304 AMAQI
18°C15/22°C
28th Jul 2025305 AMAQI
28th Jul 2025296 AMAQI
28th Jul 2025307 AMAQI
28th Jul 2025298 AMAQI
28th Jul 2025309 AMAQI
28th Jul 20252910 AMAQI
28th Jul 20253011 AMAQI
28th Jul 20252912 PMAQI
28th Jul 2025301 PMAQI
28th Jul 2025292 PMAQI
28th Jul 2025293 PMAQI
28th Jul 2025294 PMAQI
28th Jul 2025295 PMAQI
28th Jul 2025296 PMAQI
28th Jul 2025307 PMAQI
28th Jul 2025298 PMAQI
28th Jul 2025309 PMAQI
28th Jul 20253010 PMAQI
28th Jul 20253011 PMAQI
29th Jul 20252912 AMAQI
29th Jul 2025291 AMAQI
29th Jul 2025192 AMAQI
29th Jul 2025173 AMAQI
29th Jul 2025194 AMAQI
18°C13/21°C
29th Jul 2025225 AMAQI
29th Jul 2025226 AMAQI
29th Jul 2025227 AMAQI
29th Jul 2025228 AMAQI
29th Jul 2025229 AMAQI
29th Jul 20252310 AMAQI
29th Jul 20252211 AMAQI
29th Jul 20252212 PMAQI
29th Jul 2025231 PMAQI
29th Jul 2025222 PMAQI
29th Jul 2025233 PMAQI
29th Jul 2025224 PMAQI
29th Jul 2025235 PMAQI
29th Jul 2025236 PMAQI
29th Jul 2025227 PMAQI
29th Jul 2025238 PMAQI
29th Jul 2025239 PMAQI
29th Jul 20252410 PMAQI
29th Jul 20252311 PMAQI
30th Jul 20252312 AMAQI
30th Jul 2025231 AMAQI
30th Jul 2025172 AMAQI
30th Jul 2025183 AMAQI
30th Jul 2025184 AMAQI
16°C14/18°C
30th Jul 2025235 AMAQI
30th Jul 2025246 AMAQI
30th Jul 2025257 AMAQI
30th Jul 2025258 AMAQI
30th Jul 2025259 AMAQI
30th Jul 20252210 AMAQI
30th Jul 20252211 AMAQI
30th Jul 20252012 PMAQI
30th Jul 2025211 PMAQI
30th Jul 2025212 PMAQI
30th Jul 2025213 PMAQI
30th Jul 2025204 PMAQI
30th Jul 2025215 PMAQI
30th Jul 2025226 PMAQI
30th Jul 2025227 PMAQI
30th Jul 2025228 PMAQI
30th Jul 2025219 PMAQI
30th Jul 20252110 PMAQI
30th Jul 20252111 PMAQI
31st Jul 20252112 AMAQI
31st Jul 2025211 AMAQI
31st Jul 2025212 AMAQI
31st Jul 2025203 AMAQI
31st Jul 2025214 AMAQI
19°C15/24°C
31st Jul 2025225 AMAQI
31st Jul 2025216 AMAQI
31st Jul 2025217 AMAQI
31st Jul 2025218 AMAQI
31st Jul 2025219 AMAQI
31st Jul 20252110 AMAQI
31st Jul 20251811 AMAQI
31st Jul 20251912 PMAQI
31st Jul 2025221 PMAQI
31st Jul 2025222 PMAQI
31st Jul 2025223 PMAQI
31st Jul 2025234 PMAQI
31st Jul 2025225 PMAQI
31st Jul 2025226 PMAQI
31st Jul 2025227 PMAQI
31st Jul 2025238 PMAQI
31st Jul 2025249 PMAQI
31st Jul 20252310 PMAQI
31st Jul 20252211 PMAQI
1st Aug 20252312 AMAQI
1st Aug 2025191 AMAQI
1st Aug 2025202 AMAQI
1st Aug 2025193 AMAQI
1st Aug 2025204 AMAQI
18°C16/22°C
1st Aug 2025185 AMAQI
1st Aug 2025196 AMAQI
1st Aug 2025217 AMAQI
1st Aug 2025298 AMAQI
1st Aug 2025239 AMAQI
1st Aug 20252210 AMAQI
1st Aug 20252111 AMAQI
1st Aug 20252012 PMAQI
1st Aug 2025231 PMAQI
1st Aug 2025222 PMAQI
1st Aug 2025223 PMAQI
1st Aug 2025204 PMAQI
1st Aug 2025205 PMAQI
1st Aug 2025216 PMAQI
1st Aug 2025217 PMAQI
1st Aug 2025228 PMAQI
1st Aug 2025229 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252312 AMAQI
2nd Aug 2025191 AMAQI
2nd Aug 2025202 AMAQI
2nd Aug 2025193 AMAQI
2nd Aug 2025204 AMAQI
17°C12/21°C
2nd Aug 2025205 AMAQI
2nd Aug 2025196 AMAQI
2nd Aug 2025187 AMAQI
2nd Aug 2025208 AMAQI
2nd Aug 2025209 AMAQI
2nd Aug 20251810 AMAQI
2nd Aug 20252011 AMAQI
2nd Aug 20252212 PMAQI
2nd Aug 2025221 PMAQI
2nd Aug 2025202 PMAQI
2nd Aug 2025203 PMAQI
2nd Aug 2025214 PMAQI
2nd Aug 2025205 PMAQI
2nd Aug 2025196 PMAQI
2nd Aug 2025207 PMAQI
2nd Aug 2025218 PMAQI
2nd Aug 2025219 PMAQI
2nd Aug 20252210 PMAQI
2nd Aug 20252111 PMAQI
3rd Aug 20252112 AMAQI
3rd Aug 2025201 AMAQI
3rd Aug 2025242 AMAQI
3rd Aug 2025233 AMAQI
3rd Aug 2025244 AMAQI
17°C13/21°C
3rd Aug 2025285 AMAQI
3rd Aug 2025276 AMAQI
3rd Aug 2025257 AMAQI
3rd Aug 2025298 AMAQI
3rd Aug 2025289 AMAQI
3rd Aug 20252610 AMAQI
3rd Aug 20252611 AMAQI
3rd Aug 20252312 PMAQI
3rd Aug 2025221 PMAQI
3rd Aug 2025252 PMAQI
3rd Aug 2025223 PMAQI
3rd Aug 2025224 PMAQI
3rd Aug 2025285 PMAQI
3rd Aug 2025266 PMAQI
3rd Aug 2025257 PMAQI
3rd Aug 2025248 PMAQI
3rd Aug 2025249 PMAQI
3rd Aug 20252410 PMAQI
3rd Aug 20252411 PMAQI
4th Aug 20252412 AMAQI
4th Aug 2025221 AMAQI
4th Aug 2025192 AMAQI
4th Aug 2025233 AMAQI
4th Aug 2025254 AMAQI
18°C14/22°C
4th Aug 2025275 AMAQI
4th Aug 2025266 AMAQI
4th Aug 2025247 AMAQI
4th Aug 2025248 AMAQI
4th Aug 2025239 AMAQI
4th Aug 20252810 AMAQI
4th Aug 20252411 AMAQI
4th Aug 20252812 PMAQI
4th Aug 2025241 PMAQI
4th Aug 2025242 PMAQI
4th Aug 2025223 PMAQI
4th Aug 2025254 PMAQI
4th Aug 2025245 PMAQI
4th Aug 2025226 PMAQI
4th Aug 2025227 PMAQI
4th Aug 2025228 PMAQI
4th Aug 2025249 PMAQI
4th Aug 20252310 PMAQI
4th Aug 20252411 PMAQI
5th Aug 20252412 AMAQI
5th Aug 2025201 AMAQI
5th Aug 2025202 AMAQI
5th Aug 2025193 AMAQI
5th Aug 2025224 AMAQI
18°C14/20°C
5th Aug 2025205 AMAQI
5th Aug 2025216 AMAQI
5th Aug 2025237 AMAQI
5th Aug 2025238 AMAQI
5th Aug 2025309 AMAQI
5th Aug 20253010 AMAQI
5th Aug 20252811 AMAQI
5th Aug 20252912 PMAQI
5th Aug 2025231 PMAQI
5th Aug 2025222 PMAQI
5th Aug 2025223 PMAQI
5th Aug 2025234 PMAQI
5th Aug 2025225 PMAQI
5th Aug 2025246 PMAQI
5th Aug 2025237 PMAQI
5th Aug 2025248 PMAQI
5th Aug 2025249 PMAQI
5th Aug 20252410 PMAQI
5th Aug 20252411 PMAQI
6th Aug 20252412 AMAQI
6th Aug 2025261 AMAQI
6th Aug 2025302 AMAQI
6th Aug 2025393 AMAQI
6th Aug 2025264 AMAQI
17°C12/22°C
6th Aug 2025285 AMAQI
6th Aug 2025326 AMAQI
6th Aug 2025307 AMAQI
6th Aug 2025298 AMAQI
6th Aug 2025329 AMAQI
6th Aug 20253410 AMAQI
6th Aug 20253411 AMAQI
6th Aug 20253212 PMAQI
6th Aug 2025321 PMAQI
6th Aug 2025292 PMAQI
6th Aug 2025273 PMAQI
6th Aug 2025304 PMAQI
6th Aug 2025305 PMAQI
6th Aug 2025326 PMAQI
6th Aug 2025317 PMAQI
6th Aug 2025328 PMAQI
6th Aug 2025329 PMAQI
6th Aug 20253310 PMAQI
6th Aug 20253111 PMAQI
7th Aug 20253312 AMAQI
7th Aug 2025301 AMAQI
7th Aug 2025292 AMAQI
7th Aug 2025333 AMAQI
7th Aug 2025324 AMAQI
17°C13/19°C
7th Aug 2025355 AMAQI
7th Aug 2025306 AMAQI
7th Aug 2025287 AMAQI
7th Aug 2025318 AMAQI
7th Aug 2025329 AMAQI
7th Aug 20253310 AMAQI
7th Aug 20253111 AMAQI
7th Aug 20252912 PMAQI
7th Aug 2025301 PMAQI
7th Aug 2025292 PMAQI
7th Aug 2025313 PMAQI
7th Aug 2025304 PMAQI
7th Aug 2025305 PMAQI
7th Aug 2025316 PMAQI
7th Aug 2025307 PMAQI
7th Aug 2025308 PMAQI
7th Aug 2025299 PMAQI
7th Aug 20253010 PMAQI
7th Aug 20252911 PMAQI
8th Aug 20253012 AMAQI
8th Aug 2025301 AMAQI
8th Aug 2025252 AMAQI
8th Aug 2025363 AMAQI
8th Aug 2025404 AMAQI
18°C15/20°C
8th Aug 2025365 AMAQI
8th Aug 2025396 AMAQI
8th Aug 2025387 AMAQI
8th Aug 2025388 AMAQI
8th Aug 2025369 AMAQI
8th Aug 20253410 AMAQI
8th Aug 20253211 AMAQI
8th Aug 20253012 PMAQI
8th Aug 2025311 PMAQI
8th Aug 2025322 PMAQI
8th Aug 2025323 PMAQI
8th Aug 2025324 PMAQI
8th Aug 2025325 PMAQI
8th Aug 2025306 PMAQI
8th Aug 2025317 PMAQI
8th Aug 2025318 PMAQI
8th Aug 2025329 PMAQI
8th Aug 20253210 PMAQI
8th Aug 20253211 PMAQI
9th Aug 20253212 AMAQI
9th Aug 2025311 AMAQI
9th Aug 2025242 AMAQI
9th Aug 2025223 AMAQI
9th Aug 2025224 AMAQI
18°C15/21°C
9th Aug 2025245 AMAQI
9th Aug 2025256 AMAQI
9th Aug 2025267 AMAQI
9th Aug 2025268 AMAQI
9th Aug 2025279 AMAQI
9th Aug 20252410 AMAQI
9th Aug 20252411 AMAQI
9th Aug 20252212 PMAQI
9th Aug 2025231 PMAQI
9th Aug 2025232 PMAQI
9th Aug 2025233 PMAQI
9th Aug 2025244 PMAQI
9th Aug 2025265 PMAQI
9th Aug 2025256 PMAQI
9th Aug 2025267 PMAQI
9th Aug 2025268 PMAQI
9th Aug 2025259 PMAQI
9th Aug 20252710 PMAQI
9th Aug 20253411 PMAQI
10th Aug 20252612 AMAQI
10th Aug 2025261 AMAQI
10th Aug 2025302 AMAQI
10th Aug 2025293 AMAQI
10th Aug 2025304 AMAQI
17°C13/21°C
10th Aug 2025295 AMAQI
10th Aug 2025286 AMAQI
10th Aug 2025297 AMAQI
10th Aug 2025308 AMAQI
10th Aug 2025319 AMAQI
10th Aug 20253310 AMAQI
10th Aug 20253411 AMAQI
10th Aug 20253412 PMAQI
10th Aug 2025301 PMAQI
10th Aug 2025302 PMAQI
10th Aug 2025313 PMAQI
10th Aug 2025334 PMAQI
10th Aug 2025315 PMAQI
10th Aug 2025326 PMAQI
10th Aug 2025327 PMAQI
10th Aug 2025308 PMAQI
10th Aug 2025299 PMAQI
10th Aug 20253010 PMAQI
10th Aug 20253011 PMAQI
11th Aug 20253012 AMAQI
11th Aug 2025291 AMAQI
11th Aug 2025522 AMAQI
11th Aug 2025523 AMAQI
11th Aug 2025474 AMAQI
18°C14/21°C
11th Aug 2025465 AMAQI
11th Aug 2025476 AMAQI
11th Aug 2025527 AMAQI
11th Aug 2025508 AMAQI
11th Aug 2025539 AMAQI
11th Aug 20255310 AMAQI
11th Aug 20255711 AMAQI
11th Aug 20255212 PMAQI
11th Aug 2025501 PMAQI
11th Aug 2025482 PMAQI
11th Aug 2025483 PMAQI
11th Aug 2025504 PMAQI
11th Aug 2025495 PMAQI
11th Aug 2025486 PMAQI
11th Aug 2025527 PMAQI
11th Aug 2025528 PMAQI
11th Aug 2025509 PMAQI
11th Aug 20255210 PMAQI
11th Aug 20255211 PMAQI
12th Aug 20255012 AMAQI
12th Aug 2025481 AMAQI
12th Aug 2025462 AMAQI
12th Aug 2025553 AMAQI
12th Aug 2025524 AMAQI
21°C16/24°C
12th Aug 2025545 AMAQI
5 AM12th Aug 2025546 AMAQI
12th Aug 2025537 AMAQI
12th Aug 2025578 AMAQI
12th Aug 2025599 AMAQI
12th Aug 20255610 AMAQI
12th Aug 20255611 AMAQI
12th Aug 20255212 PMAQI
12 PM12th Aug 2025531 PMAQI
12th Aug 2025522 PMAQI
12th Aug 2025523 PMAQI
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
28AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
28AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 28), while the lowest AQI was between 5 AM to 8 PM (Avg. 28).
Night time
Avg. Highest Time
12 AM - 11 PM
27AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
27AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 27), while the lowest AQI was between 12 AM to 11 PM (Avg. 27).
2025 Days Vs Air Quality
Hilsea, Portsmouth, United Kingdom
2025
76%
170
23%
51
0.9%
2
Total number of days with different AQI categories in last 224 days in 2025 (141 days remaining)
Good
170 DaysModerate
51 DaysPoor
2 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 76%
Health Risk Level:
Low
In 2025, 76% of 224 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
Hilsea, Portsmouth, United Kingdom
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
35AQI
35AQI
2nd January 2025
30AQI
30AQI
3rd January 2025
44AQI
44AQI
4th January 2025
49AQI
49AQI
5th January 2025
25AQI
25AQI
6th January 2025
27AQI
27AQI
7th January 2025
25AQI
25AQI
8th January 2025
27AQI
27AQI
9th January 2025
42AQI
42AQI
10th January 2025
49AQI
49AQI
11th January 2025
58AQI
58AQI
12th January 2025
63AQI
63AQI
13th January 2025
45AQI
45AQI
14th January 2025
57AQI
57AQI
15th January 2025
55AQI
55AQI
16th January 2025
51AQI
51AQI
17th January 2025
55AQI
55AQI
18th January 2025
67AQI
67AQI
19th January 2025
63AQI
63AQI
20th January 2025
59AQI
59AQI
21st January 2025
67AQI
67AQI
22nd January 2025
68AQI
68AQI
23rd January 2025
47AQI
47AQI
24th January 2025
49AQI
49AQI
25th January 2025
35AQI
35AQI
26th January 2025
41AQI
41AQI
27th January 2025
33AQI
33AQI
28th January 2025
33AQI
33AQI
29th January 2025
29AQI
29AQI
30th January 2025
29AQI
29AQI
31st January 2025
30AQI
30AQI
1st February 2025
27AQI
27AQI
2nd February 2025
45AQI
45AQI
3rd February 2025
52AQI
52AQI
4th February 2025
32AQI
32AQI
5th February 2025
41AQI
41AQI
6th February 2025
40AQI
40AQI
7th February 2025
41AQI
41AQI
8th February 2025
61AQI
61AQI
9th February 2025
41AQI
41AQI
10th February 2025
96AQI
96AQI
11th February 2025
74AQI
74AQI
12th February 2025
72AQI
72AQI
13th February 2025
74AQI
74AQI
14th February 2025
69AQI
69AQI
15th February 2025
82AQI
82AQI
16th February 2025
68AQI
68AQI
17th February 2025
67AQI
67AQI
18th February 2025
74AQI
74AQI
19th February 2025
79AQI
79AQI
20th February 2025
38AQI
38AQI
21st February 2025
39AQI
39AQI
22nd February 2025
43AQI
43AQI
23rd February 2025
36AQI
36AQI
24th February 2025
37AQI
37AQI
25th February 2025
31AQI
31AQI
26th February 2025
29AQI
29AQI
27th February 2025
27AQI
27AQI
28th February 2025
38AQI
38AQI
1st March 2025
44AQI
44AQI
2nd March 2025
59AQI
59AQI
3rd March 2025
79AQI
79AQI
4th March 2025
88AQI
88AQI
5th March 2025
106AQI
106AQI
6th March 2025
74AQI
74AQI
7th March 2025
53AQI
53AQI
8th March 2025
57AQI
57AQI
9th March 2025
64AQI
64AQI
10th March 2025
118AQI
118AQI
11th March 2025
68AQI
68AQI
12th March 2025
32AQI
32AQI
13th March 2025
26AQI
26AQI
14th March 2025
38AQI
38AQI
15th March 2025
26AQI
26AQI
16th March 2025
26AQI
26AQI
17th March 2025
30AQI
30AQI
18th March 2025
50AQI
50AQI
19th March 2025
65AQI
65AQI
20th March 2025
56AQI
56AQI
21st March 2025
56AQI
56AQI
22nd March 2025
41AQI
41AQI
23rd March 2025
60AQI
60AQI
24th March 2025
90AQI
90AQI
25th March 2025
72AQI
72AQI
26th March 2025
43AQI
43AQI
27th March 2025
49AQI
49AQI
28th March 2025
25AQI
25AQI
29th March 2025
25AQI
25AQI
30th March 2025
30AQI
30AQI
31st March 2025
32AQI
32AQI
1st April 2025
36AQI
36AQI
2nd April 2025
42AQI
42AQI
3rd April 2025
56AQI
56AQI
4th April 2025
61AQI
61AQI
5th April 2025
42AQI
42AQI
6th April 2025
30AQI
30AQI
7th April 2025
34AQI
34AQI
8th April 2025
54AQI
54AQI
9th April 2025
37AQI
37AQI
10th April 2025
46AQI
46AQI
11th April 2025
68AQI
68AQI
12th April 2025
59AQI
59AQI
13th April 2025
42AQI
42AQI
14th April 2025
25AQI
25AQI
15th April 2025
36AQI
36AQI
16th April 2025
19AQI
19AQI
17th April 2025
26AQI
26AQI
18th April 2025
32AQI
32AQI
19th April 2025
30AQI
30AQI
20th April 2025
34AQI
34AQI
21st April 2025
48AQI
48AQI
22nd April 2025
23AQI
23AQI
23rd April 2025
22AQI
22AQI
24th April 2025
51AQI
51AQI
25th April 2025
52AQI
52AQI
26th April 2025
57AQI
57AQI
27th April 2025
61AQI
61AQI
28th April 2025
50AQI
50AQI
29th April 2025
52AQI
52AQI
30th April 2025
58AQI
58AQI
1st May 2025
59AQI
59AQI
2nd May 2025
62AQI
62AQI
3rd May 2025
43AQI
43AQI
4th May 2025
18AQI
18AQI
5th May 2025
19AQI
19AQI
6th May 2025
21AQI
21AQI
7th May 2025
21AQI
21AQI
8th May 2025
22AQI
22AQI
9th May 2025
28AQI
28AQI
10th May 2025
25AQI
25AQI
11th May 2025
30AQI
30AQI
12th May 2025
27AQI
27AQI
13th May 2025
29AQI
29AQI
14th May 2025
35AQI
35AQI
15th May 2025
37AQI
37AQI
16th May 2025
33AQI
33AQI
17th May 2025
36AQI
36AQI
18th May 2025
45AQI
45AQI
19th May 2025
39AQI
39AQI
20th May 2025
25AQI
25AQI
21st May 2025
34AQI
34AQI
22nd May 2025
38AQI
38AQI
23rd May 2025
28AQI
28AQI
24th May 2025
26AQI
26AQI
25th May 2025
22AQI
22AQI
26th May 2025
24AQI
24AQI
27th May 2025
24AQI
24AQI
28th May 2025
22AQI
22AQI
29th May 2025
23AQI
23AQI
30th May 2025
18AQI
18AQI
31st May 2025
25AQI
25AQI
1st June 2025
25AQI
25AQI
2nd June 2025
22AQI
22AQI
3rd June 2025
26AQI
26AQI
4th June 2025
20AQI
20AQI
5th June 2025
20AQI
20AQI
6th June 2025
18AQI
18AQI
7th June 2025
16AQI
16AQI
8th June 2025
19AQI
19AQI
9th June 2025
51AQI
51AQI
10th June 2025
42AQI
42AQI
11th June 2025
31AQI
31AQI
12th June 2025
39AQI
39AQI
13th June 2025
39AQI
39AQI
14th June 2025
37AQI
37AQI
15th June 2025
29AQI
29AQI
16th June 2025
25AQI
25AQI
17th June 2025
27AQI
27AQI
18th June 2025
26AQI
26AQI
19th June 2025
31AQI
31AQI
20th June 2025
36AQI
36AQI
21st June 2025
35AQI
35AQI
22nd June 2025
34AQI
34AQI
23rd June 2025
27AQI
27AQI
24th June 2025
25AQI
25AQI
25th June 2025
21AQI
21AQI
26th June 2025
19AQI
19AQI
27th June 2025
20AQI
20AQI
28th June 2025
18AQI
18AQI
29th June 2025
18AQI
18AQI
30th June 2025
23AQI
23AQI
1st July 2025
33AQI
33AQI
2nd July 2025
31AQI
31AQI
3rd July 2025
20AQI
20AQI
4th July 2025
19AQI
19AQI
5th July 2025
20AQI
20AQI
6th July 2025
20AQI
20AQI
7th July 2025
19AQI
19AQI
8th July 2025
19AQI
19AQI
9th July 2025
19AQI
19AQI
10th July 2025
20AQI
20AQI
11th July 2025
23AQI
23AQI
12th July 2025
23AQI
23AQI
13th July 2025
25AQI
25AQI
14th July 2025
31AQI
31AQI
15th July 2025
28AQI
28AQI
16th July 2025
27AQI
27AQI
17th July 2025
24AQI
24AQI
18th July 2025
22AQI
22AQI
19th July 2025
20AQI
20AQI
20th July 2025
20AQI
20AQI
21st July 2025
18AQI
18AQI
22nd July 2025
17AQI
17AQI
23rd July 2025
18AQI
18AQI
24th July 2025
35AQI
35AQI
25th July 2025
41AQI
41AQI
26th July 2025
42AQI
42AQI
27th July 2025
30AQI
30AQI
28th July 2025
30AQI
30AQI
29th July 2025
24AQI
24AQI
30th July 2025
22AQI
22AQI
31st July 2025
21AQI
21AQI
1st August 2025
22AQI
22AQI
2nd August 2025
21AQI
21AQI
3rd August 2025
24AQI
24AQI
4th August 2025
24AQI
24AQI
5th August 2025
23AQI
23AQI
6th August 2025
30AQI
30AQI
7th August 2025
31AQI
31AQI
8th August 2025
33AQI
33AQI
9th August 2025
26AQI
26AQI
10th August 2025
29AQI
29AQI
11th August 2025
40AQI
40AQI
45AQI
52AQI
54AQI
43AQI
30AQI
27AQI
25AQI
28AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202539AQI
20
11
16
12
15
14
2
19
11
29
2
29
1
31
11
170
51
2
Highest AQI recorded in
March54AQI
Lowest AQI recorded in
July25AQI
202436AQI
25
6
28
1
28
3
30
24
7
29
1
28
2
1
23
8
25
5
30
1
17
13
29
2
316
49
1
Highest AQI recorded in
November46AQI
Lowest AQI recorded in
October29AQI
202337AQI
25
6
19
7
2
26
5
21
9
29
2
21
9
31
30
1
24
5
28
3
29
29
2
312
49
2
Highest AQI recorded in
February46AQI
Lowest AQI recorded in
August26AQI
202239AQI
15
6
14
17
25
5
29
2
29
1
23
2
3
27
1
31
25
5
18
13
239
52
Highest AQI recorded in
March61AQI
Lowest AQI recorded in
September28AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2022(Avg.)
39AQILeast Polluted Year Recorded
2024(Avg.)
36AQIHilsea's annual 2025 AQI (39) shows an average percentage change of 4.007% (worsened AQI) compared to previous years: 2022 (39), 2023 (37), 2024 (36).
