Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Thornton Heath, Croydon, 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

Thornton Heath, Croydon, United Kingdom

2021
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
18th Aug 2023
71AQI
Lowest AQI recorded on
20th Aug 2021
9AQI

Same Day Analysis (18th August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 2nd highest AQI at 29 of Good air quality, showing improvement over 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 18th Aug - 19th Aug 2025

Thornton Heath, Croydon, United Kingdom

AQI
Day
Night
.

5 AM18th Aug 2025

8 PM

4 AM19th Aug 2025

Day time
Avg. Highest Time
10AM18th Aug

35AQI

Avg. Lowest Time
3PM18th Aug

26AQI

Night time
Avg. Highest Time
10PM18th Aug

30AQI

Avg. Lowest Time
3AM19th Aug

20AQI

In the last 24 hours,

Thornton Heath's AQI reached its highest point of 35 at 10 AM during the Day, while the lowest point, 20, was recorded at 3 AM during the Night between 18th Aug and 19th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Thornton Heath, Croydon, United Kingdom

JulAug
20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th
Day
Night
20th Jul 2025295 AMAQI
20th Jul 2025246 AMAQI
20th Jul 2025237 AMAQI
20th Jul 2025218 AMAQI
20th Jul 2025209 AMAQI
20th Jul 20251910 AMAQI
20th Jul 20251811 AMAQI
20th Jul 20252012 PMAQI
20th Jul 2025211 PMAQI
20th Jul 2025242 PMAQI
20th Jul 2025233 PMAQI
20th Jul 2025224 PMAQI
20th Jul 2025265 PMAQI
20th Jul 2025266 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025198 PMAQI
20th Jul 2025209 PMAQI
20th Jul 20252010 PMAQI
20th Jul 20252211 PMAQI
21st Jul 20252812 AMAQI
21st Jul 2025221 AMAQI
21st Jul 2025172 AMAQI
21st Jul 2025213 AMAQI
21st Jul 2025184 AMAQI

18°C15/22°C

21st Jul 2025175 AMAQI
21st Jul 2025206 AMAQI
21st Jul 2025197 AMAQI
21st Jul 2025218 AMAQI
21st Jul 2025209 AMAQI
21st Jul 20251810 AMAQI
21st Jul 20251611 AMAQI
21st Jul 20251412 PMAQI
21st Jul 2025171 PMAQI
21st Jul 2025182 PMAQI
21st Jul 2025183 PMAQI
21st Jul 2025164 PMAQI
21st Jul 2025165 PMAQI
21st Jul 2025176 PMAQI
21st Jul 2025157 PMAQI
21st Jul 2025178 PMAQI
21st Jul 2025199 PMAQI
21st Jul 20252010 PMAQI
21st Jul 20251911 PMAQI
22nd Jul 20252012 AMAQI
22nd Jul 2025181 AMAQI
22nd Jul 2025172 AMAQI
22nd Jul 2025173 AMAQI
22nd Jul 2025154 AMAQI

18°C14/22°C

22nd Jul 2025185 AMAQI
22nd Jul 2025186 AMAQI
22nd Jul 2025207 AMAQI
22nd Jul 2025208 AMAQI
22nd Jul 2025189 AMAQI
22nd Jul 20251610 AMAQI
22nd Jul 20251711 AMAQI
22nd Jul 20251412 PMAQI
22nd Jul 2025141 PMAQI
22nd Jul 2025142 PMAQI
22nd Jul 2025163 PMAQI
22nd Jul 2025164 PMAQI
22nd Jul 2025165 PMAQI
22nd Jul 2025166 PMAQI
22nd Jul 2025197 PMAQI
22nd Jul 2025198 PMAQI
22nd Jul 2025229 PMAQI
22nd Jul 20251810 PMAQI
22nd Jul 20252311 PMAQI
23rd Jul 20252412 AMAQI
23rd Jul 2025211 AMAQI
23rd Jul 2025202 AMAQI
23rd Jul 2025193 AMAQI
23rd Jul 2025184 AMAQI

19°C14/24°C

23rd Jul 2025205 AMAQI
23rd Jul 2025226 AMAQI
23rd Jul 2025217 AMAQI
23rd Jul 2025228 AMAQI
23rd Jul 2025239 AMAQI
23rd Jul 20252610 AMAQI
23rd Jul 20253011 AMAQI
23rd Jul 20253012 PMAQI
23rd Jul 2025361 PMAQI
23rd Jul 2025382 PMAQI
23rd Jul 2025433 PMAQI
23rd Jul 2025514 PMAQI
23rd Jul 2025525 PMAQI
23rd Jul 2025576 PMAQI
23rd Jul 2025587 PMAQI
23rd Jul 2025588 PMAQI
23rd Jul 2025569 PMAQI
23rd Jul 20255910 PMAQI
23rd Jul 20256011 PMAQI
24th Jul 20255612 AMAQI
24th Jul 2025581 AMAQI
24th Jul 2025582 AMAQI
24th Jul 2025603 AMAQI
24th Jul 2025594 AMAQI

18°C14/23°C

24th Jul 2025565 AMAQI
24th Jul 2025546 AMAQI
24th Jul 2025517 AMAQI
24th Jul 2025488 AMAQI
24th Jul 2025509 AMAQI
24th Jul 20255210 AMAQI
24th Jul 20255211 AMAQI
24th Jul 20255012 PMAQI
24th Jul 2025501 PMAQI
24th Jul 2025432 PMAQI
24th Jul 2025373 PMAQI
24th Jul 2025314 PMAQI
24th Jul 2025305 PMAQI
24th Jul 2025296 PMAQI
24th Jul 2025347 PMAQI
24th Jul 2025398 PMAQI
24th Jul 2025429 PMAQI
24th Jul 20254010 PMAQI
24th Jul 20254211 PMAQI
25th Jul 20253812 AMAQI
25th Jul 2025341 AMAQI
25th Jul 2025332 AMAQI
25th Jul 2025303 AMAQI
25th Jul 2025284 AMAQI

17°C15/21°C

25th Jul 2025265 AMAQI
25th Jul 2025286 AMAQI
25th Jul 2025327 AMAQI
25th Jul 2025348 AMAQI
25th Jul 2025309 AMAQI
25th Jul 20252710 AMAQI
25th Jul 20253211 AMAQI
25th Jul 20253712 PMAQI
25th Jul 2025391 PMAQI
25th Jul 2025422 PMAQI
25th Jul 2025443 PMAQI
25th Jul 2025484 PMAQI
25th Jul 2025485 PMAQI
25th Jul 2025506 PMAQI
25th Jul 2025527 PMAQI
25th Jul 2025548 PMAQI
25th Jul 2025529 PMAQI
25th Jul 20255010 PMAQI
25th Jul 20255011 PMAQI
26th Jul 20255212 AMAQI
26th Jul 2025421 AMAQI
26th Jul 2025492 AMAQI
26th Jul 2025523 AMAQI
26th Jul 2025494 AMAQI

20°C16/25°C

26th Jul 2025525 AMAQI
26th Jul 2025526 AMAQI
26th Jul 2025517 AMAQI
26th Jul 2025508 AMAQI
26th Jul 2025449 AMAQI
26th Jul 20253710 AMAQI
26th Jul 20252611 AMAQI
26th Jul 20252612 PMAQI
26th Jul 2025281 PMAQI
26th Jul 2025232 PMAQI
26th Jul 2025233 PMAQI
26th Jul 2025234 PMAQI
26th Jul 2025215 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025227 PMAQI
26th Jul 2025238 PMAQI
26th Jul 2025289 PMAQI
26th Jul 20252810 PMAQI
26th Jul 20253211 PMAQI
27th Jul 20253012 AMAQI
27th Jul 2025301 AMAQI
27th Jul 2025302 AMAQI
27th Jul 2025263 AMAQI
27th Jul 2025224 AMAQI

19°C15/23°C

27th Jul 2025205 AMAQI
27th Jul 2025246 AMAQI
27th Jul 2025247 AMAQI
27th Jul 2025208 AMAQI
27th Jul 2025219 AMAQI
27th Jul 20252010 AMAQI
27th Jul 20252311 AMAQI
27th Jul 20252412 PMAQI
27th Jul 2025271 PMAQI
27th Jul 2025282 PMAQI
27th Jul 2025333 PMAQI
27th Jul 2025314 PMAQI
27th Jul 2025295 PMAQI
27th Jul 2025286 PMAQI
27th Jul 2025287 PMAQI
27th Jul 2025288 PMAQI
27th Jul 2025289 PMAQI
27th Jul 20253010 PMAQI
27th Jul 20253211 PMAQI
28th Jul 20253312 AMAQI
28th Jul 2025321 AMAQI
28th Jul 2025312 AMAQI
28th Jul 2025333 AMAQI
28th Jul 2025324 AMAQI

18°C15/22°C

28th Jul 2025315 AMAQI
28th Jul 2025316 AMAQI
28th Jul 2025327 AMAQI
28th Jul 2025358 AMAQI
28th Jul 2025349 AMAQI
28th Jul 20252810 AMAQI
28th Jul 20252911 AMAQI
28th Jul 20252712 PMAQI
28th Jul 2025271 PMAQI
28th Jul 2025242 PMAQI
28th Jul 2025263 PMAQI
28th Jul 2025284 PMAQI
28th Jul 2025275 PMAQI
28th Jul 2025296 PMAQI
28th Jul 2025287 PMAQI
28th Jul 2025308 PMAQI
28th Jul 2025289 PMAQI
28th Jul 20252910 PMAQI
28th Jul 20253111 PMAQI
29th Jul 20253512 AMAQI
29th Jul 2025411 AMAQI
29th Jul 2025412 AMAQI
29th Jul 2025363 AMAQI
29th Jul 2025274 AMAQI

19°C14/23°C

29th Jul 2025245 AMAQI
29th Jul 2025256 AMAQI
29th Jul 2025307 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025319 AMAQI
29th Jul 20253210 AMAQI
29th Jul 20252611 AMAQI
29th Jul 20252912 PMAQI
29th Jul 2025271 PMAQI
29th Jul 2025272 PMAQI
29th Jul 2025243 PMAQI
29th Jul 2025284 PMAQI
29th Jul 2025295 PMAQI
29th Jul 2025306 PMAQI
29th Jul 2025267 PMAQI
29th Jul 2025328 PMAQI
29th Jul 2025349 PMAQI
29th Jul 20253510 PMAQI
29th Jul 20253611 PMAQI
30th Jul 20253912 AMAQI
30th Jul 2025371 AMAQI
30th Jul 2025342 AMAQI
30th Jul 2025363 AMAQI
30th Jul 2025374 AMAQI

17°C14/21°C

30th Jul 2025365 AMAQI
30th Jul 2025386 AMAQI
30th Jul 2025387 AMAQI
30th Jul 2025378 AMAQI
30th Jul 2025389 AMAQI
30th Jul 20254010 AMAQI
30th Jul 20253411 AMAQI
30th Jul 20252912 PMAQI
30th Jul 2025281 PMAQI
30th Jul 2025282 PMAQI
30th Jul 2025263 PMAQI
30th Jul 2025274 PMAQI
30th Jul 2025275 PMAQI
30th Jul 2025286 PMAQI
30th Jul 2025347 PMAQI
30th Jul 2025328 PMAQI
30th Jul 2025329 PMAQI
30th Jul 20253210 PMAQI
30th Jul 20253211 PMAQI
31st Jul 20253212 AMAQI
31st Jul 2025321 AMAQI
31st Jul 2025322 AMAQI
31st Jul 2025313 AMAQI
31st Jul 2025294 AMAQI

19°C15/24°C

31st Jul 2025275 AMAQI
31st Jul 2025266 AMAQI
31st Jul 2025287 AMAQI
31st Jul 2025268 AMAQI
31st Jul 2025319 AMAQI
31st Jul 20252710 AMAQI
31st Jul 20252711 AMAQI
31st Jul 20252812 PMAQI
31st Jul 2025221 PMAQI
31st Jul 2025212 PMAQI
31st Jul 2025233 PMAQI
31st Jul 2025244 PMAQI
31st Jul 2025245 PMAQI
31st Jul 2025266 PMAQI
31st Jul 2025277 PMAQI
31st Jul 2025258 PMAQI
31st Jul 2025259 PMAQI
31st Jul 20252510 PMAQI
31st Jul 20252511 PMAQI
1st Aug 20252312 AMAQI
1st Aug 2025241 AMAQI
1st Aug 2025232 AMAQI
1st Aug 2025243 AMAQI
1st Aug 2025214 AMAQI

19°C15/24°C

1st Aug 2025195 AMAQI
1st Aug 2025226 AMAQI
1st Aug 2025227 AMAQI
1st Aug 2025208 AMAQI
1st Aug 2025229 AMAQI
1st Aug 20252310 AMAQI
1st Aug 20252111 AMAQI
1st Aug 20252312 PMAQI
1st Aug 2025241 PMAQI
1st Aug 2025242 PMAQI
1st Aug 2025263 PMAQI
1st Aug 2025204 PMAQI
1st Aug 2025195 PMAQI
1st Aug 2025216 PMAQI
1st Aug 2025237 PMAQI
1st Aug 2025238 PMAQI
1st Aug 2025229 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252212 AMAQI
2nd Aug 2025211 AMAQI
2nd Aug 2025212 AMAQI
2nd Aug 2025223 AMAQI
2nd Aug 2025214 AMAQI

17°C13/22°C

2nd Aug 2025195 AMAQI
2nd Aug 2025206 AMAQI
2nd Aug 2025187 AMAQI
2nd Aug 2025188 AMAQI
2nd Aug 2025209 AMAQI
2nd Aug 20251810 AMAQI
2nd Aug 20251811 AMAQI
2nd Aug 20252012 PMAQI
2nd Aug 2025221 PMAQI
2nd Aug 2025222 PMAQI
2nd Aug 2025233 PMAQI
2nd Aug 2025214 PMAQI
2nd Aug 2025225 PMAQI
2nd Aug 2025226 PMAQI
2nd Aug 2025207 PMAQI
2nd Aug 2025208 PMAQI
2nd Aug 2025229 PMAQI
2nd Aug 20252210 PMAQI
2nd Aug 20252211 PMAQI
3rd Aug 20252112 AMAQI
3rd Aug 2025221 AMAQI
3rd Aug 2025262 AMAQI
3rd Aug 2025273 AMAQI
3rd Aug 2025304 AMAQI

17°C13/21°C

3rd Aug 2025275 AMAQI
3rd Aug 2025336 AMAQI
3rd Aug 2025297 AMAQI
3rd Aug 2025348 AMAQI
3rd Aug 2025289 AMAQI
3rd Aug 20253510 AMAQI
3rd Aug 20252911 AMAQI
3rd Aug 20252412 PMAQI
3rd Aug 2025241 PMAQI
3rd Aug 2025242 PMAQI
3rd Aug 2025233 PMAQI
3rd Aug 2025224 PMAQI
3rd Aug 2025285 PMAQI
3rd Aug 2025236 PMAQI
3rd Aug 2025237 PMAQI
3rd Aug 2025268 PMAQI
3rd Aug 2025279 PMAQI
3rd Aug 20252710 PMAQI
3rd Aug 20252711 PMAQI
4th Aug 20252612 AMAQI
4th Aug 2025261 AMAQI
4th Aug 2025242 AMAQI
4th Aug 2025253 AMAQI
4th Aug 2025264 AMAQI

18°C13/24°C

4th Aug 2025225 AMAQI
4th Aug 2025246 AMAQI
4th Aug 2025257 AMAQI
4th Aug 2025278 AMAQI
4th Aug 2025259 AMAQI
4th Aug 20252610 AMAQI
4th Aug 20252411 AMAQI
4th Aug 20252812 PMAQI
4th Aug 2025231 PMAQI
4th Aug 2025232 PMAQI
4th Aug 2025223 PMAQI
4th Aug 2025244 PMAQI
4th Aug 2025245 PMAQI
4th Aug 2025226 PMAQI
4th Aug 2025257 PMAQI
4th Aug 2025248 PMAQI
4th Aug 2025249 PMAQI
4th Aug 20252410 PMAQI
4th Aug 20252511 PMAQI
5th Aug 20252412 AMAQI
5th Aug 2025251 AMAQI
5th Aug 2025262 AMAQI
5th Aug 2025233 AMAQI
5th Aug 2025234 AMAQI

19°C15/23°C

5th Aug 2025265 AMAQI
5th Aug 2025236 AMAQI
5th Aug 2025277 AMAQI
5th Aug 2025258 AMAQI
5th Aug 2025279 AMAQI
5th Aug 20252810 AMAQI
5th Aug 20252411 AMAQI
5th Aug 20252412 PMAQI
5th Aug 2025241 PMAQI
5th Aug 2025242 PMAQI
5th Aug 2025253 PMAQI
5th Aug 2025224 PMAQI
5th Aug 2025235 PMAQI
5th Aug 2025256 PMAQI
5th Aug 2025247 PMAQI
5th Aug 2025248 PMAQI
5th Aug 2025249 PMAQI
5th Aug 20252510 PMAQI
5th Aug 20252411 PMAQI
6th Aug 20252612 AMAQI
6th Aug 2025241 AMAQI
6th Aug 2025262 AMAQI
6th Aug 2025303 AMAQI
6th Aug 2025284 AMAQI

17°C12/23°C

6th Aug 2025265 AMAQI
6th Aug 2025306 AMAQI
6th Aug 2025327 AMAQI
6th Aug 2025318 AMAQI
6th Aug 2025339 AMAQI
6th Aug 20253410 AMAQI
6th Aug 20253211 AMAQI
6th Aug 20253212 PMAQI
6th Aug 2025291 PMAQI
6th Aug 2025272 PMAQI
6th Aug 2025283 PMAQI
6th Aug 2025284 PMAQI
6th Aug 2025325 PMAQI
6th Aug 2025316 PMAQI
6th Aug 2025327 PMAQI
6th Aug 2025288 PMAQI
6th Aug 2025289 PMAQI
6th Aug 20252810 PMAQI
6th Aug 20253011 PMAQI
7th Aug 20252812 AMAQI
7th Aug 2025281 AMAQI
7th Aug 2025342 AMAQI
7th Aug 2025353 AMAQI
7th Aug 2025284 AMAQI

18°C13/23°C

7th Aug 2025315 AMAQI
7th Aug 2025306 AMAQI
7th Aug 2025287 AMAQI
7th Aug 2025348 AMAQI
7th Aug 2025349 AMAQI
7th Aug 20253410 AMAQI
7th Aug 20253311 AMAQI
7th Aug 20253212 PMAQI
7th Aug 2025301 PMAQI
7th Aug 2025282 PMAQI
7th Aug 2025293 PMAQI
7th Aug 2025264 PMAQI
7th Aug 2025285 PMAQI
7th Aug 2025316 PMAQI
7th Aug 2025297 PMAQI
7th Aug 2025268 PMAQI
7th Aug 2025279 PMAQI
7th Aug 20253010 PMAQI
7th Aug 20252911 PMAQI
8th Aug 20252812 AMAQI
8th Aug 2025271 AMAQI
8th Aug 2025272 AMAQI
8th Aug 2025353 AMAQI
8th Aug 2025424 AMAQI

18°C13/23°C

8th Aug 2025435 AMAQI
8th Aug 2025466 AMAQI
8th Aug 2025487 AMAQI
8th Aug 2025508 AMAQI
8th Aug 2025499 AMAQI
8th Aug 20254710 AMAQI
8th Aug 20253811 AMAQI
8th Aug 20253512 PMAQI
8th Aug 2025341 PMAQI
8th Aug 2025342 PMAQI
8th Aug 2025353 PMAQI
8th Aug 2025334 PMAQI
8th Aug 2025305 PMAQI
8th Aug 2025336 PMAQI
8th Aug 2025317 PMAQI
8th Aug 2025338 PMAQI
8th Aug 2025319 PMAQI
8th Aug 20253410 PMAQI
8th Aug 20253811 PMAQI
9th Aug 20253012 AMAQI
9th Aug 2025351 AMAQI
9th Aug 2025272 AMAQI
9th Aug 2025243 AMAQI
9th Aug 2025284 AMAQI

19°C14/25°C

9th Aug 2025245 AMAQI
9th Aug 2025286 AMAQI
9th Aug 2025457 AMAQI
9th Aug 2025598 AMAQI
9th Aug 2025579 AMAQI
9th Aug 20256110 AMAQI
9th Aug 20252811 AMAQI
9th Aug 20252012 PMAQI
9th Aug 2025181 PMAQI
9th Aug 2025152 PMAQI
9th Aug 2025173 PMAQI
9th Aug 2025184 PMAQI
9th Aug 2025175 PMAQI
9th Aug 2025216 PMAQI
9th Aug 2025267 PMAQI
9th Aug 2025248 PMAQI
9th Aug 2025279 PMAQI
9th Aug 20253610 PMAQI
9th Aug 20253311 PMAQI
10th Aug 20253612 AMAQI
10th Aug 2025331 AMAQI
10th Aug 2025362 AMAQI
10th Aug 2025393 AMAQI
10th Aug 2025404 AMAQI

19°C13/26°C

10th Aug 2025395 AMAQI
10th Aug 2025366 AMAQI
10th Aug 2025437 AMAQI
10th Aug 2025428 AMAQI
10th Aug 2025429 AMAQI
10th Aug 20254310 AMAQI
10th Aug 20254611 AMAQI
10th Aug 20254212 PMAQI
10th Aug 2025401 PMAQI
10th Aug 2025512 PMAQI
10th Aug 2025573 PMAQI
10th Aug 2025584 PMAQI
10th Aug 2025585 PMAQI
10th Aug 2025606 PMAQI
10th Aug 2025587 PMAQI
10th Aug 2025578 PMAQI
10th Aug 2025579 PMAQI
10th Aug 20255610 PMAQI
10th Aug 20255611 PMAQI
11th Aug 20255712 AMAQI
11th Aug 2025551 AMAQI
11th Aug 2025562 AMAQI
11th Aug 2025573 AMAQI
11th Aug 2025584 AMAQI

21°C14/27°C

11th Aug 2025575 AMAQI
11th Aug 2025606 AMAQI
11th Aug 2025567 AMAQI
11th Aug 2025578 AMAQI
11th Aug 2025589 AMAQI
11th Aug 20255510 AMAQI
11th Aug 20255611 AMAQI
11th Aug 20255312 PMAQI
11th Aug 2025551 PMAQI
11th Aug 2025542 PMAQI
11th Aug 2025543 PMAQI
11th Aug 2025534 PMAQI
11th Aug 2025545 PMAQI
11th Aug 2025526 PMAQI
11th Aug 2025547 PMAQI
11th Aug 2025538 PMAQI
11th Aug 2025539 PMAQI
11th Aug 20255310 PMAQI
11th Aug 20255211 PMAQI
12th Aug 20255212 AMAQI
12th Aug 2025511 AMAQI
12th Aug 2025532 AMAQI
12th Aug 2025533 AMAQI
12th Aug 2025514 AMAQI

23°C16/30°C

12th Aug 2025515 AMAQI
12th Aug 2025536 AMAQI
12th Aug 2025457 AMAQI
12th Aug 2025528 AMAQI
12th Aug 2025549 AMAQI
12th Aug 20255410 AMAQI
12th Aug 20255911 AMAQI
12th Aug 20255712 PMAQI
12th Aug 2025571 PMAQI
12th Aug 2025542 PMAQI
12th Aug 2025523 PMAQI
12th Aug 2025514 PMAQI
12th Aug 2025535 PMAQI
12th Aug 2025536 PMAQI
12th Aug 2025517 PMAQI
12th Aug 2025528 PMAQI
12th Aug 2025529 PMAQI
12th Aug 20255210 PMAQI
12th Aug 20255611 PMAQI
13th Aug 20255212 AMAQI
13th Aug 2025581 AMAQI
13th Aug 2025592 AMAQI
13th Aug 2025623 AMAQI
13th Aug 2025654 AMAQI

24°C18/31°C

13th Aug 2025675 AMAQI
13th Aug 2025656 AMAQI
13th Aug 2025637 AMAQI
13th Aug 2025638 AMAQI
13th Aug 2025629 AMAQI
13th Aug 20256010 AMAQI
13th Aug 20255711 AMAQI
13th Aug 20255812 PMAQI
13th Aug 2025561 PMAQI
13th Aug 2025562 PMAQI
13th Aug 2025583 PMAQI
13th Aug 2025574 PMAQI
13th Aug 2025585 PMAQI
13th Aug 2025586 PMAQI
13th Aug 2025577 PMAQI
13th Aug 2025578 PMAQI
13th Aug 2025589 PMAQI
13th Aug 20255810 PMAQI
13th Aug 20255711 PMAQI
14th Aug 20255812 AMAQI
14th Aug 2025581 AMAQI
14th Aug 2025582 AMAQI
14th Aug 2025573 AMAQI
14th Aug 2025584 AMAQI

23°C17/28°C

14th Aug 2025545 AMAQI
14th Aug 2025546 AMAQI
14th Aug 2025557 AMAQI
14th Aug 2025558 AMAQI
14th Aug 2025569 AMAQI
14th Aug 20255610 AMAQI
14th Aug 20255011 AMAQI
14th Aug 20255212 PMAQI
14th Aug 2025531 PMAQI
14th Aug 2025492 PMAQI
14th Aug 2025473 PMAQI
14th Aug 2025484 PMAQI
14th Aug 2025465 PMAQI
14th Aug 2025446 PMAQI
14th Aug 2025477 PMAQI
14th Aug 2025528 PMAQI
14th Aug 2025529 PMAQI
14th Aug 20255410 PMAQI
14th Aug 20255411 PMAQI
15th Aug 20255412 AMAQI
15th Aug 2025541 AMAQI
15th Aug 2025352 AMAQI
15th Aug 2025343 AMAQI
15th Aug 2025314 AMAQI

22°C16/28°C

15th Aug 2025305 AMAQI
15th Aug 2025306 AMAQI
15th Aug 2025347 AMAQI
15th Aug 2025308 AMAQI
15th Aug 2025279 AMAQI
15th Aug 20253010 AMAQI
15th Aug 20253011 AMAQI
15th Aug 20252912 PMAQI
15th Aug 2025301 PMAQI
15th Aug 2025312 PMAQI
15th Aug 2025333 PMAQI
15th Aug 2025344 PMAQI
15th Aug 2025345 PMAQI
15th Aug 2025356 PMAQI
15th Aug 2025377 PMAQI
15th Aug 2025378 PMAQI
15th Aug 2025379 PMAQI
15th Aug 20253710 PMAQI
15th Aug 20253811 PMAQI
16th Aug 20253812 AMAQI
16th Aug 2025401 AMAQI
16th Aug 2025462 AMAQI
16th Aug 2025413 AMAQI
16th Aug 2025384 AMAQI

22°C17/29°C

16th Aug 2025465 AMAQI
16th Aug 2025446 AMAQI
16th Aug 2025447 AMAQI
16th Aug 2025468 AMAQI
16th Aug 2025509 AMAQI
16th Aug 20254510 AMAQI
16th Aug 20254511 AMAQI
16th Aug 20254412 PMAQI
16th Aug 2025421 PMAQI
16th Aug 2025432 PMAQI
16th Aug 2025443 PMAQI
16th Aug 2025464 PMAQI
16th Aug 2025425 PMAQI
16th Aug 2025416 PMAQI
16th Aug 2025487 PMAQI
16th Aug 2025438 PMAQI
16th Aug 2025449 PMAQI
16th Aug 20254410 PMAQI
16th Aug 20254611 PMAQI
17th Aug 20254412 AMAQI
17th Aug 2025401 AMAQI
17th Aug 2025412 AMAQI
17th Aug 2025303 AMAQI
17th Aug 2025314 AMAQI

20°C15/25°C

17th Aug 2025405 AMAQI
17th Aug 2025366 AMAQI
17th Aug 2025377 AMAQI
17th Aug 2025308 AMAQI
17th Aug 2025369 AMAQI
17th Aug 20253310 AMAQI
17th Aug 20253411 AMAQI
17th Aug 20253212 PMAQI
17th Aug 2025381 PMAQI
17th Aug 2025382 PMAQI
17th Aug 2025343 PMAQI
17th Aug 2025344 PMAQI
17th Aug 2025375 PMAQI
17th Aug 2025376 PMAQI
17th Aug 2025407 PMAQI
17th Aug 2025368 PMAQI
17th Aug 2025369 PMAQI
17th Aug 20253810 PMAQI
17th Aug 20253611 PMAQI
18th Aug 20253612 AMAQI
18th Aug 2025321 AMAQI
18th Aug 2025272 AMAQI
18th Aug 2025233 AMAQI
18th Aug 2025254 AMAQI

19°C13/25°C

18th Aug 2025295 AMAQI
18th Aug 2025286 AMAQI
18th Aug 2025287 AMAQI
18th Aug 2025298 AMAQI
18th Aug 2025339 AMAQI
18th Aug 20253510 AMAQI
18th Aug 20253211 AMAQI
18th Aug 20253212 PMAQI
18th Aug 2025281 PMAQI
18th Aug 2025312 PMAQI
18th Aug 2025263 PMAQI
18th Aug 2025284 PMAQI
18th Aug 2025285 PMAQI
18th Aug 2025296 PMAQI
18th Aug 2025277 PMAQI
18th Aug 2025288 PMAQI
18th Aug 2025299 PMAQI
18th Aug 20253010 PMAQI
18th Aug 20252911 PMAQI
19th Aug 20252812 AMAQI
19th Aug 2025281 AMAQI
19th Aug 2025262 AMAQI
19th Aug 2025203 AMAQI
19th Aug 2025304 AMAQI

19°C17/24°C

19th Aug 2025295 AMAQI
5 AM
19th Aug 2025306 AMAQI
19th Aug 2025297 AMAQI
19th Aug 2025368 AMAQI
19th Aug 2025399 AMAQI
12 PM
8 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 10 AM

35AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
11 AM - 8 PM

33AQI

10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 10 AM (Avg. 35), while the lowest AQI was between 11 AM to 8 PM (Avg. 33).
Night time
Avg. Highest Time
12 AM - 11 PM

35AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 4 AM

34AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 35), while the lowest AQI was between 12 AM to 4 AM (Avg. 34).

2025 Days Vs Air Quality

Thornton Heath, Croydon, United Kingdom

2025

73%

168

26%

60

0.8%

2

Total number of days with different AQI categories in last 231 days in 2025 (134 days remaining)

Good
168 Days
Moderate
60 Days
Poor
2 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 73%

Health Risk Level:

Low

In 2025, 73% of 231 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

Thornton Heath, Croydon, 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
26AQI
2nd January 2025
33AQI
3rd January 2025
47AQI
4th January 2025
54AQI
5th January 2025
26AQI
6th January 2025
24AQI
7th January 2025
29AQI
8th January 2025
41AQI
9th January 2025
56AQI
10th January 2025
71AQI
11th January 2025
110AQI
12th January 2025
86AQI
13th January 2025
53AQI
14th January 2025
53AQI
15th January 2025
49AQI
16th January 2025
43AQI
17th January 2025
55AQI
18th January 2025
71AQI
19th January 2025
64AQI
20th January 2025
60AQI
21st January 2025
64AQI
22nd January 2025
74AQI
23rd January 2025
49AQI
24th January 2025
41AQI
25th January 2025
39AQI
26th January 2025
35AQI
27th January 2025
30AQI
28th January 2025
30AQI
29th January 2025
31AQI
30th January 2025
33AQI
31st January 2025
35AQI
1st February 2025
41AQI
2nd February 2025
58AQI
3rd February 2025
57AQI
4th February 2025
31AQI
5th February 2025
39AQI
6th February 2025
44AQI
7th February 2025
43AQI
8th February 2025
65AQI
9th February 2025
56AQI
10th February 2025
92AQI
11th February 2025
76AQI
12th February 2025
65AQI
13th February 2025
72AQI
14th February 2025
67AQI
15th February 2025
88AQI
16th February 2025
64AQI
17th February 2025
56AQI
18th February 2025
64AQI
19th February 2025
71AQI
20th February 2025
42AQI
21st February 2025
40AQI
22nd February 2025
39AQI
23rd February 2025
34AQI
24th February 2025
28AQI
25th February 2025
35AQI
26th February 2025
31AQI
27th February 2025
30AQI
28th February 2025
50AQI
1st March 2025
53AQI
2nd March 2025
63AQI
3rd March 2025
74AQI
4th March 2025
73AQI
5th March 2025
94AQI
6th March 2025
75AQI
7th March 2025
53AQI
8th March 2025
62AQI
9th March 2025
98AQI
10th March 2025
145AQI
11th March 2025
59AQI
12th March 2025
38AQI
13th March 2025
32AQI
14th March 2025
44AQI
15th March 2025
33AQI
16th March 2025
30AQI
17th March 2025
34AQI
18th March 2025
49AQI
19th March 2025
64AQI
20th March 2025
57AQI
21st March 2025
71AQI
22nd March 2025
48AQI
23rd March 2025
78AQI
24th March 2025
90AQI
25th March 2025
83AQI
26th March 2025
57AQI
27th March 2025
48AQI
28th March 2025
32AQI
29th March 2025
30AQI
30th March 2025
36AQI
31st March 2025
39AQI
1st April 2025
37AQI
2nd April 2025
46AQI
3rd April 2025
61AQI
4th April 2025
77AQI
5th April 2025
40AQI
6th April 2025
30AQI
7th April 2025
32AQI
8th April 2025
55AQI
9th April 2025
41AQI
10th April 2025
40AQI
11th April 2025
59AQI
12th April 2025
67AQI
13th April 2025
46AQI
14th April 2025
29AQI
15th April 2025
46AQI
16th April 2025
24AQI
17th April 2025
30AQI
18th April 2025
40AQI
19th April 2025
41AQI
20th April 2025
35AQI
21st April 2025
47AQI
22nd April 2025
30AQI
23rd April 2025
24AQI
24th April 2025
46AQI
25th April 2025
47AQI
26th April 2025
59AQI
27th April 2025
70AQI
28th April 2025
54AQI
29th April 2025
57AQI
30th April 2025
59AQI
1st May 2025
71AQI
2nd May 2025
55AQI
3rd May 2025
50AQI
4th May 2025
26AQI
5th May 2025
27AQI
6th May 2025
25AQI
7th May 2025
29AQI
8th May 2025
25AQI
9th May 2025
33AQI
10th May 2025
34AQI
11th May 2025
42AQI
12th May 2025
35AQI
13th May 2025
40AQI
14th May 2025
39AQI
15th May 2025
39AQI
16th May 2025
43AQI
17th May 2025
36AQI
18th May 2025
46AQI
19th May 2025
39AQI
20th May 2025
32AQI
21st May 2025
39AQI
22nd May 2025
34AQI
23rd May 2025
31AQI
24th May 2025
31AQI
25th May 2025
21AQI
26th May 2025
25AQI
27th May 2025
23AQI
28th May 2025
21AQI
29th May 2025
23AQI
30th May 2025
24AQI
31st May 2025
26AQI
1st June 2025
25AQI
2nd June 2025
22AQI
3rd June 2025
25AQI
4th June 2025
23AQI
5th June 2025
20AQI
6th June 2025
18AQI
7th June 2025
17AQI
8th June 2025
20AQI
9th June 2025
53AQI
10th June 2025
36AQI
11th June 2025
36AQI
12th June 2025
48AQI
13th June 2025
43AQI
14th June 2025
43AQI
15th June 2025
29AQI
16th June 2025
30AQI
17th June 2025
30AQI
18th June 2025
34AQI
19th June 2025
43AQI
20th June 2025
50AQI
21st June 2025
44AQI
22nd June 2025
41AQI
23rd June 2025
24AQI
24th June 2025
25AQI
25th June 2025
23AQI
26th June 2025
26AQI
27th June 2025
24AQI
28th June 2025
30AQI
29th June 2025
39AQI
30th June 2025
37AQI
1st July 2025
46AQI
2nd July 2025
46AQI
3rd July 2025
45AQI
4th July 2025
37AQI
5th July 2025
38AQI
6th July 2025
36AQI
7th July 2025
28AQI
8th July 2025
28AQI
9th July 2025
29AQI
10th July 2025
30AQI
11th July 2025
32AQI
12th July 2025
32AQI
13th July 2025
35AQI
14th July 2025
39AQI
15th July 2025
28AQI
16th July 2025
26AQI
17th July 2025
27AQI
18th July 2025
31AQI
19th July 2025
29AQI
20th July 2025
24AQI
21st July 2025
18AQI
22nd July 2025
18AQI
23rd July 2025
37AQI
24th July 2025
47AQI
25th July 2025
40AQI
26th July 2025
36AQI
27th July 2025
27AQI
28th July 2025
30AQI
29th July 2025
31AQI
30th July 2025
33AQI
31st July 2025
27AQI
1st August 2025
22AQI
2nd August 2025
21AQI
3rd August 2025
27AQI
4th August 2025
24AQI
5th August 2025
25AQI
6th August 2025
29AQI
7th August 2025
30AQI
8th August 2025
36AQI
9th August 2025
29AQI
10th August 2025
47AQI
11th August 2025
55AQI
12th August 2025
53AQI
13th August 2025
59AQI
14th August 2025
53AQI
15th August 2025
35AQI
16th August 2025
44AQI
17th August 2025
36AQI
18th August 2025
29AQI

49AQI

53AQI

59AQI

46AQI

34AQI

32AQI

33AQI

36AQI

No. of days

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

202543AQI

18
12
1
14
14
13
17
1
20
10
29
2
29
1
31
14
4
168
60
2

Highest AQI recorded in

March

59AQI

Lowest AQI recorded in

June

32AQI

202428AQI

28
3
29
27
4
30
29
2
30
31
30
1
24
4
30
1
20
10
29
2
337
27

Highest AQI recorded in

November

48AQI

Lowest AQI recorded in

April

20AQI

202330AQI

25
4
2
3
1
25
23
5
31
25
5
29
30
1
24
6
30
29
30
1
304
23
2

Highest AQI recorded in

January

43AQI

Lowest AQI recorded in

July

19AQI

202239AQI

4
19
2
12
12
1
16
1
27
4
20
2
26
2
30
1
25
5
17
13
1
196
40
2
2

Highest AQI recorded in

March

58AQI

Lowest AQI recorded in

January

23AQI

202137AQI

23
7
13
7
17
8
2
22
8
14
3
26
4
26
5
26
23
7
28
3
26
4
8
252
56
2

Highest AQI recorded in

March

50AQI

Lowest AQI recorded in

August

22AQI

202035AQI

7
6
13
5
3
14
29
1
30
23
7
25
4
31
5
4
24
7
201
34
3

Highest AQI recorded in

April

58AQI

Lowest AQI recorded in

July

23AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
43AQI
Least Polluted Year Recorded
2024(Avg.)
28AQI

Thornton Heath's annual 2025 AQI (43) shows an average percentage change of 29.4% (worsened AQI) compared to previous years: 2020 (35), 2021 (37), 2022 (39), 2023 (30), 2024 (28).