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  • Caerphilly
  • Caerphilly
  • Historical Analysis
Caerphilly
HistoryAQIPM2.5PM10COSO2NO2O3

Caerphilly, Caerphilly, 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+

July Air Quality Analysis

Caerphilly, Caerphilly, United Kingdom

2021
2022
2023
2024
2025
AQI
.
Days
Days20252024202320222021
Jul. 12324623463
Jul. 21831573545
Jul. 31722483838
Jul. 41825393227
Jul. 51714492827
Jul. 6177482727
Jul. 71711502827
Jul. 81813544330
Jul. 91810514227
Jul. 10209423528
Jul. 11218495428
Jul. 122323463835
Jul. 132319334832
Jul. 142632476229
Jul. 152420372927
Jul. 162223572728
Jul. 171928322727
Jul. 1823275027
Jul. 1942236041
Jul. 207235656
Jul. 2111362752
Jul. 2216214258
Jul. 2317373649
Jul. 2417312745
Jul. 25102641
Jul. 26253052
Jul. 27162846
Jul. 28182529
Jul. 29434331
Jul. 30384527
Jul. 31385627

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Jul 2021
63AQI
Lowest AQI recorded on
6th Jul 2024
7AQI


Same Day Analysis (17th July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 19 of Good air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.

AQI Logo

Download 2024 Annual Data

World Air Quality Report

Globe

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

Caerphilly, Caerphilly, United Kingdom

AQI
Day
Night
.
5 AM20
6 AM19
7 AM17
8 AM17
9 AM20
10 AM21
11 AM20
12 PM19
1 PM20
2 PM17
3 PM15
4 PM16
5 PM16
6 PM16
7 PM17
8 PM18
9 PM19
10 PM18
11 PM18
12 AM18
1 AM18
2 AM19
3 AM19
4 AM

5 AM18th Jul 2025

9 PM

4 AM19th Jul 2025

Day time
Avg. Highest Time
10AM18th Jul

21AQI

Avg. Lowest Time
3PM18th Jul

15AQI

Night time
Avg. Highest Time
2AM19th Jul

19AQI

Avg. Lowest Time
1AM19th Jul

18AQI

In the last 24 hours,

Caerphilly's AQI reached its highest point of 21 at 10 AM during the Day, while the lowest point, undefined, was recorded at 4 AM during the Night between 18th Jul and 19th Jul 2025.

Day & Night AQI Trend : Jun - Jul 2025

Caerphilly, Caerphilly, United Kingdom

JunJul
19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th
Day
Night
19th Jun 2025355 AMAQI
19th Jun 2025366 AMAQI
19th Jun 2025367 AMAQI
19th Jun 2025318 AMAQI
19th Jun 2025339 AMAQI
19th Jun 20253110 AMAQI
19th Jun 20252911 AMAQI
19th Jun 20253012 PMAQI
19th Jun 2025311 PMAQI
19th Jun 2025352 PMAQI
19th Jun 2025363 PMAQI
19th Jun 2025374 PMAQI
19th Jun 2025375 PMAQI
19th Jun 2025356 PMAQI
19th Jun 2025377 PMAQI
19th Jun 2025408 PMAQI
19th Jun 2025349 PMAQI
19th Jun 20253410 PMAQI
19th Jun 20253411 PMAQI
20th Jun 20253412 AMAQI
20th Jun 2025431 AMAQI
20th Jun 2025532 AMAQI
20th Jun 2025523 AMAQI
20th Jun 2025404 AMAQI

19°C14/25°C

20th Jun 2025465 AMAQI
20th Jun 2025436 AMAQI
20th Jun 2025507 AMAQI
20th Jun 2025488 AMAQI
20th Jun 2025479 AMAQI
20th Jun 20254410 AMAQI
20th Jun 20254511 AMAQI
20th Jun 20254612 PMAQI
20th Jun 2025491 PMAQI
20th Jun 2025432 PMAQI
20th Jun 2025443 PMAQI
20th Jun 2025444 PMAQI
20th Jun 2025465 PMAQI
20th Jun 2025446 PMAQI
20th Jun 2025397 PMAQI
20th Jun 2025388 PMAQI
20th Jun 2025429 PMAQI
20th Jun 20254310 PMAQI
20th Jun 20254611 PMAQI
21st Jun 20254212 AMAQI
21st Jun 2025421 AMAQI
21st Jun 2025452 AMAQI
21st Jun 2025433 AMAQI
21st Jun 2025504 AMAQI

20°C16/24°C

21st Jun 2025425 AMAQI
21st Jun 2025426 AMAQI
21st Jun 2025437 AMAQI
21st Jun 2025418 AMAQI
21st Jun 2025399 AMAQI
21st Jun 20253710 AMAQI
21st Jun 20253711 AMAQI
21st Jun 20253812 PMAQI
21st Jun 2025381 PMAQI
21st Jun 2025382 PMAQI
21st Jun 2025383 PMAQI
21st Jun 2025384 PMAQI
21st Jun 2025385 PMAQI
21st Jun 2025386 PMAQI
21st Jun 2025387 PMAQI
21st Jun 2025388 PMAQI
21st Jun 2025389 PMAQI
21st Jun 20253810 PMAQI
21st Jun 20253811 PMAQI
22nd Jun 20253812 AMAQI
22nd Jun 2025381 AMAQI
22nd Jun 2025382 AMAQI
22nd Jun 2025383 AMAQI
22nd Jun 2025384 AMAQI

18°C13/24°C

22nd Jun 2025385 AMAQI
22nd Jun 2025386 AMAQI
22nd Jun 2025387 AMAQI
22nd Jun 2025388 AMAQI
22nd Jun 2025389 AMAQI
22nd Jun 20253810 AMAQI
22nd Jun 20253811 AMAQI
22nd Jun 20253812 PMAQI
22nd Jun 2025381 PMAQI
22nd Jun 2025382 PMAQI
22nd Jun 2025383 PMAQI
22nd Jun 2025384 PMAQI
22nd Jun 2025385 PMAQI
22nd Jun 2025386 PMAQI
22nd Jun 2025387 PMAQI
22nd Jun 2025388 PMAQI
22nd Jun 2025389 PMAQI
22nd Jun 20253410 PMAQI
22nd Jun 20253711 PMAQI
23rd Jun 20253312 AMAQI
23rd Jun 2025321 AMAQI
23rd Jun 2025252 AMAQI
23rd Jun 2025183 AMAQI
23rd Jun 2025164 AMAQI

15°C13/18°C

23rd Jun 2025165 AMAQI
23rd Jun 2025146 AMAQI
23rd Jun 2025167 AMAQI
23rd Jun 2025178 AMAQI
23rd Jun 2025229 AMAQI
23rd Jun 20252310 AMAQI
23rd Jun 20252211 AMAQI
23rd Jun 20252212 PMAQI
23rd Jun 2025221 PMAQI
23rd Jun 2025222 PMAQI
23rd Jun 2025213 PMAQI
23rd Jun 2025214 PMAQI
23rd Jun 2025225 PMAQI
23rd Jun 2025226 PMAQI
23rd Jun 2025207 PMAQI
23rd Jun 2025208 PMAQI
23rd Jun 2025219 PMAQI
23rd Jun 20252110 PMAQI
23rd Jun 20252111 PMAQI
24th Jun 20252312 AMAQI
24th Jun 2025211 AMAQI
24th Jun 2025222 AMAQI
24th Jun 2025213 AMAQI
24th Jun 2025194 AMAQI

13°C10/16°C

24th Jun 2025195 AMAQI
24th Jun 2025206 AMAQI
24th Jun 2025207 AMAQI
24th Jun 2025198 AMAQI
24th Jun 2025149 AMAQI
24th Jun 20251410 AMAQI
24th Jun 20251411 AMAQI
24th Jun 20251612 PMAQI
24th Jun 2025201 PMAQI
24th Jun 2025192 PMAQI
24th Jun 2025193 PMAQI
24th Jun 2025204 PMAQI
24th Jun 2025195 PMAQI
24th Jun 2025196 PMAQI
24th Jun 2025197 PMAQI
24th Jun 2025198 PMAQI
24th Jun 2025209 PMAQI
24th Jun 20252010 PMAQI
24th Jun 20251911 PMAQI
25th Jun 20252012 AMAQI
25th Jun 2025181 AMAQI
25th Jun 2025142 AMAQI
25th Jun 2025123 AMAQI
25th Jun 2025134 AMAQI

15°C13/18°C

25th Jun 2025135 AMAQI
25th Jun 2025146 AMAQI
25th Jun 2025167 AMAQI
25th Jun 2025148 AMAQI
25th Jun 2025149 AMAQI
25th Jun 20251410 AMAQI
25th Jun 20251411 AMAQI
25th Jun 20251412 PMAQI
25th Jun 2025161 PMAQI
25th Jun 2025152 PMAQI
25th Jun 2025153 PMAQI
25th Jun 2025164 PMAQI
25th Jun 2025165 PMAQI
25th Jun 2025166 PMAQI
25th Jun 2025147 PMAQI
25th Jun 2025158 PMAQI
25th Jun 2025169 PMAQI
25th Jun 20251710 PMAQI
25th Jun 20251611 PMAQI
26th Jun 20251612 AMAQI
26th Jun 2025161 AMAQI
26th Jun 2025132 AMAQI
26th Jun 2025123 AMAQI
26th Jun 2025124 AMAQI

17°C15/21°C

26th Jun 2025145 AMAQI
26th Jun 2025146 AMAQI
26th Jun 2025147 AMAQI
26th Jun 2025148 AMAQI
26th Jun 2025139 AMAQI
26th Jun 20251310 AMAQI
26th Jun 20251411 AMAQI
26th Jun 20251612 PMAQI
26th Jun 2025161 PMAQI
26th Jun 2025162 PMAQI
26th Jun 2025163 PMAQI
26th Jun 2025164 PMAQI
26th Jun 2025165 PMAQI
26th Jun 2025176 PMAQI
26th Jun 2025167 PMAQI
26th Jun 2025158 PMAQI
26th Jun 2025149 PMAQI
26th Jun 20251610 PMAQI
26th Jun 20251511 PMAQI
27th Jun 20251612 AMAQI
27th Jun 2025151 AMAQI
27th Jun 2025152 AMAQI
27th Jun 2025163 AMAQI
27th Jun 2025154 AMAQI

15°C13/17°C

27th Jun 2025165 AMAQI
27th Jun 2025176 AMAQI
27th Jun 2025177 AMAQI
27th Jun 2025208 AMAQI
27th Jun 2025229 AMAQI
27th Jun 20252210 AMAQI
27th Jun 20252211 AMAQI
27th Jun 20252012 PMAQI
27th Jun 2025161 PMAQI
27th Jun 2025162 PMAQI
27th Jun 2025163 PMAQI
27th Jun 2025164 PMAQI
27th Jun 2025165 PMAQI
27th Jun 2025166 PMAQI
27th Jun 2025187 PMAQI
27th Jun 2025188 PMAQI
27th Jun 2025179 PMAQI
27th Jun 20251710 PMAQI
27th Jun 20251811 PMAQI
28th Jun 20251812 AMAQI
28th Jun 2025161 AMAQI
28th Jun 2025142 AMAQI
28th Jun 2025143 AMAQI
28th Jun 2025164 AMAQI

17°C12/21°C

28th Jun 2025145 AMAQI
28th Jun 2025136 AMAQI
28th Jun 2025147 AMAQI
28th Jun 2025168 AMAQI
28th Jun 2025129 AMAQI
28th Jun 20251210 AMAQI
28th Jun 20251411 AMAQI
28th Jun 20251512 PMAQI
28th Jun 2025161 PMAQI
28th Jun 2025162 PMAQI
28th Jun 2025163 PMAQI
28th Jun 2025164 PMAQI
28th Jun 2025175 PMAQI
28th Jun 2025186 PMAQI
28th Jun 2025187 PMAQI
28th Jun 2025178 PMAQI
28th Jun 2025169 PMAQI
28th Jun 20251710 PMAQI
28th Jun 20251711 PMAQI
29th Jun 20251612 AMAQI
29th Jun 2025181 AMAQI
29th Jun 2025212 AMAQI
29th Jun 2025203 AMAQI
29th Jun 2025184 AMAQI

18°C16/21°C

29th Jun 2025175 AMAQI
29th Jun 2025186 AMAQI
29th Jun 2025197 AMAQI
29th Jun 2025198 AMAQI
29th Jun 2025169 AMAQI
29th Jun 20251510 AMAQI
29th Jun 20251411 AMAQI
29th Jun 20251512 PMAQI
29th Jun 2025171 PMAQI
29th Jun 2025172 PMAQI
29th Jun 2025183 PMAQI
29th Jun 2025174 PMAQI
29th Jun 2025185 PMAQI
29th Jun 2025166 PMAQI
29th Jun 2025167 PMAQI
29th Jun 2025178 PMAQI
29th Jun 2025179 PMAQI
29th Jun 20251710 PMAQI
29th Jun 20251811 PMAQI
30th Jun 20251812 AMAQI
30th Jun 2025171 AMAQI
30th Jun 2025172 AMAQI
30th Jun 2025213 AMAQI
30th Jun 2025204 AMAQI

18°C16/22°C

30th Jun 2025195 AMAQI
30th Jun 2025196 AMAQI
30th Jun 2025197 AMAQI
30th Jun 2025208 AMAQI
30th Jun 2025209 AMAQI
30th Jun 20252410 AMAQI
30th Jun 20252311 AMAQI
30th Jun 20252212 PMAQI
30th Jun 2025201 PMAQI
30th Jun 2025202 PMAQI
30th Jun 2025183 PMAQI
30th Jun 2025184 PMAQI
30th Jun 2025195 PMAQI
30th Jun 2025206 PMAQI
30th Jun 2025227 PMAQI
30th Jun 2025218 PMAQI
30th Jun 2025209 PMAQI
30th Jun 20252010 PMAQI
30th Jun 20251911 PMAQI
1st Jul 20251812 AMAQI
1st Jul 2025211 AMAQI
1st Jul 2025282 AMAQI
1st Jul 2025253 AMAQI
1st Jul 2025264 AMAQI

19°C15/25°C

1st Jul 2025285 AMAQI
1st Jul 2025286 AMAQI
1st Jul 2025267 AMAQI
1st Jul 2025218 AMAQI
1st Jul 2025209 AMAQI
1st Jul 20252010 AMAQI
1st Jul 20252111 AMAQI
1st Jul 20252212 PMAQI
1st Jul 2025221 PMAQI
1st Jul 2025242 PMAQI
1st Jul 2025253 PMAQI
1st Jul 2025244 PMAQI
1st Jul 2025255 PMAQI
1st Jul 2025256 PMAQI
1st Jul 2025237 PMAQI
1st Jul 2025228 PMAQI
1st Jul 2025229 PMAQI
1st Jul 20252310 PMAQI
1st Jul 20252411 PMAQI
2nd Jul 20252312 AMAQI
2nd Jul 2025221 AMAQI
2nd Jul 2025202 AMAQI
2nd Jul 2025193 AMAQI
2nd Jul 2025194 AMAQI

18°C15/22°C

2nd Jul 2025205 AMAQI
2nd Jul 2025196 AMAQI
2nd Jul 2025187 AMAQI
2nd Jul 2025168 AMAQI
2nd Jul 2025169 AMAQI
2nd Jul 20251810 AMAQI
2nd Jul 20251611 AMAQI
2nd Jul 20251612 PMAQI
2nd Jul 2025171 PMAQI
2nd Jul 2025172 PMAQI
2nd Jul 2025173 PMAQI
2nd Jul 2025174 PMAQI
2nd Jul 2025175 PMAQI
2nd Jul 2025186 PMAQI
2nd Jul 2025187 PMAQI
2nd Jul 2025178 PMAQI
2nd Jul 2025179 PMAQI
2nd Jul 20251710 PMAQI
2nd Jul 20251711 PMAQI
3rd Jul 20251712 AMAQI
3rd Jul 2025171 AMAQI
3rd Jul 2025172 AMAQI
3rd Jul 2025183 AMAQI
3rd Jul 2025184 AMAQI

15°C10/19°C

3rd Jul 2025185 AMAQI
3rd Jul 2025186 AMAQI
3rd Jul 2025187 AMAQI
3rd Jul 2025188 AMAQI
3rd Jul 2025189 AMAQI
3rd Jul 20251610 AMAQI
3rd Jul 20251711 AMAQI
3rd Jul 20251812 PMAQI
3rd Jul 2025171 PMAQI
3rd Jul 2025162 PMAQI
3rd Jul 2025173 PMAQI
3rd Jul 2025164 PMAQI
3rd Jul 2025165 PMAQI
3rd Jul 2025176 PMAQI
3rd Jul 2025157 PMAQI
3rd Jul 2025178 PMAQI
3rd Jul 2025179 PMAQI
3rd Jul 20251710 PMAQI
3rd Jul 20251711 PMAQI
4th Jul 20251812 AMAQI
4th Jul 2025181 AMAQI
4th Jul 2025182 AMAQI
4th Jul 2025173 AMAQI
4th Jul 2025184 AMAQI

14°C10/18°C

4th Jul 2025205 AMAQI
4th Jul 2025206 AMAQI
4th Jul 2025217 AMAQI
4th Jul 2025228 AMAQI
4th Jul 2025229 AMAQI
4th Jul 20252210 AMAQI
4th Jul 20251911 AMAQI
4th Jul 20251912 PMAQI
4th Jul 2025181 PMAQI
4th Jul 2025172 PMAQI
4th Jul 2025183 PMAQI
4th Jul 2025194 PMAQI
4th Jul 2025185 PMAQI
4th Jul 2025186 PMAQI
4th Jul 2025187 PMAQI
4th Jul 2025188 PMAQI
4th Jul 2025189 PMAQI
4th Jul 20251810 PMAQI
4th Jul 20251811 PMAQI
5th Jul 20251912 AMAQI
5th Jul 2025191 AMAQI
5th Jul 2025202 AMAQI
5th Jul 2025203 AMAQI
5th Jul 2025184 AMAQI

15°C11/19°C

5th Jul 2025165 AMAQI
5th Jul 2025156 AMAQI
5th Jul 2025157 AMAQI
5th Jul 2025148 AMAQI
5th Jul 2025149 AMAQI
5th Jul 20251410 AMAQI
5th Jul 20251411 AMAQI
5th Jul 20251612 PMAQI
5th Jul 2025171 PMAQI
5th Jul 2025162 PMAQI
5th Jul 2025173 PMAQI
5th Jul 2025174 PMAQI
5th Jul 2025175 PMAQI
5th Jul 2025176 PMAQI
5th Jul 2025177 PMAQI
5th Jul 2025178 PMAQI
5th Jul 2025189 PMAQI
5th Jul 20251810 PMAQI
5th Jul 20251911 PMAQI
6th Jul 20251912 AMAQI
6th Jul 2025181 AMAQI
6th Jul 2025182 AMAQI
6th Jul 2025173 AMAQI
6th Jul 2025164 AMAQI

15°C15/17°C

6th Jul 2025175 AMAQI
6th Jul 2025176 AMAQI
6th Jul 2025157 AMAQI
6th Jul 2025158 AMAQI
6th Jul 2025239 AMAQI
6th Jul 20251410 AMAQI
6th Jul 20251211 AMAQI
6th Jul 20251512 PMAQI
6th Jul 2025171 PMAQI
6th Jul 2025162 PMAQI
6th Jul 2025163 PMAQI
6th Jul 2025174 PMAQI
6th Jul 2025175 PMAQI
6th Jul 2025166 PMAQI
6th Jul 2025167 PMAQI
6th Jul 2025188 PMAQI
6th Jul 2025179 PMAQI
6th Jul 20251710 PMAQI
6th Jul 20251711 PMAQI
7th Jul 20251812 AMAQI
7th Jul 2025161 AMAQI
7th Jul 2025142 AMAQI
7th Jul 2025143 AMAQI
7th Jul 2025144 AMAQI

15°C12/18°C

7th Jul 2025165 AMAQI
7th Jul 2025166 AMAQI
7th Jul 2025167 AMAQI
7th Jul 2025168 AMAQI
7th Jul 2025179 AMAQI
7th Jul 20251610 AMAQI
7th Jul 20251711 AMAQI
7th Jul 20251712 PMAQI
7th Jul 2025171 PMAQI
7th Jul 2025182 PMAQI
7th Jul 2025163 PMAQI
7th Jul 2025164 PMAQI
7th Jul 2025175 PMAQI
7th Jul 2025176 PMAQI
7th Jul 2025187 PMAQI
7th Jul 2025188 PMAQI
7th Jul 2025179 PMAQI
7th Jul 20251810 PMAQI
7th Jul 20251711 PMAQI
8th Jul 20251812 AMAQI
8th Jul 2025171 AMAQI
8th Jul 2025172 AMAQI
8th Jul 2025173 AMAQI
8th Jul 2025184 AMAQI

14°C12/18°C

8th Jul 2025185 AMAQI
8th Jul 2025186 AMAQI
8th Jul 2025187 AMAQI
8th Jul 2025208 AMAQI
8th Jul 2025199 AMAQI
8th Jul 20252010 AMAQI
8th Jul 20251811 AMAQI
8th Jul 20251812 PMAQI
8th Jul 2025191 PMAQI
8th Jul 2025182 PMAQI
8th Jul 2025183 PMAQI
8th Jul 2025174 PMAQI
8th Jul 2025185 PMAQI
8th Jul 2025186 PMAQI
8th Jul 2025187 PMAQI
8th Jul 2025188 PMAQI
8th Jul 2025189 PMAQI
8th Jul 20251810 PMAQI
8th Jul 20251811 PMAQI
9th Jul 20251812 AMAQI
9th Jul 2025181 AMAQI
9th Jul 2025162 AMAQI
9th Jul 2025163 AMAQI
9th Jul 2025164 AMAQI

14°C9/19°C

9th Jul 2025195 AMAQI
9th Jul 2025196 AMAQI
9th Jul 2025187 AMAQI
9th Jul 2025188 AMAQI
9th Jul 2025189 AMAQI
9th Jul 20251610 AMAQI
9th Jul 20251811 AMAQI
9th Jul 20251712 PMAQI
9th Jul 2025191 PMAQI
9th Jul 2025182 PMAQI
9th Jul 2025183 PMAQI
9th Jul 2025184 PMAQI
9th Jul 2025185 PMAQI
9th Jul 2025176 PMAQI
9th Jul 2025177 PMAQI
9th Jul 2025178 PMAQI
9th Jul 2025189 PMAQI
9th Jul 20251810 PMAQI
9th Jul 20251811 PMAQI
10th Jul 20251812 AMAQI
10th Jul 2025181 AMAQI
10th Jul 2025182 AMAQI
10th Jul 2025183 AMAQI
10th Jul 2025184 AMAQI

17°C11/22°C

10th Jul 2025185 AMAQI
10th Jul 2025206 AMAQI
10th Jul 2025187 AMAQI
10th Jul 2025218 AMAQI
10th Jul 2025229 AMAQI
10th Jul 20252410 AMAQI
10th Jul 20252111 AMAQI
10th Jul 20252212 PMAQI
10th Jul 2025201 PMAQI
10th Jul 2025212 PMAQI
10th Jul 2025223 PMAQI
10th Jul 2025224 PMAQI
10th Jul 2025225 PMAQI
10th Jul 2025216 PMAQI
10th Jul 2025207 PMAQI
10th Jul 2025198 PMAQI
10th Jul 2025189 PMAQI
10th Jul 20251910 PMAQI
10th Jul 20251911 PMAQI
11th Jul 20252012 AMAQI
11th Jul 2025191 AMAQI
11th Jul 2025182 AMAQI
11th Jul 2025183 AMAQI
11th Jul 2025204 AMAQI

20°C15/25°C

11th Jul 2025205 AMAQI
11th Jul 2025216 AMAQI
11th Jul 2025247 AMAQI
11th Jul 2025268 AMAQI
11th Jul 2025229 AMAQI
11th Jul 20252210 AMAQI
11th Jul 20252211 AMAQI
11th Jul 20252312 PMAQI
11th Jul 2025221 PMAQI
11th Jul 2025232 PMAQI
11th Jul 2025243 PMAQI
11th Jul 2025234 PMAQI
11th Jul 2025225 PMAQI
11th Jul 2025236 PMAQI
11th Jul 2025207 PMAQI
11th Jul 2025208 PMAQI
11th Jul 2025229 PMAQI
11th Jul 20252210 PMAQI
11th Jul 20252211 PMAQI
12th Jul 20252212 AMAQI
12th Jul 2025241 AMAQI
12th Jul 2025222 AMAQI
12th Jul 2025213 AMAQI
12th Jul 2025224 AMAQI

22°C16/28°C

12th Jul 2025245 AMAQI
12th Jul 2025236 AMAQI
12th Jul 2025227 AMAQI
12th Jul 2025248 AMAQI
12th Jul 2025249 AMAQI
12th Jul 20252410 AMAQI
12th Jul 20252311 AMAQI
12th Jul 20252412 PMAQI
12th Jul 2025221 PMAQI
12th Jul 2025262 PMAQI
12th Jul 2025263 PMAQI
12th Jul 2025254 PMAQI
12th Jul 2025265 PMAQI
12th Jul 2025266 PMAQI
12th Jul 2025227 PMAQI
12th Jul 2025228 PMAQI
12th Jul 2025229 PMAQI
12th Jul 20252410 PMAQI
12th Jul 20252411 PMAQI
13th Jul 20252512 AMAQI
13th Jul 2025261 AMAQI
13th Jul 2025222 AMAQI
13th Jul 2025223 AMAQI
13th Jul 2025204 AMAQI

22°C16/29°C

13th Jul 2025225 AMAQI
13th Jul 2025246 AMAQI
13th Jul 2025267 AMAQI
13th Jul 2025228 AMAQI
13th Jul 2025229 AMAQI
13th Jul 20251910 AMAQI
13th Jul 20251911 AMAQI
13th Jul 20252112 PMAQI
13th Jul 2025231 PMAQI
13th Jul 2025232 PMAQI
13th Jul 2025223 PMAQI
13th Jul 2025234 PMAQI
13th Jul 2025235 PMAQI
13th Jul 2025236 PMAQI
13th Jul 2025257 PMAQI
13th Jul 2025258 PMAQI
13th Jul 2025249 PMAQI
13th Jul 20252410 PMAQI
13th Jul 20252411 PMAQI
14th Jul 20252412 AMAQI
14th Jul 2025251 AMAQI
14th Jul 2025312 AMAQI
14th Jul 2025313 AMAQI
14th Jul 2025304 AMAQI

20°C14/26°C

14th Jul 2025345 AMAQI
14th Jul 2025286 AMAQI
14th Jul 2025227 AMAQI
14th Jul 2025228 AMAQI
14th Jul 2025239 AMAQI
14th Jul 20252410 AMAQI
14th Jul 20252711 AMAQI
14th Jul 20252412 PMAQI
14th Jul 2025261 PMAQI
14th Jul 2025252 PMAQI
14th Jul 2025243 PMAQI
14th Jul 2025244 PMAQI
14th Jul 2025255 PMAQI
14th Jul 2025246 PMAQI
14th Jul 2025277 PMAQI
14th Jul 2025258 PMAQI
14th Jul 2025289 PMAQI
14th Jul 20252710 PMAQI
14th Jul 20252811 PMAQI
15th Jul 20252712 AMAQI
15th Jul 2025261 AMAQI
15th Jul 2025242 AMAQI
15th Jul 2025213 AMAQI
15th Jul 2025194 AMAQI

16°C13/18°C

15th Jul 2025245 AMAQI
15th Jul 2025216 AMAQI
15th Jul 2025237 AMAQI
15th Jul 2025238 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20252210 AMAQI
15th Jul 20252211 AMAQI
15th Jul 20252212 PMAQI
15th Jul 2025231 PMAQI
15th Jul 2025262 PMAQI
15th Jul 2025263 PMAQI
15th Jul 2025264 PMAQI
15th Jul 2025265 PMAQI
15th Jul 2025266 PMAQI
15th Jul 2025277 PMAQI
15th Jul 2025278 PMAQI
15th Jul 2025249 PMAQI
15th Jul 20252310 PMAQI
15th Jul 20252311 PMAQI
16th Jul 20252412 AMAQI
16th Jul 2025211 AMAQI
16th Jul 2025232 AMAQI
16th Jul 2025243 AMAQI
16th Jul 2025204 AMAQI

15°C13/17°C

16th Jul 2025225 AMAQI
16th Jul 2025256 AMAQI
16th Jul 2025207 AMAQI
16th Jul 2025228 AMAQI
16th Jul 2025229 AMAQI
16th Jul 20252310 AMAQI
16th Jul 20252211 AMAQI
16th Jul 20252312 PMAQI
16th Jul 2025201 PMAQI
16th Jul 2025202 PMAQI
16th Jul 2025223 PMAQI
16th Jul 2025224 PMAQI
16th Jul 2025225 PMAQI
16th Jul 2025216 PMAQI
16th Jul 2025227 PMAQI
16th Jul 2025218 PMAQI
16th Jul 2025249 PMAQI
16th Jul 20252310 PMAQI
16th Jul 20252211 PMAQI
17th Jul 20252212 AMAQI
17th Jul 2025201 AMAQI
17th Jul 2025232 AMAQI
17th Jul 2025213 AMAQI
17th Jul 2025204 AMAQI

16°C12/21°C

17th Jul 2025195 AMAQI
17th Jul 2025186 AMAQI
17th Jul 2025197 AMAQI
17th Jul 2025178 AMAQI
17th Jul 2025209 AMAQI
17th Jul 20251710 AMAQI
17th Jul 20251911 AMAQI
17th Jul 20251712 PMAQI
17th Jul 2025161 PMAQI
17th Jul 2025172 PMAQI
17th Jul 2025183 PMAQI
17th Jul 2025174 PMAQI
17th Jul 2025175 PMAQI
17th Jul 2025176 PMAQI
17th Jul 2025187 PMAQI
17th Jul 2025198 PMAQI
17th Jul 2025199 PMAQI
17th Jul 20251910 PMAQI
17th Jul 20252011 PMAQI
18th Jul 20252012 AMAQI
18th Jul 2025191 AMAQI
18th Jul 2025192 AMAQI
18th Jul 2025203 AMAQI
18th Jul 2025204 AMAQI

18°C15/22°C

18th Jul 2025205 AMAQI
18th Jul 2025196 AMAQI
18th Jul 2025177 AMAQI
18th Jul 2025178 AMAQI
18th Jul 2025209 AMAQI
18th Jul 20252110 AMAQI
18th Jul 20252011 AMAQI
18th Jul 20251912 PMAQI
18th Jul 2025201 PMAQI
18th Jul 2025172 PMAQI
18th Jul 2025153 PMAQI
18th Jul 2025164 PMAQI
18th Jul 2025165 PMAQI
18th Jul 2025166 PMAQI
18th Jul 2025177 PMAQI
18th Jul 2025188 PMAQI
18th Jul 2025199 PMAQI
18th Jul 20251810 PMAQI
18th Jul 20251811 PMAQI
19th Jul 20251812 AMAQI
19th Jul 2025181 AMAQI
19th Jul 2025192 AMAQI
19th Jul 2025193 AMAQI

17°C14/20°C

5 AM
1 PM
9 PM
1 AM
4 AM

0°C0/0°C

Day time
Avg. Highest Time
5 AM - 9 PM

22AQI

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

22AQI

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. 22), while the lowest AQI was between 5 AM to 9 PM (Avg. 22).
Night time
Avg. Highest Time
12 AM - 11 PM

22AQI

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

22AQI

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. 22), while the lowest AQI was between 12 AM to 11 PM (Avg. 22).

2025 Days Vs Air Quality

Caerphilly, Caerphilly, United Kingdom

2025

81%

160

19%

38

Total number of days with different AQI categories in last 200 days in 2025 (165 days remaining)

Good
160 Days
Moderate
38 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 81%

Health Risk Level:

Low

In 2025, 81% of 200 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

Caerphilly, Caerphilly, 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
29AQI
2nd January 2025
31AQI
3rd January 2025
41AQI
4th January 2025
43AQI
5th January 2025
29AQI
6th January 2025
26AQI
7th January 2025
25AQI
8th January 2025
33AQI
9th January 2025
34AQI
10th January 2025
40AQI
11th January 2025
51AQI
12th January 2025
64AQI
13th January 2025
38AQI
14th January 2025
33AQI
15th January 2025
36AQI
16th January 2025
51AQI
17th January 2025
55AQI
18th January 2025
57AQI
19th January 2025
64AQI
20th January 2025
63AQI
21st January 2025
63AQI
22nd January 2025
59AQI
23rd January 2025
34AQI
24th January 2025
46AQI
25th January 2025
35AQI
26th January 2025
32AQI
27th January 2025
33AQI
28th January 2025
27AQI
29th January 2025
27AQI
30th January 2025
30AQI
31st January 2025
35AQI
1st February 2025
40AQI
2nd February 2025
35AQI
3rd February 2025
41AQI
4th February 2025
29AQI
5th February 2025
31AQI
6th February 2025
35AQI
7th February 2025
34AQI
8th February 2025
46AQI
9th February 2025
62AQI
10th February 2025
57AQI
11th February 2025
56AQI
12th February 2025
56AQI
13th February 2025
64AQI
14th February 2025
66AQI
15th February 2025
74AQI
16th February 2025
67AQI
17th February 2025
67AQI
18th February 2025
69AQI
19th February 2025
78AQI
20th February 2025
36AQI
21st February 2025
35AQI
22nd February 2025
36AQI
23rd February 2025
30AQI
24th February 2025
31AQI
25th February 2025
28AQI
26th February 2025
27AQI
27th February 2025
27AQI
28th February 2025
38AQI
1st March 2025
35AQI
2nd March 2025
37AQI
3rd March 2025
43AQI
4th March 2025
52AQI
5th March 2025
68AQI
6th March 2025
75AQI
7th March 2025
59AQI
8th March 2025
49AQI
9th March 2025
62AQI
10th March 2025
88AQI
11th March 2025
57AQI
12th March 2025
32AQI
13th March 2025
26AQI
14th March 2025
31AQI
15th March 2025
26AQI
16th March 2025
27AQI
17th March 2025
27AQI
18th March 2025
46AQI
19th March 2025
62AQI
20th March 2025
57AQI
21st March 2025
52AQI
22nd March 2025
43AQI
23rd March 2025
50AQI
24th March 2025
82AQI
25th March 2025
52AQI
26th March 2025
26AQI
27th March 2025
26AQI
28th March 2025
20AQI
29th March 2025
21AQI
30th March 2025
35AQI
31st March 2025
44AQI
1st April 2025
50AQI
2nd April 2025
41AQI
3rd April 2025
44AQI
4th April 2025
58AQI
5th April 2025
40AQI
6th April 2025
24AQI
7th April 2025
29AQI
8th April 2025
41AQI
9th April 2025
48AQI
10th April 2025
51AQI
11th April 2025
62AQI
12th April 2025
54AQI
13th April 2025
34AQI
14th April 2025
19AQI
15th April 2025
28AQI
16th April 2025
17AQI
17th April 2025
19AQI
18th April 2025
21AQI
19th April 2025
28AQI
20th April 2025
27AQI
21st April 2025
24AQI
22nd April 2025
21AQI
23rd April 2025
16AQI
24th April 2025
39AQI
25th April 2025
49AQI
26th April 2025
44AQI
27th April 2025
18AQI
28th April 2025
23AQI
29th April 2025
45AQI
30th April 2025
52AQI
1st May 2025
47AQI
2nd May 2025
38AQI
3rd May 2025
24AQI
4th May 2025
18AQI
5th May 2025
16AQI
6th May 2025
20AQI
7th May 2025
36AQI
8th May 2025
21AQI
9th May 2025
28AQI
10th May 2025
25AQI
11th May 2025
30AQI
12th May 2025
31AQI
13th May 2025
34AQI
14th May 2025
31AQI
15th May 2025
31AQI
16th May 2025
37AQI
17th May 2025
39AQI
18th May 2025
42AQI
19th May 2025
37AQI
20th May 2025
35AQI
21st May 2025
36AQI
22nd May 2025
27AQI
23rd May 2025
38AQI
24th May 2025
22AQI
25th May 2025
18AQI
26th May 2025
22AQI
27th May 2025
20AQI
28th May 2025
19AQI
29th May 2025
18AQI
30th May 2025
19AQI
31st May 2025
17AQI
1st June 2025
21AQI
2nd June 2025
23AQI
3rd June 2025
20AQI
4th June 2025
23AQI
5th June 2025
16AQI
6th June 2025
16AQI
7th June 2025
14AQI
8th June 2025
21AQI
9th June 2025
56AQI
10th June 2025
36AQI
11th June 2025
30AQI
12th June 2025
40AQI
13th June 2025
39AQI
14th June 2025
28AQI
15th June 2025
25AQI
16th June 2025
25AQI
17th June 2025
29AQI
18th June 2025
28AQI
19th June 2025
33AQI
20th June 2025
43AQI
21st June 2025
40AQI
22nd June 2025
38AQI
23rd June 2025
24AQI
24th June 2025
20AQI
25th June 2025
16AQI
26th June 2025
15AQI
27th June 2025
17AQI
28th June 2025
16AQI
29th June 2025
17AQI
30th June 2025
19AQI
1st July 2025
23AQI
2nd July 2025
18AQI
3rd July 2025
17AQI
4th July 2025
18AQI
5th July 2025
17AQI
6th July 2025
17AQI
7th July 2025
17AQI
8th July 2025
18AQI
9th July 2025
18AQI
10th July 2025
20AQI
11th July 2025
21AQI
12th July 2025
23AQI
13th July 2025
23AQI
14th July 2025
26AQI
15th July 2025
24AQI
16th July 2025
22AQI
17th July 2025
19AQI

41AQI

46AQI

45AQI

36AQI

28AQI

26AQI

20AQI


No. of days

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

202536AQI

22
9
January 2025
Good22Days

Moderate09Days
17
11
February 2025
Good17Days

Moderate11Days
19
12
March 2025
Good19Days

Moderate12Days
25
5
April 2025
Good25Days

Moderate05Days
31
May 2025
Good31Days
29
1
June 2025
Good29Days

Moderate01Day
17
July 2025
Good17Days
160
38
Total Days
Good160Days

Moderate38Days

Highest AQI recorded in

February

46AQI


Lowest AQI recorded in

July

20AQI


202432AQI

27
4
January 2024
Good27Days

Moderate04Days
21
3
2
1
February 2024
Good21Days

Moderate03Days

Poor02Days

Unhealthy01Day
26
3
1
March 2024
Good26Days

Moderate03Days

Poor01Day
28
2
April 2024
Good28Days

Moderate02Days
27
4
May 2024
Good27Days

Moderate04Days
27
3
June 2024
Good27Days

Moderate03Days
31
July 2024
Good31Days
26
5
August 2024
Good26Days

Moderate05Days
25
4
September 2024
Good25Days

Moderate04Days
30
1
October 2024
Good30Days

Moderate01Day
22
7
1
November 2024
Good22Days

Moderate07Days

Poor01Day
31
December 2024
Good31Days
321
36
4
1
Total Days
Good321Days

Moderate36Days

Poor04Days

Unhealthy01Day

Highest AQI recorded in

February

46AQI


Lowest AQI recorded in

July

21AQI


202341AQI

23
8
January 2023
Good23Days

Moderate08Days
18
10
February 2023
Good18Days

Moderate10Days
25
6
March 2023
Good25Days

Moderate06Days
15
14
April 2023
Good15Days

Moderate14Days
20
11
May 2023
Good20Days

Moderate11Days
16
14
June 2023
Good16Days

Moderate14Days
25
6
July 2023
Good25Days

Moderate06Days
26
5
August 2023
Good26Days

Moderate05Days
17
12
September 2023
Good17Days

Moderate12Days
15
14
October 2023
Good15Days

Moderate14Days
29
November 2023
Good29Days
29
2
December 2023
Good29Days

Moderate02Days
258
102
Total Days
Good258Days

Moderate102Days

Highest AQI recorded in

June

53AQI


Lowest AQI recorded in

November

24AQI


202245AQI

22
9
January 2022
Good22Days

Moderate09Days
15
6
February 2022
Good15Days

Moderate06Days
13
17
1
March 2022
Good13Days

Moderate17Days

Poor01Day
19
9
April 2022
Good19Days

Moderate09Days
28
3
May 2022
Good28Days

Moderate03Days
26
4
June 2022
Good26Days

Moderate04Days
20
4
July 2022
Good20Days

Moderate04Days
1
August 2022
Good01Day
8
4
September 2022
Good08Days

Moderate04Days
15
12
December 2022
Good15Days

Moderate12Days
167
68
1
Total Days
Good167Days

Moderate68Days

Poor01Day

Highest AQI recorded in

March

57AQI


Lowest AQI recorded in

August

27AQI


202135AQI

25
5
January 2021
Good25Days

Moderate05Days
23
5
February 2021
Good23Days

Moderate05Days
22
8
1
March 2021
Good22Days

Moderate08Days

Poor01Day
21
9
April 2021
Good21Days

Moderate09Days
28
2
May 2021
Good28Days

Moderate02Days
27
3
June 2021
Good27Days

Moderate03Days
26
5
July 2021
Good26Days

Moderate05Days
31
August 2021
Good31Days
27
3
September 2021
Good27Days

Moderate03Days
29
2
October 2021
Good29Days

Moderate02Days
30
November 2021
Good30Days
26
5
December 2021
Good26Days

Moderate05Days
315
47
1
Total Days
Good315Days

Moderate47Days

Poor01Day

Highest AQI recorded in

March

45AQI


Lowest AQI recorded in

January

27AQI


202021AQI

12
1
March 2020
Good12Days

Moderate01Day
20
April 2020
Good20Days
18
May 2020
Good18Days
30
June 2020
Good30Days
31
July 2020
Good31Days
26
1
August 2020
Good26Days

Moderate01Day
29
1
September 2020
Good29Days

Moderate01Day
28
October 2020
Good28Days
22
8
November 2020
Good22Days

Moderate08Days
30
1
December 2020
Good30Days

Moderate01Day
246
12
Total Days
Good246Days

Moderate12Days

Highest AQI recorded in

November

40AQI


Lowest AQI recorded in

July

12AQI


Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2022(Avg.)
45AQI
Least Polluted Year Recorded
2020(Avg.)
21AQI


Caerphilly's annual 2025 AQI (36) shows an average percentage change of 8.6% (worsened AQI) compared to previous years: 2020 (21), 2021 (35), 2022 (45), 2023 (41), 2024 (32).