Llangefni, Isle Of Anglesey, 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
Llangefni, Isle Of Anglesey, United Kingdom
2021
2022
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
12th Aug 2021
57AQILowest AQI recorded on
25th Aug 2021
8AQISame Day Analysis (2nd August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 2nd highest AQI at 22 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Llangefni, Isle Of Anglesey, United Kingdom
AQI
Day
Night
.
5 AM3rd Aug 2025
9 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
7PM3rd Aug
29AQI
Avg. Lowest Time
6AM3rd Aug
19AQI
In the last 24 hours,
Llangefni's AQI reached its highest point of 29 at 7 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Llangefni, Isle Of Anglesey, United Kingdom
JulAug
05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025215 AMAQI
5th Jul 2025156 AMAQI
5th Jul 2025167 AMAQI
5th Jul 2025168 AMAQI
5th Jul 2025169 AMAQI
5th Jul 20251610 AMAQI
5th Jul 20251611 AMAQI
5th Jul 20251812 PMAQI
5th Jul 2025201 PMAQI
5th Jul 2025182 PMAQI
5th Jul 2025193 PMAQI
5th Jul 2025184 PMAQI
5th Jul 2025215 PMAQI
5th Jul 2025206 PMAQI
5th Jul 2025207 PMAQI
5th Jul 2025208 PMAQI
5th Jul 2025209 PMAQI
5th Jul 20251910 PMAQI
5th Jul 20251911 PMAQI
6th Jul 20251812 AMAQI
6th Jul 2025181 AMAQI
6th Jul 2025192 AMAQI
6th Jul 2025203 AMAQI
6th Jul 2025224 AMAQI
15°C13/16°C
6th Jul 2025205 AMAQI
6th Jul 2025196 AMAQI
6th Jul 2025227 AMAQI
6th Jul 2025188 AMAQI
6th Jul 2025179 AMAQI
6th Jul 20251710 AMAQI
6th Jul 20251611 AMAQI
6th Jul 20251712 PMAQI
6th Jul 2025171 PMAQI
6th Jul 2025162 PMAQI
6th Jul 2025173 PMAQI
6th Jul 2025174 PMAQI
6th Jul 2025165 PMAQI
6th Jul 2025166 PMAQI
6th Jul 2025167 PMAQI
6th Jul 2025168 PMAQI
6th Jul 2025239 PMAQI
6th Jul 20251710 PMAQI
6th Jul 20251611 PMAQI
7th Jul 20251712 AMAQI
7th Jul 2025181 AMAQI
7th Jul 2025192 AMAQI
7th Jul 2025163 AMAQI
7th Jul 2025184 AMAQI
14°C13/17°C
7th Jul 2025185 AMAQI
7th Jul 2025166 AMAQI
7th Jul 2025197 AMAQI
7th Jul 2025238 AMAQI
7th Jul 2025189 AMAQI
7th Jul 20251810 AMAQI
7th Jul 20251911 AMAQI
7th Jul 20252012 PMAQI
7th Jul 2025171 PMAQI
7th Jul 2025182 PMAQI
7th Jul 2025203 PMAQI
7th Jul 2025184 PMAQI
7th Jul 2025185 PMAQI
7th Jul 2025196 PMAQI
7th Jul 2025187 PMAQI
7th Jul 2025178 PMAQI
7th Jul 2025189 PMAQI
7th Jul 20251810 PMAQI
7th Jul 20251811 PMAQI
8th Jul 20251812 AMAQI
8th Jul 2025181 AMAQI
8th Jul 2025202 AMAQI
8th Jul 2025183 AMAQI
8th Jul 2025184 AMAQI
14°C12/17°C
8th Jul 2025175 AMAQI
8th Jul 2025216 AMAQI
8th Jul 2025187 AMAQI
8th Jul 2025208 AMAQI
8th Jul 2025229 AMAQI
8th Jul 20252010 AMAQI
8th Jul 20252011 AMAQI
8th Jul 20252212 PMAQI
8th Jul 2025181 PMAQI
8th Jul 2025182 PMAQI
8th Jul 2025183 PMAQI
8th Jul 2025184 PMAQI
8th Jul 2025185 PMAQI
8th Jul 2025176 PMAQI
8th Jul 2025167 PMAQI
8th Jul 2025188 PMAQI
8th Jul 2025189 PMAQI
8th Jul 20252110 PMAQI
8th Jul 20251811 PMAQI
9th Jul 20251912 AMAQI
9th Jul 2025181 AMAQI
9th Jul 2025242 AMAQI
9th Jul 2025233 AMAQI
9th Jul 2025194 AMAQI
14°C10/16°C
9th Jul 2025225 AMAQI
9th Jul 2025206 AMAQI
9th Jul 2025207 AMAQI
9th Jul 2025228 AMAQI
9th Jul 2025249 AMAQI
9th Jul 20251910 AMAQI
9th Jul 20251811 AMAQI
9th Jul 20251812 PMAQI
9th Jul 2025201 PMAQI
9th Jul 2025202 PMAQI
9th Jul 2025193 PMAQI
9th Jul 2025194 PMAQI
9th Jul 2025195 PMAQI
9th Jul 2025206 PMAQI
9th Jul 2025197 PMAQI
9th Jul 2025198 PMAQI
9th Jul 2025189 PMAQI
9th Jul 20252010 PMAQI
9th Jul 20252011 PMAQI
10th Jul 20252112 AMAQI
10th Jul 2025201 AMAQI
10th Jul 2025232 AMAQI
10th Jul 2025233 AMAQI
10th Jul 2025214 AMAQI
16°C14/19°C
10th Jul 2025265 AMAQI
10th Jul 2025276 AMAQI
10th Jul 2025257 AMAQI
10th Jul 2025268 AMAQI
10th Jul 2025239 AMAQI
10th Jul 20252110 AMAQI
10th Jul 20252011 AMAQI
10th Jul 20252112 PMAQI
10th Jul 2025201 PMAQI
10th Jul 2025192 PMAQI
10th Jul 2025183 PMAQI
10th Jul 2025184 PMAQI
10th Jul 2025205 PMAQI
10th Jul 2025206 PMAQI
10th Jul 2025177 PMAQI
10th Jul 2025168 PMAQI
10th Jul 2025219 PMAQI
10th Jul 20252110 PMAQI
10th Jul 20251911 PMAQI
11th Jul 20251912 AMAQI
11th Jul 2025191 AMAQI
11th Jul 2025202 AMAQI
11th Jul 2025233 AMAQI
11th Jul 2025204 AMAQI
17°C14/20°C
11th Jul 2025245 AMAQI
11th Jul 2025236 AMAQI
11th Jul 2025247 AMAQI
11th Jul 2025238 AMAQI
11th Jul 2025249 AMAQI
11th Jul 20252310 AMAQI
11th Jul 20252311 AMAQI
11th Jul 20252212 PMAQI
11th Jul 2025181 PMAQI
11th Jul 2025192 PMAQI
11th Jul 2025183 PMAQI
11th Jul 2025184 PMAQI
11th Jul 2025175 PMAQI
11th Jul 2025166 PMAQI
11th Jul 2025147 PMAQI
11th Jul 2025158 PMAQI
11th Jul 2025189 PMAQI
11th Jul 20251910 PMAQI
11th Jul 20251811 PMAQI
12th Jul 20251912 AMAQI
12th Jul 2025191 AMAQI
12th Jul 2025172 AMAQI
12th Jul 2025213 AMAQI
12th Jul 2025194 AMAQI
18°C13/22°C
12th Jul 2025175 AMAQI
12th Jul 2025176 AMAQI
12th Jul 2025217 AMAQI
12th Jul 2025218 AMAQI
12th Jul 2025209 AMAQI
12th Jul 20252310 AMAQI
12th Jul 20252711 AMAQI
12th Jul 20252212 PMAQI
12th Jul 2025171 PMAQI
12th Jul 2025172 PMAQI
12th Jul 2025193 PMAQI
12th Jul 2025174 PMAQI
12th Jul 2025185 PMAQI
12th Jul 2025186 PMAQI
12th Jul 2025187 PMAQI
12th Jul 2025168 PMAQI
12th Jul 2025189 PMAQI
12th Jul 20251810 PMAQI
12th Jul 20251811 PMAQI
13th Jul 20251812 AMAQI
13th Jul 2025191 AMAQI
13th Jul 2025332 AMAQI
13th Jul 2025293 AMAQI
13th Jul 2025264 AMAQI
21°C17/26°C
13th Jul 2025235 AMAQI
13th Jul 2025246 AMAQI
13th Jul 2025227 AMAQI
13th Jul 2025238 AMAQI
13th Jul 2025239 AMAQI
13th Jul 20252610 AMAQI
13th Jul 20252411 AMAQI
13th Jul 20252212 PMAQI
13th Jul 2025241 PMAQI
13th Jul 2025282 PMAQI
13th Jul 2025293 PMAQI
13th Jul 2025244 PMAQI
13th Jul 2025245 PMAQI
13th Jul 2025246 PMAQI
13th Jul 2025247 PMAQI
13th Jul 2025278 PMAQI
13th Jul 2025249 PMAQI
13th Jul 20252510 PMAQI
13th Jul 20252611 PMAQI
14th Jul 20252712 AMAQI
14th Jul 2025241 AMAQI
14th Jul 2025222 AMAQI
14th Jul 2025523 AMAQI
14th Jul 2025484 AMAQI
20°C16/23°C
14th Jul 2025265 AMAQI
14th Jul 2025256 AMAQI
14th Jul 2025237 AMAQI
14th Jul 2025238 AMAQI
14th Jul 2025229 AMAQI
14th Jul 20252210 AMAQI
14th Jul 20252311 AMAQI
14th Jul 20252112 PMAQI
14th Jul 2025211 PMAQI
14th Jul 2025212 PMAQI
14th Jul 2025183 PMAQI
14th Jul 2025194 PMAQI
14th Jul 2025195 PMAQI
14th Jul 2025186 PMAQI
14th Jul 2025197 PMAQI
14th Jul 2025188 PMAQI
14th Jul 2025189 PMAQI
14th Jul 20251910 PMAQI
14th Jul 20251811 PMAQI
15th Jul 20251912 AMAQI
15th Jul 2025191 AMAQI
15th Jul 2025172 AMAQI
15th Jul 2025163 AMAQI
15th Jul 2025184 AMAQI
16°C13/17°C
15th Jul 2025165 AMAQI
15th Jul 2025176 AMAQI
15th Jul 2025187 AMAQI
15th Jul 2025248 AMAQI
15th Jul 2025189 AMAQI
15th Jul 20251910 AMAQI
15th Jul 20251811 AMAQI
15th Jul 20251812 PMAQI
15th Jul 2025171 PMAQI
15th Jul 2025212 PMAQI
15th Jul 2025183 PMAQI
15th Jul 2025174 PMAQI
15th Jul 2025175 PMAQI
15th Jul 2025186 PMAQI
15th Jul 2025197 PMAQI
15th Jul 2025198 PMAQI
15th Jul 2025219 PMAQI
15th Jul 20252210 PMAQI
15th Jul 20252211 PMAQI
16th Jul 20252812 AMAQI
16th Jul 2025301 AMAQI
16th Jul 2025322 AMAQI
16th Jul 2025353 AMAQI
16th Jul 2025324 AMAQI
14°C13/16°C
16th Jul 2025365 AMAQI
16th Jul 2025346 AMAQI
16th Jul 2025347 AMAQI
16th Jul 2025348 AMAQI
16th Jul 2025369 AMAQI
16th Jul 20253310 AMAQI
16th Jul 20253111 AMAQI
16th Jul 20253012 PMAQI
16th Jul 2025281 PMAQI
16th Jul 2025292 PMAQI
16th Jul 2025253 PMAQI
16th Jul 2025234 PMAQI
16th Jul 2025215 PMAQI
16th Jul 2025206 PMAQI
16th Jul 2025227 PMAQI
16th Jul 2025228 PMAQI
16th Jul 2025229 PMAQI
16th Jul 20252610 PMAQI
16th Jul 20252611 PMAQI
17th Jul 20252412 AMAQI
17th Jul 2025231 AMAQI
17th Jul 2025242 AMAQI
17th Jul 2025243 AMAQI
17th Jul 2025224 AMAQI
15°C12/18°C
17th Jul 2025225 AMAQI
17th Jul 2025226 AMAQI
17th Jul 2025207 AMAQI
17th Jul 2025218 AMAQI
17th Jul 2025239 AMAQI
17th Jul 20252310 AMAQI
17th Jul 20251911 AMAQI
17th Jul 20251712 PMAQI
17th Jul 2025181 PMAQI
17th Jul 2025182 PMAQI
17th Jul 2025193 PMAQI
17th Jul 2025194 PMAQI
17th Jul 2025185 PMAQI
17th Jul 2025186 PMAQI
17th Jul 2025177 PMAQI
17th Jul 2025148 PMAQI
17th Jul 2025159 PMAQI
17th Jul 20251710 PMAQI
17th Jul 20251711 PMAQI
18th Jul 20251912 AMAQI
18th Jul 2025201 AMAQI
18th Jul 2025202 AMAQI
18th Jul 2025243 AMAQI
18th Jul 2025254 AMAQI
17°C14/19°C
18th Jul 2025235 AMAQI
18th Jul 2025236 AMAQI
18th Jul 2025187 AMAQI
18th Jul 2025178 AMAQI
18th Jul 2025169 AMAQI
18th Jul 20251610 AMAQI
18th Jul 20251611 AMAQI
18th Jul 20251712 PMAQI
18th Jul 2025171 PMAQI
18th Jul 2025182 PMAQI
18th Jul 2025193 PMAQI
18th Jul 2025184 PMAQI
18th Jul 2025185 PMAQI
18th Jul 2025186 PMAQI
18th Jul 2025207 PMAQI
18th Jul 2025188 PMAQI
18th Jul 2025199 PMAQI
18th Jul 20251810 PMAQI
18th Jul 20251811 PMAQI
19th Jul 20251712 AMAQI
19th Jul 2025191 AMAQI
19th Jul 2025192 AMAQI
19th Jul 2025183 AMAQI
19th Jul 2025224 AMAQI
17°C14/19°C
19th Jul 2025215 AMAQI
19th Jul 2025206 AMAQI
19th Jul 2025207 AMAQI
19th Jul 2025248 AMAQI
19th Jul 2025219 AMAQI
19th Jul 20251810 AMAQI
19th Jul 20251611 AMAQI
19th Jul 20251712 PMAQI
19th Jul 2025181 PMAQI
19th Jul 2025172 PMAQI
19th Jul 2025173 PMAQI
19th Jul 2025184 PMAQI
19th Jul 2025175 PMAQI
19th Jul 2025186 PMAQI
19th Jul 2025187 PMAQI
19th Jul 2025198 PMAQI
19th Jul 2025209 PMAQI
19th Jul 20251910 PMAQI
19th Jul 20251811 PMAQI
20th Jul 20251912 AMAQI
20th Jul 2025191 AMAQI
20th Jul 2025202 AMAQI
20th Jul 2025233 AMAQI
20th Jul 2025294 AMAQI
16°C13/19°C
20th Jul 2025305 AMAQI
20th Jul 2025326 AMAQI
20th Jul 2025267 AMAQI
20th Jul 2025258 AMAQI
20th Jul 2025259 AMAQI
20th Jul 20251710 AMAQI
20th Jul 20251511 AMAQI
20th Jul 20251412 PMAQI
20th Jul 2025191 PMAQI
20th Jul 2025162 PMAQI
20th Jul 2025163 PMAQI
20th Jul 2025164 PMAQI
20th Jul 2025165 PMAQI
20th Jul 2025136 PMAQI
20th Jul 2025147 PMAQI
20th Jul 2025148 PMAQI
20th Jul 2025169 PMAQI
20th Jul 20251610 PMAQI
20th Jul 20251711 PMAQI
21st Jul 20251712 AMAQI
21st Jul 2025171 AMAQI
21st Jul 2025162 AMAQI
21st Jul 2025173 AMAQI
21st Jul 2025174 AMAQI
16°C14/19°C
21st Jul 2025185 AMAQI
21st Jul 2025196 AMAQI
21st Jul 2025187 AMAQI
21st Jul 2025178 AMAQI
21st Jul 2025169 AMAQI
21st Jul 20251510 AMAQI
21st Jul 20251411 AMAQI
21st Jul 20251612 PMAQI
21st Jul 2025141 PMAQI
21st Jul 2025122 PMAQI
21st Jul 2025143 PMAQI
21st Jul 2025184 PMAQI
21st Jul 2025185 PMAQI
21st Jul 2025186 PMAQI
21st Jul 2025177 PMAQI
21st Jul 2025178 PMAQI
21st Jul 2025189 PMAQI
21st Jul 20251910 PMAQI
21st Jul 20251811 PMAQI
22nd Jul 20251812 AMAQI
22nd Jul 2025171 AMAQI
22nd Jul 2025152 AMAQI
22nd Jul 2025163 AMAQI
22nd Jul 2025144 AMAQI
15°C13/18°C
22nd Jul 2025155 AMAQI
22nd Jul 2025156 AMAQI
22nd Jul 2025147 AMAQI
22nd Jul 2025148 AMAQI
22nd Jul 2025149 AMAQI
22nd Jul 20251210 AMAQI
22nd Jul 20251311 AMAQI
22nd Jul 20251312 PMAQI
22nd Jul 2025141 PMAQI
22nd Jul 2025152 PMAQI
22nd Jul 2025163 PMAQI
22nd Jul 2025164 PMAQI
22nd Jul 2025145 PMAQI
22nd Jul 2025146 PMAQI
22nd Jul 2025117 PMAQI
22nd Jul 2025128 PMAQI
22nd Jul 2025169 PMAQI
22nd Jul 20251410 PMAQI
22nd Jul 20251511 PMAQI
23rd Jul 20251812 AMAQI
23rd Jul 2025201 AMAQI
23rd Jul 2025202 AMAQI
23rd Jul 2025213 AMAQI
23rd Jul 2025264 AMAQI
15°C14/17°C
23rd Jul 2025375 AMAQI
23rd Jul 2025516 AMAQI
23rd Jul 2025597 AMAQI
23rd Jul 2025598 AMAQI
23rd Jul 2025629 AMAQI
23rd Jul 20256010 AMAQI
23rd Jul 20255911 AMAQI
23rd Jul 20255512 PMAQI
23rd Jul 2025481 PMAQI
23rd Jul 2025472 PMAQI
23rd Jul 2025463 PMAQI
23rd Jul 2025464 PMAQI
23rd Jul 2025465 PMAQI
23rd Jul 2025546 PMAQI
23rd Jul 2025537 PMAQI
23rd Jul 2025388 PMAQI
23rd Jul 2025399 PMAQI
23rd Jul 20254210 PMAQI
23rd Jul 20254111 PMAQI
24th Jul 20254212 AMAQI
24th Jul 2025491 AMAQI
24th Jul 2025562 AMAQI
24th Jul 2025573 AMAQI
24th Jul 2025624 AMAQI
15°C13/17°C
24th Jul 2025595 AMAQI
24th Jul 2025586 AMAQI
24th Jul 2025607 AMAQI
24th Jul 2025688 AMAQI
24th Jul 2025689 AMAQI
24th Jul 20256610 AMAQI
24th Jul 20256211 AMAQI
24th Jul 20255912 PMAQI
24th Jul 2025581 PMAQI
24th Jul 2025592 PMAQI
24th Jul 2025583 PMAQI
24th Jul 2025584 PMAQI
24th Jul 2025585 PMAQI
24th Jul 2025566 PMAQI
24th Jul 2025577 PMAQI
24th Jul 2025598 PMAQI
24th Jul 2025569 PMAQI
24th Jul 20255710 PMAQI
24th Jul 20255611 PMAQI
25th Jul 20255612 AMAQI
25th Jul 2025561 AMAQI
25th Jul 2025602 AMAQI
25th Jul 2025603 AMAQI
25th Jul 2025584 AMAQI
15°C12/18°C
25th Jul 2025585 AMAQI
25th Jul 2025556 AMAQI
25th Jul 2025587 AMAQI
25th Jul 2025578 AMAQI
25th Jul 2025559 AMAQI
25th Jul 20255610 AMAQI
25th Jul 20255611 AMAQI
25th Jul 20255612 PMAQI
25th Jul 2025601 PMAQI
25th Jul 2025602 PMAQI
25th Jul 2025593 PMAQI
25th Jul 2025594 PMAQI
25th Jul 2025565 PMAQI
25th Jul 2025546 PMAQI
25th Jul 2025537 PMAQI
25th Jul 2025538 PMAQI
25th Jul 2025549 PMAQI
25th Jul 20255510 PMAQI
25th Jul 20255411 PMAQI
26th Jul 20255412 AMAQI
26th Jul 2025421 AMAQI
26th Jul 2025342 AMAQI
26th Jul 2025363 AMAQI
26th Jul 2025274 AMAQI
16°C12/19°C
26th Jul 2025355 AMAQI
26th Jul 2025326 AMAQI
26th Jul 2025287 AMAQI
26th Jul 2025238 AMAQI
26th Jul 2025169 AMAQI
26th Jul 20251310 AMAQI
26th Jul 20251511 AMAQI
26th Jul 20251812 PMAQI
26th Jul 2025251 PMAQI
26th Jul 2025222 PMAQI
26th Jul 2025243 PMAQI
26th Jul 2025314 PMAQI
26th Jul 2025305 PMAQI
26th Jul 2025336 PMAQI
26th Jul 2025467 PMAQI
26th Jul 2025338 PMAQI
26th Jul 2025339 PMAQI
26th Jul 20253210 PMAQI
26th Jul 20253011 PMAQI
27th Jul 20252412 AMAQI
27th Jul 2025281 AMAQI
27th Jul 2025242 AMAQI
27th Jul 2025253 AMAQI
27th Jul 2025204 AMAQI
16°C14/18°C
27th Jul 2025225 AMAQI
27th Jul 2025226 AMAQI
27th Jul 2025247 AMAQI
27th Jul 2025258 AMAQI
27th Jul 2025259 AMAQI
27th Jul 20252610 AMAQI
27th Jul 20252211 AMAQI
27th Jul 20251712 PMAQI
27th Jul 2025201 PMAQI
27th Jul 2025212 PMAQI
27th Jul 2025223 PMAQI
27th Jul 2025234 PMAQI
27th Jul 2025245 PMAQI
27th Jul 2025266 PMAQI
27th Jul 2025267 PMAQI
27th Jul 2025288 PMAQI
27th Jul 2025309 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253411 PMAQI
28th Jul 20253312 AMAQI
28th Jul 2025291 AMAQI
28th Jul 2025262 AMAQI
28th Jul 2025263 AMAQI
28th Jul 2025264 AMAQI
15°C13/17°C
28th Jul 2025235 AMAQI
28th Jul 2025256 AMAQI
28th Jul 2025247 AMAQI
28th Jul 2025248 AMAQI
28th Jul 2025229 AMAQI
28th Jul 20252010 AMAQI
28th Jul 20252111 AMAQI
28th Jul 20252012 PMAQI
28th Jul 2025211 PMAQI
28th Jul 2025202 PMAQI
28th Jul 2025183 PMAQI
28th Jul 2025184 PMAQI
28th Jul 2025185 PMAQI
28th Jul 2025186 PMAQI
28th Jul 2025187 PMAQI
28th Jul 2025198 PMAQI
28th Jul 2025209 PMAQI
28th Jul 20251910 PMAQI
28th Jul 20251811 PMAQI
29th Jul 20251612 AMAQI
29th Jul 2025181 AMAQI
29th Jul 2025172 AMAQI
29th Jul 2025143 AMAQI
29th Jul 2025164 AMAQI
15°C13/17°C
29th Jul 2025165 AMAQI
29th Jul 2025166 AMAQI
29th Jul 2025157 AMAQI
29th Jul 2025178 AMAQI
29th Jul 2025179 AMAQI
29th Jul 20251510 AMAQI
29th Jul 20251711 AMAQI
29th Jul 20251612 PMAQI
29th Jul 2025171 PMAQI
29th Jul 2025172 PMAQI
29th Jul 2025173 PMAQI
29th Jul 2025174 PMAQI
29th Jul 2025175 PMAQI
29th Jul 2025176 PMAQI
29th Jul 2025177 PMAQI
29th Jul 2025178 PMAQI
29th Jul 2025189 PMAQI
29th Jul 20251810 PMAQI
29th Jul 20251811 PMAQI
30th Jul 20251812 AMAQI
30th Jul 2025171 AMAQI
30th Jul 2025182 AMAQI
30th Jul 2025183 AMAQI
30th Jul 2025174 AMAQI
16°C15/17°C
30th Jul 2025155 AMAQI
30th Jul 2025176 AMAQI
30th Jul 2025157 AMAQI
30th Jul 2025148 AMAQI
30th Jul 2025149 AMAQI
30th Jul 20251410 AMAQI
30th Jul 20251411 AMAQI
30th Jul 20251412 PMAQI
30th Jul 2025151 PMAQI
30th Jul 2025152 PMAQI
30th Jul 2025163 PMAQI
30th Jul 2025164 PMAQI
30th Jul 2025155 PMAQI
30th Jul 2025166 PMAQI
30th Jul 2025177 PMAQI
30th Jul 2025408 PMAQI
30th Jul 2025469 PMAQI
30th Jul 20254610 PMAQI
30th Jul 20254611 PMAQI
31st Jul 20254612 AMAQI
31st Jul 2025461 AMAQI
31st Jul 2025462 AMAQI
31st Jul 2025223 AMAQI
31st Jul 2025144 AMAQI
16°C15/18°C
31st Jul 2025155 AMAQI
31st Jul 2025166 AMAQI
31st Jul 2025167 AMAQI
31st Jul 2025178 AMAQI
31st Jul 2025169 AMAQI
31st Jul 20252010 AMAQI
31st Jul 20252311 AMAQI
31st Jul 20252112 PMAQI
31st Jul 2025181 PMAQI
31st Jul 2025182 PMAQI
31st Jul 2025193 PMAQI
31st Jul 2025184 PMAQI
31st Jul 2025175 PMAQI
31st Jul 2025186 PMAQI
31st Jul 2025177 PMAQI
31st Jul 2025208 PMAQI
31st Jul 2025219 PMAQI
31st Jul 20252010 PMAQI
31st Jul 20251911 PMAQI
1st Aug 20252012 AMAQI
1st Aug 2025221 AMAQI
1st Aug 2025242 AMAQI
1st Aug 2025223 AMAQI
1st Aug 2025194 AMAQI
15°C12/18°C
1st Aug 2025185 AMAQI
1st Aug 2025196 AMAQI
1st Aug 2025217 AMAQI
1st Aug 2025198 AMAQI
1st Aug 2025209 AMAQI
1st Aug 20251910 AMAQI
1st Aug 20251811 AMAQI
1st Aug 20251812 PMAQI
1st Aug 2025191 PMAQI
1st Aug 2025192 PMAQI
1st Aug 2025203 PMAQI
1st Aug 2025184 PMAQI
1st Aug 2025185 PMAQI
1st Aug 2025186 PMAQI
1st Aug 2025197 PMAQI
1st Aug 2025208 PMAQI
1st Aug 2025219 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252412 AMAQI
2nd Aug 2025241 AMAQI
2nd Aug 2025192 AMAQI
2nd Aug 2025203 AMAQI
2nd Aug 2025224 AMAQI
14°C11/17°C
2nd Aug 2025225 AMAQI
2nd Aug 2025216 AMAQI
2nd Aug 2025197 AMAQI
2nd Aug 2025198 AMAQI
2nd Aug 2025259 AMAQI
2nd Aug 20252010 AMAQI
2nd Aug 20251911 AMAQI
2nd Aug 20252012 PMAQI
2nd Aug 2025221 PMAQI
2nd Aug 2025222 PMAQI
2nd Aug 2025243 PMAQI
2nd Aug 2025224 PMAQI
2nd Aug 2025225 PMAQI
2nd Aug 2025256 PMAQI
2nd Aug 2025227 PMAQI
2nd Aug 2025228 PMAQI
2nd Aug 2025239 PMAQI
2nd Aug 20252410 PMAQI
2nd Aug 20252211 PMAQI
3rd Aug 20252212 AMAQI
3rd Aug 2025211 AMAQI
3rd Aug 2025202 AMAQI
3rd Aug 2025233 AMAQI
3rd Aug 2025204 AMAQI
14°C11/17°C
3rd Aug 2025225 AMAQI
3rd Aug 2025196 AMAQI
3rd Aug 2025207 AMAQI
3rd Aug 2025208 AMAQI
3rd Aug 2025209 AMAQI
3rd Aug 20252010 AMAQI
3rd Aug 20252011 AMAQI
3rd Aug 20252412 PMAQI
3rd Aug 2025211 PMAQI
3rd Aug 2025212 PMAQI
3rd Aug 2025203 PMAQI
3rd Aug 2025214 PMAQI
3rd Aug 2025245 PMAQI
3rd Aug 2025236 PMAQI
3rd Aug 2025297 PMAQI
3rd Aug 2025268 PMAQI
3rd Aug 2025229 PMAQI
3rd Aug 20252310 PMAQI
3rd Aug 20252211 PMAQI
4th Aug 20252212 AMAQI
--°C/°C
5 AM
1 PM
9 PM
1 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 9 PM
24AQI
17 hours / Day
510 hours / Month
Avg. Lowest Time
5 AM - 9 PM
24AQI
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. 24), while the lowest AQI was between 5 AM to 9 PM (Avg. 24).
Night time
Avg. Highest Time
12 AM - 11 PM
25AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
12 AM - 11 PM
25AQI
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. 25), while the lowest AQI was between 12 AM to 11 PM (Avg. 25).
2025 Days Vs Air Quality
Llangefni, Isle Of Anglesey, United Kingdom
2025
91%
195
9%
19
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
195 DaysModerate
19 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 215 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
Llangefni, Isle Of Anglesey, 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
41AQI
41AQI
2nd January 2025
33AQI
33AQI
3rd January 2025
38AQI
38AQI
4th January 2025
45AQI
45AQI
5th January 2025
36AQI
36AQI
6th January 2025
30AQI
30AQI
7th January 2025
25AQI
25AQI
8th January 2025
33AQI
33AQI
9th January 2025
40AQI
40AQI
10th January 2025
42AQI
42AQI
11th January 2025
42AQI
42AQI
12th January 2025
47AQI
47AQI
13th January 2025
38AQI
38AQI
14th January 2025
34AQI
34AQI
15th January 2025
35AQI
35AQI
16th January 2025
36AQI
36AQI
17th January 2025
32AQI
32AQI
18th January 2025
40AQI
40AQI
19th January 2025
47AQI
47AQI
20th January 2025
49AQI
49AQI
21st January 2025
43AQI
43AQI
22nd January 2025
45AQI
45AQI
23rd January 2025
36AQI
36AQI
24th January 2025
36AQI
36AQI
25th January 2025
31AQI
31AQI
26th January 2025
27AQI
27AQI
27th January 2025
29AQI
29AQI
28th January 2025
28AQI
28AQI
29th January 2025
25AQI
25AQI
30th January 2025
25AQI
25AQI
31st January 2025
29AQI
29AQI
1st February 2025
30AQI
30AQI
2nd February 2025
26AQI
26AQI
3rd February 2025
28AQI
28AQI
4th February 2025
27AQI
27AQI
5th February 2025
28AQI
28AQI
6th February 2025
38AQI
38AQI
7th February 2025
35AQI
35AQI
8th February 2025
37AQI
37AQI
9th February 2025
41AQI
41AQI
10th February 2025
42AQI
42AQI
11th February 2025
42AQI
42AQI
12th February 2025
43AQI
43AQI
13th February 2025
51AQI
51AQI
14th February 2025
53AQI
53AQI
15th February 2025
53AQI
53AQI
16th February 2025
58AQI
58AQI
17th February 2025
60AQI
60AQI
18th February 2025
61AQI
61AQI
19th February 2025
59AQI
59AQI
20th February 2025
47AQI
47AQI
21st February 2025
39AQI
39AQI
22nd February 2025
36AQI
36AQI
23rd February 2025
32AQI
32AQI
24th February 2025
31AQI
31AQI
25th February 2025
30AQI
30AQI
26th February 2025
28AQI
28AQI
27th February 2025
27AQI
27AQI
28th February 2025
28AQI
28AQI
1st March 2025
29AQI
29AQI
2nd March 2025
32AQI
32AQI
3rd March 2025
30AQI
30AQI
4th March 2025
34AQI
34AQI
5th March 2025
38AQI
38AQI
6th March 2025
47AQI
47AQI
7th March 2025
42AQI
42AQI
8th March 2025
44AQI
44AQI
9th March 2025
57AQI
57AQI
10th March 2025
63AQI
63AQI
11th March 2025
54AQI
54AQI
12th March 2025
41AQI
41AQI
13th March 2025
32AQI
32AQI
14th March 2025
32AQI
32AQI
15th March 2025
30AQI
30AQI
16th March 2025
28AQI
28AQI
17th March 2025
26AQI
26AQI
18th March 2025
35AQI
35AQI
19th March 2025
51AQI
51AQI
20th March 2025
56AQI
56AQI
21st March 2025
58AQI
58AQI
22nd March 2025
54AQI
54AQI
23rd March 2025
51AQI
51AQI
24th March 2025
50AQI
50AQI
25th March 2025
41AQI
41AQI
26th March 2025
33AQI
33AQI
27th March 2025
29AQI
29AQI
28th March 2025
27AQI
27AQI
29th March 2025
26AQI
26AQI
30th March 2025
36AQI
36AQI
31st March 2025
35AQI
35AQI
1st April 2025
35AQI
35AQI
2nd April 2025
34AQI
34AQI
3rd April 2025
42AQI
42AQI
4th April 2025
51AQI
51AQI
5th April 2025
47AQI
47AQI
6th April 2025
38AQI
38AQI
7th April 2025
35AQI
35AQI
8th April 2025
39AQI
39AQI
9th April 2025
43AQI
43AQI
10th April 2025
43AQI
43AQI
11th April 2025
48AQI
48AQI
12th April 2025
48AQI
48AQI
13th April 2025
37AQI
37AQI
14th April 2025
21AQI
21AQI
15th April 2025
16AQI
16AQI
16th April 2025
15AQI
15AQI
17th April 2025
17AQI
17AQI
18th April 2025
17AQI
17AQI
19th April 2025
17AQI
17AQI
20th April 2025
21AQI
21AQI
21st April 2025
23AQI
23AQI
22nd April 2025
18AQI
18AQI
23rd April 2025
21AQI
21AQI
24th April 2025
26AQI
26AQI
25th April 2025
32AQI
32AQI
26th April 2025
36AQI
36AQI
27th April 2025
29AQI
29AQI
28th April 2025
25AQI
25AQI
29th April 2025
29AQI
29AQI
30th April 2025
38AQI
38AQI
1st May 2025
39AQI
39AQI
2nd May 2025
30AQI
30AQI
3rd May 2025
28AQI
28AQI
4th May 2025
24AQI
24AQI
5th May 2025
20AQI
20AQI
6th May 2025
19AQI
19AQI
7th May 2025
19AQI
19AQI
8th May 2025
20AQI
20AQI
9th May 2025
21AQI
21AQI
10th May 2025
25AQI
25AQI
11th May 2025
26AQI
26AQI
12th May 2025
29AQI
29AQI
13th May 2025
29AQI
29AQI
14th May 2025
27AQI
27AQI
15th May 2025
26AQI
26AQI
16th May 2025
23AQI
23AQI
17th May 2025
24AQI
24AQI
18th May 2025
26AQI
26AQI
19th May 2025
29AQI
29AQI
20th May 2025
28AQI
28AQI
21st May 2025
26AQI
26AQI
22nd May 2025
26AQI
26AQI
23rd May 2025
24AQI
24AQI
24th May 2025
24AQI
24AQI
25th May 2025
21AQI
21AQI
26th May 2025
22AQI
22AQI
27th May 2025
20AQI
20AQI
28th May 2025
19AQI
19AQI
29th May 2025
21AQI
21AQI
30th May 2025
21AQI
21AQI
31st May 2025
20AQI
20AQI
1st June 2025
22AQI
22AQI
2nd June 2025
22AQI
22AQI
3rd June 2025
27AQI
27AQI
4th June 2025
26AQI
26AQI
5th June 2025
22AQI
22AQI
6th June 2025
20AQI
20AQI
7th June 2025
19AQI
19AQI
8th June 2025
24AQI
24AQI
9th June 2025
51AQI
51AQI
10th June 2025
43AQI
43AQI
11th June 2025
36AQI
36AQI
12th June 2025
37AQI
37AQI
13th June 2025
33AQI
33AQI
14th June 2025
30AQI
30AQI
15th June 2025
28AQI
28AQI
16th June 2025
27AQI
27AQI
17th June 2025
31AQI
31AQI
18th June 2025
27AQI
27AQI
19th June 2025
26AQI
26AQI
20th June 2025
29AQI
29AQI
21st June 2025
31AQI
31AQI
22nd June 2025
32AQI
32AQI
23rd June 2025
24AQI
24AQI
24th June 2025
21AQI
21AQI
25th June 2025
18AQI
18AQI
26th June 2025
16AQI
16AQI
27th June 2025
21AQI
21AQI
28th June 2025
21AQI
21AQI
29th June 2025
23AQI
23AQI
30th June 2025
21AQI
21AQI
1st July 2025
21AQI
21AQI
2nd July 2025
18AQI
18AQI
3rd July 2025
17AQI
17AQI
4th July 2025
19AQI
19AQI
5th July 2025
19AQI
19AQI
6th July 2025
18AQI
18AQI
7th July 2025
18AQI
18AQI
8th July 2025
19AQI
19AQI
9th July 2025
20AQI
20AQI
10th July 2025
21AQI
21AQI
11th July 2025
20AQI
20AQI
12th July 2025
19AQI
19AQI
13th July 2025
25AQI
25AQI
14th July 2025
24AQI
24AQI
15th July 2025
19AQI
19AQI
16th July 2025
28AQI
28AQI
17th July 2025
20AQI
20AQI
18th July 2025
19AQI
19AQI
19th July 2025
19AQI
19AQI
20th July 2025
19AQI
19AQI
21st July 2025
17AQI
17AQI
22nd July 2025
14AQI
14AQI
23rd July 2025
43AQI
43AQI
24th July 2025
58AQI
58AQI
25th July 2025
56AQI
56AQI
26th July 2025
31AQI
31AQI
27th July 2025
25AQI
25AQI
28th July 2025
22AQI
22AQI
29th July 2025
17AQI
17AQI
30th July 2025
21AQI
21AQI
31st July 2025
22AQI
22AQI
1st August 2025
20AQI
20AQI
2nd August 2025
22AQI
22AQI
36AQI
40AQI
40AQI
31AQI
24AQI
27AQI
23AQI
21AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202532AQI
31
21
7
23
8
29
1
31
29
1
29
2
2
195
19
Highest AQI recorded in
March40AQI
Lowest AQI recorded in
August21AQI
202430AQI
16
1
4
2
12
30
31
31
21
8
31
20
10
31
230
18
Highest AQI recorded in
November46AQI
Lowest AQI recorded in
April11AQI
202333AQI
3
26
5
29
5
Highest AQI recorded in
November33AQI
Lowest AQI recorded in
December33AQI
202230AQI
28
3
14
8
21
1
21
1
1
28
2
19
1
1
28
16
6
7
4
23
4
207
30
Highest AQI recorded in
February43AQI
Lowest AQI recorded in
May13AQI
202126AQI
25
15
9
1
18
13
28
1
28
3
30
31
29
2
29
1
29
2
28
2
27
4
317
37
1
Highest AQI recorded in
March46AQI
Lowest AQI recorded in
January16AQI
202028AQI
13
16
5
14
3
28
2
31
24
2
30
24
1
28
1
28
3
236
17
Highest AQI recorded in
April41AQI
Lowest AQI recorded in
July22AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
33AQILeast Polluted Year Recorded
2021(Avg.)
26AQILlangefni's annual 2025 AQI (32) shows an average percentage change of 8.4% (worsened AQI) compared to previous years: 2020 (28), 2021 (26), 2022 (30), 2023 (33), 2024 (30).
