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!
August Air Quality Analysis
Llangefni, Isle Of Anglesey, United Kingdom
AQI Trends: Highest and Lowest
Same Day Analysis (16th August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 2nd highest AQI at 36 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 16th Aug - 17th Aug 2026
Llangefni, Isle Of Anglesey, United Kingdom
5 AM16th Aug 2026
9 PM
4 AM17th Aug 2026
56AQI
23AQI
28AQI
17AQI
In the last 24 hours,
Llangefni's AQI reached its highest point of 56 at 3 PM during the Day, while the lowest point, 17, was recorded at 2 AM during the Night between 16th Aug and 17th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Llangefni, Isle Of Anglesey, United Kingdom
16°C12/19°C
15°C11/18°C
15°C11/18°C
15°C11/19°C
15°C12/18°C
15°C11/19°C
15°C14/17°C
16°C15/18°C
15°C13/18°C
18°C16/21°C
18°C15/21°C
16°C12/18°C
14°C11/18°C
14°C11/18°C
15°C11/20°C
18°C14/24°C
18°C16/21°C
15°C13/17°C
14°C11/17°C
15°C11/18°C
16°C12/20°C
16°C13/20°C
15°C11/18°C
18°C12/23°C
21°C16/27°C
21°C18/24°C
17°C14/20°C
15°C11/17°C
8°C-4/18°C
16°C15/19°C
34AQI
30AQI
33AQI
29AQI
2026 Days Vs Air Quality
Llangefni, Isle Of Anglesey, United Kingdom
93%
210
6%
14
0.4%
1
Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)
Under WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% of 229 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 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
14AQI (US)
12AQI (US)
11AQI (US)
13AQI (US)
14AQI (US)
32AQI (US)
18AQI (US)
28AQI (US)
16AQI (US)
34AQI (US)
24AQI (US)
20AQI (US)
18AQI (US)
18AQI (US)
28AQI (US)
28AQI (US)
21AQI (US)
41AQI (US)
30AQI (US)
24AQI (US)
10AQI (US)
32AQI (US)
46AQI (US)
47AQI (US)
44AQI (US)
72AQI (US)
40AQI (US)
20AQI (US)
46AQI (US)
48AQI (US)
20AQI (US)
36AQI (US)
43AQI (US)
60AQI (US)
44AQI (US)
38AQI (US)
14AQI (US)
24AQI (US)
32AQI (US)
38AQI (US)
38AQI (US)
38AQI (US)
30AQI (US)
38AQI (US)
34AQI (US)
29AQI (US)
34AQI (US)
40AQI (US)
33AQI (US)
30AQI (US)
36AQI (US)
27AQI (US)
28AQI (US)
36AQI (US)
30AQI (US)
34AQI (US)
16AQI (US)
23AQI (US)
21AQI (US)
24AQI (US)
39AQI (US)
48AQI (US)
41AQI (US)
80AQI (US)
28AQI (US)
30AQI (US)
58AQI (US)
54AQI (US)
17AQI (US)
28AQI (US)
35AQI (US)
32AQI (US)
32AQI (US)
30AQI (US)
27AQI (US)
39AQI (US)
44AQI (US)
40AQI (US)
71AQI (US)
90AQI (US)
102AQI (US)
40AQI (US)
14AQI (US)
26AQI (US)
22AQI (US)
24AQI (US)
30AQI (US)
23AQI (US)
44AQI (US)
18AQI (US)
22AQI (US)
20AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
38AQI (US)
36AQI (US)
24AQI (US)
30AQI (US)
28AQI (US)
28AQI (US)
24AQI (US)
26AQI (US)
36AQI (US)
26AQI (US)
24AQI (US)
24AQI (US)
22AQI (US)
28AQI (US)
21AQI (US)
28AQI (US)
32AQI (US)
38AQI (US)
22AQI (US)
19AQI (US)
26AQI (US)
26AQI (US)
42AQI (US)
24AQI (US)
22AQI (US)
26AQI (US)
24AQI (US)
22AQI (US)
22AQI (US)
19AQI (US)
16AQI (US)
20AQI (US)
21AQI (US)
18AQI (US)
28AQI (US)
35AQI (US)
38AQI (US)
33AQI (US)
33AQI (US)
32AQI (US)
34AQI (US)
30AQI (US)
38AQI (US)
48AQI (US)
34AQI (US)
32AQI (US)
25AQI (US)
25AQI (US)
22AQI (US)
20AQI (US)
24AQI (US)
24AQI (US)
20AQI (US)
19AQI (US)
19AQI (US)
20AQI (US)
20AQI (US)
20AQI (US)
20AQI (US)
17AQI (US)
19AQI (US)
20AQI (US)
20AQI (US)
20AQI (US)
20AQI (US)
21AQI (US)
23AQI (US)
18AQI (US)
22AQI (US)
20AQI (US)
18AQI (US)
17AQI (US)
20AQI (US)
22AQI (US)
22AQI (US)
40AQI (US)
52AQI (US)
28AQI (US)
14AQI (US)
21AQI (US)
20AQI (US)
20AQI (US)
19AQI (US)
23AQI (US)
16AQI (US)
12AQI (US)
14AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
76AQI (US)
54AQI (US)
57AQI (US)
51AQI (US)
50AQI (US)
58AQI (US)
30AQI (US)
29AQI (US)
34AQI (US)
30AQI (US)
26AQI (US)
32AQI (US)
32AQI (US)
26AQI (US)
32AQI (US)
30AQI (US)
30AQI (US)
31AQI (US)
34AQI (US)
34AQI (US)
34AQI (US)
24AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
31AQI (US)
30AQI (US)
38AQI (US)
30AQI (US)
35AQI (US)
38AQI (US)
61AQI (US)
26AQI (US)
20AQI (US)
36AQI (US)
28AQI (US)
33AQI (US)
40AQI (US)
27AQI (US)
28AQI (US)
22AQI (US)
32AQI (US)
32AQI (US)
No. of days
202630AQI (US)
Highest AQI (US) recorded in
March40AQI (US)
Lowest AQI (US) recorded in
June22AQI (US)
202530AQI (US)
Highest AQI (US) recorded in
February40AQI (US)
Lowest AQI (US) recorded in
September19AQI (US)
202430AQI (US)
Highest AQI (US) recorded in
November46AQI (US)
Lowest AQI (US) recorded in
April11AQI (US)
202333AQI (US)
Highest AQI (US) recorded in
November33AQI (US)
Lowest AQI (US) recorded in
December33AQI (US)
202230AQI (US)
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
May13AQI (US)
202126AQI (US)
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
July16AQI (US)
202028AQI (US)
Highest AQI (US) recorded in
April41AQI (US)
Lowest AQI (US) recorded in
July22AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Llangefni's annual 2026 AQI (US) (30) shows an average percentage change of 2.2% (worsened AQI (US)) compared to previous years: 2020 (28), 2021 (26), 2022 (30), 2023 (33), 2024 (30), 2025 (30).