Leicester, Leicester, 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
Leicester, Leicester, United Kingdom
AQI Trends: Highest and Lowest
Same Day Analysis (29th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 21 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Aug - 30th Aug 2025
Leicester, Leicester, United Kingdom
5 AM29th Aug 2025
8 PM
4 AM30th Aug 2025
24AQI
18AQI
23AQI
18AQI
In the last 24 hours,
Leicester's AQI reached its highest point of 24 at 8 AM during the Day, while the lowest point, 18, was recorded at 3 AM during the Night between 29th Aug and 30th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Leicester, Leicester, United Kingdom
18°C13/23°C
15°C11/19°C
16°C11/22°C
17°C11/22°C
17°C14/21°C
15°C11/20°C
17°C10/23°C
17°C13/21°C
18°C12/25°C
18°C12/24°C
19°C12/26°C
23°C16/29°C
23°C17/31°C
25°C17/32°C
21°C16/25°C
21°C15/28°C
18°C13/25°C
18°C11/26°C
18°C14/23°C
17°C13/20°C
16°C11/21°C
15°C10/20°C
15°C9/23°C
17°C12/21°C
19°C16/24°C
21°C13/28°C
19°C15/25°C
17°C12/22°C
15°C11/21°C
16°C11/21°C
--°C/°C
33AQI
30AQI
33AQI
31AQI
2025 Days Vs Air Quality
Leicester, Leicester, United Kingdom
78%
188
21%
51
0.8%
2
Total number of days with different AQI categories in last 242 days in 2025 (123 days remaining)
Under WHO’s Safe Air Quality Limits: 78%
Health Risk Level:
Low
In 2025, 78% of 242 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
Leicester, Leicester, United Kingdom
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
29AQI
38AQI
45AQI
33AQI
22AQI
22AQI
40AQI
54AQI
71AQI
110AQI
79AQI
47AQI
40AQI
45AQI
48AQI
54AQI
68AQI
64AQI
62AQI
63AQI
78AQI
49AQI
38AQI
36AQI
28AQI
30AQI
25AQI
24AQI
26AQI
31AQI
43AQI
41AQI
49AQI
28AQI
39AQI
58AQI
38AQI
69AQI
89AQI
76AQI
77AQI
78AQI
64AQI
59AQI
79AQI
70AQI
57AQI
67AQI
87AQI
36AQI
27AQI
32AQI
29AQI
28AQI
28AQI
23AQI
24AQI
46AQI
60AQI
64AQI
59AQI
57AQI
64AQI
74AQI
53AQI
60AQI
93AQI
127AQI
53AQI
31AQI
25AQI
38AQI
24AQI
29AQI
25AQI
39AQI
73AQI
73AQI
72AQI
54AQI
73AQI
83AQI
56AQI
49AQI
36AQI
19AQI
23AQI
34AQI
38AQI
26AQI
35AQI
56AQI
62AQI
36AQI
26AQI
26AQI
34AQI
41AQI
50AQI
60AQI
61AQI
38AQI
19AQI
33AQI
20AQI
17AQI
29AQI
42AQI
21AQI
35AQI
22AQI
21AQI
35AQI
29AQI
58AQI
56AQI
22AQI
48AQI
47AQI
56AQI
48AQI
30AQI
20AQI
20AQI
22AQI
29AQI
20AQI
26AQI
25AQI
29AQI
35AQI
34AQI
40AQI
39AQI
40AQI
35AQI
47AQI
37AQI
37AQI
39AQI
31AQI
27AQI
24AQI
18AQI
20AQI
17AQI
16AQI
17AQI
16AQI
19AQI
22AQI
21AQI
23AQI
22AQI
18AQI
16AQI
16AQI
25AQI
64AQI
55AQI
40AQI
42AQI
35AQI
36AQI
25AQI
23AQI
33AQI
34AQI
34AQI
42AQI
41AQI
40AQI
22AQI
22AQI
16AQI
16AQI
19AQI
16AQI
17AQI
22AQI
27AQI
31AQI
19AQI
19AQI
18AQI
17AQI
17AQI
21AQI
21AQI
21AQI
24AQI
24AQI
28AQI
32AQI
23AQI
21AQI
21AQI
19AQI
22AQI
25AQI
20AQI
19AQI
34AQI
50AQI
59AQI
42AQI
26AQI
28AQI
24AQI
24AQI
21AQI
21AQI
20AQI
23AQI
23AQI
24AQI
29AQI
30AQI
36AQI
25AQI
42AQI
43AQI
50AQI
56AQI
51AQI
43AQI
44AQI
38AQI
31AQI
32AQI
33AQI
26AQI
25AQI
26AQI
29AQI
32AQI
29AQI
29AQI
25AQI
21AQI
46AQI
51AQI
53AQI
37AQI
29AQI
29AQI
26AQI
32AQI
No. of days
202538AQI
Highest AQI recorded in
March53AQI
Lowest AQI recorded in
July26AQI
202434AQI
Highest AQI recorded in
November45AQI
Lowest AQI recorded in
July25AQI
202334AQI
Highest AQI recorded in
February46AQI
Lowest AQI recorded in
July23AQI
202239AQI
Highest AQI recorded in
March61AQI
Lowest AQI recorded in
July28AQI
202137AQI
Highest AQI recorded in
March48AQI
Lowest AQI recorded in
August28AQI
202034AQI
Highest AQI recorded in
November49AQI
Lowest AQI recorded in
July20AQI
Most & Least Polluted Years Over the Last 6 Years
Leicester's annual 2025 AQI (38) shows an average percentage change of 6.7% (worsened AQI) compared to previous years: 2020 (34), 2021 (37), 2022 (39), 2023 (34), 2024 (34).