Birmingham, Birmingham, United Kingdom Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Birmingham, Birmingham, United Kingdom
AQI Trends: Highest and Lowest
Same Day Analysis (5th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 18 of Good air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Sep - 6th Sep 2025
Birmingham, Birmingham, United Kingdom
6 AM5th Sep 2025
8 PM
5 AM6th Sep 2025
40AQI
25AQI
47AQI
30AQI
In the last 24 hours,
Birmingham's AQI reached its highest point of 47 at 1 AM during the Night, while the lowest point, 25, was recorded at 7 PM during the Day between 5th Sep and 6th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Birmingham, Birmingham, United Kingdom
17°C14/20°C
18°C13/24°C
18°C13/24°C
20°C13/27°C
23°C17/29°C
24°C17/31°C
25°C19/32°C
21°C16/25°C
21°C16/28°C
20°C15/26°C
19°C12/27°C
18°C14/23°C
17°C14/21°C
17°C13/22°C
16°C11/21°C
16°C11/23°C
18°C14/22°C
20°C17/24°C
21°C14/28°C
19°C15/24°C
17°C13/23°C
15°C13/20°C
16°C12/22°C
16°C12/21°C
16°C12/21°C
16°C13/19°C
15°C11/19°C
16°C13/20°C
13°C12/16°C
15°C11/20°C
--°C/°C
37AQI
33AQI
36AQI
34AQI
2025 Days Vs Air Quality
Birmingham, Birmingham, United Kingdom
77%
191
23%
56
0.4%
1
Total number of days with different AQI categories in last 249 days in 2025 (116 days remaining)
Under WHO’s Safe Air Quality Limits: 77%
Health Risk Level:
Low
In 2025, 77% of 249 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
Birmingham, Birmingham, United Kingdom
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
31AQI
41AQI
35AQI
45AQI
34AQI
21AQI
21AQI
40AQI
55AQI
58AQI
94AQI
72AQI
41AQI
40AQI
43AQI
51AQI
56AQI
67AQI
67AQI
65AQI
62AQI
76AQI
42AQI
40AQI
33AQI
30AQI
29AQI
24AQI
25AQI
28AQI
33AQI
48AQI
33AQI
44AQI
25AQI
36AQI
57AQI
36AQI
64AQI
84AQI
69AQI
70AQI
75AQI
67AQI
60AQI
75AQI
72AQI
62AQI
70AQI
86AQI
36AQI
27AQI
32AQI
31AQI
30AQI
28AQI
26AQI
27AQI
49AQI
53AQI
61AQI
51AQI
55AQI
61AQI
75AQI
53AQI
60AQI
91AQI
129AQI
52AQI
27AQI
27AQI
34AQI
28AQI
31AQI
29AQI
42AQI
71AQI
77AQI
70AQI
57AQI
72AQI
88AQI
63AQI
42AQI
36AQI
20AQI
23AQI
33AQI
40AQI
32AQI
35AQI
57AQI
67AQI
43AQI
26AQI
27AQI
40AQI
51AQI
59AQI
61AQI
58AQI
35AQI
21AQI
31AQI
19AQI
19AQI
26AQI
47AQI
26AQI
34AQI
21AQI
24AQI
51AQI
45AQI
59AQI
40AQI
23AQI
52AQI
52AQI
57AQI
43AQI
32AQI
19AQI
18AQI
23AQI
37AQI
23AQI
28AQI
28AQI
31AQI
36AQI
34AQI
41AQI
38AQI
35AQI
37AQI
45AQI
39AQI
37AQI
41AQI
35AQI
30AQI
24AQI
18AQI
20AQI
17AQI
16AQI
17AQI
16AQI
18AQI
23AQI
20AQI
22AQI
22AQI
18AQI
15AQI
15AQI
24AQI
64AQI
49AQI
41AQI
43AQI
35AQI
31AQI
22AQI
23AQI
34AQI
31AQI
33AQI
42AQI
43AQI
40AQI
19AQI
20AQI
15AQI
14AQI
18AQI
15AQI
17AQI
21AQI
27AQI
28AQI
17AQI
19AQI
17AQI
16AQI
17AQI
20AQI
19AQI
22AQI
26AQI
22AQI
26AQI
30AQI
21AQI
19AQI
21AQI
18AQI
22AQI
22AQI
19AQI
16AQI
33AQI
56AQI
63AQI
38AQI
25AQI
26AQI
20AQI
19AQI
20AQI
20AQI
20AQI
22AQI
22AQI
24AQI
29AQI
29AQI
30AQI
23AQI
40AQI
40AQI
49AQI
56AQI
49AQI
44AQI
48AQI
40AQI
33AQI
33AQI
33AQI
27AQI
26AQI
27AQI
30AQI
32AQI
30AQI
29AQI
25AQI
21AQI
19AQI
22AQI
21AQI
20AQI
22AQI
19AQI
18AQI
45AQI
51AQI
53AQI
39AQI
30AQI
28AQI
25AQI
31AQI
20AQI
No. of days
202537AQI
Highest AQI recorded in
March53AQI
Lowest AQI recorded in
September20AQI
202435AQI
Highest AQI recorded in
November46AQI
Lowest AQI recorded in
July25AQI
202335AQI
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
August24AQI
202239AQI
Highest AQI recorded in
March61AQI
Lowest AQI recorded in
September29AQI
202137AQI
Highest AQI recorded in
March50AQI
Lowest AQI recorded in
August29AQI
202033AQI
Highest AQI recorded in
March48AQI
Lowest AQI recorded in
July18AQI
Most & Least Polluted Years Over the Last 6 Years
Birmingham's annual 2025 AQI (37) shows an average percentage change of 5.02% (worsened AQI) compared to previous years: 2020 (33), 2021 (37), 2022 (39), 2023 (35), 2024 (35).