Wemmel, Vlaanderen, Belgium 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
Wemmel, Vlaanderen, Belgium
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 22 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 22nd Sep - 23rd Sep 2025
Wemmel, Vlaanderen, Belgium
7 AM22nd Sep 2025
8 PM
6 AM23rd Sep 2025
AQI
AQI
18AQI
15AQI
In the last 24 hours,
Wemmel's AQI reached its highest point of 18 at 2 PM during the Night, while the lowest point, undefined, was recorded at 6 AM during the Night between 22nd Sep and 23rd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Wemmel, Vlaanderen, Belgium
16°C9/23°C
18°C10/26°C
22°C15/30°C
20°C15/27°C
19°C15/23°C
16°C13/22°C
18°C12/22°C
20°C17/24°C
19°C14/25°C
17°C12/23°C
20°C15/25°C
18°C14/22°C
17°C12/23°C
18°C12/25°C
22°C13/32°C
20°C16/25°C
16°C13/20°C
17°C12/23°C
16°C12/19°C
15°C11/20°C
15°C11/20°C
15°C9/21°C
17°C14/21°C
16°C13/19°C
15°C12/22°C
19°C14/25°C
21°C14/30°C
21°C19/26°C
14°C10/16°C
--°C/°C
--°C/°C
23AQI
19AQI
22AQI
19AQI
2025 Days Vs Air Quality
Wemmel, Vlaanderen, Belgium
97%
112
3%
4
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 265 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
Wemmel, Vlaanderen, Belgium
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
22AQI
34AQI
29AQI
28AQI
26AQI
21AQI
18AQI
17AQI
14AQI
17AQI
35AQI
55AQI
36AQI
42AQI
54AQI
48AQI
35AQI
33AQI
32AQI
36AQI
37AQI
32AQI
29AQI
29AQI
24AQI
25AQI
21AQI
23AQI
22AQI
18AQI
19AQI
24AQI
32AQI
38AQI
29AQI
25AQI
22AQI
19AQI
19AQI
20AQI
25AQI
27AQI
23AQI
23AQI
27AQI
38AQI
28AQI
25AQI
24AQI
25AQI
29AQI
27AQI
20AQI
19AQI
18AQI
26AQI
32AQI
34AQI
27AQI
25AQI
27AQI
28AQI
26AQI
22AQI
20AQI
21AQI
23AQI
22AQI
24AQI
26AQI
27AQI
39AQI
34AQI
41AQI
45AQI
54AQI
56AQI
45AQI
49AQI
36AQI
26AQI
27AQI
29AQI
27AQI
21AQI
21AQI
20AQI
22AQI
27AQI
27AQI
29AQI
23AQI
20AQI
17AQI
19AQI
18AQI
17AQI
18AQI
19AQI
19AQI
20AQI
22AQI
22AQI
22AQI
20AQI
18AQI
16AQI
16AQI
18AQI
22AQI
22AQI
19AQI
22AQI
26AQI
22AQI
27AQI
29AQI
26AQI
30AQI
20AQI
No. of days
202527AQI
Highest AQI recorded in
August30AQI
Lowest AQI recorded in
September20AQI
Most & Least Polluted Years Over the Last 1 Years
Wemmel's annual 2025 AQI (27) shows an average percentage change of NaN% (improved AQI) compared to previous years: .