Herentals, Flanders, 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
Herentals, Flanders, Belgium
AQI Trends: Highest and Lowest
Same Day Analysis (26th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 32 of Good air quality, showing improvement over 2023 on the same day.
Day & Night AQI Trend: 26th Sep - 27th Sep 2026
Herentals, Flanders, Belgium
7 AM26th Sep 2026
8 PM
6 AM27th Sep 2026
49AQI
21AQI
36AQI
25AQI
In the last 24 hours,
Herentals's AQI reached its highest point of 49 at 2 PM during the Day, while the lowest point, 21, was recorded at 8 AM during the Day between 26th Sep and 27th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Herentals, Flanders, Belgium
18°C14/21°C
19°C17/23°C
17°C14/21°C
17°C13/22°C
17°C13/23°C
18°C16/21°C
20°C18/25°C
17°C13/22°C
18°C11/25°C
23°C18/29°C
19°C15/21°C
14°C11/18°C
15°C10/20°C
16°C13/21°C
18°C13/23°C
18°C16/21°C
19°C16/22°C
20°C16/28°C
16°C13/19°C
15°C11/20°C
15°C10/20°C
18°C14/21°C
16°C12/19°C
15°C11/20°C
16°C12/21°C
16°C12/21°C
15°C11/19°C
16°C10/23°C
17°C13/23°C
18°C13/25°C
26AQI
20AQI
26AQI
22AQI
2026 Days Vs Air Quality
Herentals, Flanders, Belgium
84%
224
14%
38
2%
4
Total number of days with different AQI categories in last 270 days in 2026 (95 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2026, 84% of 270 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
Herentals, Flanders, Belgium
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI (US)
17AQI (US)
24AQI (US)
22AQI (US)
39AQI (US)
34AQI (US)
35AQI (US)
44AQI (US)
16AQI (US)
56AQI (US)
58AQI (US)
23AQI (US)
19AQI (US)
31AQI (US)
25AQI (US)
13AQI (US)
26AQI (US)
56AQI (US)
58AQI (US)
60AQI (US)
33AQI (US)
66AQI (US)
58AQI (US)
59AQI (US)
91AQI (US)
116AQI (US)
63AQI (US)
50AQI (US)
68AQI (US)
57AQI (US)
28AQI (US)
25AQI (US)
54AQI (US)
71AQI (US)
14AQI (US)
60AQI (US)
42AQI (US)
23AQI (US)
50AQI (US)
61AQI (US)
47AQI (US)
26AQI (US)
30AQI (US)
44AQI (US)
56AQI (US)
48AQI (US)
22AQI (US)
22AQI (US)
39AQI (US)
32AQI (US)
61AQI (US)
30AQI (US)
14AQI (US)
33AQI (US)
43AQI (US)
20AQI (US)
57AQI (US)
46AQI (US)
14AQI (US)
25AQI (US)
35AQI (US)
57AQI (US)
85AQI (US)
66AQI (US)
64AQI (US)
120AQI (US)
118AQI (US)
96AQI (US)
57AQI (US)
38AQI (US)
27AQI (US)
24AQI (US)
36AQI (US)
42AQI (US)
17AQI (US)
21AQI (US)
36AQI (US)
75AQI (US)
88AQI (US)
49AQI (US)
70AQI (US)
96AQI (US)
102AQI (US)
24AQI (US)
10AQI (US)
33AQI (US)
32AQI (US)
20AQI (US)
20AQI (US)
30AQI (US)
39AQI (US)
53AQI (US)
34AQI (US)
27AQI (US)
24AQI (US)
22AQI (US)
29AQI (US)
22AQI (US)
41AQI (US)
22AQI (US)
33AQI (US)
21AQI (US)
40AQI (US)
67AQI (US)
47AQI (US)
29AQI (US)
52AQI (US)
26AQI (US)
22AQI (US)
57AQI (US)
37AQI (US)
35AQI (US)
48AQI (US)
35AQI (US)
22AQI (US)
28AQI (US)
17AQI (US)
20AQI (US)
22AQI (US)
31AQI (US)
43AQI (US)
49AQI (US)
60AQI (US)
49AQI (US)
27AQI (US)
49AQI (US)
58AQI (US)
26AQI (US)
18AQI (US)
26AQI (US)
16AQI (US)
28AQI (US)
34AQI (US)
34AQI (US)
33AQI (US)
28AQI (US)
31AQI (US)
26AQI (US)
35AQI (US)
31AQI (US)
44AQI (US)
35AQI (US)
24AQI (US)
34AQI (US)
24AQI (US)
40AQI (US)
52AQI (US)
33AQI (US)
23AQI (US)
19AQI (US)
22AQI (US)
17AQI (US)
20AQI (US)
22AQI (US)
22AQI (US)
23AQI (US)
20AQI (US)
18AQI (US)
21AQI (US)
17AQI (US)
27AQI (US)
20AQI (US)
29AQI (US)
39AQI (US)
33AQI (US)
24AQI (US)
30AQI (US)
32AQI (US)
28AQI (US)
30AQI (US)
31AQI (US)
40AQI (US)
57AQI (US)
56AQI (US)
50AQI (US)
26AQI (US)
16AQI (US)
23AQI (US)
24AQI (US)
22AQI (US)
22AQI (US)
19AQI (US)
13AQI (US)
18AQI (US)
17AQI (US)
26AQI (US)
26AQI (US)
34AQI (US)
32AQI (US)
28AQI (US)
27AQI (US)
37AQI (US)
26AQI (US)
36AQI (US)
45AQI (US)
44AQI (US)
24AQI (US)
26AQI (US)
28AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
33AQI (US)
28AQI (US)
23AQI (US)
24AQI (US)
30AQI (US)
33AQI (US)
45AQI (US)
14AQI (US)
25AQI (US)
24AQI (US)
34AQI (US)
26AQI (US)
24AQI (US)
26AQI (US)
29AQI (US)
27AQI (US)
28AQI (US)
22AQI (US)
23AQI (US)
29AQI (US)
36AQI (US)
37AQI (US)
26AQI (US)
33AQI (US)
29AQI (US)
28AQI (US)
24AQI (US)
18AQI (US)
18AQI (US)
27AQI (US)
23AQI (US)
21AQI (US)
29AQI (US)
35AQI (US)
30AQI (US)
8AQI (US)
17AQI (US)
23AQI (US)
28AQI (US)
26AQI (US)
19AQI (US)
14AQI (US)
19AQI (US)
21AQI (US)
24AQI (US)
15AQI (US)
14AQI (US)
23AQI (US)
29AQI (US)
30AQI (US)
23AQI (US)
32AQI (US)
25AQI (US)
23AQI (US)
19AQI (US)
23AQI (US)
27AQI (US)
23AQI (US)
27AQI (US)
29AQI (US)
33AQI (US)
26AQI (US)
25AQI (US)
32AQI (US)
44AQI (US)
39AQI (US)
52AQI (US)
34AQI (US)
35AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
24AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
March52AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
202539AQI (US)
Highest AQI (US) recorded in
February66AQI (US)
Lowest AQI (US) recorded in
September22AQI (US)
202437AQI (US)
Highest AQI (US) recorded in
January46AQI (US)
Lowest AQI (US) recorded in
April24AQI (US)
202336AQI (US)
Highest AQI (US) recorded in
May45AQI (US)
Lowest AQI (US) recorded in
August26AQI (US)
202240AQI (US)
Highest AQI (US) recorded in
March68AQI (US)
Lowest AQI (US) recorded in
November24AQI (US)
202145AQI (US)
Highest AQI (US) recorded in
March55AQI (US)
Lowest AQI (US) recorded in
May34AQI (US)
202041AQI (US)
Highest AQI (US) recorded in
November57AQI (US)
Lowest AQI (US) recorded in
July26AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Herentals's annual 2026 AQI (US) (35) shows an average percentage change of -11.2% (improved AQI (US)) compared to previous years: 2020 (41), 2021 (45), 2022 (40), 2023 (36), 2024 (37), 2025 (39).