Diest, Flanders, Belgium Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Diest, Flanders, Belgium
AQI Trends: Highest and Lowest
Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 39 of Good air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Diest, Flanders, Belgium
5 AM2nd Jul 2025
9 PM
4 AM3rd Jul 2025
46AQI
33AQI
32AQI
24AQI
In the last 24 hours,
Diest's AQI reached its highest point of 46 at 9 AM during the Day, while the lowest point, 24, was recorded at 4 AM during the Night between 2nd Jul and 3rd Jul 2025.
Day & Night AQI Trend : Jun - Jul 2025
Diest, Flanders, Belgium
17°C10/24°C
16°C12/20°C
15°C11/18°C
16°C12/21°C
14°C12/18°C
14°C10/17°C
14°C9/19°C
15°C11/20°C
16°C9/22°C
21°C11/29°C
26°C19/32°C
22°C17/27°C
18°C14/23°C
18°C12/23°C
20°C13/27°C
20°C14/27°C
20°C13/27°C
21°C13/28°C
24°C15/32°C
23°C18/29°C
19°C15/23°C
18°C11/24°C
23°C16/31°C
20°C18/24°C
18°C14/24°C
23°C17/29°C
23°C17/31°C
25°C17/33°C
29°C22/37°C
26°C17/36°C
0°C0/0°C
30AQI
30AQI
31AQI
29AQI
2025 Days Vs Air Quality
Diest, Flanders, Belgium
69%
126
29%
53
2%
4
Total number of days with different AQI categories in last 184 days in 2025 (181 days remaining)
Under WHO’s Safe Air Quality Limits: 69%
Health Risk Level:
Moderate
In 2025, 69% of 184 days were within WHO’s safe air quality limits, and 31% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Diest, Flanders, Belgium
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
26AQI
28AQI
48AQI
31AQI
25AQI
25AQI
27AQI
30AQI
49AQI
71AQI
79AQI
71AQI
68AQI
80AQI
53AQI
57AQI
62AQI
79AQI
84AQI
85AQI
63AQI
50AQI
24AQI
29AQI
29AQI
29AQI
28AQI
26AQI
27AQI
48AQI
56AQI
64AQI
84AQI
67AQI
58AQI
68AQI
52AQI
65AQI
56AQI
126AQI
68AQI
67AQI
99AQI
113AQI
87AQI
56AQI
65AQI
74AQI
75AQI
68AQI
40AQI
34AQI
35AQI
25AQI
34AQI
37AQI
26AQI
31AQI
46AQI
64AQI
75AQI
92AQI
83AQI
61AQI
49AQI
67AQI
80AQI
108AQI
98AQI
43AQI
50AQI
29AQI
43AQI
51AQI
35AQI
29AQI
40AQI
53AQI
56AQI
30AQI
18AQI
62AQI
124AQI
56AQI
65AQI
77AQI
41AQI
32AQI
33AQI
30AQI
32AQI
48AQI
49AQI
46AQI
20AQI
28AQI
35AQI
53AQI
50AQI
58AQI
59AQI
41AQI
36AQI
33AQI
22AQI
29AQI
36AQI
36AQI
46AQI
29AQI
40AQI
30AQI
45AQI
53AQI
53AQI
36AQI
38AQI
49AQI
42AQI
41AQI
49AQI
61AQI
24AQI
24AQI
22AQI
30AQI
26AQI
21AQI
22AQI
24AQI
21AQI
32AQI
38AQI
40AQI
30AQI
36AQI
40AQI
38AQI
28AQI
43AQI
30AQI
21AQI
24AQI
19AQI
24AQI
20AQI
18AQI
25AQI
22AQI
37AQI
29AQI
29AQI
27AQI
22AQI
19AQI
17AQI
16AQI
17AQI
36AQI
52AQI
38AQI
41AQI
57AQI
50AQI
33AQI
32AQI
32AQI
40AQI
40AQI
30AQI
31AQI
30AQI
23AQI
25AQI
20AQI
23AQI
23AQI
17AQI
21AQI
28AQI
30AQI
39AQI
47AQI
62AQI
58AQI
40AQI
30AQI
30AQI
35AQI
No. of days
202544AQI
Highest AQI recorded in
February62AQI
Lowest AQI recorded in
June30AQI
202437AQI
Highest AQI recorded in
January46AQI
Lowest AQI recorded in
April23AQI
202337AQI
Highest AQI recorded in
June48AQI
Lowest AQI recorded in
November27AQI
202239AQI
Highest AQI recorded in
March68AQI
Lowest AQI recorded in
November22AQI
202146AQI
Highest AQI recorded in
March57AQI
Lowest AQI recorded in
August32AQI
202041AQI
Highest AQI recorded in
March59AQI
Lowest AQI recorded in
July28AQI
Most & Least Polluted Years Over the Last 6 Years
Diest's annual 2025 AQI (44) shows an average percentage change of 10.7% (worsened AQI) compared to previous years: 2020 (41), 2021 (46), 2022 (39), 2023 (37), 2024 (37).