Harelbeke, Flanders, Belgium 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
Harelbeke, Flanders, Belgium
AQI Trends: Highest and Lowest
Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 23 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Harelbeke, Flanders, Belgium
5 AM1st Aug 2025
9 PM
4 AM2nd Aug 2025
43AQI
19AQI
23AQI
19AQI
In the last 24 hours,
Harelbeke's AQI reached its highest point of 43 at 9 AM during the Day, while the lowest point, 19, was recorded at 3 AM during the Night between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Harelbeke, Flanders, Belgium
18°C13/23°C
20°C12/27°C
18°C15/24°C
17°C15/19°C
16°C13/19°C
15°C12/20°C
19°C12/25°C
20°C15/27°C
21°C15/27°C
20°C15/27°C
21°C15/27°C
21°C17/26°C
19°C14/24°C
19°C15/23°C
20°C14/27°C
24°C17/31°C
25°C19/33°C
19°C17/24°C
17°C14/21°C
19°C14/24°C
18°C14/23°C
19°C14/23°C
20°C15/24°C
21°C16/27°C
18°C15/22°C
18°C14/23°C
19°C15/23°C
19°C15/23°C
19°C16/25°C
18°C14/23°C
--°C/°C
35AQI
27AQI
30AQI
30AQI
2025 Days Vs Air Quality
Harelbeke, Flanders, Belgium
65%
138
31%
66
4%
9
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Under WHO’s Safe Air Quality Limits: 65%
Health Risk Level:
Moderate
In 2025, 65% of 214 days were within WHO’s safe air quality limits, and 35% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Harelbeke, Flanders, Belgium
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
27AQI
32AQI
57AQI
30AQI
22AQI
23AQI
38AQI
35AQI
64AQI
103AQI
81AQI
88AQI
97AQI
93AQI
74AQI
76AQI
68AQI
92AQI
97AQI
89AQI
84AQI
60AQI
30AQI
36AQI
29AQI
22AQI
25AQI
31AQI
32AQI
48AQI
66AQI
81AQI
101AQI
69AQI
73AQI
71AQI
55AQI
64AQI
39AQI
140AQI
99AQI
84AQI
93AQI
119AQI
99AQI
69AQI
76AQI
81AQI
90AQI
74AQI
58AQI
46AQI
45AQI
28AQI
51AQI
37AQI
27AQI
43AQI
50AQI
73AQI
106AQI
117AQI
109AQI
86AQI
59AQI
71AQI
90AQI
130AQI
91AQI
41AQI
38AQI
32AQI
44AQI
51AQI
45AQI
43AQI
53AQI
61AQI
59AQI
40AQI
31AQI
79AQI
126AQI
67AQI
72AQI
61AQI
37AQI
41AQI
38AQI
42AQI
40AQI
55AQI
60AQI
55AQI
24AQI
37AQI
53AQI
60AQI
46AQI
60AQI
70AQI
49AQI
30AQI
42AQI
25AQI
41AQI
48AQI
39AQI
53AQI
45AQI
47AQI
28AQI
61AQI
60AQI
66AQI
57AQI
66AQI
64AQI
58AQI
57AQI
66AQI
65AQI
22AQI
24AQI
23AQI
35AQI
40AQI
31AQI
27AQI
26AQI
36AQI
46AQI
49AQI
45AQI
34AQI
39AQI
41AQI
44AQI
33AQI
49AQI
32AQI
23AQI
31AQI
22AQI
30AQI
22AQI
21AQI
30AQI
23AQI
30AQI
32AQI
26AQI
26AQI
20AQI
17AQI
22AQI
21AQI
17AQI
50AQI
58AQI
39AQI
49AQI
56AQI
46AQI
33AQI
36AQI
35AQI
39AQI
43AQI
46AQI
38AQI
37AQI
27AQI
30AQI
24AQI
24AQI
27AQI
24AQI
22AQI
31AQI
41AQI
46AQI
38AQI
28AQI
26AQI
21AQI
22AQI
23AQI
28AQI
31AQI
34AQI
31AQI
34AQI
44AQI
35AQI
29AQI
31AQI
33AQI
37AQI
29AQI
20AQI
19AQI
18AQI
33AQI
35AQI
44AQI
29AQI
26AQI
34AQI
32AQI
27AQI
23AQI
55AQI
71AQI
66AQI
49AQI
35AQI
33AQI
31AQI
23AQI
No. of days
202548AQI
Highest AQI recorded in
February71AQI
Lowest AQI recorded in
August23AQI
202440AQI
Highest AQI recorded in
January53AQI
Lowest AQI recorded in
April25AQI
202341AQI
Highest AQI recorded in
May52AQI
Lowest AQI recorded in
July29AQI
202247AQI
Highest AQI recorded in
March81AQI
Lowest AQI recorded in
November28AQI
202153AQI
Highest AQI recorded in
March64AQI
Lowest AQI recorded in
August37AQI
202046AQI
Highest AQI recorded in
April67AQI
Lowest AQI recorded in
July30AQI
Most & Least Polluted Years Over the Last 6 Years
Harelbeke's annual 2025 AQI (48) shows an average percentage change of 7.3% (worsened AQI) compared to previous years: 2020 (46), 2021 (53), 2022 (47), 2023 (41), 2024 (40).