Harelbeke, Flanders, Belgium Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Harelbeke, Flanders, Belgium
AQI Trends: Highest and Lowest
Same Day Analysis (31st October):
On this day, AQI across the 4 years varied significantly: 2026 ranks 1st highest AQI at 29 of Good air quality on the same day.
Day & Night AQI Trend: 30th Sep - 1st Oct 2026
Harelbeke, Flanders, Belgium
7 AM30th Sep 2026
7 PM
6 AM1st Oct 2026
28AQI
20AQI
29AQI
15AQI
In the last 24 hours,
Harelbeke's AQI reached its highest point of 29 at 11 PM during the Night, while the lowest point, 15, was recorded at 5 AM during the Night between 30th Sep and 1st Oct 2026.
Day & Night AQI Trend : Sep - Oct 2026
Harelbeke, Flanders, Belgium
19°C15/24°C
19°C17/21°C
21°C19/25°C
18°C14/23°C
19°C13/26°C
22°C19/27°C
18°C15/21°C
15°C12/17°C
16°C12/22°C
18°C15/23°C
18°C14/24°C
18°C17/21°C
20°C17/24°C
21°C17/27°C
17°C14/20°C
16°C14/19°C
16°C12/20°C
18°C16/23°C
18°C15/20°C
16°C13/21°C
18°C14/23°C
18°C14/24°C
17°C13/21°C
19°C13/26°C
18°C16/21°C
19°C14/25°C
18°C16/19°C
21°C16/28°C
20°C19/22°C
18°C15/21°C
39AQI
29AQI
37AQI
28AQI
2026 Days Vs Air Quality
Harelbeke, Flanders, Belgium
78%
210
21%
57
1%
3
Total number of days with different AQI categories in last 274 days in 2026 (91 days remaining)
Under WHO’s Safe Air Quality Limits: 78%
Health Risk Level:
Low
In 2026, 78% of 274 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
Harelbeke, Flanders, Belgium
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI (US)
18AQI (US)
22AQI (US)
23AQI (US)
48AQI (US)
42AQI (US)
59AQI (US)
54AQI (US)
15AQI (US)
42AQI (US)
74AQI (US)
27AQI (US)
29AQI (US)
50AQI (US)
30AQI (US)
24AQI (US)
50AQI (US)
70AQI (US)
73AQI (US)
62AQI (US)
30AQI (US)
61AQI (US)
33AQI (US)
30AQI (US)
73AQI (US)
131AQI (US)
50AQI (US)
61AQI (US)
72AQI (US)
39AQI (US)
28AQI (US)
59AQI (US)
64AQI (US)
77AQI (US)
25AQI (US)
74AQI (US)
61AQI (US)
24AQI (US)
36AQI (US)
63AQI (US)
39AQI (US)
23AQI (US)
32AQI (US)
56AQI (US)
43AQI (US)
58AQI (US)
22AQI (US)
24AQI (US)
49AQI (US)
50AQI (US)
55AQI (US)
31AQI (US)
17AQI (US)
30AQI (US)
35AQI (US)
45AQI (US)
64AQI (US)
54AQI (US)
17AQI (US)
30AQI (US)
38AQI (US)
73AQI (US)
71AQI (US)
64AQI (US)
76AQI (US)
116AQI (US)
105AQI (US)
82AQI (US)
58AQI (US)
28AQI (US)
22AQI (US)
26AQI (US)
28AQI (US)
37AQI (US)
18AQI (US)
25AQI (US)
30AQI (US)
74AQI (US)
96AQI (US)
47AQI (US)
77AQI (US)
93AQI (US)
95AQI (US)
25AQI (US)
12AQI (US)
42AQI (US)
15AQI (US)
15AQI (US)
23AQI (US)
27AQI (US)
67AQI (US)
47AQI (US)
24AQI (US)
24AQI (US)
27AQI (US)
25AQI (US)
25AQI (US)
43AQI (US)
57AQI (US)
19AQI (US)
29AQI (US)
26AQI (US)
33AQI (US)
35AQI (US)
34AQI (US)
18AQI (US)
41AQI (US)
24AQI (US)
17AQI (US)
52AQI (US)
54AQI (US)
51AQI (US)
58AQI (US)
37AQI (US)
30AQI (US)
27AQI (US)
21AQI (US)
17AQI (US)
24AQI (US)
57AQI (US)
38AQI (US)
73AQI (US)
52AQI (US)
24AQI (US)
51AQI (US)
52AQI (US)
42AQI (US)
18AQI (US)
18AQI (US)
23AQI (US)
20AQI (US)
28AQI (US)
36AQI (US)
36AQI (US)
34AQI (US)
32AQI (US)
33AQI (US)
33AQI (US)
34AQI (US)
38AQI (US)
54AQI (US)
38AQI (US)
25AQI (US)
47AQI (US)
25AQI (US)
49AQI (US)
61AQI (US)
35AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
23AQI (US)
26AQI (US)
21AQI (US)
22AQI (US)
21AQI (US)
21AQI (US)
22AQI (US)
22AQI (US)
20AQI (US)
22AQI (US)
20AQI (US)
40AQI (US)
50AQI (US)
27AQI (US)
18AQI (US)
45AQI (US)
27AQI (US)
51AQI (US)
65AQI (US)
56AQI (US)
44AQI (US)
63AQI (US)
60AQI (US)
38AQI (US)
34AQI (US)
9AQI (US)
20AQI (US)
21AQI (US)
18AQI (US)
17AQI (US)
24AQI (US)
13AQI (US)
25AQI (US)
12AQI (US)
36AQI (US)
42AQI (US)
60AQI (US)
50AQI (US)
38AQI (US)
29AQI (US)
50AQI (US)
42AQI (US)
46AQI (US)
61AQI (US)
50AQI (US)
24AQI (US)
28AQI (US)
25AQI (US)
28AQI (US)
27AQI (US)
29AQI (US)
46AQI (US)
24AQI (US)
25AQI (US)
29AQI (US)
37AQI (US)
39AQI (US)
34AQI (US)
33AQI (US)
32AQI (US)
30AQI (US)
41AQI (US)
30AQI (US)
22AQI (US)
31AQI (US)
25AQI (US)
33AQI (US)
33AQI (US)
28AQI (US)
28AQI (US)
32AQI (US)
42AQI (US)
54AQI (US)
26AQI (US)
35AQI (US)
37AQI (US)
40AQI (US)
35AQI (US)
24AQI (US)
25AQI (US)
35AQI (US)
27AQI (US)
29AQI (US)
34AQI (US)
43AQI (US)
39AQI (US)
24AQI (US)
53AQI (US)
21AQI (US)
25AQI (US)
35AQI (US)
36AQI (US)
17AQI (US)
25AQI (US)
26AQI (US)
29AQI (US)
30AQI (US)
23AQI (US)
36AQI (US)
28AQI (US)
26AQI (US)
21AQI (US)
34AQI (US)
28AQI (US)
31AQI (US)
51AQI (US)
37AQI (US)
71AQI (US)
32AQI (US)
30AQI (US)
38AQI (US)
40AQI (US)
32AQI (US)
34AQI (US)
38AQI (US)
41AQI (US)
34AQI (US)
60AQI (US)
25AQI (US)
47AQI (US)
44AQI (US)
51AQI (US)
34AQI (US)
38AQI (US)
32AQI (US)
33AQI (US)
33AQI (US)
34AQI (US)
No. of days
202638AQI (US)
Highest AQI (US) recorded in
March51AQI (US)
Lowest AQI (US) recorded in
June32AQI (US)
202545AQI (US)
Highest AQI (US) recorded in
February71AQI (US)
Lowest AQI (US) recorded in
September25AQI (US)
202440AQI (US)
Highest AQI (US) recorded in
January53AQI (US)
Lowest AQI (US) recorded in
April25AQI (US)
202341AQI (US)
Highest AQI (US) recorded in
April52AQI (US)
Lowest AQI (US) recorded in
July29AQI (US)
202247AQI (US)
Highest AQI (US) recorded in
March81AQI (US)
Lowest AQI (US) recorded in
November28AQI (US)
202153AQI (US)
Highest AQI (US) recorded in
March64AQI (US)
Lowest AQI (US) recorded in
August37AQI (US)
202046AQI (US)
Highest AQI (US) recorded in
April67AQI (US)
Lowest AQI (US) recorded in
July30AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Harelbeke's annual 2026 AQI (US) (38) shows an average percentage change of -15.4% (improved AQI (US)) compared to previous years: 2020 (46), 2021 (53), 2022 (47), 2023 (41), 2024 (40), 2025 (45).