Harlington, West Drayton, Hillingdon, United Kingdom 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
Harlington, West Drayton, Hillingdon, United Kingdom
AQI Trends: Highest and Lowest
Same Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 29 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
Harlington, West Drayton, Hillingdon, United Kingdom
5 AM15th Aug 2026
8 PM
4 AM16th Aug 2026
42AQI
21AQI
46AQI
27AQI
In the last 24 hours,
Harlington's AQI reached its highest point of 46 at 2 AM during the Night, while the lowest point, 21, was recorded at 10 AM during the Day between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Harlington, West Drayton, Hillingdon, United Kingdom
20°C15/26°C
18°C11/24°C
19°C12/26°C
20°C14/27°C
22°C17/27°C
22°C18/25°C
23°C16/28°C
22°C16/30°C
20°C16/27°C
21°C13/28°C
24°C18/31°C
26°C19/34°C
22°C17/27°C
21°C15/26°C
20°C14/26°C
21°C15/28°C
24°C17/32°C
24°C19/30°C
21°C16/26°C
18°C12/24°C
20°C14/26°C
21°C15/28°C
24°C17/31°C
22°C17/26°C
21°C16/27°C
25°C17/33°C
28°C20/36°C
27°C21/34°C
23°C19/27°C
12°C-1/25°C
35AQI
28AQI
33AQI
29AQI
2026 Days Vs Air Quality
Harlington, West Drayton, Hillingdon, United Kingdom
94%
210
6%
14
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Under WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2026, 94% of 228 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
Harlington, West Drayton, Hillingdon, United Kingdom
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI (US)
22AQI (US)
25AQI (US)
36AQI (US)
38AQI (US)
42AQI (US)
19AQI (US)
37AQI (US)
22AQI (US)
37AQI (US)
35AQI (US)
19AQI (US)
15AQI (US)
28AQI (US)
14AQI (US)
29AQI (US)
25AQI (US)
71AQI (US)
61AQI (US)
28AQI (US)
11AQI (US)
25AQI (US)
18AQI (US)
28AQI (US)
48AQI (US)
73AQI (US)
35AQI (US)
17AQI (US)
53AQI (US)
46AQI (US)
38AQI (US)
43AQI (US)
49AQI (US)
58AQI (US)
41AQI (US)
42AQI (US)
44AQI (US)
36AQI (US)
39AQI (US)
44AQI (US)
43AQI (US)
41AQI (US)
39AQI (US)
43AQI (US)
42AQI (US)
33AQI (US)
35AQI (US)
40AQI (US)
40AQI (US)
44AQI (US)
42AQI (US)
36AQI (US)
29AQI (US)
32AQI (US)
33AQI (US)
37AQI (US)
30AQI (US)
28AQI (US)
28AQI (US)
31AQI (US)
39AQI (US)
49AQI (US)
61AQI (US)
69AQI (US)
58AQI (US)
29AQI (US)
60AQI (US)
89AQI (US)
39AQI (US)
23AQI (US)
36AQI (US)
37AQI (US)
31AQI (US)
32AQI (US)
31AQI (US)
32AQI (US)
31AQI (US)
40AQI (US)
57AQI (US)
25AQI (US)
33AQI (US)
59AQI (US)
66AQI (US)
17AQI (US)
15AQI (US)
26AQI (US)
30AQI (US)
26AQI (US)
24AQI (US)
25AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
25AQI (US)
28AQI (US)
25AQI (US)
27AQI (US)
44AQI (US)
29AQI (US)
24AQI (US)
31AQI (US)
29AQI (US)
25AQI (US)
29AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
24AQI (US)
42AQI (US)
37AQI (US)
42AQI (US)
30AQI (US)
22AQI (US)
24AQI (US)
26AQI (US)
37AQI (US)
37AQI (US)
48AQI (US)
36AQI (US)
28AQI (US)
25AQI (US)
36AQI (US)
27AQI (US)
19AQI (US)
25AQI (US)
23AQI (US)
19AQI (US)
31AQI (US)
34AQI (US)
37AQI (US)
33AQI (US)
34AQI (US)
32AQI (US)
36AQI (US)
30AQI (US)
44AQI (US)
60AQI (US)
39AQI (US)
34AQI (US)
38AQI (US)
29AQI (US)
27AQI (US)
24AQI (US)
24AQI (US)
22AQI (US)
31AQI (US)
27AQI (US)
18AQI (US)
20AQI (US)
22AQI (US)
24AQI (US)
23AQI (US)
20AQI (US)
42AQI (US)
46AQI (US)
15AQI (US)
20AQI (US)
21AQI (US)
29AQI (US)
24AQI (US)
22AQI (US)
17AQI (US)
21AQI (US)
16AQI (US)
18AQI (US)
21AQI (US)
23AQI (US)
42AQI (US)
38AQI (US)
40AQI (US)
36AQI (US)
21AQI (US)
21AQI (US)
17AQI (US)
20AQI (US)
22AQI (US)
18AQI (US)
16AQI (US)
11AQI (US)
11AQI (US)
17AQI (US)
26AQI (US)
26AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
27AQI (US)
27AQI (US)
23AQI (US)
34AQI (US)
39AQI (US)
50AQI (US)
26AQI (US)
26AQI (US)
33AQI (US)
36AQI (US)
29AQI (US)
33AQI (US)
31AQI (US)
36AQI (US)
31AQI (US)
32AQI (US)
33AQI (US)
29AQI (US)
28AQI (US)
33AQI (US)
30AQI (US)
36AQI (US)
36AQI (US)
30AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
29AQI (US)
29AQI (US)
25AQI (US)
34AQI (US)
37AQI (US)
32AQI (US)
29AQI (US)
33AQI (US)
39AQI (US)
39AQI (US)
29AQI (US)
32AQI (US)
25AQI (US)
27AQI (US)
30AQI (US)
No. of days
202632AQI (US)
Highest AQI (US) recorded in
February39AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202537AQI (US)
Highest AQI (US) recorded in
March57AQI (US)
Lowest AQI (US) recorded in
September22AQI (US)
202431AQI (US)
Highest AQI (US) recorded in
November44AQI (US)
Lowest AQI (US) recorded in
April24AQI (US)
202332AQI (US)
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
August23AQI (US)
202235AQI (US)
Highest AQI (US) recorded in
March53AQI (US)
Lowest AQI (US) recorded in
October28AQI (US)
202134AQI (US)
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
August24AQI (US)
202034AQI (US)
Highest AQI (US) recorded in
April54AQI (US)
Lowest AQI (US) recorded in
July22AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Harlington's annual 2026 AQI (US) (32) shows an average percentage change of -5.1% (improved AQI (US)) compared to previous years: 2020 (34), 2021 (34), 2022 (35), 2023 (32), 2024 (31), 2025 (37).