Kuala Selangor, Klang, Selangor, Malaysia 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
Kuala Selangor, Klang, Selangor, Malaysia
AQI Trends: Highest and Lowest
Same Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 55 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Kuala Selangor, Klang, Selangor, Malaysia
7 AM3rd Aug 2025
7 PM
6 AM4th Aug 2025
59AQI
52AQI
65AQI
55AQI
In the last 24 hours,
Kuala Selangor's AQI reached its highest point of 65 at 10 PM during the Night, while the lowest point, 52, was recorded at 8 AM during the Day between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Kuala Selangor, Klang, Selangor, Malaysia
28°C25/30°C
28°C25/30°C
28°C25/30°C
27°C25/30°C
27°C25/30°C
28°C26/30°C
28°C25/31°C
28°C25/30°C
26°C25/28°C
28°C26/31°C
27°C26/29°C
28°C26/30°C
28°C26/30°C
28°C27/30°C
28°C26/31°C
29°C27/30°C
28°C25/30°C
28°C26/31°C
28°C25/30°C
28°C25/31°C
28°C25/30°C
28°C26/30°C
28°C25/31°C
28°C25/31°C
29°C26/32°C
29°C26/31°C
28°C25/30°C
29°C26/31°C
29°C26/32°C
29°C27/31°C
--°C/°C
51AQI
51AQI
53AQI
53AQI
2025 Days Vs Air Quality
Kuala Selangor, Klang, Selangor, Malaysia
34%
73
66%
142
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Under WHO’s Safe Air Quality Limits: 34%
Health Risk Level:
High
In 2025, 34% of 216 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Kuala Selangor, Klang, Selangor, Malaysia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
59AQI
59AQI
57AQI
59AQI
59AQI
59AQI
62AQI
59AQI
58AQI
58AQI
58AQI
59AQI
60AQI
61AQI
60AQI
60AQI
59AQI
60AQI
60AQI
61AQI
61AQI
62AQI
62AQI
64AQI
62AQI
64AQI
62AQI
61AQI
61AQI
61AQI
63AQI
63AQI
64AQI
65AQI
69AQI
69AQI
70AQI
69AQI
70AQI
70AQI
69AQI
70AQI
69AQI
70AQI
69AQI
68AQI
68AQI
69AQI
68AQI
69AQI
68AQI
67AQI
66AQI
66AQI
65AQI
64AQI
63AQI
62AQI
61AQI
61AQI
59AQI
60AQI
59AQI
58AQI
57AQI
57AQI
56AQI
56AQI
55AQI
55AQI
54AQI
55AQI
54AQI
53AQI
52AQI
52AQI
51AQI
53AQI
54AQI
54AQI
55AQI
55AQI
56AQI
56AQI
57AQI
56AQI
57AQI
58AQI
58AQI
58AQI
57AQI
57AQI
57AQI
56AQI
55AQI
55AQI
54AQI
54AQI
53AQI
53AQI
52AQI
53AQI
51AQI
51AQI
49AQI
49AQI
50AQI
50AQI
51AQI
51AQI
51AQI
51AQI
51AQI
50AQI
50AQI
50AQI
50AQI
50AQI
50AQI
49AQI
50AQI
49AQI
48AQI
48AQI
49AQI
51AQI
51AQI
53AQI
52AQI
52AQI
52AQI
50AQI
49AQI
49AQI
49AQI
51AQI
53AQI
52AQI
50AQI
52AQI
50AQI
48AQI
48AQI
46AQI
45AQI
43AQI
42AQI
42AQI
43AQI
46AQI
48AQI
50AQI
50AQI
51AQI
50AQI
50AQI
49AQI
47AQI
43AQI
44AQI
42AQI
42AQI
43AQI
42AQI
43AQI
43AQI
43AQI
42AQI
41AQI
41AQI
39AQI
39AQI
37AQI
37AQI
37AQI
38AQI
39AQI
40AQI
40AQI
42AQI
43AQI
45AQI
44AQI
45AQI
46AQI
47AQI
47AQI
47AQI
49AQI
49AQI
49AQI
50AQI
50AQI
51AQI
51AQI
52AQI
52AQI
53AQI
52AQI
53AQI
52AQI
52AQI
52AQI
52AQI
52AQI
52AQI
53AQI
53AQI
53AQI
54AQI
54AQI
55AQI
55AQI
55AQI
55AQI
60AQI
67AQI
56AQI
52AQI
49AQI
43AQI
51AQI
55AQI
No. of days
202554AQI
Highest AQI recorded in
February67AQI
Lowest AQI recorded in
June43AQI
202424AQI
Highest AQI recorded in
June59AQI
Lowest AQI recorded in
September0AQI
20230AQI
Highest AQI recorded in
February0AQI
Lowest AQI recorded in
December0AQI
20220AQI
Highest AQI recorded in
January0AQI
Lowest AQI recorded in
November0AQI
202122AQI
Highest AQI recorded in
February64AQI
Lowest AQI recorded in
December0AQI
202053AQI
Highest AQI recorded in
August64AQI
Lowest AQI recorded in
November44AQI
Most & Least Polluted Years Over the Last 6 Years
Kuala Selangor's annual 2025 AQI (54) shows an average percentage change of 94.4% (worsened AQI) compared to previous years: 2020 (53), 2021 (22), 2022 (0), 2023 (0), 2024 (24).