Petaling Jaya, Selangor, Malaysia Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Petaling Jaya, Selangor, Malaysia
AQI Trends: Highest and Lowest
Same Day Analysis (20th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 66 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Petaling Jaya, Selangor, Malaysia
7 AM21st Sep 2025
7 PM
6 AM22nd Sep 2025
AQI
AQI
99AQI
62AQI
In the last 24 hours,
Petaling Jaya's AQI reached its highest point of 99 at 10 AM during the Night, while the lowest point, undefined, was recorded at 6 AM during the Night between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Petaling Jaya, Selangor, Malaysia
28°C24/35°C
27°C23/31°C
28°C24/33°C
29°C25/34°C
29°C25/35°C
24°C22/26°C
26°C23/31°C
27°C23/32°C
28°C24/34°C
28°C24/32°C
26°C24/29°C
27°C24/30°C
26°C24/29°C
27°C23/33°C
27°C24/31°C
27°C24/32°C
26°C24/31°C
27°C23/32°C
27°C24/33°C
26°C23/29°C
25°C23/27°C
25°C24/26°C
26°C23/32°C
27°C23/32°C
26°C24/28°C
25°C23/28°C
27°C23/33°C
27°C23/32°C
27°C24/32°C
--°C/°C
--°C/°C
60AQI
57AQI
61AQI
58AQI
2025 Days Vs Air Quality
Petaling Jaya, Selangor, Malaysia
19%
49
81%
214
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Under WHO’s Safe Air Quality Limits: 19%
Health Risk Level:
Extreme
In 2025, 19% of 264 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Petaling Jaya, Selangor, Malaysia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
58AQI
59AQI
58AQI
58AQI
59AQI
58AQI
58AQI
58AQI
58AQI
57AQI
57AQI
56AQI
57AQI
58AQI
58AQI
58AQI
58AQI
58AQI
58AQI
59AQI
60AQI
60AQI
61AQI
60AQI
60AQI
60AQI
60AQI
60AQI
60AQI
60AQI
61AQI
61AQI
62AQI
63AQI
65AQI
66AQI
66AQI
68AQI
68AQI
68AQI
66AQI
66AQI
65AQI
65AQI
66AQI
66AQI
65AQI
66AQI
65AQI
65AQI
65AQI
64AQI
64AQI
63AQI
63AQI
62AQI
61AQI
60AQI
60AQI
59AQI
58AQI
58AQI
58AQI
57AQI
57AQI
57AQI
56AQI
56AQI
55AQI
55AQI
55AQI
55AQI
54AQI
54AQI
53AQI
53AQI
52AQI
53AQI
53AQI
54AQI
54AQI
55AQI
55AQI
55AQI
55AQI
55AQI
56AQI
57AQI
58AQI
57AQI
57AQI
56AQI
56AQI
55AQI
55AQI
55AQI
54AQI
54AQI
54AQI
54AQI
53AQI
53AQI
52AQI
52AQI
51AQI
51AQI
52AQI
52AQI
52AQI
52AQI
52AQI
52AQI
51AQI
51AQI
51AQI
51AQI
51AQI
51AQI
51AQI
50AQI
51AQI
52AQI
52AQI
52AQI
52AQI
54AQI
53AQI
54AQI
53AQI
54AQI
53AQI
52AQI
51AQI
52AQI
52AQI
52AQI
53AQI
52AQI
51AQI
51AQI
50AQI
49AQI
49AQI
47AQI
47AQI
45AQI
43AQI
42AQI
44AQI
45AQI
48AQI
49AQI
49AQI
50AQI
49AQI
50AQI
50AQI
51AQI
49AQI
47AQI
46AQI
47AQI
47AQI
44AQI
43AQI
43AQI
42AQI
41AQI
40AQI
40AQI
39AQI
41AQI
41AQI
40AQI
40AQI
40AQI
42AQI
43AQI
44AQI
46AQI
46AQI
47AQI
45AQI
46AQI
48AQI
49AQI
50AQI
51AQI
52AQI
52AQI
52AQI
53AQI
53AQI
53AQI
53AQI
53AQI
53AQI
54AQI
54AQI
54AQI
53AQI
53AQI
52AQI
52AQI
53AQI
53AQI
54AQI
55AQI
54AQI
57AQI
55AQI
56AQI
57AQI
56AQI
56AQI
57AQI
55AQI
60AQI
63AQI
72AQI
73AQI
68AQI
64AQI
61AQI
61AQI
61AQI
57AQI
59AQI
60AQI
61AQI
60AQI
63AQI
64AQI
71AQI
68AQI
62AQI
62AQI
60AQI
68AQI
60AQI
62AQI
61AQI
64AQI
62AQI
56AQI
58AQI
53AQI
51AQI
55AQI
52AQI
55AQI
51AQI
58AQI
58AQI
54AQI
55AQI
57AQI
51AQI
47AQI
50AQI
56AQI
62AQI
66AQI
59AQI
64AQI
55AQI
53AQI
50AQI
45AQI
52AQI
62AQI
55AQI
No. of days
202555AQI
Highest AQI recorded in
February64AQI
Lowest AQI recorded in
June45AQI
202427AQI
Highest AQI recorded in
June59AQI
Lowest AQI recorded in
September1AQI
202320AQI
Highest AQI recorded in
January64AQI
Lowest AQI recorded in
October0AQI
202210AQI
Highest AQI recorded in
December55AQI
Lowest AQI recorded in
September0AQI
202129AQI
Highest AQI recorded in
March76AQI
Lowest AQI recorded in
December0AQI
202061AQI
Highest AQI recorded in
December76AQI
Lowest AQI recorded in
April54AQI
Most & Least Polluted Years Over the Last 6 Years
Petaling Jaya's annual 2025 AQI (55) shows an average percentage change of 161.5% (worsened AQI) compared to previous years: 2020 (61), 2021 (29), 2022 (10), 2023 (20), 2024 (27).