Shah Alam, Selangor, Malaysia Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Shah Alam, Selangor, Malaysia
AQI Trends: Highest and Lowest
Same Day Analysis (12th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 51 of Moderate air quality, showing improvement over 2025 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Mar - 13th Mar 2026
Shah Alam, Selangor, Malaysia
7 AM12th Mar 2026
7 PM
6 AM13th Mar 2026
60AQI
43AQI
50AQI
39AQI
In the last 24 hours,
Shah Alam's AQI reached its highest point of 60 at 9 AM during the Day, while the lowest point, 39, was recorded at 6 AM during the Night between 12th Mar and 13th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Shah Alam, Selangor, Malaysia
26°C23/30°C
26°C24/33°C
26°C23/31°C
26°C23/30°C
25°C22/29°C
24°C22/28°C
25°C23/29°C
25°C23/32°C
27°C23/33°C
27°C23/33°C
27°C23/32°C
26°C23/30°C
26°C24/31°C
26°C23/30°C
25°C23/28°C
26°C23/31°C
26°C23/31°C
27°C23/32°C
26°C24/31°C
26°C24/31°C
26°C23/31°C
26°C23/30°C
25°C23/28°C
25°C23/30°C
26°C23/33°C
27°C23/33°C
27°C23/34°C
27°C23/33°C
26°C23/33°C
27°C23/34°C
84AQI
48AQI
73AQI
48AQI
2026 Days Vs Air Quality
Shah Alam, Selangor, Malaysia
4%
3
96%
68
Total number of days with different AQI categories in last 73 days in 2026 (292 days remaining)
Under WHO’s Safe Air Quality Limits: 4%
Health Risk Level:
Extreme
In 2026, 4% of 73 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
Shah Alam, Selangor, Malaysia
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
63AQI (US)
71AQI (US)
69AQI (US)
63AQI (US)
76AQI (US)
55AQI (US)
56AQI (US)
59AQI (US)
70AQI (US)
75AQI (US)
90AQI (US)
82AQI (US)
74AQI (US)
86AQI (US)
99AQI (US)
84AQI (US)
93AQI (US)
88AQI (US)
85AQI (US)
87AQI (US)
80AQI (US)
68AQI (US)
61AQI (US)
55AQI (US)
58AQI (US)
52AQI (US)
51AQI (US)
61AQI (US)
59AQI (US)
63AQI (US)
61AQI (US)
59AQI (US)
60AQI (US)
59AQI (US)
57AQI (US)
55AQI (US)
61AQI (US)
58AQI (US)
60AQI (US)
62AQI (US)
59AQI (US)
60AQI (US)
56AQI (US)
62AQI (US)
64AQI (US)
62AQI (US)
59AQI (US)
60AQI (US)
61AQI (US)
56AQI (US)
56AQI (US)
57AQI (US)
57AQI (US)
64AQI (US)
58AQI (US)
58AQI (US)
54AQI (US)
54AQI (US)
46AQI (US)
47AQI (US)
65AQI (US)
59AQI (US)
55AQI (US)
58AQI (US)
56AQI (US)
51AQI (US)
59AQI (US)
55AQI (US)
50AQI (US)
51AQI (US)
51AQI (US)
71AQI (US)
58AQI (US)
55AQI (US)
No. of days
202663AQI (US)
Highest AQI (US) recorded in
January71AQI (US)
Lowest AQI (US) recorded in
March55AQI (US)
202560AQI (US)
Highest AQI (US) recorded in
December81AQI (US)
Lowest AQI (US) recorded in
June44AQI (US)
202423AQI (US)
Highest AQI (US) recorded in
June59AQI (US)
Lowest AQI (US) recorded in
September0AQI (US)
20230AQI (US)
Highest AQI (US) recorded in
February0AQI (US)
Lowest AQI (US) recorded in
December0AQI (US)
20220AQI (US)
Highest AQI (US) recorded in
January0AQI (US)
Lowest AQI (US) recorded in
November0AQI (US)
202124AQI (US)
Highest AQI (US) recorded in
March68AQI (US)
Lowest AQI (US) recorded in
December0AQI (US)
202057AQI (US)
Highest AQI (US) recorded in
August60AQI (US)
Lowest AQI (US) recorded in
May54AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Shah Alam's annual 2026 AQI (US) (63) shows an average percentage change of 91.1% (worsened AQI (US)) compared to previous years: 2020 (57), 2021 (24), 2022 (0), 2023 (0), 2024 (23), 2025 (60).