Air Quality in Semenyih, Malaysia
Drizzle
25.5°C · 83.7% humidity
25.5°
Feels 25.5°
67
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
6 stations
Nearby Monitoring Stations
AQI Forecast
54
4am
34
27
67
7am
58
51
46
10am
43
40
38
1pm
37
36
56
4pm
55
55
55
7pm
54
66
66
10pm
66
66
54
1am
54
54
Air Quality Index Trend
43h · 8 stnSemenyih's air quality is affected by vehicle emissions, industrial activity, and periodic transboundary haze from agricultural burning. The dry season tends to produce elevated particulate levels. Current PM2.5 concentration in Semenyih is 1.3× the WHO 24-hour guideline of 15 µg/m³.
83.7%
Humidity
8.1 km/h
Wind SSE
1010.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
19.52 µg/m³
PM10
34.3 µg/m³
050100150200300500
What is the weather forecast for Semenyih?
Temperature & Precipitation
PM2.5 Trend
43h · 8 stationsPM2.519.52 µg/m³
×1.3 WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX0.7
Low
Station readings (6 stations within 25 km)
19.52
Median
19.33
Average
12.6
Low
22.1
High
PM2.5 µg/m³ · Model: 17.65 · Bias: -1.9
What is the 7-day forecast for Semenyih?
07-21
30.0° 25.5°
5.75 mm
07-22
29.4° 25.5°
8.38 mm
07-23
32.1° 26.0°
0.75 mm
07-24
32.1° 25.5°
0.13 mm
07-25
31.2° 25.1°
0.81 mm
07-26
33.1° 24.7°
0.5 mm
07-27
30.8° 26.1°
1.5 mm
Both models agree
Avg diff: 1.3°C
Where are air quality stations near Semenyih?
48
Nilai, Negeri Sembilan, Malaysia
46
Nilai, Negeri Sembilan, Malaysia
29
Nilai, Negeri Sembilan, Malaysia
46
Putrajaya, W.p. Putrajaya, Malaysia
25
Putrajaya, W.p. Putrajaya, Malaysia
61
Cheras,Kuala Lumpur, Wilayah Persekutuan, Malaysia
42
Cheras,Kuala Lumpur, Wilayah Persekutuan, Malaysia
21
Cheras,Kuala Lumpur, Wilayah Persekutuan, Malaysia
65
Bukit Bintang
25
Kuala Lumpur
What cities are near Semenyih?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T23:50 UTC.