Air Quality in Semnan, Iran, Islamic Republic of
Clear
29.7°C · 21.0% humidity
29.7°
Feels 29.7°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Semnan's air quality — share it
AQI Forecast
34
1am
34
34
30
4am
34
54
54
7am
54
54
54
10am
54
54
54
1pm
54
54
66
4pm
66
54
54
7pm
54
54
34
10pm
27
25
Semnan's air quality is affected by desert dust, vehicle emissions, and industrial activity. Dust storms and high temperatures during summer months often drive elevated particulate levels.
21.0%
Humidity
21.3 km/h
Wind NNE
1001.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.1 µg/m³
PM10
27.45 µg/m³
050100150200300500
What is the weather forecast for Semnan?
Temperature & Precipitation
PM2.57.1 µg/m³
✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for Semnan?
07-22
40.4° 29.7°
07-23
39.6° 23.7°
0.62 mm
07-24
41.1° 28.6°
07-25
38.2° 26.9°
07-26
39.7° 30.5°
07-27
41.1° 27.3°
07-28
30.5° 24.6°
3.88 mm
Both models agree
Avg diff: 5.5°C
What cities are near Semnan?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-22T01:40 UTC.