What is the air quality in Semnan today?

The current Air Quality Index (AQI) in Semnan is 54 (Moderate). PM2.5 concentration is 13.5 µg/m³.

What is the temperature in Semnan right now?

The current temperature in Semnan is 19.8°C (feels like 19.8°C). Humidity is 42.1% and wind speed is 19.8 km/h.

Air Quality in Semnan, Iran, Islamic Republic of

Drizzle

19.8°C · 42.1% humidity

19.8°

Feels 19.8°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

Model forecast

Nearby Monitoring Stations

AQI Forecast

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View AQI history for Semnan →

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.

42.1%

Humidity

19.8 km/h

Wind NE

1017.0 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

13.5 µg/m³

PM10

41.2 µg/m³

050100150200300500

What is the weather forecast for Semnan?

Temperature & Precipitation

PM2.513.5 µg/m³ ✓ WHO

Moderate

PM1041.2 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Semnan?

10-21

22.0° 14.2°

2.25 mm

10-22

23.0° 12.4°

2.13 mm

10-23

23.2° 14.5°

5.5 mm

10-24

24.8° 13.4°

10-25

25.2° 16.8°

0.06 mm

10-26

19.7° 16.9°

1.44 mm

10-27

27.2° 15.5°

Both models agree Avg diff: 5.7°C

What cities are near Semnan?

54 Mahdishahr 25 Zīr Āb 54 Īstgāh-e Rāh Āhan-e Garmsār 54 Dāmghān 54 Qā’em Shahr 54 Sari 54 Nekā 66 Damāvand 54 Behshahr 66 Bābol

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T10:42 UTC.