Weatheo

Zanjān Weather by Month

Average temperatures, rainfall and humidity for Zanjān, Iran, month by month, built from OpenWeather’s historical records. Use it to see what a typical Zanjān month looks like before you travel — then check the live Zanjān forecast for the days ahead.

Warmest month

July

32°C average high

Coolest month

January

-7°C average low

Wettest month

April

61 mm of rain

Driest month

July

2 mm of rain

Average temperature and rainfall in Zanjān by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January4°C-7°C-22°C / 15°C
32 mm
71%11 km/h
February6°C-6°C-23°C / 20°C
15 mm
70%11 km/h
March12°C-1°C-15°C / 26°C
49 mm
64%14 km/h
April17°C4°C-13°C / 28°C
61 mm
55%13 km/h
May23°C9°C-4°C / 50°C
28 mm
50%13 km/h
June29°C13°C2°C / 38°C
6 mm
42%12 km/h
July32°C15°C3°C / 40°C
2 mm
47%15 km/h
August32°C14°C6°C / 38°C
6 mm
46%13 km/h
September28°C10°C-2°C / 36°C
7 mm
48%12 km/h
October20°C6°C-9°C / 29°C
33 mm
55%11 km/h
November12°C0°C-21°C / 22°C
46 mm
64%10 km/h
December7°C-5°C-19°C / 24°C
40 mm
70%11 km/h

Best time to visit Zanjān

The most comfortable time to visit Zanjān is generally May and September to October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around April, totalling about 325 mm a year.

Travellers who prefer heat should aim for July, when highs average 32°C. April is the month to avoid if rain would spoil your plans — it averages 61 mm, roughly 26× the rainfall of the driest month (July).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Zanjān forecast for what is happening now.

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