Weather in Tehran

• All Year
• Winter
• Spring
• Summer
• Autumn

Yearly weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

• Tehran exhibits significant temperature variation throughout the year, with the hottest months being June through August, where maximum temperatures reach up to 99.3°F

• The coldest months are December and January, with temperatures dropping to a minimum of 31.4°F

• Notably, the transition from summer to autumn shows a sharp decrease in both minimum and maximum temperatures, particularly in September and October.

Conditions

• In Tehran, sunlight hours peak during the summer months, particularly in June with 13.9 hours, while precipitation levels are notably low, especially in July and August where there is no recorded rainfall.

• Conversely, the winter months of January and February show a decrease in sunlight hours to around 6.4 hours, coupled with minimal precipitation. This indicates a clear seasonal pattern where longer sun exposure correlates with low precipitation, while shorter days accompany slightly higher rainfall.

Astronomy

• In Tehran, the earliest sunrise occurs in June at 05:09, while the latest sunrise is at 07:12 in January, indicating a significant variance in morning light throughout the year.

• Conversely, the latest sunset is also in June at 19:41, whereas the earliest sunset happens in December at 16:53, resulting in the longest and shortest days of 14:32 and 09:47 respectively.

• Overall, Tehran experiences its longest day length during summer months, correlating with both the earliest sunrise and latest sunset.