Tehran Weather by Month
Twelve months of Tehran, Iran weather — averages from 2006–2025.
Tehran's warmest month is July (average high 37°C (98.6°F)) and the coolest is January (7.3°C (45.1°F)). The most rain falls in March (about 53 mm), and July is the driest (about 2 mm). June is the sunniest, with about 12.9 hours of sunshine a day.
Best months to visit Tehran
Ranked within Tehran's own year by temperature comfort, rainy days and sunshine — historical averages, not a forecast.
Tehran month by month
January
FairHigh 7.3°C (45.1°F)
Low -2.7°C (27.1°F)
- Rainfall
- 39 mm (1.5 in)
- Rainy days
- 7 rainy days
- Sunshine
- 8.6 h sunshine / day
February
FairHigh 9.6°C (49.3°F)
Low -1°C (30.2°F)
- Rainfall
- 46 mm (1.8 in)
- Rainy days
- 8 rainy days
- Sunshine
- 9.2 h sunshine / day
March
GoodHigh 15.8°C (60.4°F)
Low 4.2°C (39.6°F)
- Rainfall
- 53 mm (2.1 in)
- Rainy days
- 9 rainy days
- Sunshine
- 10 h sunshine / day
April
GreatHigh 22°C (71.6°F)
Low 9.9°C (49.8°F)
- Rainfall
- 40 mm (1.6 in)
- Rainy days
- 8 rainy days
- Sunshine
- 11.2 h sunshine / day
May
GreatHigh 28.6°C (83.5°F)
Low 16°C (60.8°F)
- Rainfall
- 16 mm (0.6 in)
- Rainy days
- 4 rainy days
- Sunshine
- 12.1 h sunshine / day
June
GoodHigh 34.6°C (94.3°F)
Low 22°C (71.6°F)
- Rainfall
- 3 mm (0.1 in)
- Rainy days
- 1 rainy days
- Sunshine
- 12.9 h sunshine / day
July
FairHigh 37°C (98.6°F)
Low 25.5°C (77.9°F)
- Rainfall
- 2 mm (0.1 in)
- Rainy days
- 1 rainy days
- Sunshine
- 12.9 h sunshine / day
August
GoodHigh 35.5°C (95.9°F)
Low 23.9°C (75°F)
- Rainfall
- 4 mm (0.1 in)
- Rainy days
- 0 rainy days
- Sunshine
- 12.7 h sunshine / day
September
GreatHigh 31.1°C (88°F)
Low 19.7°C (67.5°F)
- Rainfall
- 3 mm (0.1 in)
- Rainy days
- 1 rainy days
- Sunshine
- 11.3 h sunshine / day
October
GreatHigh 23.9°C (75°F)
Low 13.2°C (55.8°F)
- Rainfall
- 21 mm (0.8 in)
- Rainy days
- 4 rainy days
- Sunshine
- 10.3 h sunshine / day
November
GoodHigh 14.5°C (58.1°F)
Low 5°C (41°F)
- Rainfall
- 42 mm (1.6 in)
- Rainy days
- 7 rainy days
- Sunshine
- 8.5 h sunshine / day
December
FairHigh 9.2°C (48.6°F)
Low -0.4°C (31.3°F)
- Rainfall
- 38 mm (1.5 in)
- Rainy days
- 6 rainy days
- Sunshine
- 8 h sunshine / day
More Iran cities by month
Based on 20 years of historical weather data (2006–2025) from Open-Meteo. Monthly averages, not a forecast.