Tehran Historic Weather Records

Analyse hottest, coldest, windiest & wettest days

Tehran Weather Trend Graph


Temperature (°C)
.
Months
Max Temp.
Historic Max Temp.
Min Temp.
Historic Min Temp.

Yearly Summary 2026


34°C
Highest Temp
29 May 26

-7°C
Lowest Temp
22 Jan. 26


Seasonal Breakdown

Hottest MonthJune28.92°C

Coldest MonthJanuary0.96°C

Wettest MonthMarch2.86mm

Windiest MonthMay24.93km/h

Frequently Asked Questions


1. What is the hottest month in Tehran historically?

July is historically Tehran's hottest month, with average maximum temperatures around 37°C. During peak heatwave events, the highest recorded temperatures have reached 42°C on 2010-07-11.

2. What is the coldest month in Tehran historically?

January is Tehran's coldest month, with average minimum temperatures around -1°C. The all-time record low of -15°C was recorded on 2011-01-13.

3. What is the average annual rainfall in Tehran over the past 17 years?

Tehran's average annual rainfall is approximately 296.4mm, based on records spanning 17 years.

4. How many rainy days does Tehran experience on average per year?

Tehran historically records approximately 91.6 rainy days per year. March has the highest number of rain days at an average of 14.8 days.

5. What is the all-time highest temperature ever recorded in Tehran?

The all-time highest temperature recorded in Tehran is 42°C on 2010-07-11.

6. What is the all-time lowest temperature ever recorded in Tehran?

The all-time lowest temperature recorded in Tehran is -15°C on 2011-01-13.

7. What is the windiest time of year in Tehran historically?

Tehran experiences its strongest winds during May. The historic gust record of 44.3 kph was recorded on 2026-05-06.

8. What is the highest and lowest humidity in Tehran during a year?

Usually, Tehran's humidity peaks in February at around 47.6% and drops to its lowest in July at approximately 19.6%.