The city is the capital of Iran and is located in the north of the country, at 35 degrees north latitude. We are in the northern part of the Iranian plateau and at the foot of the Alborz Mountains, beyond which lies the Caspian Sea. Instead, south of the city lies the desert.
The northern suburbs, located at an altitude of up to 1,700 meters (5,600 feet) above sea level, are colder than the central and southern areas, which are located around 1,000/1,200 meters (3,300/4,000 feet). So, the average daily temperature in January ranges from 2.5 °C (36.5 °F) in the northern area to 5 °C (41 °F) in the southern one, while in July, it ranges from 29 °C to 31 °C (84 °C to 88 °F).
, from December to February, is quite cold, although there are quite mild periods, especially in February, when the maximums exceed 12 °C (53.5 °F). Sometimes there can be cold spells, in which the temperature drops below freezing, and it can also snow. At Mehrabad Airport, located at 1,200 meters (3,900 feet) on the western outskirts of the city and more representative of its climate, the coldest record is -13 °C (8.6 °F), set in January 1973. However, at Imam Khomeini airport, located 30 km (18 mi) southwest of the city and 1,000 meters (3,300 feet) above sea level, the temperature dropped to -20 °C (-4 °F) in January 2008.
in Tehran is hot, with scorching days, usually around 35/37 °C (95/99 °F) in July and August, but the humidity is low and the wind blows frequently. Sometimes there can be heat waves, during which the temperature reaches or exceeds 40 °C (104 °F). The highest record is 43 °C (109.4 °F), set in July 1975.
fall per year, most of which occurring from November to April: the desert is not far from here. However, in the northern districts, close to the mountains, rainfall exceeds 400 mm (15.5 in) per year.
shines regularly in summer, while in winter, there is an alternation between cloudy and sunny days. On average, there are 3,000 hours of sunshine per year.
The best times to visit Tehran are spring and autumn, to avoid the winter cold and the summer heat, in particular, you can choose the first half of April and the second half of October.
. Here are the average temperatures.
January, the coldest month of the year, is generally a quite cold month. The average temperature is of
4.9 °C, with a minimum of
1.3 °C and a maximum of
8.5 °C.
On the coldest nights of the month, the temperature usually drops to around
-5.5 °C. However, it dropped to
-10.8 °C in January 2008.
On the warmest days of the month, the temperature usually reaches around
15.5 °C. However, it reached
21.4 °C in January 2015.
Precipitation amounts to
31.7 mm, distributed over 5 days.
The day lasts on average 10 hours and 5 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 57%.
The average wind speed is of
7.8 kph.
February is generally a quite mild month. The average temperature is of
7 °C, with a minimum of
3 °C and a maximum of
11.1 °C.
On the coldest nights of the month, the temperature usually drops to around
-3.5 °C. However, it dropped to
-7.6 °C in February 2014.
On the warmest days of the month, the temperature usually reaches around
18 °C. However, it reached
24.4 °C in February 2016.
Precipitation amounts to
32.9 mm, distributed over 5 days.
The day lasts on average 10 hours and 55 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 50%.
The average wind speed is of
10.4 kph.
March is generally a mild month. The average temperature is of
11.7 °C, with a minimum of
7.2 °C and a maximum of
16.2 °C.
On the coldest nights of the month, the temperature usually drops to around
-0.5 °C. However, it dropped to
-6 °C in March 1992.
On the warmest days of the month, the temperature usually reaches around
23.5 °C. However, it reached
30.3 °C in March 2018.
Precipitation amounts to
42.5 mm, distributed over 6 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 41%.
The average wind speed is of
12.1 kph.
April is generally a very mild month. The average temperature is of
17.4 °C, with a minimum of
12.6 °C and a maximum of
22.3 °C.
On the coldest nights of the month, the temperature usually drops to around
4.5 °C. However, it dropped to
-2.6 °C in April 2014.
On the warmest days of the month, the temperature usually reaches around
29 °C. However, it reached
33.4 °C in April 2008.
Precipitation amounts to
34.8 mm, distributed over 5 days.
The day lasts on average 13 hours and 5 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 37%.
The average wind speed is of
12.5 kph.
May is generally a warm to hot month. The average temperature is of
22.9 °C, with a minimum of
17.6 °C and a maximum of
28.2 °C.
On the coldest nights of the month, the temperature usually drops to around
11 °C. However, it dropped to
2.4 °C in May 1992.
On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
37 °C in May 2020.
Precipitation amounts to
14 mm, distributed over 4 days.
The day lasts on average 14 hours and 5 minutes. So the days are long.
There are on average 9 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 30%. Hence, the air is normally dry.
The average wind speed is of
13.2 kph.
June is generally a very hot month. The average temperature is of
28.4 °C, with a minimum of
22.5 °C and a maximum of
34.3 °C.
On the coldest nights of the month, the temperature usually drops to around
15.5 °C. However, it dropped to
11 °C in June 2000.
On the warmest days of the month, the temperature usually reaches around
38.5 °C. However, it reached
42.2 °C in June 2015.
Precipitation amounts to only
2.3 mm, and all occurs in one day.
The day lasts on average 14 hours and 30 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 11.5 hours of sunshine per day. So, the sun shines 78% of the time.
The average humidity is 23%. Hence, the air is normally dry.
The average wind speed is of
11.9 kph.
July, the hottest month of the year, is generally a very hot month. The average temperature is of
31 °C, with a minimum of
25.2 °C and a maximum of
36.9 °C.
On the coldest nights of the month, the temperature usually drops to around
19.5 °C. However, it dropped to
16.6 °C in July 2017.
On the warmest days of the month, the temperature usually reaches around
41 °C. However, it reached
42.6 °C in July 2008.
Precipitation amounts to only
2.3 mm, distributed over 0 days.
The day lasts on average 14 hours and 20 minutes. So the days are long.
There are on average 11 hours of sunshine per day. So, the sun shines 77% of the time.
The average humidity is 24%. Hence, the air is normally dry.
The average wind speed is of
10.8 kph.
August is generally a very hot month. The average temperature is of
30.2 °C, with a minimum of
24.6 °C and a maximum of
35.8 °C.
On the coldest nights of the month, the temperature usually drops to around
19.5 °C. However, it dropped to
14 °C in August 2011.
On the warmest days of the month, the temperature usually reaches around
39.5 °C. However, it reached
42 °C in August 2005.
Precipitation amounts to only
1.4 mm, distributed over 0 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 11 hours of sunshine per day. So, the sun shines 83% of the time.
The average humidity is 25%. Hence, the air is normally dry.
The average wind speed is of
9.3 kph.
September is generally a warm to hot month. The average temperature is of
26.2 °C, with a minimum of
20.7 °C and a maximum of
31.6 °C.
On the coldest nights of the month, the temperature usually drops to around
14.5 °C. However, it dropped to
10.8 °C in September 2009.
On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
38 °C in September 2016.
Precipitation amounts to only
0.9 mm, distributed over 0 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 82% of the time.
The average humidity is 27%. Hence, the air is normally dry.
The average wind speed is of
9.1 kph.
October is generally a warm month. The average temperature is of
19.7 °C, with a minimum of
14.8 °C and a maximum of
24.6 °C.
On the coldest nights of the month, the temperature usually drops to around
9 °C. However, it dropped to
5 °C in October 2011.
On the warmest days of the month, the temperature usually reaches around
30.5 °C. However, it reached
33.4 °C in October 2002.
Precipitation amounts to
13.6 mm, distributed over 2 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 73% of the time.
The average humidity is 36%.
The average wind speed is of
8.4 kph.
November is generally a mild month. The average temperature is of
11.8 °C, with a minimum of
7.8 °C and a maximum of
15.7 °C.
On the coldest nights of the month, the temperature usually drops to around
1.5 °C. However, it dropped to
-7.2 °C in November 2016.
On the warmest days of the month, the temperature usually reaches around
22.5 °C. However, it reached
26.6 °C in November 2012.
Precipitation amounts to
30.9 mm, distributed over 5 days.
The day lasts on average 10 hours and 20 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 49%.
The average wind speed is of
7.5 kph.
December is generally a quite mild month. The average temperature is of
6.7 °C, with a minimum of
3.2 °C and a maximum of
10.2 °C.
On the coldest nights of the month, the temperature usually drops to around
-2.5 °C. However, it dropped to
-8.6 °C in December 1994.
On the warmest days of the month, the temperature usually reaches around
16.5 °C. However, it reached
21.2 °C in December 1991.
Precipitation amounts to
31.8 mm, distributed over 5 days.
The day lasts on average 9 hours and 50 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 5.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 58%.
The average wind speed is of
6.7 kph.