Tehran climate guide

Temperature in Tehran (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
5°C maximum daytime temperature in January in Tehran5
8°C maximum daytime temperature in February in Tehran8
14°C maximum daytime temperature in March in Tehran14
20°C maximum daytime temperature in April in Tehran20
26°C maximum daytime temperature in May in Tehran26
32°C maximum daytime temperature in June in Tehran32
35°C maximum daytime temperature in July in Tehran35
34°C maximum daytime temperature in August in Tehran34
30°C maximum daytime temperature in September in Tehran30
22°C maximum daytime temperature in October in Tehran22
15°C maximum daytime temperature in November in Tehran15
8°C maximum daytime temperature in December in Tehran8
Min temperature (night-time)
-3°C minimum night-time temperature in January in Tehran-3
-1°C minimum night-time temperature in February in Tehran-1
3°C minimum night-time temperature in March in Tehran3
9°C minimum night-time temperature in April in Tehran9
14°C minimum night-time temperature in May in Tehran14
19°C minimum night-time temperature in June in Tehran19
22°C minimum night-time temperature in July in Tehran22
21°C minimum night-time temperature in August in Tehran21
17°C minimum night-time temperature in September in Tehran17
11°C minimum night-time temperature in October in Tehran11
5°C minimum night-time temperature in November in Tehran5
0°C minimum night-time temperature in December in Tehran0

Sunshine & Daylight in Tehran

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Tehran10
11 hours of daylight per day in February in Tehran11
12 hours of daylight per day in March in Tehran12
13 hours of daylight per day in April in Tehran13
14 hours of daylight per day in May in Tehran14
15 hours of daylight per day in June in Tehran15
14 hours of daylight per day in July in Tehran14
13 hours of daylight per day in August in Tehran13
12 hours of daylight per day in September in Tehran12
11 hours of daylight per day in October in Tehran11
10 hours of daylight per day in November in Tehran10
10 hours of daylight per day in December in Tehran10

Rainfall in Tehran

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
10 days with some rainfall in January in Tehran10
9 days with some rainfall in February in Tehran9
11 days with some rainfall in March in Tehran11
11 days with some rainfall in April in Tehran11
10 days with some rainfall in May in Tehran10
3 days with some rainfall in June in Tehran3
2 days with some rainfall in July in Tehran2
2 days with some rainfall in August in Tehran2
2 days with some rainfall in September in Tehran2
6 days with some rainfall in October in Tehran6
6 days with some rainfall in November in Tehran6
9 days with some rainfall in December in Tehran9
Average monthly rainfall (mm)
37 mm monthly rainfall in January in Tehran37
35 mm monthly rainfall in February in Tehran35
40 mm monthly rainfall in March in Tehran40
33 mm monthly rainfall in April in Tehran33
22 mm monthly rainfall in May in Tehran22
6 mm monthly rainfall in June in Tehran6
5 mm monthly rainfall in July in Tehran5
3 mm monthly rainfall in August in Tehran3
3 mm monthly rainfall in September in Tehran3
17 mm monthly rainfall in October in Tehran17
22 mm monthly rainfall in November in Tehran22
36 mm monthly rainfall in December in Tehran36

More climate for Tehran

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 3 (Moderate) in January in Tehran3
UV (maximum) index 4 (Moderate) in February in Tehran4
UV (maximum) index 6 (High) in March in Tehran6
UV (maximum) index 8 (Very High) in April in Tehran8
UV (maximum) index 11 (Extreme) in May in Tehran11
UV (maximum) index 11+ (Extreme) in June in Tehran11
UV (maximum) index 11+ (Extreme) in July in Tehran11
UV (maximum) index 11 (Extreme) in August in Tehran11
UV (maximum) index 9 (Very High) in September in Tehran9
UV (maximum) index 6 (High) in October in Tehran6
UV (maximum) index 3 (Moderate) in November in Tehran3
UV (maximum) index 2 (Low) in December in Tehran2
Heat & Humidity
No heat & humidity in January in Tehran0
No heat & humidity in February in Tehran0
No heat & humidity in March in Tehran0
No heat & humidity in April in Tehran0
Low heat & humidity in May in TehranL
High heat & humidity in June in TehranH
High heat & humidity in July in TehranH
High heat & humidity in August in TehranH
Moderate heat & humidity in September in TehranM
No heat & humidity in October in Tehran0
No heat & humidity in November in Tehran0
No heat & humidity in December in Tehran0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

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The climate guide for Tehran, Iran shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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