Climate and monthly weather forecast
Tehran, Iran

A golden illusion of the front view of the Zaid Mosque in Tehran, Iran
A golden illusion of the front view of the Zaid Mosque in Tehran, Iran

Weather in January

January, like December, in Tehran, Iran, is a wintry winter month, with an average temperature ranging between min -2.3°C (27.9°F) and max 5.8°C (42.4°F). January is the coldest month, with an average high-temperature of 5.8°C (42.4°F) and an average low-temperature of -2.3°C (27.9°F). Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Tehran, Iran, with an average temperature fluctuating between 7.4°C (45.3°F) and -1°C (30.2°F). In February, the average high-temperature is relatively the same as in January - a chilly 7.4°C (45.3°F). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Tehran, Iran, with an average temperature fluctuating between 12.8°C (55°F) and 4°C (39.2°F). In March, the average high-temperature rises from a frosty 7.4°C (45.3°F) in February to a fresh 12.8°C (55°F). Weather in March »

Weather in April

April in Tehran, Iran, is a comfortable spring month, with an average temperature fluctuating between 9.3°C (48.7°F) and 18.1°C (64.6°F). In Tehran, the average high-temperature in April increases from a fresh 12.8°C (55°F) in March to a comfortable 18.1°C (64.6°F). Weather in April »

Weather in May

May, the last month of the spring in Tehran, is a moderately hot month, with temperature in the range of an average low of 15.7°C (60.3°F) and an average high of 25°C (77°F). In Tehran, the average high-temperature in May increases from an enjoyable 18.1°C (64.6°F) in April to a warm 25°C (77°F). Weather in May »

Weather in June

The first month of the summer, June, is a hot month in Tehran, Iran, with an average temperature fluctuating between 31°C (87.8°F) and 20.8°C (69.4°F). In Tehran, the average high-temperature in June rises from a moderately hot 25°C (77°F) in May to a hot 31°C (87.8°F). Weather in June »

Weather in July

July, the same as June, in Tehran, Iran, is another hot summer month, with an average temperature varying between 33.8°C (92.8°F) and 24.3°C (75.7°F). July is the warmest month, with an average high-temperature of 33.8°C (92.8°F) and an average low-temperature of 24.3°C (75.7°F). Weather in July »

Weather in August

The last month of the summer, August, is another tropical month in Tehran, Iran, with an average temperature varying between 22.8°C (73°F) and 32.1°C (89.8°F). In August, the average high-temperature is practically the same as in July - a still hot 32.1°C (89.8°F). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Tehran, Iran, with an average temperature fluctuating between 27.8°C (82°F) and 18.6°C (65.5°F). In Tehran, the average high-temperature in September marginally drops from a hot 32.1°C (89.8°F) in August to a moderately hot 27.8°C (82°F). Weather in September »

Weather in October

October, like September, is another pleasant autumn month in Tehran, Iran, with an average temperature varying between 20.7°C (69.3°F) and 12.1°C (53.8°F). In Tehran, Iran, the average high-temperature in October drops from a moderately hot 27.8°C (82°F) in September to a pleasant 20.7°C (69.3°F). Weather in October »

Weather in November

November, the last month of the autumn in Tehran, is also a fresh month, with an average temperature ranging between max 11.7°C (53.1°F) and min 4.5°C (40.1°F). In November, the average high-temperature plummets from an agreeable 20.7°C (69.3°F) in October to a fresh 11.7°C (53.1°F). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Tehran, Iran, with an average temperature varying between -0.1°C (31.8°F) and 7.6°C (45.7°F). In Tehran, Iran, the average high-temperature in December marginally drops from a fresh 11.7°C (53.1°F) in November to a chilly 7.6°C (45.7°F). Weather in December »
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FAQ

What is the coldest month in Tehran?

The coldest month in Tehran is January, with an average high-temperature of 5.8°C (42.4°F) and an average low-temperature of -2.3°C (27.9°F).

How many days does it rain in Tehran?

In Tehran, during the entire year, the rain falls for 93.2 days and collects up to 244mm (9.61") of precipitation.

When does it snow in Tehran?

January through March, November and December are months with snowfall.

What is the snowiest month in Tehran?

The month with the most snowfall is January, when snow falls for 3.3 days and typically aggregates up to 27mm (1.06") of snow.

How much does it snow in Tehran?

Throughout the year, in Tehran, Iran, there are 8.5 snowfall days, and 80mm (3.15") of snow is accumulated.

What are the months with the lowest UV index in Tehran?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

What is the most humid month in Tehran?

With an average relative humidity of 52%, February is the most humid month in Tehran, Iran.

What is the month with the least sunshine in Tehran?

With an average of 7h of sunshine, February has the least sunshine of the year in Tehran, Iran.

When is Daylight Saving Time (DST) in Tehran?

On Tuesday, 22. March 2022, at 00:00, Daylight Saving Time starts, and the time zone changes from +0330 to +0430. Daylight Saving Time ends on Thursday, 22. September 2022, at 00:00, and the time zone reverts from +0430 to +0330.

What is the wettest month in Tehran?

The month with the most rainfall in Tehran, Iran, is April, when the rain falls for 13.5 days and typically aggregates up to 38mm (1.5") of precipitation.

When it does not snow in Tehran?

April through October are months without snowfall.

When are the longest days in Tehran?

June has the longest days of the year, with an average of 14h and 32min of daylight.

What month has the most sunshine in Tehran?

The month with the most sunshine in Tehran is June, with an average of 12.2h of sunshine.

What is the month with the highest UV index in Tehran?

The months with the highest UV index in Tehran are June through August, with an average maximum UV index of 7.

What is the warmest month in Tehran?

July is the warmest month, with an average high-temperature of 33.8°C (92.8°F) and an average low-temperature of 24.3°C (75.7°F).

What is the least humid month in Tehran?

July is the least humid month in Tehran, with an average relative humidity of 19%.

What is the driest month in Tehran?

The month with the least rainfall is September, when the rain falls for 2.9 days and typically collects 6mm (0.24") of precipitation.

What is the month with the shortest days in Tehran?

The month with the shortest days is December, with an average of 9h and 47min of daylight.

Average pressure
Tehran, Iran

Average pressure - Tehran, Iran

The month with the highest atmospheric pressure is December (1021.6mbar).
The month with the lowest atmospheric pressure is July (1007.1mbar).

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Average wind speed
Tehran, Iran

Average wind speed - Tehran, Iran

The windiest month (with the highest average wind speed) is June (9.4km/h).
The calmest months (with the lowest average wind speed) are November and December (5.5km/h).

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Average rainfall
Tehran, Iran

Average rainfall - Tehran, Iran

The wettest month (with the highest rainfall) is April (38mm).
The driest month (with the least rainfall) is September (6mm).

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Average rainfall days
Tehran, Iran

Average rainfall days - Tehran, Iran

The month with the highest number of rainy days is April (13.5 days).
The month with the least rainy days is September (2.9 days).

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Average snowfall
Tehran, Iran

Average snowfall - Tehran, Iran

The month with the highest snowfall is January (27mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days
Tehran, Iran

Average snowfall days - Tehran, Iran

The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Tehran, Iran

Average daylight / Average sunshine - Tehran, Iran

The month with the longest days is June (Average daylight: 14h and 32min).
The month with the shortest days is December (Average daylight: 9h and 47min).

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is February (Average sunshine: 7h and 0min).

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Average sunshine days
Tehran, Iran

Average sunshine days - Tehran, Iran

The months with the most sunshine days are July and September (22.8 days).
The month with the least sunshine days is April (9.5 days).

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Average UV index
Tehran, Iran

Average UV index - Tehran, Iran

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average visibility
Tehran, Iran

Average visibility - Tehran, Iran

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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