Tehran
Iran
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Tehran, Iran

A golden illusion of the front view of the Zaid Mosque in Tehran, Iran, under gray skies
A golden illusion of the front view of the Zaid Mosque in Tehran, Iran, under gray skies
January, the same as December, in Tehran, Iran, is a frosty winter month, with average temperature varying between 8.3°C (46.9°F) and 1.2°C (34.2°F). With an average high-temperature of 8.3°C (46.9°F) and an average low-temperature of 1.2°C (34.2°F), January is the coldest month. Weather in January »
The last month of the winter, February, is a cool month in Tehran, Iran, with average temperature varying between 3.3°C (37.9°F) and 11.1°C (52°F). In Tehran, the average high-temperature is essentially the same as in January - a cool 11.1°C (52°F). Weather in February »

The first month of the spring, March, is an enjoyable month in Tehran, Iran, with average temperature ranging between min 8°C (46.4°F) and max 17.2°C (63°F). In March, the average high-temperature rises, from a fresh 11.1°C (52°F) in February, to an enjoyable 17.2°C (63°F). Weather in March »

April in Tehran, Iran, is a pleasant spring month, with average temperature fluctuating between 22.8°C (73°F) and 13.4°C (56.1°F). In April, the average high-temperature increases, from an enjoyable 17.2°C (63°F) in March, to a pleasant 22.8°C (73°F). Weather in April »

The last month of the spring, May, is a moderately hot month in Tehran, Iran, with temperature in the range of an average low of 18.4°C (65.1°F) and an average high of 28.5°C (83.3°F). In Tehran, the average high-temperature increases, from an agreeable 22.8°C (73°F) in April, to a warm 28.5°C (83.3°F). Weather in May »

The first month of the summer, June, is a tropical month in Tehran, Iran, with average temperature varying between 34.5°C (94.1°F) and 23.1°C (73.6°F). In Tehran, the average high-temperature in June rises, from a warm 28.5°C (83.3°F) in May, to a tropical 34.5°C (94.1°F). Weather in June »

July in Tehran, Iran, is a very hot summer month, with average temperature fluctuating between 36.8°C (98.2°F) and 25.7°C (78.3°F). With an average high-temperature of 36.8°C (98.2°F) and an average low-temperature of 25.7°C (78.3°F), July is the warmest month. Weather in July »

August, the last month of the summer, in Tehran, is another torrid month, with average temperature fluctuating between 35.9°C (96.6°F) and 24.9°C (76.8°F). In Tehran, Iran, the average high-temperature is essentially the same as in July - a still very hot 35.9°C (96.6°F). Weather in August »

September, the first month of the autumn, in Tehran, is still a hot month, with average temperature ranging between min 21.3°C (70.3°F) and max 31.6°C (88.9°F). In September, the average high-temperature marginally drops, from a very hot 35.9°C (96.6°F) in August, to a hot 31.6°C (88.9°F). Weather in September »

October, the same as September, is another warm autumn month in Tehran, Iran, with average temperature fluctuating between 15.9°C (60.6°F) and 25.4°C (77.7°F). In Tehran, the average high-temperature in October decreases, from a tropical 31.6°C (88.9°F) in September, to a warm 25.4°C (77.7°F). Weather in October »

November, the last month of the autumn, in Tehran, is another mild month, with temperature in the range of an average high of 15.8°C (60.4°F) and an average low of 8°C (46.4°F). In Tehran, Iran, the average high-temperature declines considerably, from a moderately hot 25.4°C (77.7°F) in October, to a mild 15.8°C (60.4°F). Weather in November »

December, the first month of the winter, in Tehran, is still a cool month, with temperature in the range of an average high of 10.4°C (50.7°F) and an average low of 3.3°C (37.9°F). In Tehran, the average high-temperature drops, from a mild 15.8°C (60.4°F) in November, to a cool 10.4°C (50.7°F). Weather in December »

What is the coldest month in Tehran?

With an average high-temperature of 8.3°C (46.9°F) and an average low-temperature of 1.2°C (34.2°F), January is the coldest month.

What is the most humid month in Tehran?

January is the most humid month, with an average relative humidity of 64%.

How many days does it rain in Tehran?

Throughout the year, there are 76.4 rainfall days, and 232.8mm (9.2") of precipitation is accumulated.

When does it snow in Tehran?

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

How many days does it snow in Tehran?

Throughout the year, in Tehran, there are 12.3 snowfall days.

When does it snow the most in Tehran?

The month with the most snowfall days is January when snow falls for 5.1 days.

What is the wettest month in Tehran?

March is the month with the most rainfall. Rain falls for 10.9 days and accumulates 40.8mm (1.6") of precipitation.

When it does not snow in Tehran?

May through October are months without snowfall in Tehran, Iran.

What is the least humid month in Tehran?

The least humid month in Tehran is June, with an average relative humidity of 25%.

When are the longest days in Tehran?

The month with the longest days is June, with an average of 14.5h of daylight.

What are the months with the most sunshine in Tehran?

Months with the most sunshine are June and August, with an average of 11h of sunshine.

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

June and July, with an average maximum UV index of 12, are months with the highest UV index.

What is the warmest month in Tehran?

The warmest month in Tehran, Iran, is July, with an average high-temperature of 36.8°C (98.2°F) and an average low-temperature of 25.7°C (78.3°F).

What is the driest month in Tehran?

The month with the least rainfall in Tehran, Iran, is September when the rain falls for 1 days and typically collects 1.1mm (0") of precipitation.

What is the month with the shortest days in Tehran?

The month with the shortest days in Tehran, Iran, is December, with an average of 9.8h of daylight.

What is the month with the least sunshine in Tehran?

December has the least sunshine of the year in Tehran, Iran, with an average of 4.9h of sunshine.

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

With an average maximum UV index of 2, December is the month with the lowest UV index.
Average rainfall - Tehran, Iran

The wettest month (with the highest rainfall) is March (40.8mm).
The driest month (with the lowest rainfall) is September (1.1mm).

Average rainfall days - Tehran, Iran

The month with the highest number of rainy days is March (10.9 days).
The month with the lowest number of rainy days is September (1 days).

Average snowfall days - Tehran, Iran

The month with the highest number of snowfall days is January (5.1 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Tehran, Iran

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

Months with most sunshine are June and August (Average sunshine: 11h).
The month with least sunshine is December (Average sunshine: 4.9h).