January 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).

Temperature

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).

Humidity

In January, the average relative humidity is 50%.

Rainfall

In Tehran, Iran, during January, the rain falls for 7.8 days and regularly aggregates up to 21mm (0.83") of precipitation. Throughout the year, in Tehran, Iran, there are 93.2 rainfall days, and 244mm (9.61") of precipitation is accumulated.

Snowfall

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

Daylight

In January, the average length of the day in Tehran is 10h and 4min.
On the first day of the month, sunrise is at 07:14 and sunset at 17:01. On the last day of January, in Tehran, sunrise is at 07:05 and sunset at 17:30 +0330.

Sunshine

The average sunshine in January in Tehran is 7.2h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Tehran. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Tehran?

The coldest month 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).

What is the temperature in January in Tehran?

The average high-temperature, in January, in Tehran, is 5.8°C (42.4°F), while the average low-temperature is -2.3°C (27.9°F).

What is the average humidity in January in Tehran?

In January, the average relative humidity is 50%.

How much does it rain in Tehran in January?

In Tehran, in January, during 7.8 rainfall days, 21mm (0.83") of precipitation is typically accumulated.

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 many days does it snow in January in Tehran?

In Tehran, Iran, in January, snow falls for 3.3 days, with typically accumulated 27mm (1.06") of snow.

What is the average length of the day in January in Tehran?

In Tehran, Iran, the average day length in January is 10h and 4min.

What time are sunrise and sunset in January in Tehran?

In January, on the first day of the month, sunrise is at 07:14 and sunset at 17:01. On the last day of the month, in Tehran, sunrise is at 07:05 and sunset at 17:30 +0330.

How long on average sun shines in January in Tehran?

In January, the average sunshine duration in Tehran, Iran, is 7.2h.

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

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

What is the UV index intensity in January in Tehran?

In January, the average daily maximum UV index in Tehran, Iran, is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in January
Tehran, Iran

Average temperature in January - Tehran, Iran
  • Average high temperature in January: 5.8°C

The warmest month (with the highest average high temperature) is July (33.8°C).
The month with the lowest average high temperature is January (5.8°C).

  • Average low temperature in January: -2.3°C

The month with the highest average low temperature is July (24.3°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).

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Average pressure in January
Tehran, Iran

Average pressure in January - Tehran, Iran
  • Average pressure in January: 1020.1mbar

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 in January
Tehran, Iran

Average wind speed in January - Tehran, Iran
  • Average wind speed in January: 6.6km/h

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 humidity in January
Tehran, Iran

Average humidity in January - Tehran, Iran
  • Average humidity in January: 50%

The month with the highest relative humidity is February (52%).
The month with the lowest relative humidity is July (19%).

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Average rainfall in January
Tehran, Iran

Average rainfall in January - Tehran, Iran
  • Average rainfall in January: 21mm

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 in January
Tehran, Iran

Average rainfall days in January - Tehran, Iran
  • Average rainfall days in January: 7.8 days

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 in January
Tehran, Iran

Average snowfall in January - Tehran, Iran
  • Average snowfall in January: 27mm

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 in January
Tehran, Iran

Average snowfall days in January - Tehran, Iran
  • Average snowfall days in January: 3.3 days

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 in January /
Average sunshine in January
Tehran, Iran

Average daylight in January / Average sunshine in January - Tehran, Iran
  • Average daylight in January: 10h and 4min

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).

  • Average sunshine in January: 7h and 12min

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 in January
Tehran, Iran

Average sunshine days in January - Tehran, Iran
  • Average sunshine days in January: 17.9 days

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 in January
Tehran, Iran

Average UV index in January - Tehran, Iran
  • Average UV index in January: 2

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 cloud cover in January
Tehran, Iran

Average cloud cover in January - Tehran, Iran
  • Average cloud cover in January: 19

The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is September (Cloud cover 4).

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Average visibility in January
Tehran, Iran

Average visibility in January - Tehran, Iran
  • Average visibility in January: 10km

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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