Tehran
Iran
Long-term weather forecast
Long-term weather forecast
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December weather forecast and Climate
Tehran, Iran

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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
  • The average high temperature in December: 10.4°C

The warmest month (with the highest average high temperature) is July (36.8°C).
The month with the lowest average high temperature is January (8.3°C).

  • The average low temperature in December: 3.3°C

The month with the highest average low temperature is July (25.7°C).
The coldest month (with the lowest average low temperature) is January (1.2°C).

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  • The average humidity in December: 62%

The month with the highest relative humidity is January (64%).
The month with the lowest relative humidity is June (25%).

  • The average rainfall in December: 34mm

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

  • The average rainfall days in December: 8.8 days

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).

  • The average snowfall days in December: 2.7 days

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).

  • The average daylight in December: 10h

The month with the longest days is June (Average daylight: 15h).
Months with shortest days are January, November and December (Average daylight: 10h).

  • The average sunshine in December: 4.9h

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

  • The average UV index in December: 2

Months with the highest UV index are June and July (UV index 12).
The month with the lowest UV index is December (UV index 2).

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