Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The arrival of December in Tehran signals a subtle shift in temperature, down from a fresh 11.7°C (53.1°F) in November to a chilly 7.6°C (45.7°F). During the nights in December, Tehran experiences a consistent average temperature of -0.1°C (31.8°F).Humidity
The average relative humidity in December in Tehran, Iran, is 48%.Rainfall
In Tehran, Iran, during December, the rain falls for 7.7 days and regularly aggregates up to 19mm (0.75") of precipitation. Throughout the year, there are 93.2 rainfall days, and 244mm (9.61") of precipitation is accumulated.Snowfall
Months with snowfall in Tehran are January through March, November and December. In Tehran, in December, snow falls for 0.9 days, with typically accumulated 5mm (0.2") of snow. In Tehran, during the entire year, snow falls for 8.5 days and aggregates up to 80mm (3.15") of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Tehran.On the first day of December in Tehran, sunrise is at 06:55 and sunset at 16:51. On the last day of the month, sunrise is at 07:13 and sunset at 17:01 +0330.
Sunshine
In Tehran, the average sunshine in December is 7.2h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 2 in December translates into this advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What are the temperatures in Tehran in December?
What is the average humidity in December in Tehran?
How much does it rain in Tehran in December?
How many days does it snow in December in Tehran?
What is the month with the shortest days in Tehran?
How many hours of daylight does Tehran have in December?
What time are sunrise and sunset in December in Tehran?
How many hours of sunshine does Tehran have in December?
What is the month with the lowest UV index in Tehran?
What is the UV index reading in December in Tehran?
Average temperature in December
Tehran, Iran
- Average high temperature in December: 7.6°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 December: -0.1°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).
Average pressure in December
Tehran, Iran
- Average pressure in December: 1021.6mbar
The month with the highest atmospheric pressure is December (1021.6mbar).
The month with the lowest atmospheric pressure is July (1007.1mbar).
Average wind speed in December
Tehran, Iran
- Average wind speed in December: 5.5km/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).
Average humidity in December
Tehran, Iran
- Average humidity in December: 48%
The month with the highest relative humidity is February (52%).
The month with the lowest relative humidity is July (19%).
Average rainfall in December
Tehran, Iran
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is April (38mm).
The driest month (with the least rainfall) is September (6mm).
Average rainfall days in December
Tehran, Iran
- Average rainfall days in December: 7.7 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).
Average snowfall in December
Tehran, Iran
- Average snowfall in December: 5mm
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).
Average snowfall days in December
Tehran, Iran
- Average snowfall days in December: 0.9 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).
Average daylight in December /
Average sunshine in December
Tehran, Iran
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 7h and 1min
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).
Average sunshine days in December
Tehran, Iran
- Average sunshine days in December: 19 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).
Average UV index in December
Tehran, Iran
- Average UV index in December: 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).
Average cloud cover in December
Tehran, Iran
- Average cloud cover in December: 17
The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is September (Cloud cover 4).
Average visibility in December
Tehran, Iran
- Average visibility in December: 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).
Tehran, Iran
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