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
December
Weather in December
Temperature
With the arrival of December, Sin notices a mild change in the average high-temperature, sliding from November's refreshing 14.8°C (58.6°F) to a cool 10.9°C (51.6°F). In December, Sin reports a consistent average low-temperature of 1.4°C (34.5°F) during the nights.Humidity
In Sin, the average relative humidity in December is 42%.Rainfall
In Sin, during December, the rain falls for 2.8 days and regularly aggregates up to 5mm (0.2") of precipitation. In Sin, Iran, during the entire year, the rain falls for 36.9 days and collects up to 62mm (2.44") of precipitation.Snowfall
Months with snowfall are January, February, November and December. In Sin, in December, during 0.3 snowfall days, 2mm (0.08") of snow is typically accumulated. In Sin, during the entire year, snow falls for 3.3 days and aggregates up to 34mm (1.34") of snow.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 06:48 and sunset at 16:56. On the last day of the month, sunrise is at 07:05 and sunset at 17:07 +0330.
Sunshine
The months with the least sunshine are January, February, November and December, with an average of 7.4h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, the UV index of 3 transforms into the following advice:
Undertake precautions - Guarding against sun damage is counselled. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Sin?
What is the average length of the day in December?
What time are sunrise and sunset in December in Sin?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Sin, Iran
- Average high temperature in December: 10.9°C
The warmest month (with the highest average high temperature) is July (35.8°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in December: 1.4°C
The month with the highest average low temperature is July (23.6°C).
The coldest month (with the lowest average low temperature) is January (-0.5°C).
Average pressure in December
Sin, Iran
- Average pressure in December: 1020.7mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is July (1005.8mbar).
Average wind speed in December
Sin, Iran
- Average wind speed in December: 5.3km/h
The windiest month (with the highest average wind speed) is July (10.9km/h).
The calmest month (with the lowest average wind speed) is December (5.3km/h).
Average humidity in December
Sin, Iran
- Average humidity in December: 42%
The month with the highest relative humidity is January (45%).
The month with the lowest relative humidity is July (14%).
Average rainfall in December
Sin, Iran
- Average rainfall in December: 5mm
The wettest months (with the highest rainfall) are March, April and May (10mm).
The driest months (with the least rainfall) are July, August and September (0mm).
Average rainfall days in December
Sin, Iran
- Average rainfall days in December: 2.8 days
The month with the highest number of rainy days is April (6.9 days).
The month with the least rainy days is September (0.1 days).
Average snowfall in December
Sin, Iran
- Average snowfall in December: 2mm
The month with the highest snowfall is January (15mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Sin, Iran
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (1.8 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Sin, Iran
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 7h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 18min).
The months with the least sunshine are January, February, November and December (Average sunshine: 7h and 24min).
Average sunshine days in December
Sin, Iran
- Average sunshine days in December: 27.5 days
The months with the most sunshine days are July and August (30.8 days).
The month with the least sunshine days is April (19.8 days).
Average UV index in December
Sin, Iran
- Average UV index in December: 3
The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Sin, Iran
- Average cloud cover in December: 12
The month with the most cloud cover is April (Cloud cover 15).
The month with the least cloud cover is September (Cloud cover 3).
Average visibility in December
Sin, 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).
