December weather forecastChali Sur, Iran

December

Weather in December

The first month of the winter, December, is also an icy month in Chali Sur, Iran, with an average temperature ranging between max 5.1°C (41.2°F) and min -2.2°C (28°F).

Temperature

As November transitions to December, the average high-temperature falls from a fresh 10.3°C (50.5°F) to a cold 5.1°C (41.2°F). December nights are marked by an average temperature drop to a subzero cold -2.2°C (28°F).

Humidity

The average relative humidity in December in Chali Sur is 65%.

Rainfall

In Chali Sur, in December, during 8 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Chali Sur, Iran, during the entire year, the rain falls for 70.6 days and collects up to 257mm (10.12") of precipitation.

Snowfall

Months with snowfall in Chali Sur, Iran, are January through April, November and December. In Chali Sur, in December, snow falls for 4.3 days, with typically accumulated 117mm (4.61") of snow. Throughout the year, there are 23.5 snowfall days, and 489mm (19.25") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 07:15 and sunset at 17:11. On the last day of the month, sunrise is at 07:33 and sunset at 17:21 +0330.

Sunshine

In December, the average sunshine in Chali Sur is 6.6h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Chali Sur, Iran. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 2 in December leads to these recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.

Frequently asked questions

The high-temperature, in December, in Chali Sur, records 5.1°C (41.2°F), while the low-temperature is -2.2°C (28°F).

In Chali Sur, Iran, the average relative humidity in December is 65%.

In December, in Chali Sur, Iran, the rain falls for 8 days. Throughout December, 36mm (1.42") of precipitation is accumulated.

In Chali Sur, in December, during 4.3 snowfall days, 117mm (4.61") of snow is typically accumulated.

December has the shortest days of the year in Chali Sur, Iran, with an average of 9h and 48min of daylight.

The average day length in December in Chali Sur, Iran, is 9h and 48min.

In December, on the first day of the month, sunrise is at 07:15 and sunset at 17:11. On the last day of the month, in Chali Sur, Iran, sunrise is at 07:33 and sunset at 17:21 +0330.

In December, the average sunshine duration in Chali Sur is 6.6h.

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Chali Sur, Iran.

The average daily maximum UV index in December in Chali Sur is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Chali Sur, Iran

  • Average high temperature in December: 5.1°C

The warmest month (with the highest average high temperature) is July (32.5°C).
The month with the lowest average high temperature is January (2.2°C).

  • Average low temperature in December: -2.2°C

The month with the highest average low temperature is July (17.7°C).
The coldest month (with the lowest average low temperature) is January (-4.7°C).

Average pressure in December
Chali Sur, Iran

  • Average pressure in December: 1021.8mbar

The month with the highest atmospheric pressure is December (1021.8mbar).
The month with the lowest atmospheric pressure is July (1005.7mbar).

Average wind speed in December
Chali Sur, Iran

  • Average wind speed in December: 7.7km/h

The windiest month (with the highest average wind speed) is May (10.9km/h).
The calmest month (with the lowest average wind speed) is December (7.7km/h).

Average humidity in December
Chali Sur, Iran

  • Average humidity in December: 65%

The month with the highest relative humidity is February (73%).
The month with the lowest relative humidity is July (23%).

Average rainfall in December
Chali Sur, Iran

  • Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is March (51mm).
The driest months (with the least rainfall) are August and September (0mm).

Average rainfall days in December
Chali Sur, Iran

  • Average rainfall days in December: 8 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (0.3 days).

Average snowfall in December
Chali Sur, Iran

  • Average snowfall in December: 117mm

The month with the highest snowfall is February (159mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Chali Sur, Iran

  • Average snowfall days in December: 4.3 days

The month with the highest number of snowfall days is January (9 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
Chali Sur, Iran

  • Average daylight in December: 9h and 48min

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: 6h and 36min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 30min).

Average sunshine days in December
Chali Sur, Iran

  • Average sunshine days in December: 20.7 days

The month with the most sunshine days is August (30.3 days).
The month with the least sunshine days is February (15.5 days).

Average UV index in December
Chali Sur, Iran

  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Chali Sur, Iran

  • Average cloud cover in December: 28

The months with the most cloud cover are January and February (Cloud cover 32).
The month with the least cloud cover is September (Cloud cover 3).

Average visibility in December
Chali Sur, Iran

  • Average visibility in December: 9km

The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).