December weather forecastMashhad, Iran
December
Weather in December
December invites true winter with temperature narrows to a span from 0.2°C (32.4°F) to 9.1°C (48.4°F), the lowest range in the year. Increased snowy days, coupled with 6mm (0.24") of rainfall, make the weather feel colder and more humid that is typical for this winter month. With reduced sunshine hours of 9.7 a day, the UV index slides down to 2, reflecting the weak, winter sun. The declining wind speed matches the freezing conditions prevalent towards year’s end. The atmospheric pressure remains buoyant, despite the drop in temperatures, measuring up to a sturdy 1022.9 mb.Temperature
As December begins, there is a minor decrease in the average high-temperature, softly falling from a cool 12.5°C (54.5°F) in November to a chilly 9.1°C (48.4°F). During December, the average low-temperature in Mashhad is a cold 0.2°C (32.4°F).Humidity
In Mashhad, the average relative humidity in December is 51%.Rainfall
In Mashhad, during December, the rain falls for 4.5 days and regularly aggregates up to 6mm (0.24") of precipitation. In Mashhad, during the entire year, the rain falls for 63.6 days and collects up to 158mm (6.22") of precipitation.Snowfall
January through April, November and December are months with snowfall. In Mashhad, during December, snow falls for 2.5 days and regularly aggregates up to 20mm (0.79") of snow. Throughout the year, there are 15.3 snowfall days, and 268mm (10.55") of snow is accumulated.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 06:24 and sunset at 16:16. On the last day of December, in Mashhad, sunrise is at 06:42 and sunset at 16:26 +0330.
Sunshine
In Mashhad, the average sunshine in December is 7h.UV index
December is the month with the lowest UV index in Mashhad, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mashhad, Iran
- Average high temperature in December: 9.1°C
The warmest month (with the highest average high temperature) is July (32.1°C).
The month with the lowest average high temperature is January (7.5°C).
- Average low temperature in December: 0.2°C
The month with the highest average low temperature is July (20.9°C).
The coldest month (with the lowest average low temperature) is January (-1°C).
Average pressure in December
Mashhad, Iran
- Average pressure in December: 1022.9mbar
The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is July (1007.2mbar).
Average wind speed in December
Mashhad, Iran
- Average wind speed in December: 8.2km/h
The windiest month (with the highest average wind speed) is July (15.7km/h).
The calmest month (with the lowest average wind speed) is November (7.8km/h).
Average humidity in December
Mashhad, Iran
- Average humidity in December: 51%
The month with the highest relative humidity is February (59%).
The month with the lowest relative humidity is July (20%).
Average rainfall in December
Mashhad, Iran
- Average rainfall in December: 6mm
The wettest month (with the highest rainfall) is April (35mm).
The driest months (with the least rainfall) are July, August and September (0mm).
Average rainfall days in December
Mashhad, Iran
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is March (12 days).
The month with the least rainy days is August (0.3 days).
Average snowfall in December
Mashhad, Iran
- Average snowfall in December: 20mm
The month with the highest snowfall is February (126mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Mashhad, Iran
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mashhad, Iran
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 7h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 30min).
The month with the least sunshine is February (Average sunshine: 6h and 54min).
Average sunshine days in December
Mashhad, Iran
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is August (30.4 days).
The month with the least sunshine days is April (14.8 days).
Average UV index in December
Mashhad, Iran
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Mashhad, Iran
- Average cloud cover in December: 18
The month with the most cloud cover is February (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 2).
Average visibility in December
Mashhad, 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).





