December weather forecastSienes, Spain
December
Weather in December
The first month of the winter, December, is still a chilly month in Sienes, Spain, with an average temperature ranging between min 0.5°C (32.9°F) and max 7.2°C (45°F).Temperature
Sienes registers an average high-temperature of a still frosty 7.2°C (45°F) at the commencement of December, closely related to the preceding month. Sienes observes an average low-temperature of 0.5°C (32.9°F) during December nights.Humidity
In December, the average relative humidity is 79%.Rainfall
The month with the least rainfall in Sienes is December, when the rain falls for 6.9 days and typically collects 16mm (0.63") of precipitation.Snowfall
January through May, November and December are months with snowfall. In Sienes, during December, snow falls for 2.5 days and regularly aggregates up to 28mm (1.1") of snow. Throughout the year, in Sienes, there are 26 snowfall days, and 306mm (12.05") of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Sienes.On the first day of December in Sienes, sunrise is at 08:17 and sunset at 17:42. On the last day of the month, sunrise is at 08:35 and sunset at 17:51 CET.
Sunshine
December has the least sunshine of the year, with an average of 6h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sienes, Spain
- Average high temperature in December: 7.2°C
The warmest month (with the highest average high temperature) is August (26.6°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in December: 0.5°C
The month with the highest average low temperature is August (13.5°C).
The coldest months (with the lowest average low temperature) are January and February (-0.5°C).
Average pressure in December
Sienes, Spain
- 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 April (1015.2mbar).
Average wind speed in December
Sienes, Spain
- Average wind speed in December: 13.3km/h
The windiest month (with the highest average wind speed) is February (16.3km/h).
The calmest months (with the lowest average wind speed) are July and August (9.2km/h).
Average humidity in December
Sienes, Spain
- Average humidity in December: 79%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (55%).
Average rainfall in December
Sienes, Spain
- Average rainfall in December: 16mm
The wettest month (with the highest rainfall) is June (53mm).
The driest month (with the least rainfall) is December (16mm).
Average rainfall days in December
Sienes, Spain
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is April (15.9 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in December
Sienes, Spain
- Average snowfall in December: 28mm
The month with the highest snowfall is January (78mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Sienes, Spain
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sienes, Spain
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Sienes, Spain
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in December
Sienes, Spain
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Sienes, Spain
- Average cloud cover in December: 37
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
Sienes, Spain
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
