December weather forecastBoltaña, Spain
December
Weather in December
December, the first month of the winter in Boltaña, is also a frosty month, with an average temperature ranging between max 7.8°C (46°F) and min -0.2°C (31.6°F).Temperature
During December, the average high-temperature is a frosty 7.8°C (46°F), maintaining a close resemblance to that of the preceding month. During December, Boltaña records a consistent average nighttime temperature of -0.2°C (31.6°F).Humidity
In Boltaña, the average relative humidity in December is 73%.Rainfall
In Boltaña, in December, it is raining for 4.7 days, with typically 9mm (0.35") of accumulated precipitation. In Boltaña, during the entire year, the rain falls for 102.4 days and collects up to 258mm (10.16") of precipitation.Snowfall
January through March, November and December are months with snowfall in Boltaña. In Boltaña, during December, snow falls for 0.7 days and regularly aggregates up to 4mm (0.16") of snow. Throughout the year, there are 7 snowfall days, and 61mm (2.4") of snow is accumulated.Daylight
The month with the shortest days in Boltaña, Spain, is December, with an average of 9h and 6min of daylight.On the first day of December in Boltaña, Spain, sunrise is at 08:09 and sunset at 17:27. On the last day of the month, sunrise is at 08:29 and sunset at 17:36 CET.
Sunshine
The average sunshine in December in Boltaña is 6.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Boltaña. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Opt for tightly woven and loose clothing to enhance protection from the Sun. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Boltaña, Spain
- Average high temperature in December: 7.8°C
The warmest month (with the highest average high temperature) is July (26.8°C).
The month with the lowest average high temperature is January (6.5°C).
- Average low temperature in December: -0.2°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (-1.7°C).
Average pressure in December
Boltaña, Spain
- 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 April (1015.2mbar).
Average wind speed in December
Boltaña, Spain
- Average wind speed in December: 7.5km/h
The windiest month (with the highest average wind speed) is February (9.1km/h).
The calmest month (with the lowest average wind speed) is September (6.6km/h).
Average humidity in December
Boltaña, Spain
- Average humidity in December: 73%
The months with the highest relative humidity are January and November (74%).
The month with the lowest relative humidity is July (56%).
Average rainfall in December
Boltaña, Spain
- Average rainfall in December: 9mm
The wettest month (with the highest rainfall) is August (31mm).
The driest month (with the least rainfall) is February (8mm).
Average rainfall days in December
Boltaña, Spain
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is May (12 days).
The month with the least rainy days is December (4.7 days).
Average snowfall in December
Boltaña, Spain
- Average snowfall in December: 4mm
The month with the highest snowfall is February (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Boltaña, Spain
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is January (2.1 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
Boltaña, Spain
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 6h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in December
Boltaña, Spain
- Average sunshine days in December: 25.1 days
The month with the most sunshine days is December (25.1 days).
The month with the least sunshine days is April (15 days).
Average UV index in December
Boltaña, Spain
- Average UV index in December: 2
The months with the highest UV index are June and 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
Boltaña, Spain
- Average cloud cover in December: 23
The month with the most cloud cover is April (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in December
Boltaña, Spain
- Average visibility in December: 10km
The months with the highest visibility are February, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, March, April and November (9km).





