December weather forecastOlmillos de Castro, Spain
December
Weather in December
The first month of the winter, December, is also a frosty month in Olmillos de Castro, Spain, with an average temperature fluctuating between 2.7°C (36.9°F) and 9.8°C (49.6°F).Temperature
The shift into December reveals an average high-temperature of a frosty 9.8°C (49.6°F), closely mirroring November's climate. Olmillos de Castro encounters a steady low-temperature average of 2.7°C (36.9°F) throughout the month of December.Humidity
In Olmillos de Castro, the average relative humidity in December is 80%.Rainfall
In December, in Olmillos de Castro, the rain falls for 8.4 days. Throughout December, 30mm (1.18") of precipitation is accumulated. In Olmillos de Castro, during the entire year, the rain falls for 105.3 days and collects up to 257mm (10.12") of precipitation.Snowfall
January through March, November and December are months with snowfall in Olmillos de Castro, Spain. December is the month with the most snowfall. Snow falls for 0.3 days and accumulates 12mm (0.47") of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Olmillos de Castro.On the first day of the month, sunrise is at 08:31 and sunset at 17:54. On the last day of December, in Olmillos de Castro, sunrise is at 08:50 and sunset at 18:03 CET.
Sunshine
December has the least sunshine of the year in Olmillos de Castro, with an average of 5.8h of sunshine.UV index
February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Olmillos de Castro, Spain
- Average high temperature in December: 9.8°C
The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is January (9°C).
- Average low temperature in December: 2.7°C
The month with the highest average low temperature is July (16.1°C).
The coldest months (with the lowest average low temperature) are January and February (2°C).
Average pressure in December
Olmillos de Castro, Spain
- Average pressure in December: 1023.3mbar
The month with the highest atmospheric pressure is December (1023.3mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in December
Olmillos de Castro, Spain
- Average wind speed in December: 13.8km/h
The windiest month (with the highest average wind speed) is February (16.7km/h).
The calmest month (with the lowest average wind speed) is September (11.6km/h).
Average humidity in December
Olmillos de Castro, Spain
- Average humidity in December: 80%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (44%).
Average rainfall in December
Olmillos de Castro, Spain
- Average rainfall in December: 30mm
The wettest month (with the highest rainfall) is April (37mm).
The driest month (with the least rainfall) is August (8mm).
Average rainfall days in December
Olmillos de Castro, Spain
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is April (14.8 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in December
Olmillos de Castro, Spain
- Average snowfall in December: 12mm
The month with the highest snowfall is December (12mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Olmillos de Castro, Spain
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Olmillos de Castro, Spain
- Average daylight in December: 9h and 12min
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 12min).
- Average sunshine in December: 5h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in December
Olmillos de Castro, Spain
- Average sunshine days in December: 21.7 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is April (13.7 days).
Average UV index in December
Olmillos de Castro, Spain
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in December
Olmillos de Castro, Spain
- Average cloud cover in December: 41
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in December
Olmillos de Castro, Spain
- Average visibility in December: 9km
The months with the highest visibility are February, March, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, April, November and December (9km).





