December weather forecastCástaras, Spain
December
Weather in December
The first month of the winter, December, is still a cool month in Cástaras, Spain, with an average temperature varying between 10.4°C (50.7°F) and 3.5°C (38.3°F).Temperature
During December, Cástaras records an average high-temperature of a still fresh 10.4°C (50.7°F), marking a slight divergence from November's 12.3°C (54.1°F). During December, the average low-temperature is recorded at a wintry 3.5°C (38.3°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 71%.Rainfall
In Cástaras, during December, the rain falls for 7.2 days and regularly aggregates up to 40mm (1.57") of precipitation. In Cástaras, during the entire year, the rain falls for 110.8 days and collects up to 451mm (17.76") of precipitation.Snowfall
January through April, October through December are months with snowfall. In Cástaras, during December, snow falls for 2.3 days and regularly aggregates up to 38mm (1.5") of snow. In Cástaras, during the entire year, snow falls for 19.3 days and aggregates up to 433mm (17.05") of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 08:07 and sunset at 17:56. On the last day of December, in Cástaras, sunrise is at 08:25 and sunset at 18:06 CET.
Sunshine
December has the least sunshine of the year, with an average of 7.3h of sunshine.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cástaras, Spain
- Average high temperature in December: 10.4°C
The warmest month (with the highest average high temperature) is July (28.4°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in December: 3.5°C
The months with the highest average low temperature are July and August (17.9°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in December
Cástaras, Spain
- Average pressure in December: 1022.5mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in December
Cástaras, Spain
- Average wind speed in December: 8.2km/h
The windiest month (with the highest average wind speed) is February (10.1km/h).
The calmest months (with the lowest average wind speed) are August and October (6.5km/h).
Average humidity in December
Cástaras, Spain
- Average humidity in December: 71%
The months with the highest relative humidity are January and December (71%).
The month with the lowest relative humidity is July (41%).
Average rainfall in December
Cástaras, Spain
- Average rainfall in December: 40mm
The wettest month (with the highest rainfall) is November (64mm).
The driest month (with the least rainfall) is July (5mm).
Average rainfall days in December
Cástaras, Spain
- Average rainfall days in December: 7.2 days
The months with the highest number of rainy days are March and April (13.8 days).
The month with the least rainy days is July (4.5 days).
Average snowfall in December
Cástaras, Spain
- Average snowfall in December: 38mm
The month with the highest snowfall is January (149mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Cástaras, Spain
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is January (5.7 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
Cástaras, Spain
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 7h and 18min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 18min).
Average sunshine days in December
Cástaras, Spain
- Average sunshine days in December: 21.8 days
The month with the most sunshine days is July (23.5 days).
The month with the least sunshine days is April (13.8 days).
Average UV index in December
Cástaras, 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 January, November and December (UV index 2).
Average cloud cover in December
Cástaras, Spain
- Average cloud cover in December: 26
The month with the most cloud cover is March (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in December
Cástaras, Spain
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January and November (9km).
