December weather forecastCastropol, Spain
December
Weather in December
December, the first month of the winter in Castropol, is still a cool month, with an average temperature varying between 7.1°C (44.8°F) and 12.5°C (54.5°F).Temperature
As Castropol, Spain, steps into December, the average high-temperature holds at a fresh 12.5°C (54.5°F), hinting at a minor fluctuation from the prior month. Throughout the month of December, the nighttime temperature dips to an average of 7.1°C (44.8°F).Humidity
The average relative humidity in December in Castropol is 80%.Rainfall
In Castropol, during December, the rain falls for 15.1 days and regularly aggregates up to 67mm (2.64") of precipitation. Throughout the year, there are 185.8 rainfall days, and 684mm (26.93") of precipitation is accumulated.Snowfall
In Castropol, snow does not fall in January, March through December.Sea temperature
In Castropol, in December, the average water temperature is 14.3°C (57.7°F).Note: Dipping into 14.3°C (57.7°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.
Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Castropol, Spain.On the first day of the month, sunrise is at 08:41 and sunset at 17:52. On the last day of December, sunrise is at 09:01 and sunset at 18:01 CET.
Sunshine
The month with the least sunshine is December, with an average of 5h of sunshine.UV index
In Castropol, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 3 in December interprets into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Castropol, Spain
- Average high temperature in December: 12.5°C
The warmest month (with the highest average high temperature) is August (22.4°C).
The month with the lowest average high temperature is January (11.3°C).
- Average low temperature in December: 7.1°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (5.6°C).
Average pressure in December
Castropol, Spain
- Average pressure in December: 1021.4mbar
The month with the highest atmospheric pressure is December (1021.4mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in December
Castropol, Spain
- Average wind speed in December: 13.3km/h
The windiest month (with the highest average wind speed) is February (14.4km/h).
The calmest month (with the lowest average wind speed) is August (9km/h).
Average humidity in December
Castropol, Spain
- Average humidity in December: 80%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (78%).
Average rainfall in December
Castropol, Spain
- Average rainfall in December: 67mm
The wettest month (with the highest rainfall) is November (108mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in December
Castropol, Spain
- Average rainfall days in December: 15.1 days
The month with the highest number of rainy days is January (19.5 days).
The month with the least rainy days is September (11.6 days).
Average snowfall in December
Castropol, Spain
- Average snowfall in December: 0mm
The month with the highest snowfall is February (3mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Castropol, Spain
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in December
Castropol, Spain
- Average sea temperature in December: 14.3°C
The best month for swimming (with the highest average sea temperature) is August (19.7°C).
The coldest month (with the lowest average sea temperature) is March (12.8°C).
Average daylight in December /
Average sunshine in December
Castropol, Spain
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Castropol, Spain
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is November (7.7 days).
Average UV index in December
Castropol, Spain
- Average UV index in December: 3
The months with the highest UV index are May, June, July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in December
Castropol, Spain
- Average cloud cover in December: 45
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is October (Cloud cover 40).
Average visibility in December
Castropol, Spain
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, October, November and December (9km).
The months with the lowest visibility are May, June, July, August and September (8km).





