December weather forecastCastro Caldelas, Spain
December
Weather in December
The first month of the winter, December, is also a fresh month in Castro Caldelas, Spain, with temperature in the range of an average high of 10.5°C (50.9°F) and an average low of 3.4°C (38.1°F).Temperature
The transition from November to December sees an average high-temperature of a still cool 10.5°C (50.9°F), indicating a minor variance from the prior month. In Castro Caldelas, December's nights observe an average temperature dip to an icy 3.4°C (38.1°F).Humidity
The average relative humidity in December is 87%.Rainfall
The wettest months in Castro Caldelas are January and December, with an average 97mm (3.82") of rainfall.Snowfall
February, April through December are months without snowfall in Castro Caldelas.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:39 and sunset at 17:58. On the last day of December, in Castro Caldelas, sunrise is at 08:58 and sunset at 18:07 CET.
Sunshine
In Castro Caldelas, the average sunshine in December is 4.9h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 2 in December transforms into this advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Castro Caldelas, Spain
- Average high temperature in December: 10.5°C
The warmest month (with the highest average high temperature) is August (26.9°C).
The month with the lowest average high temperature is January (9.2°C).
- Average low temperature in December: 3.4°C
The months with the highest average low temperature are July and August (12.3°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).
Average pressure in December
Castro Caldelas, Spain
- Average pressure in December: 1022.3mbar
The month with the highest atmospheric pressure is December (1022.3mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in December
Castro Caldelas, Spain
- Average wind speed in December: 7.9km/h
The windiest month (with the highest average wind speed) is February (8.8km/h).
The calmest month (with the lowest average wind speed) is September (6.5km/h).
Average humidity in December
Castro Caldelas, Spain
- Average humidity in December: 87%
The months with the highest relative humidity are January and November (89%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Castro Caldelas, Spain
- Average rainfall in December: 97mm
The wettest months (with the highest rainfall) are January and December (97mm).
The driest month (with the least rainfall) is July (13mm).
Average rainfall days in December
Castro Caldelas, Spain
- Average rainfall days in December: 14.6 days
The month with the highest number of rainy days is January (18 days).
The month with the least rainy days is August (5.7 days).
Average snowfall days in December
Castro Caldelas, Spain
- Average snowfall days in December: 0 days
The months with the highest number of snowfall days are January and March (0.1 days).
The months with the least snowfall days are February, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Castro Caldelas, 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: 4h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Castro Caldelas, Spain
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is August (23.6 days).
The month with the least sunshine days is January (10.8 days).
Average UV index in December
Castro Caldelas, Spain
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Castro Caldelas, Spain
- Average cloud cover in December: 56
The month with the most cloud cover is November (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Castro Caldelas, Spain
- Average visibility in December: 7km
The months with the highest visibility are July, August, September and October (8km).
The months with the lowest visibility are January and November (6km).





