Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's advent notes a subtle adjustment in average high-temperature to a frosty 8.9°C (48°F) from November. In the month of December, the nighttime temperature in Castrelos dips to a steady average of 2°C (35.6°F).Humidity
In December, the average relative humidity is 84%.Rainfall
In Castrelos, in December, it is raining for 12.7 days, with typically 70mm (2.76") of accumulated precipitation. Throughout the year, in Castrelos, there are 141.4 rainfall days, and 527mm (20.75") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Castrelos. In Castrelos, in December, during 1 snowfall days, 13mm (0.51") of snow is typically accumulated. Throughout the year, there are 6.4 snowfall days, and 51mm (2.01") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 08:36 and sunset at 17:57. On the last day of December, sunrise is at 08:55 and sunset at 18:06 CET.
Sunshine
The average sunshine in December in Castrelos is 5.2h.UV index
January, 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 hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
What is the average December temperature in Castrelos?
What is the average humidity in December in Castrelos?
How many days does it rain in December in Castrelos?
How much does it snow in Castrelos in December?
What is the month with the shortest days in Castrelos?
How many hours of daylight does Castrelos have in December?
When is the sunrise / sunset in December in Castrelos?
How long on average sun shines in December in Castrelos?
What are the months with the lowest UV index in Castrelos?
How high is the UV index in December in Castrelos?
Average temperature in December
Castrelos, Spain
- Average high temperature in December: 8.9°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in December: 2°C
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is February (1.2°C).
Average pressure in December
Castrelos, Spain
- Average pressure in December: 1022.9mbar
The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in December
Castrelos, Spain
- Average wind speed in December: 8.8km/h
The windiest month (with the highest average wind speed) is March (11.2km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).
Average humidity in December
Castrelos, Spain
- Average humidity in December: 84%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (52%).
Average rainfall in December
Castrelos, Spain
- Average rainfall in December: 70mm
The wettest month (with the highest rainfall) is November (73mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in December
Castrelos, Spain
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is April (17.6 days).
The month with the least rainy days is August (4.2 days).
Average snowfall in December
Castrelos, Spain
- Average snowfall in December: 13mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Castrelos, Spain
- Average snowfall days in December: 1 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
Castrelos, Spain
- Average daylight in December: 9h and 1min
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 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Castrelos, Spain
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is August (24.5 days).
The month with the least sunshine days is April (10.8 days).
Average UV index in December
Castrelos, Spain
- Average UV index in December: 2
The month with the highest UV index is 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
Castrelos, Spain
- Average cloud cover in December: 46
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in December
Castrelos, Spain
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
Castrelos, Spain
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