December weather forecast
Castrillo de la Valduerna, Spain

December

Weather in December

December, the first month of the winter in Castrillo de la Valduerna, is still a chilly month, with an average temperature fluctuating between 8.1°C (46.6°F) and 0.9°C (33.6°F).

Temperature

The arrival of December marks a slight shift to an average high-temperature of a still chilly 8.1°C (46.6°F) from November's 9.8°C (49.6°F). An average low-temperature of 0.9°C (33.6°F) is anticipated throughout the nights during December.

Humidity

The average relative humidity in December is 83%.

Rainfall

In Castrillo de la Valduerna, during December, the rain falls for 13.5 days and regularly aggregates up to 74mm (2.91") of precipitation. In Castrillo de la Valduerna, during the entire year, the rain falls for 157.5 days and collects up to 576mm (22.68") of precipitation.

Snowfall

January through April, November and December are months with snowfall in Castrillo de la Valduerna, Spain. In December, in Castrillo de la Valduerna, Spain, it is snowing for 1.3 days. Throughout December, 9mm (0.35") of snow is accumulated. In Castrillo de la Valduerna, during the entire year, snow falls for 8 days and aggregates up to 69mm (2.72") of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 08:34 and sunset at 17:53. On the last day of December, sunrise is at 08:53 and sunset at 18:02 CET.

Sunshine

The month with the least sunshine in Castrillo de la Valduerna is December, with an average of 5.7h of sunshine.

UV index

The months with the lowest UV index in Castrillo de la Valduerna are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 2 during December translates into the following guidance:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. It's recommended to limit sun exposure when its radiation is at its peak during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

What are the temperatures in Castrillo de la Valduerna in December?
December temperatures in Castrillo de la Valduerna vary between a high-temperature of 8.1°C (46.6°F) and a low-temperature of 0.9°C (33.6°F).
What is the average humidity in December in Castrillo de la Valduerna?
In Castrillo de la Valduerna, Spain, the average relative humidity in December is 83%.
How many days does it rain in December in Castrillo de la Valduerna?
In Castrillo de la Valduerna, Spain, during December, the rain falls for 13.5 days and regularly aggregates up to 74mm (2.91") of precipitation.
How many days does it snow in December in Castrillo de la Valduerna?
In Castrillo de la Valduerna, during December, snow falls for 1.3 days and regularly aggregates up to 9mm (0.35") of snow.
What is the month with the shortest days in Castrillo de la Valduerna?
December has the shortest days of the year in Castrillo de la Valduerna, with an average of 9h and 6min of daylight.
What is the average length of the day in December in Castrillo de la Valduerna?
The average day length in December in Castrillo de la Valduerna is 9h and 9min.
What time are sunrise and sunset in December in Castrillo de la Valduerna?
In December, on the first day of the month, sunrise is at 08:34 and sunset at 17:53. On the last day of the month, sunrise is at 08:53 and sunset at 18:02 CET.
What is the month with the least sunshine in Castrillo de la Valduerna?
The month with the least sunshine in Castrillo de la Valduerna, Spain, is December, with an average of 5.7h of sunshine.
How long on average sun shines in December in Castrillo de la Valduerna?
In December, the average sunshine duration is 5.7h.
What are the months with the lowest UV index in Castrillo de la Valduerna?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the UV index intensity in December in Castrillo de la Valduerna?
The average daily maximum UV index in December in Castrillo de la Valduerna is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Castrillo de la Valduerna, Spain
  • Average high temperature in December: 8.1°C

The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (7.3°C).

  • Average low temperature in December: 0.9°C

The months with the highest average low temperature are July and August (10.8°C).
The coldest month (with the lowest average low temperature) is February (-0.3°C).

Average pressure in December
Castrillo de la Valduerna, Spain
  • Average pressure in December: 1022.4mbar

The month with the highest atmospheric pressure is December (1022.4mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

Average wind speed in December
Castrillo de la Valduerna, Spain
  • Average wind speed in December: 8.1km/h

The windiest month (with the highest average wind speed) is February (9km/h).
The calmest month (with the lowest average wind speed) is September (6.4km/h).

Average humidity in December
Castrillo de la Valduerna, Spain
  • Average humidity in December: 83%

The months with the highest relative humidity are January and November (85%).
The month with the lowest relative humidity is August (62%).

Average rainfall in December
Castrillo de la Valduerna, Spain
  • Average rainfall in December: 74mm

The wettest month (with the highest rainfall) is November (91mm).
The driest month (with the least rainfall) is August (15mm).

Average rainfall days in December
Castrillo de la Valduerna, Spain
  • Average rainfall days in December: 13.5 days

The months with the highest number of rainy days are April and November (17.4 days).
The month with the least rainy days is August (5.5 days).

Average snowfall in December
Castrillo de la Valduerna, Spain
  • Average snowfall in December: 9mm

The month with the highest snowfall is February (32mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Castrillo de la Valduerna, Spain
  • Average snowfall days in December: 1.3 days

The month with the highest number of snowfall days is February (2.7 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
Castrillo de la Valduerna, 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 6min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in December
Castrillo de la Valduerna, Spain
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is August (21.7 days).
The month with the least sunshine days is November (8.8 days).

Average UV index in December
Castrillo de la Valduerna, 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, March, November and December (UV index 2).

Average cloud cover in December
Castrillo de la Valduerna, Spain
  • Average cloud cover in December: 46

The month with the most cloud cover is November (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December
Castrillo de la Valduerna, Spain
  • Average visibility in December: 8km

The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are January and November (7km).

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