December weather forecastCastraz, Spain

December

Weather in December

The first month of the winter, December, is still a cool month in Castraz, Spain, with an average temperature varying between 2.3°C (36.1°F) and 10°C (50°F).

Temperature

December's weather displays an average high-temperature of a still fresh 10°C (50°F), slightly varied from November's 12.3°C (54.1°F). December's nights in Castraz observe an average temperature of 2.3°C (36.1°F).

Humidity

In Castraz, the average relative humidity in December is 77%.

Rainfall

In December, in Castraz, the rain falls for 6.6 days. Throughout December, 18mm (0.71") of precipitation is accumulated. In Castraz, during the entire year, the rain falls for 78.8 days and collects up to 174mm (6.85") of precipitation.

Snowfall

January through April, November and December are months with snowfall in Castraz. In Castraz, in December, snow falls for 0.3 days, with typically accumulated 4mm (0.16") of snow. In Castraz, during the entire year, snow falls for 6.8 days and aggregates up to 67mm (2.64") of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 08:30 and sunset at 17:58. On the last day of the month, sunrise is at 08:49 and sunset at 18:07 CET.

Sunshine

With an average of 6.4h of sunshine, December has the least sunshine of the year in Castraz.

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 ordinary individuals.
Note: An average UV index of 2 in December transforms into this advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Frequently asked questions

An average high-temperature, in December, in Castraz, is 10°C (50°F) and the average low-temperature is 2.3°C (36.1°F). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in August is evaluated at 30°C (86°F).

In December, the average relative humidity in Castraz, Spain, is 77%.

In Castraz, Spain, in December, it is raining for 6.6 days, with typically 18mm (0.71") of accumulated precipitation.

In December, in Castraz, Spain, it is snowing for 0.3 days. Throughout December, 4mm (0.16") of snow is accumulated.

December has the shortest days of the year, with an average of 9h and 18min of daylight.

In Castraz, the average day length in December is 9h and 19min.

In December, on the first day of the month, sunrise is at 08:30 and sunset at 17:58. On the last day of the month, in Castraz, sunrise is at 08:49 and sunset at 18:07 CET.

With an average of 6.4h of sunshine, December has the least sunshine of the year in Castraz, Spain.

In Castraz, the average sunshine duration in December is 6.4h.

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe 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
Castraz, Spain

  • Average high temperature in December: 10°C

The warmest months (with the highest average high temperature) are July and August (29.8°C).
The month with the lowest average high temperature is January (8.5°C).

  • Average low temperature in December: 2.3°C

The month with the highest average low temperature is July (15.6°C).
The coldest month (with the lowest average low temperature) is February (1.1°C).

Average pressure in December
Castraz, Spain

  • Average pressure in December: 1023.6mbar

The month with the highest atmospheric pressure is December (1023.6mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

Average wind speed in December
Castraz, Spain

  • Average wind speed in December: 12.8km/h

The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is September (10.3km/h).

Average humidity in December
Castraz, Spain

  • Average humidity in December: 77%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (41%).

Average rainfall in December
Castraz, Spain

  • Average rainfall in December: 18mm

The wettest month (with the highest rainfall) is April (27mm).
The driest months (with the least rainfall) are August and September (5mm).

Average rainfall days in December
Castraz, Spain

  • Average rainfall days in December: 6.6 days

The month with the highest number of rainy days is April (12 days).
The month with the least rainy days is August (2.3 days).

Average snowfall in December
Castraz, Spain

  • Average snowfall in December: 4mm

The month with the highest snowfall is February (23mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Castraz, Spain

  • Average snowfall days in December: 0.3 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
Castraz, Spain

  • Average daylight in December: 9h and 18min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 6h and 24min

The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in December
Castraz, Spain

  • Average sunshine days in December: 23.8 days

The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is April (15 days).

Average UV index in December
Castraz, 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, February, November and December (UV index 2).

Average cloud cover in December
Castraz, Spain

  • Average cloud cover in December: 36

The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 9).

Average visibility in December
Castraz, Spain

  • Average visibility in December: 10km

The months with the highest visibility are February, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, March, April, May and November (9km).