December weather forecastMariana, Spain

December

Weather in December

The first month of the winter, December, is also a frosty month in Mariana, Spain, with temperature in the range of an average low of 1.3°C (34.3°F) and an average high of 8.7°C (47.7°F).

Temperature

December is marked by an average high-temperature of a frosty 8.7°C (47.7°F), almost identical to the preceding month. In Mariana, the nighttime temperature averages to an icy 1.3°C (34.3°F) during December.

Humidity

In December, the average relative humidity in Mariana is 75%.

Rainfall

In Mariana, in December, during 7.6 rainfall days, 28mm (1.1") of precipitation is typically accumulated. Throughout the year, there are 116.2 rainfall days, and 340mm (13.39") of precipitation is accumulated.

Snowfall

Months with snowfall in Mariana are January through May, November and December. In December, it is snowing for 2.1 days. Throughout December, 18mm (0.71") of snow is accumulated. In Mariana, during the entire year, snow falls for 18.1 days and aggregates up to 173mm (6.81") of snow.

Daylight

The month with the shortest days in Mariana is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 08:12 and sunset at 17:43. On the last day of December, sunrise is at 08:30 and sunset at 17:52 CET.

Sunshine

November and December, with an average of 6h of sunshine, are months with the least sunshine.

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 estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

In Mariana, 8.7°C (47.7°F) is the average high-temperature and 1.3°C (34.3°F) is the average low-temperature during December. In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 30°C (86°F).

The average relative humidity in December is 75%.

In December, in Mariana, the rain falls for 7.6 days. Throughout December, 28mm (1.1") of precipitation is accumulated.

In Mariana, in December, snow falls for 2.1 days, with typically accumulated 18mm (0.71") of snow.

December has the shortest days of the year in Mariana, with an average of 9h and 24min of daylight.

In Mariana, the average day length in December is 9h and 22min.

On the first day of December, sunrise is at 08:12 and sunset at 17:43. On the last day of the month, sunrise is at 08:30 and sunset at 17:52 CET.

November and December, with an average of 6h of sunshine, are months with the least sunshine in Mariana.

In Mariana, Spain, the average sunshine duration in December is 6h.

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

In December, the average daily maximum UV index in Mariana, Spain, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
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
Mariana, Spain

  • Average high temperature in December: 8.7°C

The warmest month (with the highest average high temperature) is July (30.2°C).
The month with the lowest average high temperature is January (7.3°C).

  • Average low temperature in December: 1.3°C

The month with the highest average low temperature is July (16.6°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).

Average pressure in December
Mariana, Spain

  • Average pressure in December: 1023mbar

The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1014.9mbar).

Average wind speed in December
Mariana, Spain

  • Average wind speed in December: 11.6km/h

The windiest month (with the highest average wind speed) is February (15km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).

Average humidity in December
Mariana, Spain

  • Average humidity in December: 75%

The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is July (42%).

Average rainfall in December
Mariana, Spain

  • Average rainfall in December: 28mm

The wettest month (with the highest rainfall) is April (52mm).
The driest month (with the least rainfall) is July (14mm).

Average rainfall days in December
Mariana, Spain

  • Average rainfall days in December: 7.6 days

The month with the highest number of rainy days is April (16 days).
The month with the least rainy days is July (4.8 days).

Average snowfall in December
Mariana, Spain

  • Average snowfall in December: 18mm

The month with the highest snowfall is March (58mm).
The months with the least snowfall are June, July, August, September and October (0mm).

Average snowfall days in December
Mariana, Spain

  • Average snowfall days in December: 2.1 days

The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Mariana, Spain

  • Average daylight in December: 9h and 24min

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 24min).

  • Average sunshine in December: 6h and 0min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The months with the least sunshine are November and December (Average sunshine: 6h and 0min).

Average sunshine days in December
Mariana, Spain

  • Average sunshine days in December: 21.3 days

The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is April (11.7 days).

Average UV index in December
Mariana, 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
Mariana, Spain

  • Average cloud cover in December: 36

The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 9).

Average visibility in December
Mariana, Spain

  • Average visibility in December: 9km

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