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
The arrival of December denotes a barely perceptible change in the average high-temperatures to a frosty 8.6°C (47.5°F) from November's 10.7°C (51.3°F). Throughout December, an average nighttime temperature of 1.4°C (34.5°F) is experienced in San Martín de Valdeiglesias.Humidity
In San Martín de Valdeiglesias, the average relative humidity in December is 77%.Rainfall
In San Martín de Valdeiglesias, in December, during 7.6 rainfall days, 34mm (1.34") of precipitation is typically accumulated. Throughout the year, there are 106.7 rainfall days, and 316mm (12.44") of precipitation is accumulated.Snowfall
Months with snowfall in San Martín de Valdeiglesias are January through May, October through December. In San Martín de Valdeiglesias, during December, snow falls for 3.3 days and regularly aggregates up to 39mm (1.54") of snow. In San Martín de Valdeiglesias, Spain, during the entire year, snow falls for 24.8 days and aggregates up to 306mm (12.05") of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in San Martín de Valdeiglesias, Spain.On the first day of the month, sunrise is at 08:21 and sunset at 17:51. On the last day of December, sunrise is at 08:40 and sunset at 18:01 CET.
Sunshine
With an average of 6.3h of sunshine, December has the least sunshine of the year.UV index
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the usual temperature for San Martín de Valdeiglesias in December?
What is the average humidity in December in San Martín de Valdeiglesias?
How much does it rain in San Martín de Valdeiglesias in December?
How much does it snow in San Martín de Valdeiglesias in December?
What is the month with the shortest days in San Martín de Valdeiglesias?
How many hours of daylight does San Martín de Valdeiglesias have in December?
When are sunrise and sunset in December in San Martín de Valdeiglesias?
What is the month with the least sunshine in San Martín de Valdeiglesias?
How long on average sun shines in December in San Martín de Valdeiglesias?
When is the lowest UV index in San Martín de Valdeiglesias?
What is the UV index intensity in December in San Martín de Valdeiglesias?
Average temperature in December
San Martín de Valdeiglesias, Spain
- Average high temperature in December: 8.6°C
The warmest month (with the highest average high temperature) is July (29.2°C).
The month with the lowest average high temperature is January (7.3°C).
- Average low temperature in December: 1.4°C
The month with the highest average low temperature is July (15.8°C).
The coldest month (with the lowest average low temperature) is January (0.5°C).
Average pressure in December
San Martín de Valdeiglesias, Spain
- Average pressure in December: 1023.7mbar
The month with the highest atmospheric pressure is December (1023.7mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in December
San Martín de Valdeiglesias, Spain
- Average wind speed in December: 10.1km/h
The windiest month (with the highest average wind speed) is February (13.2km/h).
The calmest month (with the lowest average wind speed) is September (8km/h).
Average humidity in December
San Martín de Valdeiglesias, Spain
- Average humidity in December: 77%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (40%).
Average rainfall in December
San Martín de Valdeiglesias, Spain
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is April (57mm).
The driest month (with the least rainfall) is July (7mm).
Average rainfall days in December
San Martín de Valdeiglesias, Spain
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is August (4 days).
Average snowfall in December
San Martín de Valdeiglesias, Spain
- Average snowfall in December: 39mm
The month with the highest snowfall is March (87mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
San Martín de Valdeiglesias, Spain
- Average snowfall days in December: 3.3 days
The months with the highest number of snowfall days are January and February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
San Martín de Valdeiglesias, Spain
- Average daylight in December: 9h and 2min
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 2min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in December
San Martín de Valdeiglesias, Spain
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is August (24.5 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in December
San Martín de Valdeiglesias, Spain
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in December
San Martín de Valdeiglesias, Spain
- Average cloud cover in December: 33
The months with the most cloud cover are January and November (Cloud cover 38).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in December
San Martín de Valdeiglesias, 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).
San Martín de Valdeiglesias, Spain
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