December weather forecastIllana, Spain
December
Weather in December
December, the first month of the winter in Illana, is still a cool month, with an average temperature ranging between min 2.8°C (37°F) and max 10.5°C (50.9°F).Temperature
The arrival of December is marked by an average high-temperature of a cool 10.5°C (50.9°F), bearing a close resemblance to November. In Illana, an average nighttime temperature of 2.8°C (37°F) is expected during December.Humidity
The average relative humidity in December is 73%.Rainfall
In Illana, during December, the rain falls for 8 days and regularly aggregates up to 28mm (1.1") of precipitation. In Illana, during the entire year, the rain falls for 91.7 days and collects up to 267mm (10.51") of precipitation.Snowfall
January through March, November and December are months with snowfall. In Illana, in December, during 0.5 snowfall days, 2mm (0.08") of snow is typically accumulated. Throughout the year, there are 3.1 snowfall days, and 26mm (1.02") of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:15 and sunset at 17:46. On the last day of December, sunrise is at 08:33 and sunset at 17:55 CET.
Sunshine
December has the least sunshine of the year, with an average of 6.2h of sunshine.UV index
November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Illana, Spain
- Average high temperature in December: 10.5°C
The warmest month (with the highest average high temperature) is July (32.6°C).
The month with the lowest average high temperature is January (9.5°C).
- Average low temperature in December: 2.8°C
The months with the highest average low temperature are July and August (19.7°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in December
Illana, Spain
- Average pressure in December: 1023.5mbar
The month with the highest atmospheric pressure is December (1023.5mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in December
Illana, Spain
- Average wind speed in December: 9.5km/h
The windiest month (with the highest average wind speed) is March (12.5km/h).
The calmest month (with the lowest average wind speed) is December (9.5km/h).
Average humidity in December
Illana, Spain
- Average humidity in December: 73%
The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is July (33%).
Average rainfall in December
Illana, Spain
- Average rainfall in December: 28mm
The wettest month (with the highest rainfall) is April (44mm).
The driest month (with the least rainfall) is July (5mm).
Average rainfall days in December
Illana, Spain
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is April (12.3 days).
The month with the least rainy days is August (2 days).
Average snowfall in December
Illana, Spain
- Average snowfall in December: 2mm
The month with the highest snowfall is January (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Illana, Spain
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is January (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Illana, 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 12min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in December
Illana, Spain
- Average sunshine days in December: 21 days
The month with the most sunshine days is August (28.5 days).
The month with the least sunshine days is April (14.8 days).
Average UV index in December
Illana, Spain
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are November and December (UV index 2).
Average cloud cover in December
Illana, Spain
- Average cloud cover in December: 32
The month with the most cloud cover is January (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in December
Illana, Spain
- Average visibility in December: 9km
The months with the highest visibility are February, March, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, April, November and December (9km).
