December weather forecastIlárraza, Spain
December
Weather in December
December, the first month of the winter in Ilárraza, is also a frosty month, with an average temperature varying between 2.8°C (37°F) and 9.5°C (49.1°F).Temperature
Ilárraza's transition from November to December introduces an average high-temperature of a frosty 9.5°C (49.1°F), marking an insignificant variation from the 12°C (53.6°F). Ilárraza temperatures generally rest at a low of 2.8°C (37°F) during the December nights.Humidity
In December, the average relative humidity is 82%.Rainfall
In Ilárraza, in December, during 13.3 rainfall days, 37mm (1.46") of precipitation is typically accumulated. In Ilárraza, during the entire year, the rain falls for 185.7 days and collects up to 544mm (21.42") of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Ilárraza, in December, snow falls for 2.1 days, with typically accumulated 40mm (1.57") of snow. Throughout the year, there are 14.8 snowfall days, and 208mm (8.19") of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Ilárraza.On the first day of December in Ilárraza, sunrise is at 08:21 and sunset at 17:37. On the last day of the month, sunrise is at 08:41 and sunset at 17:46 CET.
Sunshine
In Ilárraza, Spain, the average sunshine in December is 5.3h.UV index
The months with the lowest UV index in Ilárraza are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests this advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ilárraza, Spain
- Average high temperature in December: 9.5°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (8.2°C).
- Average low temperature in December: 2.8°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).
Average pressure in December
Ilárraza, Spain
- Average pressure in December: 1022.2mbar
The month with the highest atmospheric pressure is December (1022.2mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Ilárraza, Spain
- Average wind speed in December: 11km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest months (with the lowest average wind speed) are August and September (7.6km/h).
Average humidity in December
Ilárraza, Spain
- Average humidity in December: 82%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Ilárraza, Spain
- Average rainfall in December: 37mm
The wettest month (with the highest rainfall) is November (79mm).
The driest month (with the least rainfall) is September (27mm).
Average rainfall days in December
Ilárraza, Spain
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is April (18.6 days).
The month with the least rainy days is February (12.3 days).
Average snowfall in December
Ilárraza, Spain
- Average snowfall in December: 40mm
The month with the highest snowfall is February (89mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Ilárraza, Spain
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is February (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ilárraza, Spain
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is November (Average sunshine: 4h and 48min).
Average sunshine days in December
Ilárraza, Spain
- Average sunshine days in December: 14 days
The month with the most sunshine days is October (15 days).
The month with the least sunshine days is June (8.7 days).
Average UV index in December
Ilárraza, Spain
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Ilárraza, Spain
- Average cloud cover in December: 47
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in December
Ilárraza, Spain
- Average visibility in December: 9km
The months with the highest visibility are February, March, October, November and December (9km).
The month with the lowest visibility is July (7km).





