December weather forecastIllano, Spain
December
Weather in December
December, the first month of the winter in Illano, is still a cool month, with an average temperature fluctuating between 7.1°C (44.8°F) and 12.5°C (54.5°F).Temperature
December's presence marks an average high-temperature of a cool 12.5°C (54.5°F), subtly varied from November's 14°C (57.2°F). Throughout December, the nighttime temperature averages to a frosty 7.1°C (44.8°F).Humidity
In December, the average relative humidity in Illano is 80%.Rainfall
In Illano, during December, the rain falls for 15.1 days and regularly aggregates up to 67mm (2.64") of precipitation. In Illano, during the entire year, the rain falls for 185.8 days and collects up to 684mm (26.93") of precipitation.Snowfall
January, March through December are months without snowfall in Illano.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Illano.On the first day of the month, sunrise is at 08:40 and sunset at 17:52. On the last day of December, in Illano, sunrise is at 08:59 and sunset at 18:01 CET.
Sunshine
With an average of 5h of sunshine, December has the least sunshine of the year.UV index
In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 3 suggests these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Illano, Spain
- Average high temperature in December: 12.5°C
The warmest month (with the highest average high temperature) is August (22.4°C).
The month with the lowest average high temperature is January (11.3°C).
- Average low temperature in December: 7.1°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (5.6°C).
Average pressure in December
Illano, Spain
- Average pressure in December: 1021.4mbar
The month with the highest atmospheric pressure is December (1021.4mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in December
Illano, Spain
- Average wind speed in December: 13.3km/h
The windiest month (with the highest average wind speed) is February (14.4km/h).
The calmest month (with the lowest average wind speed) is August (9km/h).
Average humidity in December
Illano, Spain
- Average humidity in December: 80%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (78%).
Average rainfall in December
Illano, Spain
- Average rainfall in December: 67mm
The wettest month (with the highest rainfall) is November (108mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in December
Illano, Spain
- Average rainfall days in December: 15.1 days
The month with the highest number of rainy days is January (19.5 days).
The month with the least rainy days is September (11.6 days).
Average snowfall in December
Illano, Spain
- Average snowfall in December: 0mm
The month with the highest snowfall is February (3mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Illano, Spain
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Illano, Spain
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Illano, Spain
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is November (7.7 days).
Average UV index in December
Illano, Spain
- Average UV index in December: 3
The months with the highest UV index are May, June, July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in December
Illano, Spain
- Average cloud cover in December: 45
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is October (Cloud cover 40).
Average visibility in December
Illano, Spain
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, October, November and December (9km).
The months with the lowest visibility are May, June, July, August and September (8km).
