December weather forecastLillo, Spain
December
Weather in December
The first month of the winter, December, is still a cool month in Lillo, Spain, with an average temperature varying between 11.4°C (52.5°F) and 3.8°C (38.8°F).Temperature
The start of December signals a gentle decrease in the average high-temperature, transitioning from a moderate 14.4°C (57.9°F) in November to a fresh 11.4°C (52.5°F). Throughout December, Lillo experiences a low-temperature average of 3.8°C (38.8°F).Humidity
In Lillo, the average relative humidity in December is 72%.Rainfall
In December, the rain falls for 7.2 days. Throughout December, 25mm (0.98") of precipitation is accumulated. Throughout the year, in Lillo, there are 91.9 rainfall days, and 290mm (11.42") of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Lillo. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow. In Lillo, during the entire year, snow falls for 1.8 days and aggregates up to 21mm (0.83") of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 08:15 and sunset at 17:49. On the last day of December, in Lillo, sunrise is at 08:34 and sunset at 17:58 CET.
Sunshine
December has the least sunshine of the year, with an average of 6.2h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lillo, Spain
- Average high temperature in December: 11.4°C
The warmest month (with the highest average high temperature) is July (33.6°C).
The month with the lowest average high temperature is January (10.3°C).
- Average low temperature in December: 3.8°C
The month with the highest average low temperature is July (20.8°C).
The coldest month (with the lowest average low temperature) is January (2.6°C).
Average pressure in December
Lillo, Spain
- Average pressure in December: 1023.6mbar
The month with the highest atmospheric pressure is December (1023.6mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in December
Lillo, Spain
- Average wind speed in December: 10.7km/h
The windiest month (with the highest average wind speed) is March (14.4km/h).
The calmest months (with the lowest average wind speed) are September and October (10.4km/h).
Average humidity in December
Lillo, Spain
- Average humidity in December: 72%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is July (31%).
Average rainfall in December
Lillo, Spain
- Average rainfall in December: 25mm
The wettest month (with the highest rainfall) is April (52mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in December
Lillo, Spain
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is April (13.4 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in December
Lillo, Spain
- Average snowfall in December: 1mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Lillo, Spain
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Lillo, Spain
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
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
Lillo, Spain
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is April (15.1 days).
Average UV index in December
Lillo, Spain
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Lillo, Spain
- Average cloud cover in December: 32
The month with the most cloud cover is January (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in December
Lillo, Spain
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





