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.

Frequently asked questions

The high-temperature in Lillo, Spain, during December is 11.4°C (52.5°F) and the low-temperature is 3.8°C (38.8°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is evaluated at 28°C (82.4°F).

In December, the average relative humidity in Lillo is 72%.

In Lillo, Spain, in December, it is raining for 7.2 days, with typically 25mm (0.98") of accumulated precipitation.

December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow.

The month with the shortest days in Lillo is December, with an average of 9h and 24min of daylight.

In December, the average day length in Lillo, Spain, is 9h and 25min.

On the first day of December in Lillo, Spain, sunrise is at 08:15 and sunset at 17:49. On the last day of the month, sunrise is at 08:34 and sunset at 17:58 CET.

With an average of 6.2h of sunshine, December has the least sunshine of the year in Lillo.

In Lillo, the average sunshine duration in December is 6.2h.

With an average maximum UV index of 2, December is the month with the lowest UV index.

The average daily maximum UV index in December in Lillo, Spain, is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).