December weather forecastGuillos, France

December

Weather in December

December, the first month of the winter in Guillos, is also a fresh month, with an average temperature ranging between min 5.4°C (41.7°F) and max 10.8°C (51.4°F).

Temperature

Guillos in December undergoes a slight reduction in the average high-temperature, shifting from November's refreshing 14°C (57.2°F) to a cool 10.8°C (51.4°F). Guillos temperatures generally rest at a low of 5.4°C (41.7°F) during the December nights.

Humidity

January and December, with an average relative humidity of 84%, are the most humid months.

Rainfall

In December, the rain falls for 13.2 days. Throughout December, 42mm (1.65") of precipitation is accumulated. In Guillos, during the entire year, the rain falls for 143.7 days and collects up to 355mm (13.98") of precipitation.

Snowfall

Months with snowfall are February, March and December. The month with the most snowfall is December, when snow falls for 0.3 days and typically aggregates up to 4mm (0.16") of snow.

Daylight

With an average of 8h and 54min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:18 and sunset at 17:23. On the last day of December, in Guillos, sunrise is at 08:38 and sunset at 17:31 CET.

Sunshine

With an average of 5h of sunshine, December has the least sunshine of the year.

UV index

January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 3 during December leads to these instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Updated: Jun 18, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in December, in Guillos, is 10.8°C (51.4°F) and the average low-temperature is 5.4°C (41.7°F). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 30°C (86°F).

The months with the highest humidity are January and December, with an average relative humidity of 84%.

In Guillos, the average relative humidity in December is 84%.

In Guillos, in December, during 13.2 rainfall days, 42mm (1.65") of precipitation is typically accumulated.

December is the month with the most snowfall. Snow falls for 0.3 days and accumulates 4mm (0.16") of snow.

December is the first month it typically snows in Guillos. Throughout December, in the average 0.3 snowfall days, it receives 4mm (0.16") of snow.

The month with the shortest days is December, with an average of 8h and 54min of daylight.

In Guillos, the average day length in December is 8h and 53min.

In December, on the first day of the month, sunrise is at 08:18 and sunset at 17:23. On the last day of the month, in Guillos, sunrise is at 08:38 and sunset at 17:31 CET.

The month with the least sunshine is December, with an average of 5h of sunshine.

The average sunshine duration in December is 5h.

January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index.

The average daily maximum UV index in December in Guillos is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

14°C

10.8°C

9.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

11.9km/h

11.7km/h

11.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

15.5

15.6

15.4

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Guillos, France

Average high temperature in December: 10.8°C

The warmest month (with the highest average high temperature) is August (27.5°C).
The month with the lowest average high temperature is January (9.8°C).

Average low temperature in December: 5.4°C

The month with the highest average low temperature is July (16.3°C).
The coldest month (with the lowest average low temperature) is February (4.1°C).

Average pressure in December
Guillos, France

Average pressure in December: 1020.9mbar

The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is November (1015mbar).

Average wind speed in December
Guillos, France

Average wind speed in December: 10.8km/h

The windiest month (with the highest average wind speed) is March (11.9km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).

Average humidity in December
Guillos, France

Average humidity in December: 84%

The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is August (68%).

Average rainfall in December
Guillos, France

Average rainfall in December: 42mm

The wettest month (with the highest rainfall) is November (51mm).
The driest month (with the least rainfall) is September (15mm).

Average rainfall days in December
Guillos, France

Average rainfall days in December: 13.2 days

The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is September (8.5 days).

Average snowfall in December
Guillos, France

Average snowfall in December: 4mm

The month with the highest snowfall is December (4mm).
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Guillos, France

Average snowfall days in December: 0.3 days

The months with the highest number of snowfall days are February and December (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Guillos, France

Average daylight in December: 8h and 54min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in December
Guillos, France

Average sunshine days in December: 15.6 days

The month with the most sunshine days is September (19.6 days).
The months with the least sunshine days are May and June (13.8 days).

Average UV index in December
Guillos, France

Average UV index in December: 3

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 3).

Average cloud cover in December
Guillos, France

Average cloud cover in December: 48

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in December
Guillos, France

Average visibility in December: 9km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).