December weather forecastRoaillan, France

December

Weather in December

The first month of the winter, December, is also a fresh month in Roaillan, France, with an average temperature fluctuating between 10.4°C (50.7°F) and 4.5°C (40.1°F).

Temperature

December reveals a small adjustment in temperature, transitioning from an average high of a mild 13.5°C (56.3°F) in November to a cool 10.4°C (50.7°F). Throughout December, the nighttime temperature averages to a wintry 4.5°C (40.1°F).

Humidity

In Roaillan, the average relative humidity in December is 85%.

Rainfall

In Roaillan, in December, during 14.5 rainfall days, 54mm (2.13") of precipitation is typically accumulated. Throughout the year, in Roaillan, there are 175.6 rainfall days, and 565mm (22.24") of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall. The month with the most snowfall in Roaillan is December, when snow falls for 0.9 days and typically aggregates up to 10mm (0.39") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 08:17 and sunset at 17:22. On the last day of December, in Roaillan, sunrise is at 08:37 and sunset at 17:31 CET.

Sunshine

In December, the average sunshine is 5h.

UV index

In Roaillan, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 3 in December suggests the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Updated: Feb 1, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Roaillan, in December, the average high-temperature is 10.4°C (50.7°F), and the average low-temperature is 4.5°C (40.1°F). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 32°C (89.6°F).

The average relative humidity in December is 85%.

In Roaillan, France, in December, during 14.5 rainfall days, 54mm (2.13") of precipitation is typically accumulated.

December is the month with the most snowfall in Roaillan, France. Snow falls for 0.9 days and accumulates 10mm (0.39") of snow.

December is the first month it typically snows in Roaillan. Throughout December, in the average 0.9 snowfall days, it receives 10mm (0.39") of snow.

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

The average day length in December is 8h and 54min.

In December, on the first day of the month, sunrise is at 08:17 and sunset at 17:22. On the last day of the month, in Roaillan, sunrise is at 08:37 and sunset at 17:31 CET.

The average sunshine duration in December in Roaillan is 5h.

In December, the average daily maximum UV index is 3. A UV Index reading 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

13.5°C

10.4°C

9.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

9.4km/h

9.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

12.4

15.3

12.4

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Roaillan, France

Average high temperature in December: 10.4°C

The warmest month (with the highest average high temperature) is August (28.6°C).
The month with the lowest average high temperature is January (9.2°C).

Average low temperature in December: 4.5°C

The month with the highest average low temperature is July (15.6°C).
The coldest month (with the lowest average low temperature) is February (3.2°C).

Average pressure in December
Roaillan, France

Average pressure in December: 1021.5mbar

The month with the highest atmospheric pressure is December (1021.5mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).

Average wind speed in December
Roaillan, France

Average wind speed in December: 8.5km/h

The windiest month (with the highest average wind speed) is March (9.3km/h).
The calmest months (with the lowest average wind speed) are August and September (7.1km/h).

Average humidity in December
Roaillan, France

Average humidity in December: 85%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (69%).

Average rainfall in December
Roaillan, France

Average rainfall in December: 54mm

The wettest month (with the highest rainfall) is November (80mm).
The driest month (with the least rainfall) is September (25mm).

Average rainfall days in December
Roaillan, France

Average rainfall days in December: 14.5 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is September (10.8 days).

Average snowfall in December
Roaillan, France

Average snowfall in December: 10mm

The month with the highest snowfall is December (10mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Roaillan, France

Average snowfall days in December: 0.9 days

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Roaillan, 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: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).