December weather forecastRiols, France

December

Weather in December

The first month of the winter, December, is also a fresh month in Riols, France, with an average temperature ranging between max 11.3°C (52.3°F) and min 6.8°C (44.2°F).

Temperature

Riols's December showcases an average high-temperature of a cool 11.3°C (52.3°F), hardly distinct from November's 14.1°C (57.4°F). December's average low-temperature is a frosty 6.8°C (44.2°F), reflecting a minor difference from the day's peak temperatures.

Humidity

November and December, with an average relative humidity of 76%, are the most humid months.

Rainfall

In December, the rain falls for 8.3 days. Throughout December, 19mm (0.75") of precipitation is accumulated. Throughout the year, in Riols, there are 109.6 rainfall days, and 357mm (14.06") of precipitation is accumulated.

Snowfall

January, February, April through December are months without snowfall.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:02 and sunset at 17:13. On the last day of December, sunrise is at 08:21 and sunset at 17:22 CET.

Sunshine

The average sunshine in December in Riols is 6.1h.

UV index

The months with the lowest UV index in Riols are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 3 in December interprets into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

An average high-temperature, in December, in Riols, is 11.3°C (52.3°F) and the average low-temperature is 6.8°C (44.2°F). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 29°C (84.2°F).

November and December, with an average relative humidity of 76%, are most humid months.

In December, the average relative humidity is 76%.

In Riols, France, during December, the rain falls for 8.3 days and regularly aggregates up to 19mm (0.75") of precipitation.

In Riols, France, snow does not fall in January, February, April through December.

With an average of 9h and 0min of daylight, December has the shortest days of the year in Riols, France.

In Riols, the average day length in December is 9h and 1min.

On the first day of December in Riols, sunrise is at 08:02 and sunset at 17:13. On the last day of the month, sunrise is at 08:21 and sunset at 17:22 CET.

The average sunshine duration in December in Riols, France, is 6.1h.

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Riols, France.

In Riols, France, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
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
Riols, France

  • Average high temperature in December: 11.3°C

The warmest months (with the highest average high temperature) are July and August (27.7°C).
The month with the lowest average high temperature is January (9.9°C).

  • Average low temperature in December: 6.8°C

The month with the highest average low temperature is August (19.1°C).
The coldest month (with the lowest average low temperature) is February (5°C).

Average pressure in December
Riols, 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 April (1015mbar).

Average wind speed in December
Riols, France

  • Average wind speed in December: 18km/h

The windiest month (with the highest average wind speed) is February (20.2km/h).
The calmest month (with the lowest average wind speed) is August (14.7km/h).

Average humidity in December
Riols, France

  • Average humidity in December: 76%

The months with the highest relative humidity are November and December (76%).
The month with the lowest relative humidity is July (63%).

Average rainfall in December
Riols, France

  • Average rainfall in December: 19mm

The wettest month (with the highest rainfall) is October (63mm).
The driest month (with the least rainfall) is August (16mm).

Average rainfall days in December
Riols, France

  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is November (12.8 days).
The month with the least rainy days is February (7 days).

Average snowfall in December
Riols, France

  • Average snowfall in December: 0mm

The month with the highest snowfall is March (7mm).
The months with the least snowfall are January, February, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in December
Riols, France

  • Average snowfall days in December: 0.2 days

The months with the highest number of snowfall days are January, February, March and December (0.2 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
Riols, France

  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 6h and 6min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).

Average sunshine days in December
Riols, France

  • Average sunshine days in December: 19.1 days

The months with the most sunshine days are August and September (21.1 days).
The month with the least sunshine days is November (14.2 days).

Average UV index in December
Riols, France

  • Average UV index in December: 3

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

Average cloud cover in December
Riols, France

  • Average cloud cover in December: 34

The month with the most cloud cover is November (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 15).

Average visibility in December
Riols, France

  • Average visibility in December: 10km

The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January and November (9km).