December weather forecastRiel-les-Eaux, France
December
Weather in December
The first month of the winter, December, is still a chilly month in Riel-les-Eaux, France, with an average temperature fluctuating between 6.1°C (43°F) and 1.4°C (34.5°F).Temperature
With the commencement of December, Riel-les-Eaux records a moderate temperature decline, with the average high easing from November's 9.5°C (49.1°F) to a still chilly 6.1°C (43°F). During the nights of December, Riel-les-Eaux records an average low-temperature of 1.4°C (34.5°F), reflecting a modest decrease from daytime highs.Humidity
December is the most humid month in Riel-les-Eaux, with an average relative humidity of 89%.Rainfall
The month with the most rainfall is December, when the rain falls for 15.2 days and typically aggregates up to 53mm (2.09") of precipitation.Snowfall
January through March, November and December are months with snowfall. In Riel-les-Eaux, in December, during 4.4 snowfall days, 27mm (1.06") of snow is typically accumulated. Throughout the year, there are 19.2 snowfall days, and 125mm (4.92") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of December in Riel-les-Eaux, sunrise is at 08:10 and sunset at 16:50. On the last day of the month, sunrise is at 08:30 and sunset at 16:58 CET.
Sunshine
January and December, with an average of 3.7h of sunshine, are months with the least sunshine in Riel-les-Eaux, France.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Riel-les-Eaux, France
- Average high temperature in December: 6.1°C
The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in December: 1.4°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).
Average pressure in December
Riel-les-Eaux, France
- Average pressure in December: 1019.9mbar
The month with the highest atmospheric pressure is December (1019.9mbar).
The month with the lowest atmospheric pressure is November (1014.8mbar).
Average wind speed in December
Riel-les-Eaux, France
- Average wind speed in December: 14.7km/h
The windiest month (with the highest average wind speed) is February (14.8km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).
Average humidity in December
Riel-les-Eaux, France
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Riel-les-Eaux, France
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is December (53mm).
The driest month (with the least rainfall) is September (27mm).
Average rainfall days in December
Riel-les-Eaux, France
- Average rainfall days in December: 15.2 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is September (10.8 days).
Average snowfall in December
Riel-les-Eaux, France
- Average snowfall in December: 27mm
The month with the highest snowfall is January (48mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Riel-les-Eaux, France
- Average snowfall days in December: 4.4 days
The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Riel-les-Eaux, France
- Average daylight in December: 8h and 30min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 3h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in December
Riel-les-Eaux, France
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is June (9.5 days).
Average UV index in December
Riel-les-Eaux, France
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Riel-les-Eaux, France
- Average cloud cover in December: 63
The months with the most cloud cover are January and December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Riel-les-Eaux, France
- Average visibility in December: 8km
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are January, February, May, June, July, September, October, November and December (8km).
