Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The transition to December results in a modest reduction in average high-temperature, moving from a cool 10.4°C (50.7°F) in November to a frosty 6.8°C (44.2°F). Royas's temperature tends to fall to an average low of 1.4°C (34.5°F) during the nights of December.Humidity
The most humid month in Royas is December, with an average relative humidity of 86%.Rainfall
In Royas, France, during December, the rain falls for 13.1 days and regularly aggregates up to 46mm (1.81") of precipitation. In Royas, during the entire year, the rain falls for 151.5 days and collects up to 504mm (19.84") of precipitation.Snowfall
January through March, October through December are months with snowfall. In Royas, during December, snow falls for 4.4 days and regularly aggregates up to 31mm (1.22") of snow. In Royas, during the entire year, snow falls for 21.4 days and aggregates up to 181mm (7.13") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 07:59 and sunset at 16:57. On the last day of December, sunrise is at 08:19 and sunset at 17:06 CET.
Sunshine
The average sunshine in December is 4.7h.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 of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
How cold is December in Royas?
What is the most humid month in Royas?
What is the average humidity in December in Royas?
How much does it rain in Royas in December?
How much does it snow in Royas in December?
What is the month with the shortest days in Royas?
How many hours of daylight does Royas have in December?
What time are sunrise and sunset in December in Royas?
How many hours of sunshine does Royas have in December?
When is the lowest UV index in Royas?
What is the UV index intensity in December in Royas?
Average temperature in December
Royas, France
- Average high temperature in December: 6.8°C
The warmest month (with the highest average high temperature) is August (26°C).
The month with the lowest average high temperature is January (5.3°C).
- Average low temperature in December: 1.4°C
The month with the highest average low temperature is July (14.4°C).
The coldest months (with the lowest average low temperature) are January and February (0.2°C).
Average pressure in December
Royas, France
- Average pressure in December: 1021.2mbar
The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in December
Royas, France
- Average wind speed in December: 11.2km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is September (9.2km/h).
Average humidity in December
Royas, France
- Average humidity in December: 86%
The month with the highest relative humidity is December (86%).
The month with the lowest relative humidity is August (71%).
Average rainfall in December
Royas, France
- Average rainfall in December: 46mm
The wettest month (with the highest rainfall) is November (56mm).
The driest month (with the least rainfall) is February (25mm).
Average rainfall days in December
Royas, France
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is September (10.2 days).
Average snowfall in December
Royas, France
- Average snowfall in December: 31mm
The month with the highest snowfall is November (79mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Royas, 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 and September (0 days).
Average daylight in December /
Average sunshine in December
Royas, France
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Royas, France
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is August (17.4 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in December
Royas, France
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Royas, France
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Royas, France
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July and August (9km).
The months with the lowest visibility are January, September, October, November and December (8km).
Royas, France
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