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 into December is accompanied by a slight temperature decrease, with the average high-temperature shifting from a cold 3.2°C (37.8°F) in November to a still wintry 0.1°C (32.2°F). During December, Guillestre's temperature falls to a steady low-temperature average of -9.2°C (15.4°F).Humidity
In December, the average relative humidity is 81%.Rainfall
In December, in Guillestre, the rain falls for 2.9 days. Throughout December, 28mm (1.1") of precipitation is accumulated. In Guillestre, France, during the entire year, the rain falls for 119.1 days and collects up to 395mm (15.55") of precipitation.Snowfall
January through June, October through December are months with snowfall in Guillestre. In Guillestre, during December, snow falls for 7.5 days and regularly aggregates up to 182mm (7.17") of snow. In Guillestre, France, during the entire year, snow falls for 60.5 days and aggregates up to 1051mm (41.38") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of December, sunrise is at 07:50 and sunset at 16:54. On the last day of the month, sunrise is at 08:10 and sunset at 17:02 CET.
Sunshine
The average sunshine in December in Guillestre is 6.1h.UV index
In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 in December translates into these instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Guillestre?
What is the average humidity in December in Guillestre?
How much does it rain in Guillestre in December?
How many days does it snow in December in Guillestre?
What is the month with the shortest days in Guillestre?
What is the average length of the day in December in Guillestre?
What time are sunrise and sunset in December in Guillestre?
How long on average sun shines in December in Guillestre?
What is the UV index intensity in December in Guillestre?
Average temperature in December
Guillestre, France
- Average high temperature in December: 0.1°C
The warmest month (with the highest average high temperature) is July (18.8°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in December: -9.2°C
The month with the highest average low temperature is August (6.7°C).
The coldest month (with the lowest average low temperature) is January (-11.2°C).
Average pressure in December
Guillestre, France
- Average pressure in December: 1019.8mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is April (1014.4mbar).
Average wind speed in December
Guillestre, France
- Average wind speed in December: 7.5km/h
The windiest month (with the highest average wind speed) is March (7.7km/h).
The calmest month (with the lowest average wind speed) is September (5.7km/h).
Average humidity in December
Guillestre, France
- Average humidity in December: 81%
The months with the highest relative humidity are February and March (87%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Guillestre, France
- Average rainfall in December: 28mm
The wettest month (with the highest rainfall) is November (58mm).
The driest month (with the least rainfall) is January (14mm).
Average rainfall days in December
Guillestre, France
- Average rainfall days in December: 2.9 days
The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is December (2.9 days).
Average snowfall in December
Guillestre, France
- Average snowfall in December: 182mm
The month with the highest snowfall is November (240mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in December
Guillestre, France
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Guillestre, France
- Average daylight in December: 8h and 5min
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: 6h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The months with the least sunshine are January and November (Average sunshine: 5h and 54min).
Average sunshine days in December
Guillestre, France
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in December
Guillestre, France
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Guillestre, France
- Average cloud cover in December: 33
The months with the most cloud cover are February, April and May (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Guillestre, France
- Average visibility in December: 8km
The months with the highest visibility are June, July, August, September and October (9km).
The months with the lowest visibility are January, February and March (7km).
Guillestre, France
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