December weather forecastGuewenheim, France
December
Weather in December
December, the first month of the winter in Guewenheim, is also a wintry month, with an average temperature fluctuating between 4.6°C (40.3°F) and -0.4°C (31.3°F).Temperature
December witnesses a gentle descent in average high-temperature, descending from November's frosty 8°C (46.4°F) to a wintry 4.6°C (40.3°F). A slight dip in temperature to a subzero cold -0.4°C (31.3°F) marks the average nights during December.Humidity
January and December, with an average relative humidity of 88%, are the most humid months.Rainfall
In Guewenheim, during December, the rain falls for 15.1 days and regularly aggregates up to 84mm (3.31") of precipitation. Throughout the year, there are 189.8 rainfall days, and 741mm (29.17") of precipitation is accumulated.Snowfall
Months with snowfall in Guewenheim, France, are January through May, October through December. In Guewenheim, in December, snow falls for 7.8 days, with typically accumulated 91mm (3.58") of snow. Throughout the year, in Guewenheim, there are 37.1 snowfall days, and 450mm (17.72") of snow is accumulated.Daylight
The month with the shortest days in Guewenheim is December, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 07:59 and sunset at 16:41. On the last day of December, sunrise is at 08:20 and sunset at 16:49 CET.
Sunshine
The month with the least sunshine is December, with an average of 4.2h of sunshine.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 2 in December leads to these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Guewenheim, France
- Average high temperature in December: 4.6°C
The warmest month (with the highest average high temperature) is July (22.7°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in December: -0.4°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-1.8°C).
Average pressure in December
Guewenheim, France
- Average pressure in December: 1020.6mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).
Average wind speed in December
Guewenheim, France
- Average wind speed in December: 11.9km/h
The windiest month (with the highest average wind speed) is February (12.1km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in December
Guewenheim, France
- Average humidity in December: 88%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is April (80%).
Average rainfall in December
Guewenheim, France
- Average rainfall in December: 84mm
The wettest month (with the highest rainfall) is June (86mm).
The driest month (with the least rainfall) is September (36mm).
Average rainfall days in December
Guewenheim, France
- Average rainfall days in December: 15.1 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is February (12.4 days).
Average snowfall in December
Guewenheim, France
- Average snowfall in December: 91mm
The month with the highest snowfall is January (114mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Guewenheim, France
- Average snowfall days in December: 7.8 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Guewenheim, France
- Average daylight in December: 8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 4h and 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Guewenheim, France
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is June (7.3 days).
Average UV index in December
Guewenheim, France
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Guewenheim, France
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Guewenheim, France
- Average visibility in December: 8km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).





