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.

Frequently asked questions

The average high-temperature, in December, in Guewenheim, is 4.6°C (40.3°F), while the average low-temperature is -0.4°C (31.3°F).

January and December, with an average relative humidity of 88%, are most humid months in Guewenheim.

In Guewenheim, the average relative humidity in December is 88%.

In Guewenheim, in December, during 15.1 rainfall days, 84mm (3.31") of precipitation is typically accumulated.

In Guewenheim, France, during December, snow falls for 7.8 days and regularly aggregates up to 91mm (3.58") of snow.

The month with the shortest days is December, with an average of 8h and 30min of daylight.

In Guewenheim, France, the average day length in December is 8h and 29min.

On the first day of December in Guewenheim, France, sunrise is at 07:59 and sunset at 16:41. On the last day of the month, sunrise is at 08:20 and sunset at 16:49 CET.

December has the least sunshine of the year in Guewenheim, France, with an average of 4.2h of sunshine.

In Guewenheim, France, the average sunshine duration in December is 4.2h.

The months with the lowest UV index in Guewenheim are January, February, October through December, with an average maximum UV index of 2.

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's 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
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).