December weather forecastGrainau, Germany
December
Weather in December
December, the first month of the winter in Grainau, is also a wintry month, with an average temperature varying between -5.5°C (22.1°F) and 1.6°C (34.9°F).Temperature
As November transitions to December, the average high-temperature falls from a chilly 6.6°C (43.9°F) to a wintry 1.6°C (34.9°F). The nighttime temperature, during December, averages of -5.5°C (22.1°F).Humidity
In Grainau, Germany, the average relative humidity in December is 86%.Rainfall
In Grainau, during December, the rain falls for 7.4 days and regularly aggregates up to 79mm (3.11") of precipitation. In Grainau, during the entire year, the rain falls for 175.4 days and collects up to 1186mm (46.69") of precipitation.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 11.8 days. Throughout December, 348mm (13.7") of snow is accumulated. Throughout the year, there are 73.3 snowfall days, and 2099mm (82.64") of snow is accumulated.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year.On the first day of December in Grainau, sunrise is at 07:43 and sunset at 16:27. On the last day of the month, sunrise is at 08:03 and sunset at 16:34 CET.
Sunshine
In December, the average sunshine in Grainau, Germany, is 4.8h.UV index
In Grainau, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grainau, Germany
- Average high temperature in December: 1.6°C
The warmest months (with the highest average high temperature) are July and August (20.8°C).
The months with the lowest average high temperature are January and February (0.1°C).
- Average low temperature in December: -5.5°C
The month with the highest average low temperature is August (8.6°C).
The coldest month (with the lowest average low temperature) is February (-8.7°C).
Average pressure in December
Grainau, Germany
- 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 April (1015.7mbar).
Average wind speed in December
Grainau, Germany
- Average wind speed in December: 7.7km/h
The windiest month (with the highest average wind speed) is December (7.7km/h).
The calmest month (with the lowest average wind speed) is September (5.9km/h).
Average humidity in December
Grainau, Germany
- Average humidity in December: 86%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is July (79%).
Average rainfall in December
Grainau, Germany
- Average rainfall in December: 79mm
The wettest month (with the highest rainfall) is August (157mm).
The driest month (with the least rainfall) is November (49mm).
Average rainfall days in December
Grainau, Germany
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is May (23.9 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in December
Grainau, Germany
- Average snowfall in December: 348mm
The month with the highest snowfall is January (573mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Grainau, Germany
- Average snowfall days in December: 11.8 days
The month with the highest number of snowfall days is February (15.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Grainau, Germany
- 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 48min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in December
Grainau, Germany
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is November (15.9 days).
The month with the least sunshine days is July (5.4 days).
Average UV index in December
Grainau, Germany
- Average UV index in December: 2
The month with the highest UV index is June (UV index 5).
The months with the lowest UV index are February and November (UV index 1).
Average cloud cover in December
Grainau, Germany
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in December
Grainau, Germany
- Average visibility in December: 7km
The months with the highest visibility are July and August (8km).
The months with the lowest visibility are January and February (5km).
