December weather forecastMannheim, Germany
December
Weather in December
December is characterized by deep winter weather in Mannheim, following the dropping temperatures of November. The high snowfall amounting to 42mm (1.65") combined makes this the snowiest month. Diminishing daylight hours yield to lengthier nights and reduced sunlight days. The chilly wind solidifies the feeling of a winter scenario with temperatures diving to a low of 0.9°C (33.6°F). This month, gripping the city in its frosty hold, leads Mannheim into the new year.Temperature
The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a frosty 8.7°C (47.7°F) in November to a wintry 5.3°C (41.5°F). Nighttime temperature in Mannheim, Germany, reflects an average dip to 0.9°C (33.6°F) in December, subtly cooler than its daytime highs.Humidity
January and December, with an average relative humidity of 86%, are the most humid months in Mannheim, Germany.Rainfall
In Mannheim, in December, during 14.5 rainfall days, 38mm (1.5") of precipitation is typically accumulated. In Mannheim, Germany, during the entire year, the rain falls for 160.6 days and collects up to 378mm (14.88") of precipitation.Snowfall
January through March, October through December are months with snowfall. December is the month with the most snowfall in Mannheim. Snow falls for 4.6 days and accumulates 42mm (1.65") of snow.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year.On the first day of December in Mannheim, sunrise is at 08:01 and sunset at 16:29. On the last day of the month, sunrise is at 08:22 and sunset at 16:36 CET.
Sunshine
With an average of 3.8h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mannheim. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mannheim, Germany
- Average high temperature in December: 5.3°C
The warmest month (with the highest average high temperature) is July (25.5°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in December: 0.9°C
The month with the highest average low temperature is August (15.2°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in December
Mannheim, Germany
- Average pressure in December: 1018.9mbar
The month with the highest atmospheric pressure is December (1018.9mbar).
The month with the lowest atmospheric pressure is November (1014.8mbar).
Average wind speed in December
Mannheim, Germany
- Average wind speed in December: 12.1km/h
The windiest month (with the highest average wind speed) is February (12.5km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in December
Mannheim, Germany
- Average humidity in December: 86%
The months with the highest relative humidity are January and December (86%).
The months with the lowest relative humidity are July and August (68%).
Average rainfall in December
Mannheim, Germany
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is May (46mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Mannheim, Germany
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is September (11 days).
Average snowfall in December
Mannheim, Germany
- Average snowfall in December: 42mm
The month with the highest snowfall is December (42mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Mannheim, Germany
- Average snowfall days in December: 4.6 days
The month with the highest number of snowfall days is January (6.1 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
Mannheim, Germany
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 48min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in December
Mannheim, Germany
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is April (16.6 days).
The month with the least sunshine days is December (10.8 days).
Average UV index in December
Mannheim, Germany
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Mannheim, Germany
- Average cloud cover in December: 62
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Mannheim, Germany
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, November and December (8km).
