December weather forecastMainz, Germany
December
Weather in December
Rounding up the year, December embraces the winter season with the lowest temperatures, second only to January, falling to a high of 5°C (41°F). Delivering a white Christmas to Mainz, December sees the return of snowfall, with the ground blanketed by 38mm (1.5") of snow. Limited daylight and reduced visibility add to the cold aura of the month. Despite the cold, December's festive spirit uplifts the mood of the residents, lending warmth to the otherwise chilly weather. The year ends on a chilly note, displaying Mainz in a winter wonderland.Temperature
With the onset of December, the average high-temperature subtly recedes from November's chilly 8.5°C (47.3°F) to a wintry 5°C (41°F). Mainz, during the nights of December, averages a temperature close to its daytime high, at a still cold 0.9°C (33.6°F).Humidity
December is the most humid month, with an average relative humidity of 87%.Rainfall
In Mainz, in December, during 14.3 rainfall days, 38mm (1.5") of precipitation is typically accumulated. In Mainz, during the entire year, the rain falls for 146.5 days and collects up to 366mm (14.41") of precipitation.Snowfall
January through April, November and December are months with snowfall in Mainz. In Mainz, in December, snow falls for 4.6 days, with typically accumulated 38mm (1.5") of snow. In Mainz, during the entire year, snow falls for 17.5 days and aggregates up to 119mm (4.69") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 12min of daylight.On the first day of December in Mainz, sunrise is at 08:04 and sunset at 16:28. On the last day of the month, sunrise is at 08:25 and sunset at 16:35 CET.
Sunshine
December has the least sunshine of the year, with an average of 3.6h of sunshine.UV index
The months with the lowest UV index in Mainz are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Opt for tightly woven and loose clothing to enhance protection from the Sun. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mainz, Germany
- Average high temperature in December: 5°C
The warmest month (with the highest average high temperature) is July (25.2°C).
The month with the lowest average high temperature is January (3.7°C).
- Average low temperature in December: 0.9°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (-0.5°C).
Average pressure in December
Mainz, Germany
- Average pressure in December: 1018.3mbar
The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is November (1014.5mbar).
Average wind speed in December
Mainz, Germany
- Average wind speed in December: 11.4km/h
The windiest months (with the highest average wind speed) are February and March (11.9km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).
Average humidity in December
Mainz, Germany
- Average humidity in December: 87%
The month with the highest relative humidity is December (87%).
The months with the lowest relative humidity are July and August (67%).
Average rainfall in December
Mainz, Germany
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Mainz, Germany
- Average rainfall days in December: 14.3 days
The month with the highest number of rainy days is July (14.7 days).
The months with the least rainy days are February and September (9.6 days).
Average snowfall in December
Mainz, Germany
- Average snowfall in December: 38mm
The month with the highest snowfall is February (39mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Mainz, Germany
- Average snowfall days in December: 4.6 days
The month with the highest number of snowfall days is February (5.4 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
Mainz, Germany
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in December
Mainz, Germany
- Average sunshine days in December: 12 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is December (12 days).
Average UV index in December
Mainz, 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
Mainz, Germany
- Average cloud cover in December: 63
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Mainz, Germany
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).
