December weather forecastBonn, Germany
December
Weather in December
December marks the official arrival of winter in Bonn, and it brings with it all the indicators of a conventional European Winter. The temperatures continue to descend, reaching an average minimum of around 1.2°C (34.2°F). The city dresses itself with a white blanket of snow, particularly towards the end of the month. Daylight is highly limited during this month, leading to the city's interiors getting cosy and welcoming with warm lights and decorations in anticipation of the holiday season. Undoubtedly, December in Bonn presents a typical winter scenario, offering all the charms and beauty of a European winter wonderland.Temperature
December in Bonn heralds a minor drop in average high-temperature, sliding from November's chilly 8.9°C (48°F) to a cold 5.4°C (41.7°F). In Bonn, the nighttime temperature in December descends gently to an average of 1.2°C (34.2°F).Humidity
With an average relative humidity of 89%, December is the most humid month.Rainfall
In Bonn, during December, the rain falls for 13.6 days and regularly aggregates up to 29mm (1.14") of precipitation. In Bonn, during the entire year, the rain falls for 156 days and collects up to 305mm (12.01") of precipitation.Snowfall
January through March, November and December are months with snowfall in Bonn. In Bonn, Germany, in December, snow falls for 5.1 days, with typically accumulated 25mm (0.98") of snow. In Bonn, during the entire year, snow falls for 19.5 days and aggregates up to 98mm (3.86") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 6min of daylight.On the first day of the month, sunrise is at 08:12 and sunset at 16:29. On the last day of December, in Bonn, sunrise is at 08:33 and sunset at 16:36 CET.
Sunshine
December has the least sunshine of the year in Bonn, with an average of 3.8h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 2 in December leads to these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. When the Sun is at its strongest around midday, find shade and limit exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bonn, Germany
- Average high temperature in December: 5.4°C
The warmest month (with the highest average high temperature) is July (23.5°C).
The month with the lowest average high temperature is January (4°C).
- Average low temperature in December: 1.2°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in December
Bonn, Germany
- Average pressure in December: 1017.1mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.6mbar).
Average wind speed in December
Bonn, Germany
- Average wind speed in December: 12.5km/h
The windiest month (with the highest average wind speed) is February (12.8km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).
Average humidity in December
Bonn, Germany
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in December
Bonn, Germany
- Average rainfall in December: 29mm
The wettest month (with the highest rainfall) is August (33mm).
The driest months (with the least rainfall) are April and September (17mm).
Average rainfall days in December
Bonn, Germany
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in December
Bonn, Germany
- Average snowfall in December: 25mm
The month with the highest snowfall is February (35mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Bonn, Germany
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Bonn, Germany
- Average daylight in December: 8h and 6min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 3h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in December
Bonn, Germany
- Average sunshine days in December: 11.4 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is December (11.4 days).
Average UV index in December
Bonn, Germany
- 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, November and December (UV index 2).
Average cloud cover in December
Bonn, 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 37).
Average visibility in December
Bonn, Germany
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
