Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January is the coldest month of the year, registering average temperatures as high as 4°C (39.2°F) and as low as -0.3°C (31.5°F).Humidity
In Bonn, the average relative humidity in January is 88%.Rainfall
In Bonn, in January, during 12.6 rainfall days, 22mm (0.87") of precipitation is typically accumulated. Throughout the year, there are 156 rainfall days, and 305mm (12.01") of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Bonn, during January, snow falls for 6 days and regularly aggregates up to 25mm (0.98") of snow. Throughout the year, there are 19.5 snowfall days, and 98mm (3.86") of snow is accumulated.Daylight
In January, the average length of the day in Bonn, Germany, is 8h and 33min.On the first day of the month, sunrise is at 08:33 and sunset at 16:36. On the last day of January, sunrise is at 08:09 and sunset at 17:20 CET.
Sunshine
In Bonn, the average sunshine in January is 4h.UV index
The months with the lowest UV index in Bonn are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 during January translates into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What time of the year is the coldest in Bonn?
How cold is it in Bonn in January?
What is the average humidity in January in Bonn?
How many days does it rain in January in Bonn?
How much does it snow in Bonn in January?
What is the average length of the day in January in Bonn?
When are sunrise and sunset in January in Bonn?
How long on average sun shines in January in Bonn?
What is the month with the lowest UV index in Bonn?
What is the UV index intensity in January in Bonn?
Average temperature in January
Bonn, Germany
- Average high temperature in January: 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 January: -0.3°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 January
Bonn, Germany
- Average pressure in January: 1016.8mbar
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 January
Bonn, Germany
- Average wind speed in January: 12.4km/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 January
Bonn, Germany
- Average humidity in January: 88%
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 January
Bonn, Germany
- Average rainfall in January: 22mm
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 January
Bonn, Germany
- Average rainfall days in January: 12.6 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 January
Bonn, Germany
- Average snowfall in January: 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 January
Bonn, Germany
- Average snowfall days in January: 6 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 January /
Average sunshine in January
Bonn, Germany
- Average daylight in January: 8h and 4min
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 January: 4h and 0min
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 January
Bonn, Germany
- Average sunshine days in January: 12.8 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 January
Bonn, Germany
- Average UV index in January: 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 January
Bonn, Germany
- Average cloud cover in January: 61
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 January
Bonn, Germany
- Average visibility in January: 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).
Bonn, Germany
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