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
In Hennef, January records the lowest average temperatures, peaking at 4°C (39.2°F) and reaching a low of -0.3°C (31.5°F).Humidity
In January, the average relative humidity is 88%.Rainfall
In Hennef, in January, it is raining for 12.6 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, in Hennef, there are 156 rainfall days, and 305mm (12.01") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Hennef, in January, during 6 snowfall days, 25mm (0.98") of snow is typically accumulated. Throughout the year, in Hennef, there are 19.5 snowfall days, and 98mm (3.86") of snow is accumulated.Daylight
In January, the average length of the day is 8h and 33min.On the first day of January in Hennef, sunrise is at 08:32 and sunset at 16:35. On the last day of the month, sunrise is at 08:08 and sunset at 17:19 CET.
Sunshine
In Hennef, the average sunshine in January is 4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Hennef. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 2 in January translates into the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What is the coldest time of year in Hennef?
How cold is January in Hennef?
What is the average humidity in January in Hennef?
How many days does it rain in January in Hennef?
How many days does it snow in January in Hennef?
How many hours of daylight does Hennef have in January?
When are sunrise and sunset in January in Hennef?
How many hours of sunshine does Hennef have in January?
When is the lowest UV index in Hennef?
How high is the UV index in January in Hennef?
Average temperature in January
Hennef, 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
Hennef, 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
Hennef, 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
Hennef, 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
Hennef, 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
Hennef, 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
Hennef, 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
Hennef, 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
Hennef, Germany
- Average daylight in January: 8h and 3min
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 0min).
- 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
Hennef, 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
Hennef, 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
Hennef, 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
Hennef, 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).
Hennef, Germany
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