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
January
Weather in January
Temperature
January, with average temperatures reaching a high of 4.8°C (40.6°F) and a low of 0.8°C (33.4°F), is the coldest month.Humidity
The average relative humidity in January is 87%.Rainfall
In January, in Roosbeek, the rain falls for 16.2 days. Throughout January, 41mm (1.61") of precipitation is accumulated. In Roosbeek, during the entire year, the rain falls for 196.2 days and collects up to 525mm (20.67") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Roosbeek, during January, snow falls for 5.1 days and regularly aggregates up to 37mm (1.46") of snow. Throughout the year, there are 16.4 snowfall days, and 124mm (4.88") of snow is accumulated.Daylight
In January, the average length of the day is 8h and 32min.On the first day of the month, sunrise is at 08:42 and sunset at 16:44. On the last day of January, sunrise is at 08:18 and sunset at 17:29 CET.
Sunshine
The average sunshine in January is 3.8h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In January, a regular UV index of 2 translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
Is it cold during January?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
How many hours of daylight does Roosbeek have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Roosbeek, Belgium
- Average high temperature in January: 4.8°C
The warmest months (with the highest average high temperature) are July and August (22.9°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in January: 0.8°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is February (0.7°C).
Average pressure in January
Roosbeek, Belgium
- Average pressure in January: 1016.3mbar
The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1012.7mbar).
Average wind speed in January
Roosbeek, Belgium
- Average wind speed in January: 17.3km/h
The windiest month (with the highest average wind speed) is December (18.2km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in January
Roosbeek, Belgium
- Average humidity in January: 87%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (75%).
Average rainfall in January
Roosbeek, Belgium
- Average rainfall in January: 41mm
The wettest months (with the highest rainfall) are June and December (56mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in January
Roosbeek, Belgium
- Average rainfall days in January: 16.2 days
The months with the highest number of rainy days are May and June (19.1 days).
The month with the least rainy days is September (13.8 days).
Average snowfall in January
Roosbeek, Belgium
- Average snowfall in January: 37mm
The month with the highest snowfall is February (46mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Roosbeek, Belgium
- Average snowfall days in January: 5.1 days
The months with the highest number of snowfall days are January and February (5.1 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
Roosbeek, Belgium
- 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: 3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in January
Roosbeek, Belgium
- Average sunshine days in January: 9.9 days
The month with the most sunshine days is September (13 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in January
Roosbeek, Belgium
- Average UV index in January: 2
The months with the highest UV index are 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 January
Roosbeek, Belgium
- 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 41).
Average visibility in January
Roosbeek, Belgium
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (9km).
The month with the lowest visibility is December (8km).
