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
The month of January, characterized by an average high of 5°C (41°F) and a low of 1°C (33.8°F), is recognized as the coldest.Humidity
In January, the average relative humidity in Hoeilaart is 87%.Rainfall
In Hoeilaart, in January, it is raining for 14.6 days, with typically 37mm (1.46") of accumulated precipitation. In Hoeilaart, during the entire year, the rain falls for 179.3 days and collects up to 469mm (18.46") of precipitation.Snowfall
January through March, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 4.1 days and accumulates 34mm (1.34") of snow.Daylight
The average length of the day in January in Hoeilaart is 8h and 33min.On the first day of the month, sunrise is at 08:44 and sunset at 16:46. On the last day of January, sunrise is at 08:19 and sunset at 17:31 CET.
Sunshine
In Hoeilaart, the average sunshine in January is 3.9h.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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 2 in January transforms into this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What month is the coldest in Hoeilaart?
How cold is it in Hoeilaart in January?
What is the average humidity in January in Hoeilaart?
How much does it rain in Hoeilaart in January?
When does it snow the most in Hoeilaart?
How many days does it snow in January in Hoeilaart?
What is the average length of the day in January in Hoeilaart?
When is the sunrise / sunset in January in Hoeilaart?
How long on average sun shines in January in Hoeilaart?
When is the lowest UV index in Hoeilaart?
What is the UV index reading in January in Hoeilaart?
Average temperature in January
Hoeilaart, Belgium
- Average high temperature in January: 5°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (5°C).
- Average low temperature in January: 1°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure in January
Hoeilaart, Belgium
- Average pressure in January: 1016.2mbar
The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in January
Hoeilaart, Belgium
- Average wind speed in January: 17.2km/h
The windiest month (with the highest average wind speed) is December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in January
Hoeilaart, Belgium
- Average humidity in January: 87%
The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are April, July and August (75%).
Average rainfall in January
Hoeilaart, Belgium
- Average rainfall in January: 37mm
The wettest month (with the highest rainfall) is December (54mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in January
Hoeilaart, Belgium
- Average rainfall days in January: 14.6 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (11.6 days).
Average snowfall in January
Hoeilaart, Belgium
- Average snowfall in January: 34mm
The month with the highest snowfall is January (34mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in January
Hoeilaart, Belgium
- Average snowfall days in January: 4.1 days
The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Hoeilaart, 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 months with the most sunshine are July and August (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in January
Hoeilaart, Belgium
- Average sunshine days in January: 11.9 days
The month with the most sunshine days is September (14.6 days).
The months with the least sunshine days are February, August and December (10.9 days).
Average UV index in January
Hoeilaart, 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
Hoeilaart, Belgium
- Average cloud cover in January: 61
The month with the most cloud cover is December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in January
Hoeilaart, Belgium
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Hoeilaart, Belgium
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