January weather forecast and climate
Hoeilaart, Belgium

Weather in January

January, the same as December, is another cold winter month in Hoeilaart, Belgium, with average temperature varying between 1°C (33.8°F) and 5°C (41°F).

Temperature

The coldest month is January, with an average high-temperature of 5°C (41°F) and an average low-temperature of 1°C (33.8°F).

Humidity

In January, the average relative humidity is 87%.

Rainfall

In January, in Hoeilaart, the rain falls for 14.6 days. Throughout January, 37mm (1.46") of precipitation is accumulated. 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. The month with the most snowfall in Hoeilaart is January when snow falls for 4.1 days and typically aggregates up to 34mm (1.34") of snow.

Daylight

In January, the average length of the day in Hoeilaart is 8.6h.

Sunshine

In Hoeilaart, the average sunshine in January is 3.9h.

UV index

Months with the lowest UV index in Hoeilaart are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
[Resources]

FAQ

What is the coldest month in Hoeilaart?

January is the coldest month in Hoeilaart, Belgium, with an average high-temperature of 5°C (41°F) and an average low-temperature of 1°C (33.8°F).

What is the temperature in January in Hoeilaart?

In January, in Hoeilaart, Belgium, the average high-temperature is 5°C (41°F), and the average low-temperature is 1°C (33.8°F).

What is the average humidity in January in Hoeilaart?

In January, the average relative humidity in Hoeilaart is 87%.

How many days does it rain in January in Hoeilaart?

In Hoeilaart, in January, during 14.6 rainfall days, 37mm (1.46") of precipitation is typically accumulated.

How much does it snow in Hoeilaart in January?

In Hoeilaart, Belgium, in January, during 4.1 snowfall days, 34mm (1.34") of snow is typically accumulated.

What is the snowiest month in Hoeilaart?

The month with the most snowfall in Hoeilaart, Belgium, is January when snow falls for 4.1 days and typically aggregates up to 34mm (1.34") of snow.

What is the average length of the day in January in Hoeilaart?

In January, the average length of the day in Hoeilaart, Belgium, is 8.6h.

How many hours of sunshine does Hoeilaart have in January?

In January, the average sunshine in Hoeilaart, Belgium, is 3.9h.

What are the months with the lowest UV index in Hoeilaart?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in January in Hoeilaart?

In January, the average daily maximum UV index in Hoeilaart is 2. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.

Average temperature in January
Hoeilaart, Belgium

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).

[Resources]

Average pressure in January
Hoeilaart, Belgium

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).

[Resources]

Average wind speed in January
Hoeilaart, Belgium

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).

[Resources]

Average humidity in January
Hoeilaart, Belgium

Average humidity in January - Hoeilaart, Belgium
  • Average humidity in January: 87%

The month with the highest relative humidity is December (88%).
Months with the lowest relative humidity are April, July and August (75%).

[Resources]

Average rainfall in January
Hoeilaart, Belgium

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).

[Resources]

Average rainfall days in January
Hoeilaart, Belgium

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).

[Resources]

Average snowfall in January
Hoeilaart, Belgium

Average snowfall in January - Hoeilaart, Belgium
  • Average snowfall in January: 34mm

The month with the highest snowfall is January (34mm).
Months with the least snowfall are April, May, June, July, August and September (0mm).

[Resources]

Average snowfall days in January
Hoeilaart, Belgium

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).
Months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in January /
Average sunshine in January
Hoeilaart, Belgium

Average daylight in January / Average sunshine in January - Hoeilaart, Belgium
  • Average daylight in January: 8.6h

The month with the longest days is June (Average daylight: 16.4h).
The month with the shortest days is December (Average daylight: 8.1h).

  • Average sunshine in January: 3.9h

Months with the most sunshine are July and August (Average sunshine: 9h).
The month with the least sunshine is December (Average sunshine: 3.6h).

[Resources]

Average sunshine days in January
Hoeilaart, Belgium

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).
Months with the least sunshine days are February, August and December (10.9 days).

[Resources]

Average UV index in January
Hoeilaart, Belgium

Average UV index in January - Hoeilaart, Belgium
  • Average UV index in January: 2

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 2).

[Resources]

Average cloud cover in January
Hoeilaart, Belgium

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).
Months with the least cloud cover are April and August (Cloud cover 42).

[Resources]

Average visibility in January
Hoeilaart, Belgium

Average visibility in January - Hoeilaart, Belgium
  • Average visibility in January: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

[Resources]