Brussels
Belgium
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Brussels, Belgium

A beautiful slope garden with several museums in the city of Brussels, Belgium
A beautiful slope garden with several museums in the city of Brussels, Belgium
January, like December, in Brussels, Belgium, is a wintry winter month, with average temperature varying between 0.7°C (33.3°F) and 5.7°C (42.3°F).

Temperature

With an average high-temperature of 5.7°C (42.3°F) and an average low-temperature of 0.7°C (33.3°F), January is the coldest month.

Humidity

In January, the average relative humidity is 86.6%.

Rainfall

In Brussels, Belgium, it is raining for 19.2 days, with typically 76.1mm (3") of accumulated precipitation. In Brussels, Belgium, during the entire year, the rain falls for 199.6 days and collects up to 852.8mm (33.6") of precipitation.

Snowfall

Months with snowfall are January through April, November and December.

Daylight

In January, the average length of the day is 8.5h.

Sunshine

The average sunshine is 1.9h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In January, the average maximum UV index of 1 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Brussels?

With an average high-temperature of 5.7°C (42.3°F) and an average low-temperature of 0.7°C (33.3°F), January is the coldest month in Brussels, Belgium.

What is the temperature in January in Brussels?

In January, the average high-temperature is 5.7°C (42.3°F), and the average low-temperature is 0.7°C (33.3°F).

What is the average humidity in January in Brussels?

The average relative humidity in January in Brussels, Belgium, is 86.6%.

How much does it rain in Brussels in January?

In January, in Brussels, the rain falls for 19.2 days. Throughout January, 76.1mm (3") of precipitation is accumulated.

How many days does it snow in January in Brussels?

In Brussels, during January, snow falls for 5.2 days.

How many hours of daylight does Brussels have in January?

The average length of the day in January in Brussels is 8.5h.

How many hours of sunshine does Brussels have in January?

In January, the average sunshine is 1.9h.

What is the month with the lowest UV index in Brussels?

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Brussels.

What is the UV index reading in January in Brussels?

The average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.
Average temperature in January - Brussels, Belgium
  • Average high temperature in January: 5.7°C

The warmest month (with the highest average high temperature) is July (23°C).
The month with the lowest average high temperature is January (5.7°C).

  • Average low temperature in January: 0.7°C

The month with the highest average low temperature is July (14°C).
Coldest months (with the lowest average low temperature) are January and February (0.7°C).

Average humidity in January - Brussels, Belgium
  • Average humidity in January: 86.6%

The month with the highest relative humidity is December (88.8%).
The month with the lowest relative humidity is April (72.5%).

Average rainfall in January - Brussels, Belgium
  • Average rainfall in January: 76.1mm

The wettest month (with the highest rainfall) is December (81mm).
The driest month (with the lowest rainfall) is April (51.3mm).

Average rainfall days in January - Brussels, Belgium
  • Average rainfall days in January: 19.2 days

The month with the highest number of rainy days is December (19.3 days).
The month with the lowest number of rainy days is July (14.3 days).

Average snowfall days in January - Brussels, Belgium
  • Average snowfall days in January: 5.2 days

The month with the highest number of snowfall days is February (5.9 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January / Average sunshine in January - Brussels, Belgium
  • Average daylight in January: 8.5h

The month with the longest days is June (Average daylight: 16.4h).
The month with shortest days is December (Average daylight: 8h).

  • Average sunshine in January: 1.9h

The month with most sunshine is July (Average sunshine: 6.5h).
The month with least sunshine is December (Average sunshine: 1.5h).

Average UV index in January - Brussels, Belgium
  • Average UV index in January: 1

The month with the highest UV index is June (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 1).