January weather forecast
Brussels, Belgium

In comparison to the following period, January in Brussels, Belgium experiences markedly cool temperatures with a high average of only 5.7°C (42.3°F) and a cold average low of 0.7°C (33.3°F). Winter jackets are a must-have for the city's inhabitants during this time, with most days being cold and very likely cloudy. Sunshine is rarely seen, with an average of only 1.9 hours per day. Be mindful of possible snowfall days, as there's an average of 5.2 such days this month. Entering the New Year in Brussels requires resilience to the cold, humidity, and scarce daylight.

Temperature

The coldest period in Brussels is January, when temperatures fluctuate between an average high of 5.7°C (42.3°F) and a low of 0.7°C (33.3°F).

Humidity

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

Rainfall

In January, in Brussels, the rain falls for 19.2 days. Throughout January, 76mm (2.99") of precipitation is accumulated. Throughout the year, in Brussels, Belgium, there are 199.6 rainfall days, and 853mm (33.58") of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Brussels. In Brussels, Belgium, during January, snow falls for 5.2 days. In Brussels, during the entire year, snow falls for 23.7 days.

Daylight

In Brussels, the average length of the day in January is 8h and 32min.
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 08:20 and sunset at 17:31 CET.

Sunshine

In January, the average sunshine in Brussels is 1.9h.

UV index

The months with the lowest UV index in Brussels are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum daily UV index of 1 during January morphs into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.