The highest day temperature in January 2025 was 52°F. The lowest night temperature was 22°F. The average values for day and night temperatures during January were 39.4°F и 34.7°F respectivly.

The average sea surface temperature in January 2025 for Brussel was 41.1°F. The maximum and minimum values were 39.6°F and 43.4°F respectively.

Most of the days in January are gloomy but you can also expect sunny days.

Precipitation total in January for Brussel is 2.3 in.

The average wind speed in January is 11.4 mph. It makes January one of the most windy months of the year for Brussel.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Brussel in January is 3.2 hours.