Average monthly wind speed in Brussels

Here you can view the typical wind conditions throughout the year in Brussels, (Brussels Region), Belgium.

The mean wind speed in Brussels over the year fluctuates between 3 m/s (6 knots) and 4 m/s (8 knots).

The 3 m/s (6 knots) average wind speed in April, May, June, July, August, September, October and November brings moderate air movement. Conditions can vary throughout the month, with some days experiencing stronger winds and others remaining calm. At this average speed, leaves and small branches move steadily, and flags show continuous motion. This equates to about 11 kilometers per hour or 6.7 miles per hour.

The windiest time of year, January, February, March and December has average wind speeds of 4 m/s (8 knots). This means typical days have strong breezes that make flags snap and clothing flap. Walking against the wind takes slight effort. The speed translates to 14.4 kilometers per hour or 8.9 miles per hour. While some periods are calmer or gustier, windy weather is the norm.

For more detailed information about Brussels’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Brussels climate page.