Average monthly wind speed in Leiden

On this page you will find more information about the mean monthly wind speed over the year in Leiden (Zuid-Holland), the Netherlands.

The mean wind speed in Leiden over the year fluctuates between 5 m/s (10 knots) and 6 m/s (12 knots).

An average wind speed of 5 m/s (10 knots) in April, May, June, July, August, September and October means the wind is quite constant and noticeable for much of the month. There may still be stronger gusts or calmer moments, but windy conditions are the norm. Larger branches would start swaying, and dust, leaves, and small objects would often blow around.

For outdoor activities, you’d likely feel the wind frequently pushing against you. It could make, for example, running or cycling more tiring. Still, it's not so strong that it becomes uncomfortable. The average speed is around 18 km/h or 11 mph. At this speed, wind- and kitesurfing become very enjoyable.

Wind speeds reach an average of 6 m/s (12 knots) in January, February, March, November and December; these are statistically the windiest months. This means that on most days, the air is quite windy. There may also be stronger gusts or calmer moments, but windy conditions are typical during this period. This average equates to approximately 22 km/h or 13 mph. Under these conditions, using umbrellas is usually not advisable.

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