Average monthly wind speed in Järfälla

The mean monthly wind speed over the year in Järfälla (Stockholm county), Sweden.

The average annual wind speed in Järfälla spans from 3 m/s (6 knots) to 4 m/s (8 knots).

The average wind speed is 3 m/s (6 knots) during January, February, March, April, July, August, September, November and December, indicating consistent yet manageable airflow. Daily conditions vary, with some days bringing stronger breezes. At the average speed, foliage moves steadily, and flags show noticeable motion. In common units, this equals about 11 kilometers per hour or 6.7 miles per hour. Overall, it's are pleasant months to be outdoors in terms of wind conditions.

The windiest time of year, May, June and October 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 Järfälla’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Järfälla climate page.