Average monthly wind speed in Hafnarfjördur

The mean monthly wind speed over the year in Hafnarfjördur (Capital Region), Iceland.

Wind speed in Hafnarfjördur varies across the year, ranging from 4 m/s (8 knots) to 6 m/s (12 knots).

During July, wind speed averages 4 m/s (8 knots), creating notably breezy conditions. Daily fluctuations span from gentle winds to more substantial gusts. At the average speed of 4 m/s (8 knots), small tree branches show continuous swaying motion. This wind strength equals 14.4 kilometers per hour or 8.9 miles per hour. Most plans remain feasible, though some days bring conditions strong enough to affect certain sports.

In contrast, wind speeds average 6 m/s (12 knots) during January, February, March, April, November and December; these months are known as the windiest. Most days are quite windy, with small branches moving and occasional difficulty walking against the wind. Loose objects may be blown away. The measurement represents 21.6 km/h or 13.4 mph. There may still be stronger gusts or calmer moments, but strong winds are typical.

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