Average monthly wind speed in Hachijojima

The mean monthly wind speed over the year in Hachijojima (), Japan.

Throughout the year, wind speeds in Hachijojima average from 4 m/s (8 knots) and increase to 6 m/s (12 knots).

During July and August, 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.

The windiest time of year, January, February, March and December sees average wind speeds of 6 m/s (12 knots). This means most days have strong breezes that make entire trees sway and make umbrellas difficult to control. Wind pressure is clearly felt. The speed translates to 21.6 kilometers per hour or 13.4 miles per hour. While some moments are calmer or more intense, windy conditions dominate this period.

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