Isokoumae: weather statistics and wind history

35.3063° N, 139.327° E

16.04.2026 (Thursday)

Strong wind – choppy waves (9.6 m/s)
Wetsuit required (17.2 °C)

17.04.2026 (Friday)

Good surfing forecast: comfortable wave size 1.2 m, period 11 s
Moderate wind (7.2 m/s)
Wetsuit required (17.4 °C)

18.04.2026 (Saturday)

Good surfing forecast: comfortable wave size 1.4 m, period 12 s
Moderate wind (5.2 m/s)

19.04.2026 (Sunday)

Good surfing forecast: comfortable wave size 1.4 m, period 10 s

20.04.2026 (Monday)

Good surfing forecast: comfortable wave size 1.4 m
Moderate wind (5.7 m/s)

21.04.2026 (Tuesday)

Low wave – no surfing (1.0 m)
Moderate wind (7.1 m/s)

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Closest meteostation (21.97km):

Isokoumae Wind forecast

Wind direction is Northeast, wind speed varies between 13.4 and 20.1 mph with gusts up to 26.8 mph. The sky is cloudy with a chance of rain 0%.
Wind and wave weather forecast for Isokoumae , Japan contains detailed information about local wind speed, direction, and gusts. Wave forecast includes wave height and period.
These forecasts for Isokoumae are based on the GFS model and were created for windsurfing, kitesurfing, sailing and other extreme sports activities. All data updates 4 times a day. Predictions are available in steps from 1 to 3 hours for up to 10 days.
Use professional weather parameters: wind barbs, weather fronts, isobars, and others. Study weather history for the past 14 years (2012-2026). Create sailing, hiking and biking routes with weather in each point.
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