Shonan Surf Forecast
Free surf forecast for Shonan, Japan — 1 surf spot. Wave height, swell, wind, tide and live buoy conditions with a 16-day outlook, no subscription, updated daily on SwellByte.
Best surf spot in Shonan by day
Top-rated of 1 spot each day
WedOct 28Kugenuma★★★★★2.7ftbest 6amThuOct 29Kugenuma★★★★★2.4ftFriOct 30Kugenuma★★★★★2.8ftbest 3pmSatOct 31Kugenuma★★★★★4.5ftbest 12pmSunNov 1Kugenuma★★★★★5.3ftMonNov 2Top pickKugenuma★★★★★6.5ftbest 9pmTueNov 3Kugenuma★★★★★5.7ftWedNov 4Kugenuma★★★★★6.1ftbest 3pmThuNov 5Kugenuma★★★★★6.9ftFriNov 6Kugenuma★★★★★6.6ftSatNov 7Kugenuma★★★★★6.7ftbest 9pmSunNov 8Kugenuma★★★★★7.3ftMonNov 9Kugenuma★★★★★2.7ftTueNov 10Kugenuma★★★★★1.5ftWedNov 11Kugenuma★★★★★1.1ftThuNov 12Kugenuma★★★★★0.0ft
Surf spots in Shonan
Best wind spot in Shonan
Where the wind is best for kitesurfing, wing foiling and windsurfing over the next few days — rated on cross-shore direction and strength in knots, not on waves.
Monthly conditions in Shonan
How often each surf size shows up by month, 2020–2024, measured near Kugenuma. Bars fill from the bottom by the share of days reaching each surf size; white at the top is smaller days. The percentage is the chance of a surfable day.
2–4ft4–6ft6–8ft8–12ft12ft+
Jan
9%
Feb
20%
Mar
25%
Apr
27%
May
23%
Jun
13%
Jul
13%
Aug
27%
Sep
24%
Oct
17%
Nov
27%
Dec
23%
Swell period
7s
9s
9s
10s
9s
8s
8s
10s
9s
11s
9s
8s
Water temp
62°F
60°F
61°F
63°F
66°F
71°F
77°F
82°F
80°F
75°F
71°F
65°F