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 spot in Shonan by day
Top-rated of 1 spot each dayThuJul 30Kugenuma★★★★★1.6ftFriJul 31Kugenuma★★★★★1.2ftSatAug 1Kugenuma★★★★★2.0ftSunAug 2Kugenuma★★★★★3.7ftbest 9pmMonAug 3Kugenuma★★★★★5.4ftTueAug 4Top pickKugenuma★★★★★7.3ftWedAug 5Kugenuma★★★★★7.1ftThuAug 6Kugenuma★★★★★7.0ftFriAug 7Kugenuma★★★★★6.6ftSatAug 8Kugenuma★★★★★5.2ftSunAug 9Kugenuma★★★★★5.1ftMonAug 10Kugenuma★★★★★4.9ftTueAug 11Kugenuma★★★★★3.4ftWedAug 12Kugenuma★★★★★2.6ftThuAug 13Kugenuma★★★★★3.0ftFriAug 14Kugenuma★★★★★4.2ft
Surf spots in Shonan
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