勝島の海（砂浜）
Tokyo · Japan
Rating right now
A april–october beach on the Uchi Sea near Tokyo, 勝島の海（砂浜） is exposed to SE swell — E–S on the forecast is when it lights up, ideally with a W–N wind.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~25°C (77°F) on average
Jan
12.9°C
55.2°F · 9.9–16.9°C
Feb
11.8°C
53.2°F · 8.1–14.9°C
Mar
12.5°C
54.5°F · 10.1–15.2°C
Apr
15°C
59°F · 11.3–17.5°C
May
18.3°C
64.9°F · 15–21.4°C
Jun
21.1°C
70°F · 18.1–23.1°C
Jul
24°C
75.2°F · 21.1–27.6°C
Aug
26.2°C
79.2°F · 22.5–29.7°C
Sep
25°C
77°F · 22.2–28°C
Oct
21.7°C
71.1°F · 19.3–25.9°C
Nov
18.2°C
64.8°F · 15.6–22.2°C
Dec
15.4°C
59.7°F · 11.7–20.5°C
25-year monthly averages from the NOAA OISST satellite record — typical range min–max, not a live reading.
Know before you go
Best swell
E–S
Best wind
W–N
Break type
Beach break
Best season
April–October
Safety: Friendly by surf standards, but rip currents and drop-in etiquette still apply. Shifting sandbars create moving rip currents — learn to spot them and use them to get out back.
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