島武意海岸
Hokkaidō · Japan
Rating right now
島武意海岸 is a NW-facing sand beach on the Japan shoreline, opening onto the Hakodate Bay — it catches W–NE swell, and offshore SE–S winds tidy the banks through april–october.
Today's surf at 島武意海岸
Updated 13:29 spot time
島武意海岸 surf report for Thursday 1 Oct: waves 0.9 m–2.5 m double overhead+, 0.6 m WSW swell at 7.05 s. Wind up to 32 km/h WSW. Water 20°C. Best surf window around 23:00 — good (4/5) with 29 km/h W wind.
Snapshot refreshed hourly — the live hourly forecast below updates in real time.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~17.4°C (63.3°F) on average
Jan
7.6°C
45.7°F · 4.8–10.7°C
Feb
6.4°C
43.5°F · 4.5–9.2°C
Mar
6.1°C
43°F · 4.9–7.2°C
Apr
8°C
46.4°F · 6.3–10°C
May
10.3°C
50.5°F · 8–13.2°C
Jun
14.3°C
57.7°F · 11.1–17.3°C
Jul
18.9°C
66°F · 16.3–21.5°C
Aug
21.8°C
71.2°F · 19.8–24.6°C
Sep
21.4°C
70.5°F · 18.8–24.1°C
Oct
17.4°C
63.3°F · 13.8–22.5°C
Nov
12.8°C
55°F · 6.2–15.3°C
Dec
9.8°C
49.6°F · 6.2–12.7°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
W–NE
Best wind
SE–S
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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