北海岸
Fukuoka · Japan
Rating right now
北海岸 is a SW-facing sand beach on the Japan shoreline, opening onto the Gotō Sea — it catches S–W swell, and offshore N–E winds tidy the banks through april–october.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~25.7°C (78.3°F) on average
Jan
15.5°C
59.9°F · 13.2–17.8°C
Feb
13.8°C
56.8°F · 12.6–15.4°C
Mar
14°C
57.2°F · 12.4–15.2°C
Apr
15.4°C
59.7°F · 13.7–17.8°C
May
18.1°C
64.6°F · 14.6–20.4°C
Jun
21°C
69.8°F · 18.3–23.3°C
Jul
24.9°C
76.8°F · 21.9–28.2°C
Aug
27.4°C
81.3°F · 24.3–31.3°C
Sep
25.7°C
78.3°F · 22.5–29.2°C
Oct
23°C
73.4°F · 21.5–25.5°C
Nov
20.4°C
68.7°F · 19.2–21.3°C
Dec
17.8°C
64°F · 15.4–19.3°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
S–W
Best wind
N–E
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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