串山海水浴場
Nagasaki · Japan
Rating right now
串山海水浴場 is a NW-facing sand beach on the Japan shoreline, opening onto the Gotō Sea — it catches W–N swell, and offshore E–S 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: ~26.2°C (79.2°F) on average
Jan
16.1°C
61°F · 14.1–17.7°C
Feb
14.8°C
58.6°F · 14–16.3°C
Mar
14.7°C
58.5°F · 13.7–15.7°C
Apr
15.9°C
60.6°F · 14.3–17.8°C
May
18.4°C
65.1°F · 14.6–20.2°C
Jun
21.2°C
70.2°F · 18.8–23.4°C
Jul
25.1°C
77.2°F · 21.8–28.6°C
Aug
27.8°C
82°F · 24.5–31.8°C
Sep
26.2°C
79.2°F · 23.1–29.3°C
Oct
23.7°C
74.7°F · 22.3–26.5°C
Nov
21°C
69.8°F · 19.5–22.5°C
Dec
18.4°C
65.1°F · 16.2–20.2°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–N
Best wind
E–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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