親不知海水浴場
Niigata · Japan
Rating right now
A april–october beach on the Sea of Japan near Niigata, 親不知海水浴場 is exposed to N swell — W–NE on the forecast is when it lights up, ideally with a SE–S wind.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~25.8°C (78.4°F) on average
Jan
12.9°C
55.2°F · 10.9–15°C
Feb
10.9°C
51.6°F · 9.4–12.5°C
Mar
9.9°C
49.8°F · 5.4–11.5°C
Apr
11.6°C
52.9°F · 9.9–13.3°C
May
15.3°C
59.5°F · 10.5–18.4°C
Jun
19.8°C
67.6°F · 15.2–21.9°C
Jul
24°C
75.2°F · 21.1–28.2°C
Aug
27.2°C
81°F · 24.2–29.4°C
Sep
25.8°C
78.4°F · 22.9–29.2°C
Oct
22.3°C
72.1°F · 19.6–26.3°C
Nov
18.7°C
65.7°F · 17.1–20.7°C
Dec
15.7°C
60.3°F · 12–18°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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