大井海水浴場
Coastal areas · Japan
Rating right now
A april–october beach on the Seto Inland Sea near Coastal areas, 大井海水浴場 is exposed to NE swell — N–SE on the forecast is when it lights up, ideally with a SW–W wind.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~26.5°C (79.7°F) on average
Jan
12.9°C
55.2°F · 8.9–17.6°C
Feb
11.2°C
52.2°F · 7.7–16.8°C
Mar
12.1°C
53.8°F · 8.2–18.8°C
Apr
14.2°C
57.6°F · 10.3–19.6°C
May
17°C
62.6°F · 13.3–20.8°C
Jun
21.1°C
70°F · 18.5–23.6°C
Jul
24.9°C
76.8°F · 22.7–27.3°C
Aug
27.3°C
81.1°F · 25.6–28.5°C
Sep
26.5°C
79.7°F · 24.8–28.5°C
Oct
23.7°C
74.7°F · 21.5–26.6°C
Nov
19.7°C
67.5°F · 17–22.2°C
Dec
16.3°C
61.3°F · 12.3–18.8°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
N–SE
Best wind
SW–W
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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