Inasa Beach
Shimane · Japan
Rating right now
A april–october beach on the Seto Inland Sea near Shimane, Inasa Beach is exposed to W swell — SW–NW on the forecast is when it lights up, ideally with a NE–SE wind.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~25.6°C (78.1°F) on average
Jan
14.6°C
58.3°F · 12.2–16.9°C
Feb
13.3°C
55.9°F · 12.2–14.6°C
Mar
13.3°C
55.9°F · 11.8–14.7°C
Apr
14.8°C
58.6°F · 13.2–16.4°C
May
17.3°C
63.1°F · 13.7–19.3°C
Jun
20.7°C
69.3°F · 18.5–23.2°C
Jul
24.4°C
75.9°F · 21.8–28°C
Aug
27.1°C
80.8°F · 24.9–30°C
Sep
25.6°C
78.1°F · 21.6–28.9°C
Oct
22.8°C
73°F · 21.4–25.8°C
Nov
20.1°C
68.2°F · 18.3–21.5°C
Dec
17.5°C
63.5°F · 14.5–19.4°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
SW–NW
Best wind
NE–SE
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.
Nearby spots
薗の長浜
Shimane · Japan
猪目海岸
Shimane · Japan
宍道湖西岸なぎさ公園
Shimane · Japan
秋鹿なぎさ公園
Shimane · Japan
宍道湖ふれあいパーク
Shimane · Japan
古浦海水浴場
Shimane · Japan
More beaches in Shimane →see all spots in Shimane, Japan
New to reading forecasts?
Two short guides that make the numbers above make sense.