Katase Eastside Beach
Kanagawa · Japan
Rating right now
Katase Eastside Beach is a S-facing sand beach on the Japan shoreline, opening onto the Uchi Sea — it catches SE–SW swell, and offshore NW–NE 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: ~23.4°C (74.1°F) on average
Jan
16.6°C
61.9°F · 14.8–18.6°C
Feb
15.6°C
60.1°F · 14–17.7°C
Mar
15.6°C
60.1°F · 13.2–17.4°C
Apr
17°C
62.6°F · 14.9–19.7°C
May
19.1°C
66.4°F · 14.2–21.5°C
Jun
21.5°C
70.7°F · 19.6–23°C
Jul
24.2°C
75.6°F · 22–27.1°C
Aug
26.4°C
79.5°F · 23.2–28.1°C
Sep
25.7°C
78.3°F · 23.4–27.8°C
Oct
23.4°C
74.1°F · 20.1–26.1°C
Nov
20.8°C
69.4°F · 17.7–23.4°C
Dec
18.7°C
65.7°F · 16.5–21.9°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
SE–SW
Best wind
NW–NE
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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