Kugenuma Rivermouth surf forecast from 7 Oct 2026:
- Best quality surf: Wednesday 7 Oct, 12PM (local time) - 4ft (1.2m), 14s period, SE swell with glassy winds.
- Most powerful swell: Wednesday 14 Oct, 9AM (local time) - 4ft (1.2m), 15s period, SE swell with 640 kJ wave energy.
- Next surfable swell (1★+): Wednesday 7 Oct, 12PM (local time) - 4ft (1.2m), 14s period with SE swell.
Best Forecast Surf Conditions for Kugenuma Rivermouth this week:
The surf forecast for Kugenuma Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Oct 07) at 12PM. The primary swell is predicted to be 1.2m and 14s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Kugenuma Rivermouth in the next 16 days are 1.2m 15s and forecast to arrive on Wednesday (Oct 14) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Thursday (Oct 08) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Wed 7th Oct) | 4ft (1.2m) 14s |
| Best Surf | 12PM (Wed 7th Oct) | 4ft (1.2m) 14s |
| Most Powerful | 9AM (Wed 14th Oct) | 4ft (1.2m) 15s |
Table - best surf conditions forecast for Kugenuma Rivermouth over the next 16 days.
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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