Illustration — no photo of this spot yet
Kaifu Rivermouth
A powerful, hollow right-hand rivermouth break over a boulder bottom where the Kaifu River meets the Pacific, by Kaifu station on Tokushima's Shikoku coast. Picks up the autumn typhoon swell and a consistent winter NE windswell.
Next 7 days
We don't have a forecast for Kaifu Rivermouth over the next week yet. Check back once the outlook below has days to compare.
Surf outlook
We don't have a forecast outlook for Kaifu Rivermouth yet. The seasonal guidance below is based on long-run averages, not on this week.
Live conditions
We don't have a current forecast for Kaifu Rivermouth. The seasonal guidance below is based on long-run averages, not on today.
Surf Snapshot
Estimated seasonal guidance — not a live forecast.
When to surf Kaifu Rivermouth, month by month
Estimated from our authored seasonality — not a live forecast.
Peak season: Sept (All-time).
| Month | Surf consistency |
|---|---|
| Jan | Moderate |
| Feb | Moderate |
| Mar | Inconsistent |
| Apr | Inconsistent |
| May | Rare |
| Jun | Rare |
| July | Inconsistent |
| Aug | High |
| Septpeak | All-time |
| Oct | High |
| Nov | Moderate |
| Dec | Moderate |
Does this wave fit your level?
Rated for Levels 5-7 · Best at Level 6.
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Find my Level →Beginner notes
Experienced surfers only -- a boulder-bottom rivermouth with real power and a river current, not a forgiving beach break.
Hazards
- powerful, hollow break over boulders -- not a beginner wave
- river current at the mouth can be strong after rain
Nearby spots
The closest graded spots to Kaifu Rivermouth, straight-line distance.
- Ikumi~10 km · Levels 2-5
Best months to surf here
In-season months for Japan: Shikoku & Kyushu, from our editors’ season calendar.
How this spot is sourced
Cross-checked against 3 sources, last checked October 2026.
Sources disagree on exact position. Treat that figure as unsettled — we would rather say so than pick one and sound certain.