Niyodo Rivermouth
Niyodo Rivermouth is Shikoku's heavy-water gem, a challenging rivermouth break that features fast, powerful right-handers when the sandbanks set up properly. The Niyodo River is famous for having some of Japan's clearest water, and when solid typhoon swells arrive, the rivermouth produces world-class cylinders. Smaller swells mellow it out for longboarding in summer, but when it's pumping, this is serious wave riding.
Today's Conditions
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Return flights to KCZ, departing today with a 5-day trip window.
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Spot Details
CustomizeCustomize this spotSwell Requirements
- Optimal direction
- SSE (150°)
- Direction range
- 110° - 190°
- Size range
- 1.2m - 3.5m
- Ideal size
- 2.8m
- Height multiplier
- 0.92×
- Ideal period
- 14s+
Wind Requirements
- Optimal direction
- N (350°)
- Offshore range
- 310° - 30°
Tide Requirements
- Optimal tide
- mid
- Optimal range
- 0.4m - 1.3m
Water temp
24°C
Wetsuit
Boardshorts / Rashguard
Difficulty
7/10
Crowd level
4/10
👥 Summer Break (Jul 20 – Aug 31) — expect extra crowds
Access: Car essential. Outside Kochi city.
Frequently Asked Questions
What tide is best at Niyodo Rivermouth?
Niyodo Rivermouth works best on a mid tide, ideally between 0.4m and 1.3m on the local tide chart. The tide chart above shows today’s strike window.
What wind direction is offshore at Niyodo Rivermouth?
Offshore wind at Niyodo Rivermouth blows from the N (350°). Anything in the 310° to 30° range grooms the faces; outside it, expect chop or bumpy conditions.
What swell size and direction work best at Niyodo Rivermouth?
Niyodo Rivermouth wants SSE swell (110° to 190°) between 1.2m and 3.5m, with a period of 14s or more for quality waves.
When is the best time of year to surf Niyodo Rivermouth?
The main season at Niyodo Rivermouth is Aug-Nov. A secondary window runs Jun, Jul. Needs solid swell to break properly. Summer logs possible.
How do I get to Niyodo Rivermouth?
Fly into KCZ, then allow about 30 minutes by road. Car essential. Outside Kochi city.
What kind of wave is Niyodo Rivermouth?
Niyodo Rivermouth is a beach break, a right-hander. Difficulty is rated 7/10.
Best Season
Peak: Aug-Nov
Secondary: Jun, Jul
Needs solid swell to break properly. Summer logs possible.