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.
Niyodo Rivermouth surf forecast
Model forecast for swell, wind and tide.
Today's Conditions
Find FlightsLocation & Conditions
Hourly Forecast, Tide & Strike Windows
Tide times today
Strike Score Breakdown
Plan Your Strike
Return flights to KCZ, departing today with a 5-day trip window.
Search Flights on SkyscannerLocation & Conditions
Know when Asia is about to fire
Get the best strike windows in Asia — and worldwide — in your inbox every Monday & Thursday. Live Strike Scores, the swell behind them, zero fluff.
Get the full Niyodo Rivermouth trip window
Pro unlocks the 10-day forecast window, unlimited alerts, and custom spot tracking that help turn a good-looking surf report into a better travel decision.
10-day window
See the trip window before flights get expensive.
Unlimited alerts
Let the app watch your score threshold for you.
Custom spots
Track the breaks that actually matter to your travel plans.
Spot Details
CustomizeCustomize this spotSwell Requirements
- Optimal direction
- SSE (150°)
- Direction range
- 110° - 190°
- Size range
- 1.2m - 3.5m
- Ideal size
- 2.2m - 2.9m
- 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
Access: Car essential. Outside Kochi city.
Frequently Asked Questions
What tide is best at Niyodo Rivermouth?
The Niyodo Rivermouth profile favors mid tide, ideally between 0.4m and 1.3m on the local tide chart. Compare this preference with the forecast tide and local conditions before choosing a session.
What wind direction is offshore at Niyodo Rivermouth?
The Niyodo Rivermouth profile uses wind from N (350°) as its preferred direction, with an offshore range of 310° to 30°. Wind speed matters too: light winds outside that range can still produce surfable conditions, while strong offshore winds can make takeoffs difficult.
What swell size and direction work best at Niyodo Rivermouth?
The Niyodo Rivermouth scoring profile favors swell from SSE (110° to 190°), a swell-height range of 1.2m to 3.5m, and a reference period of 14s. These are model inputs, not guaranteed breaking-wave heights or a promise that the surf will suit every ability.
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?
The spot profile lists KCZ as a nearby airport. The estimated road transfer is 30 minutes. 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.