Surf Forecasts:
Niyodo Rivermouth surf forecast from 4 Jun 2026:
- Best quality surf: Sunday 7 Jun, 12PM (local time) - 11ft (3.5m), 8s period, E swell with cross-shore winds.
- Most powerful swell: Sunday 7 Jun, 3PM (local time) - 13ft (4.0m), 9s period, E swell with 2,294 kJ wave energy.
- Next surfable swell (1★+): Friday 5 Jun, 12AM (local time) - 2ft (0.6m), 7s period with S swell.
Best Forecast Surf Conditions for Niyodo Rivermouth this week:
The surf forecast for Niyodo Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jun 05) at 12AM. The primary swell is predicted to be 0.6m and 7s period with a secondary swell of 0.3m and 11s. Another secondary swell of 0.9m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Niyodo Rivermouth in the next 16 days are 4.0m 9s and forecast to arrive on Sunday (Jun 07) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 9s period and expected on Sunday (Jun 07) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 5th Jun) | 2ft (0.6m) 7s |
| Best Surf | 12PM (Sun 7th Jun) | 11ft (3.5m) 8s |
| Most Powerful | 3PM (Sun 7th Jun) | 13ft (4.0m) 9s |
Table - best surf conditions forecast for Niyodo Rivermouth over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 88mm), heaviest during Sun morning. Warm (max 23°C on Fri morning, min 19°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 27mm), heaviest during Sun afternoon. Warm (max 25°C on Mon morning, min 17°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thu 4 | Friday 5 | Saturday 6 | Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | S 7 | S 7 | E 6 | E 8 | ESE 8 | ESE 7 | ESE 6 | ESE 6 | ESE 7 | E 9 | E 9 | E 9 | E 9 | E 8 | S 7 | S 7 | S 7 | S 7 | S 7 | SSW 7 | S 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 86 | 34 | 185 | 762 | 472 | 225 | 170 | 115 | 529 | 2294 | 961 | 219 | 157 | 46 | 39 | 25 | 25 | 39 | 27 | 17 | 24 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | glassy | cross | glassy | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-on | off | glassy | on | off | glassy | on | glassy | glassy |
High Tide | 9:07PM1.57m | 7:53AM1.59m | 9:49PM1.54m | 8:37AM1.52m | 10:33PM1.53m | 9:33AM1.44m | 11:21PM1.53m | 10:47AM1.37m | 00:10AM1.55m | 12:18PM1.35m | 1:00AM1.58m | 1:50PM1.40m | 1:49AM1.62m | ||||||||
Low Tide | 2:25AM1.02m | 2:51PM0.36m | 3:12AM1.02m | 3:33PM0.45m | 4:10AM1.00m | 4:21PM0.54m | 5:19AM0.95m | 5:17PM0.64m | 6:31AM0.84m | 6:22PM0.73m | 7:37AM0.68m | 7:33PM0.81m | 8:35AM0.50m | ||||||||
 |  |  |  |  | |  |  |  | | | | |  | | | | | |  | | |
 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 |
 | 7:10 | — | — | 7:10 | — | — | 7:12 | — | — | 7:12 | — | — | 7:13 | — | — | 7:13 | — | — | 7:14 | — | 7:14 |
mm | 6 | 10 | — | — | — | — | 1 | 20 | 51 | 25 | — | — | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 23 | 22 | 21 | 23 | 23 | 21 | 20 | 21 | 20 | 25 | 25 | 20 | 23 | 23 | 21 | 24 | 23 | 21 | 23 |
Feels °C | 25 | 24 | 24 | 23 | 23 | 24 | 25 | 22 | 20 | 20 | 21 | 26 | 25 | 21 | 22 | 23 | 24 | 24 | 23 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | S 6 | S 6 | SSW 7 | S 7 | S 7 | SSW 6 | SSW 7 | — | E 9 | E 9 | E 9 | SSW 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SSW 7 | S 7 |
| kJ | 86 | 34 | 38 | 30 | 51 | 34 | 22 | 14 | 9 | — | 961 | 219 | 157 | 43 | 39 | 25 | 25 | 39 | 27 | 17 | 24 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | SE 11 | SE 11 | E 15 | SE 12 | SE 11 | SE 11 | SE 11 | — | — | SSW 10 | SSW 9 | SSW 8 | E 8 | E 8 | ENE 10 | E 9 | E 11 | E 10 | SE 8 | S 9 |
| kJ | 17 | 19 | 20 | 4 | 6 | 20 | 19 | 19 | — | — | 734 | 169 | 87 | 46 | 11 | 19 | 6 | 9 | 9 | 3 | 16 |
Swell 3 Height (m) Direction Period (s) | ESE 11 | SE 13 | — | — | E 15 | E 16 | E 15 | E 15 | — | — | SE 8 | SE 7 | E 14 | E 11 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | E 9 | SE 9 |
| kJ | 12 | 7 | — | — | 5 | 19 | 19 | 4 | — | — | 35 | 27 | 4 | 10 | 4 | 3 | 3 | 3 | 3 | 7 | 3 |
Wind waves Height (m) Direction Period (s) | — | ESE 4 | E 6 | E 8 | ESE 8 | ESE 7 | ESE 6 | ESE 6 | ESE 7 | E 9 | — | — | — | — | NNW 3 | — | — | — | ESE 2 | SSW 4 | — |
| kJ | — | 25 | 185 | 762 | 472 | 225 | 170 | 115 | 529 | 2294 | — | — | — | — | 1 | — | — | — | 1 | 8 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 224 | 0 | 0 | 29 | 432 | 279 | 243 | 0 | 0 | 51 | 0 | 0 | 539 | 233 | 0 | 283 | 297 | 51 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Niyodo Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Niyodo Rivermouth Surf forecast
The above surf forecast table for Niyodo Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Niyodo Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Niyodo Rivermouth surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Niyodo Rivermouth) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Niyodo Rivermouth may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Niyodo Rivermouth is 15 km (9 miles) from Kochi. If you plan a holiday in Shikoku, look for hotels and other accommodation in Kochi. Kochi has rooms for a wide range of budgets as well as car hire and transport links.
Nearest