- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 am Monday 27 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Niyodo Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Niyodo Rivermouth sea temperature is
19.9° C
(Which is normal for this time of year)How big are the waves at Niyodo Rivermouth today?
The current surf forecast for Niyodo Rivermouth at 12PM is: 1.0m 8s primary swell from a East-southeast direction and 0.5m 6s secondary swell from a South direction (forecast issued at 08:00am April 27). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Apr) | 3.5ft (1.1m) | 8s |
| Afternoon (27 Apr) | 3ft (0.9m) | 7s |
| Evening (27 Apr) | 2.5ft (0.7m) | 7s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Wed afternoon. Warm (max 22°C on Mon morning, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thu 30 | |||||||||||||||||||||
6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | SE 12 | SE 12 | SE 12 | ESE 12 | ESE 12 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | E 10 | E 10 | E 10 | |
210 | 147 | 120 | 97 | 71 | 54 | 38 | 39 | 27 | 23 | 23 | 14 | 14 | 36 | 29 | 31 | 38 | 35 | 25 | 17 | 9 | 8 | 8 | 7 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-on | cross | cross-off | off | off | glassy | on | on | on | glassy | cross-off | off | off | off | cross-off | off | cross-off | off | off | off | off | |
High Tide | 3:30AM1.59m | 3:24PM1.52m | 3:59AM1.65m | 4:15PM1.62m | 4:25AM1.69m | 4:58PM1.70m | ||||||||||||||||||
Low Tide | 9:35AM0.78m | 9:39PM0.57m | 10:10AM0.61m | 10:19PM0.59m | 10:42AM0.45m | 10:54PM0.63m | ||||||||||||||||||
 | | | | |  | |  |  | | | | |  | | | | |  |  | | | | | |
 | 5:22 | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 |
 | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | 6:45 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | |
Temp °C | 15 | 19 | 22 | 22 | 21 | 17 | 16 | 16 | 16 | 19 | 20 | 21 | 20 | 18 | 18 | 17 | 16 | 18 | 17 | 15 | 14 | 14 | 13 | 13 |
14 | 17 | 21 | 21 | 21 | 17 | 15 | 15 | 16 | 18 | 20 | 21 | 22 | 19 | 18 | 17 | 15 | 16 | 14 | 14 | 12 | 12 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | SSW 6 | E 7 | E 7 | E 7 | ESE 7 | E 8 | E 8 | E 8 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | SSW 5 | E 10 | E 10 |
 kJ | 210 | 147 | 120 | 97 | 71 | 12 | 38 | 39 | 27 | 18 | 10 | 10 | 10 | 17 | 29 | 31 | 38 | 35 | 25 | 17 | 9 | 5 | 8 | 7 |
Swell 2 Height (m) Direction Period (s) | S 6 | S 6 | S 6 | SE 12 | SSW 3 | SE 12 | SW 5 | SW 5 | SSW 5 | SSW 5 | SE 12 | ESE 12 | ESE 12 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 4 | E 4 | SE 6 | SSW 5 | SSE 6 |
| kJ | 50 | 25 | 16 | 23 | 4 | 23 | 7 | 7 | 5 | 5 | 23 | 14 | 14 | 10 | 10 | 5 | 4 | 4 | 4 | 1 | 2 | 1 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | SE 13 | ESE 13 | SE 12 | ESE 12 | SSW 6 | SSE 6 | S 6 | ESE 12 | SE 12 | SE 12 | SSW 5 | SE 6 | SSE 6 | ESE 12 | ESE 12 | ESE 12 | SE 11 | SE 11 | SE 11 | E 8 | E 8 | E 10 | SE 11 | SE 11 |
| kJ | 7 | 16 | 23 | 14 | 6 | 3 | 2 | 14 | 23 | 23 | 2 | 1 | 3 | 14 | 13 | 13 | 5 | 5 | 5 | 4 | 4 | 8 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | NW 3 | NW 3 | — | SSW 6 | SW 4 | ESE 7 | ESE 3 | — | — | — | — | SSW 4 | SSW 4 | SSW 5 | — | — | NW 3 | — | WNW 3 | WNW 3 | NNW 2 | NNW 2 | — | — |
| kJ | 2 | 3 | — | 18 | 6 | 54 | 3 | — | — | — | — | 3 | 11 | 36 | — | — | 2 | — | 1 | 1 | 1 | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 58 | 29 | 0 | 0 | 0 | 0 | 283 | 279 | 233 | 229 | 0 | 0 | 29 | 29 | 344 | 51 | 338 | 535 | 1809 | 949 | 432 |
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.
Nearest