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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Thursday 07 May 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
21.2° C
(Which is slightly warmer than usual)How big are the waves at Niyodo Rivermouth today?
The current surf forecast for Niyodo Rivermouth at 12AM is: 1.0m 8s primary swell from a Southeast direction and 0.4m 10s secondary swell from a East-southeast direction (forecast issued at 08:00pm May 07). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 May) | - | - |
| Afternoon (08 May) | - | - |
| Evening (08 May) | 3.5ft (1.1m) | 8s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 23°C on Fri morning, min 12°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 7 | Friday 8 | Saturday 9 | Sunday 10 | |||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 10 | SE 10 | SE 10 | ESE 10 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | |
178 | 136 | 122 | 125 | 82 | 200 | 260 | 200 | 189 | 163 | 163 | 163 | 163 | 163 | 163 | 163 | 154 | 148 | 145 | 142 | 142 | 142 | 127 | 127 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross | cross-off | off | cross-off | off | cross-off | cross-off | cross-on | cross-on | on | off | off | off | off | glassy | on | on | |
High Tide | 10:12PM1.42m | 8:31AM1.48m | 11:23PM1.39m | 9:30AM1.39m | 00:40AM1.41m | 11:11AM1.32m | ||||||||||||||||||
Low Tide | 3:07AM1.12m | 3:56PM0.53m | 4:21AM1.15m | 5:03PM0.61m | 6:14AM1.12m | |||||||||||||||||||
 |  |  | | |  |  | | |  | | | | | | | | | | | | | | | |
 | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — |
 | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | 6:53 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 20 | 19 | 19 | 19 | 21 | 23 | 22 | 19 | 14 | 14 | 14 | 13 | 17 | 19 | 19 | 18 | 15 | 14 | 13 | 12 | 18 | 19 | 19 |
22 | 22 | 21 | 21 | 21 | 23 | 22 | 17 | 16 | 11 | 11 | 11 | 10 | 14 | 16 | 16 | 16 | 13 | 11 | 10 | 9 | 16 | 16 | 17 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 10 | SE 10 | SE 10 | ESE 10 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 |
 kJ | 178 | 136 | 122 | 125 | 82 | 200 | 260 | 200 | 189 | 163 | 163 | 163 | 163 | 163 | 163 | 163 | 154 | 148 | 145 | 142 | 142 | 142 | 127 | 127 |
Swell 2 Height (m) Direction Period (s) | — | SE 11 | ESE 10 | ESE 10 | ESE 10 | — | — | SSE 7 | SSW 6 | SW 6 | SW 6 | SW 6 | SSW 6 | SSW 6 | WSW 6 | SW 6 | — | — | SSW 3 | — | W 3 | — | — | ENE 4 |
| kJ | — | 19 | 42 | 42 | 71 | — | — | 18 | 28 | 15 | 9 | 9 | 4 | 4 | 4 | 1 | — | — | 1 | — | 1 | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 6 | SW 6 | — | SW 5 | SW 4 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 1 | — | 1 | 1 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SSW 5 | WSW 4 | WNW 4 | WNW 4 | W 3 | W 3 | WNW 3 | NW 3 | — | SSW 2 | SSW 3 | SSW 3 | WSW 3 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 19 | 41 | 23 | 12 | 6 | 6 | 3 | 1 | — | 1 | 1 | 1 | 1 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 63 | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 51 | 51 | 0 | 0 | 0 | 0 | 0 | 330 | 85 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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