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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Sunday 26 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 12AM is: 2.3m 8s primary swell from a East-southeast direction and 0.1m 13s secondary swell from a Southeast direction, 1.0m 6s secondary swell from a South-southwest direction (forecast issued at 08:00pm April 26). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Apr) | - | - |
| Afternoon (27 Apr) | - | - |
| Evening (27 Apr) | 8ft (2.5m) | 8s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 47mm), heaviest during Sun night. Warm (max 23°C on Mon afternoon, min 15°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 26 | Monday 27 | Tuesday 28 | Wednesday 29 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 7 | SE 12 | SE 12 | SE 12 | SE 12 | ESE 12 | SSW 4 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SW 6 | SW 5 | |
1365 | 1003 | 713 | 441 | 181 | 123 | 99 | 73 | 57 | 42 | 42 | 26 | 27 | 23 | 23 | 22 | 14 | 20 | 42 | 30 | 33 | 21 | 15 | 7 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross | cross-off | off | off | off | glassy | on | on | glassy | cross-off | off | cross-off | off | off | off | glassy | |
High Tide | 3:30AM1.59m | 3:24PM1.52m | 3:59AM1.65m | 4:15PM1.62m | 4:25AM1.69m | |||||||||||||||||||
Low Tide | 8:48PM0.56m | 9:35AM0.78m | 9:39PM0.57m | 10:10AM0.61m | 10:19PM0.59m | 10:42AM0.45m | ||||||||||||||||||
 |  | |  |  |  | | | |  |  | |  | | | | | | |  |  | | | | |
 | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:18 | — | — | — | — |
 | 6:43 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | 6:45 |
15 | 31 | 13 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 16 | 16 | 16 | 15 | 19 | 22 | 23 | 20 | 17 | 16 | 16 | 16 | 20 | 20 | 21 | 20 | 18 | 18 | 17 | 16 | 17 | 17 | 17 |
16 | 15 | 15 | 15 | 14 | 18 | 21 | 23 | 20 | 16 | 15 | 15 | 15 | 20 | 19 | 21 | 21 | 19 | 18 | 16 | 15 | 16 | 16 | 17 | |
Swell 1 Height (m) Direction Period (s) | SE 13 | SE 13 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | ESE 7 | E 8 | E 8 | E 8 | E 8 | S 5 | SSW 5 | SSW 6 | SSW 6 | SW 6 | SW 5 |
 kJ | 7 | 7 | 713 | 441 | 181 | 123 | 99 | 73 | 57 | 42 | 42 | 26 | 27 | 18 | 18 | 10 | 10 | 10 | 25 | 30 | 33 | 21 | 15 | 7 |
Swell 2 Height (m) Direction Period (s) | SW 7 | SE 13 | SE 13 | SE 13 | S 6 | S 6 | S 6 | SE 12 | SSW 6 | SSW 6 | SSW 5 | SW 5 | SSW 5 | SSW 5 | SE 12 | SE 12 | ESE 12 | ESE 12 | E 8 | E 8 | E 8 | SSE 6 | E 8 | SSE 5 |
| kJ | 2 | 7 | 7 | 7 | 50 | 36 | 16 | 23 | 6 | 6 | 6 | 7 | 3 | 3 | 23 | 22 | 14 | 14 | 10 | 5 | 10 | 3 | 4 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | SSW 6 | SE 13 | SE 13 | SE 13 | SE 12 | ESE 12 | SE 12 | SW 3 | SE 12 | ESE 12 | SE 12 | SE 12 | SSW 5 | SSE 5 | SE 6 | SSE 6 | ESE 12 | ESE 11 | ESE 11 | E 8 | SSE 5 | E 8 |
| kJ | — | — | 37 | 7 | 7 | 26 | 23 | 14 | 23 | 2 | 23 | 14 | 23 | 23 | 2 | 2 | 2 | 3 | 13 | 13 | 12 | 10 | 2 | 4 |
Wind waves Height (m) Direction Period (s) | ESE 9 | ESE 8 | SSW 6 | NNW 3 | NNW 3 | NW 3 | WNW 3 | S 6 | SW 3 | — | — | — | ENE 2 | — | — | SSW 4 | SSW 4 | SSW 4 | SSW 5 | — | — | NW 3 | NW 3 | — |
| kJ | 1365 | 1003 | 70 | 6 | 3 | 3 | 1 | 16 | 2 | — | — | — | 1 | — | — | 2 | 10 | 20 | 42 | — | — | 2 | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 243 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 0 | 0 | 29 | 0 | 51 | 283 | 297 | 183 | 233 | 0 | 29 | 0 | 29 | 573 | 279 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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