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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 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 9AM is: 1.1m 8s primary swell from a East-southeast direction and 0.6m 6s secondary swell from a South direction (forecast issued at 02:00am April 27). An open ocean swell of 0.5m 3s is not directed at the surf break. 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) | 2.5ft (0.8m) | 7s |
| Evening (27 Apr) | 2ft (0.6m) | 7s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 22°C on Mon morning, min 12°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||||||||||
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 | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | SE 12 | E 7 | SE 12 | SE 12 | SE 12 | SE 12 | ESE 12 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | |
745 | 430 | 210 | 147 | 99 | 73 | 55 | 42 | 27 | 27 | 27 | 23 | 23 | 22 | 14 | 17 | 28 | 31 | 35 | 40 | 26 | 21 | 11 | 5 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | off | off | off | off | glassy | on | on | glassy | cross-off | off | off | off | cross-off | cross-off | cross-off | off | cross-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 | |||||||||||||||||||
 |  |  | | | | |  | |  |  | | |  | | | | | | | | |  |  | |
 | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — |
19 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | |
Temp °C | 16 | 16 | 15 | 19 | 22 | 22 | 21 | 18 | 16 | 16 | 16 | 19 | 20 | 21 | 20 | 19 | 18 | 17 | 16 | 19 | 20 | 15 | 14 | 13 |
15 | 14 | 13 | 18 | 21 | 21 | 21 | 18 | 15 | 15 | 15 | 19 | 20 | 22 | 22 | 20 | 19 | 17 | 15 | 18 | 17 | 13 | 12 | 12 | |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | ESE 7 | ESE 7 | E 8 | E 8 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SSW 5 |
 kJ | 745 | 430 | 210 | 147 | 99 | 73 | 55 | 42 | 27 | 27 | 27 | 18 | 18 | 10 | 10 | 17 | 28 | 31 | 35 | 40 | 26 | 21 | 11 | 5 |
Swell 2 Height (m) Direction Period (s) | SE 13 | SE 13 | S 6 | S 6 | S 6 | ESE 12 | SW 4 | SW 5 | SSW 5 | SSW 5 | SW 5 | SSW 5 | SSW 5 | SE 12 | ESE 12 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SE 6 |
| kJ | 7 | 7 | 50 | 25 | 16 | 14 | 6 | 13 | 11 | 11 | 7 | 5 | 4 | 22 | 14 | 10 | 5 | 5 | 5 | 5 | 5 | 4 | 5 | 1 |
Swell 3 Height (m) Direction Period (s) | — | SE 13 | SE 13 | SE 12 | SE 12 | ESE 12 | SSW 6 | SE 12 | SE 12 | ENE 3 | SE 12 | SE 12 | SE 12 | SE 6 | SSE 6 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | SE 11 | SE 11 | SE 6 | SE 6 | ENE 4 |
| kJ | — | 7 | 7 | 6 | 23 | 14 | 6 | 23 | 23 | 1 | 23 | 23 | 23 | 1 | 3 | 14 | 13 | 13 | 12 | 5 | 5 | 2 | 1 | 2 |
Wind waves Height (m) Direction Period (s) | S 6 | NNW 3 | NW 3 | NW 3 | WNW 3 | SSW 6 | SW 4 | ENE 2 | ENE 3 | — | — | — | — | SSW 4 | SSW 4 | — | — | — | — | — | — | WNW 3 | — | — |
| kJ | 71 | 10 | 4 | 5 | 1 | 18 | 12 | 1 | 2 | — | — | — | — | 4 | 11 | — | — | — | — | — | — | 3 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 58 | 29 | 0 | 0 | 29 | 0 | 233 | 283 | 1517 | 229 | 55 | 29 | 544 | 0 | 0 | 51 | 566 | 279 | 338 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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