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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm 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
20.6° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Niyodo Rivermouth today?
The current surf forecast for Niyodo Rivermouth at 1AM is: 0.5m 7s primary swell from a East direction and 0.4m 5s secondary swell from a Southwest direction (forecast issued at 08:00pm April 27). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Apr) | 1ft (0.3m) | 12s |
| Afternoon (28 Apr) | 0.5ft (0.2m) | 12s |
| Evening (28 Apr) | 3ft (0.9m) | 5s |
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 21°C on Tue morning, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||||||||
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 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 6 | SSW 5 | E 10 | E 10 | E 10 | E 10 | SE 11 | SE 11 | SE 9 | |
71 | 54 | 38 | 27 | 27 | 23 | 23 | 14 | 14 | 33 | 29 | 42 | 37 | 42 | 19 | 12 | 9 | 8 | 8 | 7 | 7 | 18 | 18 | 20 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | off | off | glassy | glassy | on | on | glassy | cross-off | off | off | off | off | off | cross-off | off | off | off | off | off | glassy | on | on | |
High Tide | 3:24PM1.52m | 3:59AM1.65m | 4:15PM1.62m | 4:25AM1.69m | 4:58PM1.70m | 4:49AM1.73m | ||||||||||||||||||
Low Tide | 9:39PM0.57m | 10:10AM0.61m | 10:19PM0.59m | 10:42AM0.45m | 10:54PM0.63m | 11:11AM0.32m | ||||||||||||||||||
 |  | | | |  | | | |  | | |  | | | | |  | | | | | | | |
 | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — |
 | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | 6:45 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 21 | 18 | 16 | 16 | 16 | 19 | 21 | 21 | 20 | 19 | 18 | 17 | 16 | 16 | 18 | 17 | 15 | 14 | 13 | 13 | 13 | 16 | 18 | 17 |
21 | 18 | 15 | 15 | 16 | 19 | 21 | 21 | 22 | 20 | 18 | 17 | 16 | 14 | 16 | 13 | 13 | 11 | 11 | 11 | 11 | 15 | 16 | 16 | |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | 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 6 | SSW 5 | SSW 5 | E 10 | E 10 | ENE 5 | E 4 | SE 11 | SE 9 |
 kJ | 71 | 54 | 38 | 27 | 27 | 18 | 18 | 10 | 10 | 17 | 29 | 42 | 37 | 42 | 19 | 12 | 9 | 5 | 8 | 7 | 6 | 1 | 18 | 20 |
Swell 2 Height (m) Direction Period (s) | SW 3 | SSW 5 | SW 5 | SW 5 | SSW 5 | SSW 5 | SSW 5 | ESE 12 | ESE 12 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 10 | SSW 5 | SE 11 | E 10 | E 9 | E 9 | E 9 |
| kJ | 3 | 11 | 7 | 7 | 5 | 5 | 2 | 14 | 14 | 10 | 10 | 5 | 5 | 4 | 4 | 4 | 4 | 8 | 2 | 5 | 7 | 7 | 7 | 6 |
Swell 3 Height (m) Direction Period (s) | SSW 6 | SE 12 | SE 12 | ESE 12 | SE 12 | SE 12 | SE 12 | SSE 6 | SSE 6 | ESE 12 | ESE 12 | ESE 11 | SE 11 | SE 11 | SE 11 | E 4 | SE 11 | SE 11 | SE 11 | SE 6 | SE 11 | SE 11 | ENE 5 | S 13 |
| kJ | 6 | 23 | 23 | 14 | 23 | 23 | 23 | 4 | 3 | 14 | 13 | 13 | 5 | 5 | 5 | 2 | 5 | 5 | 5 | 1 | 5 | 18 | 3 | 4 |
Wind waves Height (m) Direction Period (s) | SW 3 | E 2 | ENE 3 | ENE 3 | — | — | — | SSW 5 | SSW 4 | SSW 5 | — | — | WNW 3 | WNW 3 | NW 3 | WNW 3 | — | — | — | — | NE 5 | ENE 5 | E 4 | E 4 |
| kJ | 4 | 1 | 1 | 1 | — | — | — | 4 | 10 | 33 | — | — | 3 | 3 | 2 | 1 | — | — | — | — | 36 | 22 | 3 | 9 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 29 | 0 | 0 | 229 | 0 | 233 | 283 | 1517 | 229 | 0 | 0 | 0 | 29 | 0 | 51 | 573 | 327 | 235 | 523 | 949 | 1041 | 906 | 906 | 916 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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