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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 pm Wednesday 06 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 8PM is: 0.7m 10s primary swell from a East-southeast direction and 0.7m 6s secondary swell from a East-southeast direction (forecast issued at 02:00pm May 06). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 May) | - | - |
| Afternoon (06 May) | 2.5ft (0.8m) | 10s |
| Evening (06 May) | 2.5ft (0.7m) | 10s |
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 Fri morning. Warm (max 22°C on Fri morning, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 6 | Thursday 7 | Friday 8 | Sat 9 | |||||||||||||||||||||
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 | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 10 | ESE 10 | SW 6 | ESE 10 | ESE 11 | ESE 11 | SE 11 | SE 11 | ESE 11 | |
81 | 117 | 80 | 80 | 78 | 76 | 75 | 73 | 119 | 161 | 130 | 133 | 122 | 125 | 112 | 290 | 160 | 160 | 141 | 143 | 143 | 163 | 163 | 143 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | glassy | glassy | off | glassy | off | glassy | on | on | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | cross | off | off | off | cross-off | cross-off | |
High Tide | 9:17PM1.49m | 7:53AM1.57m | 10:12PM1.42m | 8:31AM1.48m | 11:23PM1.39m | |||||||||||||||||||
Low Tide | 2:22AM1.06m | 3:03PM0.44m | 3:07AM1.12m | 3:56PM0.53m | 4:21AM1.15m | |||||||||||||||||||
 | | |  | | |  | |  | | | |  |  | | |  | | | | | | | | |
 | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — |
 | — | — | 6:51 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | 6:52 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | |
Temp °C | 20 | 20 | 19 | 17 | 16 | 16 | 16 | 20 | 21 | 21 | 20 | 19 | 18 | 19 | 19 | 20 | 22 | 20 | 17 | 14 | 12 | 12 | 13 | 17 |
19 | 19 | 20 | 17 | 16 | 16 | 16 | 20 | 21 | 21 | 22 | 21 | 19 | 21 | 21 | 22 | 20 | 18 | 14 | 12 | 9 | 9 | 10 | 14 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 6 | ESE 6 | ESE 5 | ESE 6 | SE 6 | ESE 9 | ESE 9 | ESE 9 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 10 | ESE 10 | ESE 10 | SSW 6 | SSW 6 | ESE 11 | SE 11 | SE 11 | ESE 11 |
 kJ | 81 | 117 | 80 | 34 | 24 | 26 | 34 | 56 | 119 | 161 | 130 | 133 | 122 | 125 | 112 | 290 | 160 | 160 | 94 | 41 | 143 | 163 | 163 | 143 |
Swell 2 Height (m) Direction Period (s) | SE 4 | — | E 6 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SSE 6 | SSE 7 | SSE 7 | SE 11 | ESE 11 | ESE 10 | ESE 10 | SSE 6 | SSE 7 | SSE 7 | ESE 10 | ESE 11 | SW 6 | SW 6 | SW 5 | SSW 6 |
| kJ | 12 | — | 24 | 80 | 78 | 76 | 75 | 73 | 26 | 11 | 47 | 30 | 44 | 42 | 42 | 8 | 27 | 27 | 141 | 143 | 25 | 15 | 11 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SE 7 | SE 7 | SSE 7 | — | — | — | SE 11 | ESE 11 | S 6 | S 6 | — | — | — | SE 7 | SSE 7 | SSE 7 | — | WSW 6 | W 5 |
| kJ | — | — | — | — | — | 2 | 14 | 36 | — | — | — | 31 | 46 | 1 | 3 | — | — | — | 12 | 9 | 9 | — | 4 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 6 | SW 5 | SSW 6 | SW 6 | W 4 | WNW 4 | WNW 4 | W 4 | NW 3 | WNW 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 12 | 45 | 53 | 148 | 30 | 17 | 15 | 15 | 2 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 51 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 58 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 58 | 51 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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