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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 am Wednesday 27 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
22.5° C
(Which is slightly warmer than usual)How big are the waves at Niyodo Rivermouth today?
The current surf forecast for Niyodo Rivermouth at 10AM is: 1.1m 9s primary swell from a East-southeast direction and 0.4m 5s secondary swell from a South direction, 0.3m 10s secondary swell from a Southeast direction (forecast issued at 02:00am May 27). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 May) | 3.5ft (1.1m) | 9s |
| Afternoon (27 May) | 7ft (2.1m) | 6s |
| Evening (27 May) | 4.5ft (1.4m) | 7s |
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 48mm), heaviest during Wed afternoon. Warm (max 29°C on Fri afternoon, min 18°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 27 | Thursday 28 | Friday 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 9 | ESE 9 | ESE 9 | ESE 5 | ESE 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 6 | S 6 | SSW 6 | SW 7 | SW 7 | ESE 10 | ESE 10 | ESE 10 | |
72 | 203 | 222 | 189 | 159 | 344 | 326 | 197 | 166 | 176 | 142 | 117 | 117 | 92 | 89 | 86 | 81 | 84 | 70 | 46 | 65 | 32 | 33 | 33 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross-off | off | off | glassy | glassy | glassy | on | glassy | glassy | glassy | off | off | off | cross-off | cross-off | off | glassy | glassy | |
High Tide | 2:57AM1.59m | 4:01PM1.52m | 3:30AM1.62m | 4:47PM1.59m | 4:01AM1.64m | 5:27PM1.65m | ||||||||||||||||||
Low Tide | 9:34AM0.53m | 9:39PM0.85m | 10:10AM0.40m | 10:21PM0.89m | 10:44AM0.30m | |||||||||||||||||||
 | |  | |  | |  | |  | |  | | | | | | |  |  | | | | | | |
 | — | 4:58 | — | — | — | — | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — |
1 | 1 | 1 | 5 | 15 | 17 | 10 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 22 | 23 | 24 | 24 | 24 | 23 | 22 | 22 | 22 | 26 | 28 | 29 | 26 | 22 |
24 | 24 | 24 | 22 | 21 | 21 | 22 | 23 | 24 | 23 | 25 | 26 | 27 | 28 | 28 | 27 | 25 | 24 | 24 | 26 | 27 | 29 | 28 | 24 | |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 9 | S 5 | S 5 | ESE 15 | S 7 | ESE 7 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 6 | S 6 | SSW 6 | SW 7 | SW 6 | SW 7 | SW 7 | ESE 10 |
 kJ | 72 | 203 | 2 | 7 | 21 | 24 | 265 | 186 | 166 | 176 | 142 | 117 | 117 | 92 | 89 | 86 | 81 | 84 | 70 | 46 | 43 | 23 | 23 | 33 |
Swell 2 Height (m) Direction Period (s) | SE 15 | SE 15 | SE 15 | SE 10 | — | ESE 14 | SSW 7 | ESE 7 | E 7 | E 7 | E 6 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 |
| kJ | 9 | 9 | 9 | 17 | — | 20 | 139 | 197 | 161 | 86 | 39 | 60 | 68 | 48 | 49 | 33 | 34 | 21 | 21 | 21 | 13 | 22 | 14 | 12 |
Swell 3 Height (m) Direction Period (s) | S 11 | SE 11 | W 6 | ESE 15 | — | — | ESE 11 | SE 10 | SE 10 | SE 10 | E 9 | ESE 10 | ESE 10 | ESE 9 | SE 10 | SE 10 | SE 9 | SE 10 | SE 10 | E 8 | ESE 10 | ESE 10 | ESE 10 | SW 7 |
| kJ | 2 | 5 | 1 | 21 | — | — | 11 | 17 | 16 | 16 | 23 | 19 | 9 | 9 | 23 | 23 | 23 | 23 | 23 | 21 | 39 | 32 | 33 | 12 |
Wind waves Height (m) Direction Period (s) | ESE 6 | ESE 5 | ESE 9 | ESE 9 | ESE 5 | ESE 6 | SSW 7 | — | E 7 | — | — | — | — | — | — | — | — | — | WNW 2 | NW 2 | SW 7 | SW 3 | — | NNE 2 |
| kJ | 56 | 42 | 222 | 189 | 159 | 344 | 326 | — | 123 | — | — | — | — | — | — | — | — | — | 1 | 1 | 65 | 2 | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 29 | 29 | 29 | 29 | 224 | 224 | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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