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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 pm Friday 24 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
19.5° 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 10PM is: 0.9m 9s primary swell from a East direction and 0.5m 7s secondary swell from a South-southeast direction (forecast issued at 02:00pm April 24). The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Apr) | - | - |
| Afternoon (24 Apr) | 2.5ft (0.8m) | 9s |
| Evening (24 Apr) | 3ft (0.9m) | 9s |
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 29mm), heaviest during Sun night. Warm (max 21°C on Mon morning, min 11°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Fri 24 | Saturday 25 | Sunday 26 | Mon 27 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SSW 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | ESE 8 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | E 8 | ESE 8 | E 8 | E 8 | ESE 8 | |
96 | 103 | 133 | 133 | 162 | 230 | 372 | 656 | 626 | 547 | 959 | 1044 | 1044 | 1044 | 1023 | 898 | 847 | 932 | 763 | 857 | 655 | 649 | 496 | 234 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | cross-off | off | off | glassy | glassy | on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | off | cross-off | cross-off | off | cross-off | |
High Tide | 1:56AM1.46m | 12:24PM1.36m | 2:53AM1.53m | 2:14PM1.42m | 3:30AM1.59m | |||||||||||||||||||
Low Tide | 6:06PM0.51m | 7:33AM1.14m | 7:39PM0.55m | 8:49AM0.97m | 8:48PM0.56m | |||||||||||||||||||
 |  | |  |  | | |  | | | |  | | | | | | | | | |  |  |  | |
 | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — |
 | — | — | 6:42 | — | — | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | 6:44 |
— | 1 | 1 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 | 5 | 7 | 6 | 2 | |
Temp °C | 14 | 12 | 11 | 11 | 11 | 12 | 11 | 15 | 18 | 18 | 18 | 16 | 16 | 15 | 16 | 18 | 18 | 18 | 17 | 15 | 16 | 15 | 15 | 18 |
11 | 9 | 8 | 8 | 8 | 9 | 8 | 14 | 17 | 17 | 16 | 15 | 15 | 14 | 15 | 16 | 15 | 15 | 16 | 14 | 15 | 14 | 14 | 18 | |
Swell 1 Height (m) Direction Period (s) | SSW 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | S 6 | S 6 | — | — | — | SW 7 | S 7 | — | SE 13 | SE 13 | SE 13 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
 kJ | 96 | 103 | 133 | 133 | 162 | 230 | 372 | 402 | 384 | 7 | 3 | — | — | — | 2 | 1 | — | 7 | 7 | 7 | 655 | 441 | 327 | 234 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | S 8 | S 7 | SSE 7 | S 7 | SSE 7 | SSE 7 | S 7 | S 6 | SE 15 | — | — | — | — | — | — | — | — | — | — | SE 13 | SE 13 | SE 13 | SE 13 |
| kJ | 108 | 72 | 27 | 29 | 26 | 16 | 15 | 14 | 7 | 8 | — | — | — | — | — | — | — | — | — | — | 7 | 7 | 7 | 6 |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 12 | SSW 8 | SSW 7 | SW 7 | SSW 7 | SSW 7 | SW 7 | SE 12 | — | — | — | — | — | — | — | — | — | — | — | — | S 7 | — | SW 6 |
| kJ | 37 | 37 | 32 | 21 | 12 | 5 | 5 | 2 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 2 |
Wind waves Height (m) Direction Period (s) | ENE 7 | NNW 2 | NNW 3 | — | E 9 | — | — | E 9 | E 8 | ESE 8 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | E 8 | — | E 8 | E 8 | — |
| kJ | 262 | 1 | 1 | — | 402 | — | — | 656 | 626 | 547 | 959 | 1044 | 1044 | 1044 | 1023 | 898 | 847 | 932 | 763 | 857 | — | 649 | 496 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 224 | 0 | 0 | 0 | 0 | 585 | 581 | 330 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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