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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Thursday 02 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
18.8° C
(Which is slightly warmer than usual)How big are the waves at Niyodo Rivermouth today?
The current surf forecast for Niyodo Rivermouth at 12AM is: 0.6m 7s primary swell from a Southwest direction and 0.3m 7s secondary swell from a Southeast direction (forecast issued at 08:00pm April 02). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (03 Apr) | - | - |
| Afternoon (03 Apr) | - | - |
| Evening (03 Apr) | 2.5ft (0.8m) | 8s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thu 02 | Friday 03 | Saturday 04 | Sunday 05 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 7 | 7 | 8 | 8 | 13 | 13 | 13 | 10 | 10 | 5 | 6 | 7 | 8 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 67 | 79 | 42 | 27 | 18 | 17 | 27 | 27 | 27 | 38 | 38 | 52 | 167 | 523 | 1672 | 3442 | 3030 | 2481 | 1459 | 1216 | 539 | 777 | 547 | 294 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | glass | on | on | glass | glass | cross- on | cross- on | on | on | on | on | cross- on | cross | cross- off | off | off | glass | cross- on | on |
High Tide / height (m) | 6:23PM 1.86 | 6:21AM 1.82 | 6:57PM 1.83 | 6:42AM 1.80 | 7:30PM 1.77 | 7:03AM 1.77 | ||||||||||||||||||
Low Tide / height (m) | 12:24AM 0.49 | 12:37PM 0.25 | 12:50AM 0.59 | 1:05PM 0.23 | 1:15AM 0.70 | 1:34PM 0.24 | ||||||||||||||||||
Thu 02 | Friday 03 | Saturday 04 | Sunday 05 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:48 | - | - | - |
| Sunset | 6:24 | - | - | - | - | - | - | - | 6:25 | - | - | - | - | - | - | - | 6:27 | - | - | - | - | - | - | - |
 |  | | | |  | | | |  | |  |  | |  | |  | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 2 | 5 | 4 | 15 | 29 | 5 | - | - | - | - | - | - | - |
| Temp. °C | 16 | 13 | 12 | 11 | 10 | 15 | 17 | 17 | 16 | 15 | 16 | 15 | 16 | 17 | 17 | 19 | 19 | 18 | 17 | 15 | 15 | 17 | 19 | 19 |
| Feels °C (?) | 14 | 10 | 10 | 9 | 7 | 14 | 15 | 15 | 15 | 14 | 14 | 12 | 11 | 11 | 12 | 12 | 19 | 18 | 18 | 15 | 15 | 18 | 18 | 18 |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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