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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 am Friday 10 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
18.6° 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 1PM is: 3.5m 9s primary swell from a South-southwest direction and 0.6m 9s secondary swell from a East-southeast direction (forecast issued at 08:00am April 10). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Apr) | 11ft (3.5m) | 8s |
| Afternoon (10 Apr) | 11ft (3.5m) | 9s |
| Evening (10 Apr) | 8ft (2.5m) | 9s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 10 | Saturday 11 | Sunday 12 | Mon 13 | |||||||||||||||||||||
| 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 | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 8 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 7 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 653 | 1473 | 1906 | 1898 | 1338 | 949 | 488 | 306 | 226 | 181 | 128 | 131 | 109 | 107 | 101 | 101 | 101 | 101 | 101 | 99 | 99 | 99 | 128 | 117 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- on | glass | cross- off | off | off | off | off | glass | on | on | glass | glass | glass | glass |
High Tide / height (m) | 9:12AM 1.39 | 2:39AM 1.33 | 11:27AM 1.29 | 3:18AM 1.43 | ||||||||||||||||||||
Low Tide / height (m) | 3:36AM 1.22 | 5:52PM 0.69 | 7:30AM 1.24 | 7:39PM 0.66 | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Mon 13 | |||||||||||||||||||||
| Sunrise | 5:41 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - | - | 5:39 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:32 | - | - | - |
 | |  | | |  |  | |  | | | | |  | | |  | |  | | | | | | |
Rain (mm) | 14 | 11 | 16 | 6 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 20 | 21 | 21 | 21 | 21 | 19 | 17 | 15 | 13 | 17 | 21 | 22 | 20 | 16 | 14 | 13 | 12 | 16 | 18 | 18 | 16 | 15 | 16 | 16 |
| Feels °C (?) | 19 | 19 | 20 | 21 | 22 | 20 | 17 | 14 | 11 | 15 | 18 | 21 | 18 | 14 | 11 | 10 | 9 | 15 | 16 | 17 | 16 | 15 | 16 | 17 |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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