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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 am Saturday 04 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
18.4° 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 2PM is: 5.0m 10s primary swell from a South direction (forecast issued at 08:00am April 04). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Apr) | 8ft (2.5m) | 7s |
| Afternoon (04 Apr) | 16ft (5.0m) | 10s |
| Evening (04 Apr) | 15ft (4.5m) | 10s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 04 | Sunday 05 | Monday 06 | Tue 07 | |||||||||||||||||||||
| 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) (?) | 6 | 7 | 8 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 8 | 9 | 8 | 8 | 7 | 7 | 9 | 8 | 8 | 8 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 215 | 640 | 1968 | 4828 | 4535 | 3723 | 2482 | 1854 | 1345 | 563 | 338 | 506 | 261 | 251 | 155 | 186 | 136 | 126 | 123 | 113 | 121 | 90 | 92 | 92 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- on | on | cross- on | cross- on | cross- off | off | off | glass | glass | on | glass | cross- off | off | off | off | glass | on | on | glass | cross- off | glass | off |
High Tide / height (m) | 6:42AM 1.80 | 7:30PM 1.77 | 7:03AM 1.77 | 8:04PM 1.68 | 7:24AM 1.73 | 8:40PM 1.57 | ||||||||||||||||||
Low Tide / height (m) | 1:05PM 0.23 | 1:15AM 0.70 | 1:34PM 0.24 | 1:39AM 0.81 | 2:04PM 0.30 | 2:02AM 0.92 | ||||||||||||||||||
Saturday 04 | Sunday 05 | Monday 06 | Tue 07 | |||||||||||||||||||||
| Sunrise | 5:50 | - | - | - | - | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:47 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:27 | - | - | - | - | - | - | - | 6:27 | - | - | - | - | - | - | - | 6:28 | - | - | - |
 | |  | |  |  |  |  |  | |  |  | |  | | | | | | | | | |  | |
Rain (mm) | 2 | 5 | 16 | 40 | 11 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 17 | 16 | 17 | 19 | 20 | 18 | 17 | 15 | 14 | 16 | 18 | 19 | 18 | 16 | 15 | 14 | 14 | 17 | 18 | 19 | 17 | 15 | 15 | 14 |
| Feels °C (?) | 12 | 10 | 11 | 13 | 20 | 18 | 17 | 14 | 13 | 16 | 19 | 18 | 18 | 15 | 14 | 13 | 13 | 18 | 18 | 18 | 18 | 14 | 15 | 14 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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