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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 am Thursday 26 Mar 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
17.7° 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: 2.0m 10s primary swell from a East direction and 0.5m 8s secondary swell from a South-southwest direction (forecast issued at 08:00am March 26). The wind direction is predicted to be offshore and the swell rating is 3.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Mar) | 7.5ft (2.3m) | 10s |
| Afternoon (26 Mar) | 6.5ft (2.0m) | 10s |
| Evening (26 Mar) | 6ft (1.9m) | 10s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 26 | Friday 27 | Saturday 28 | Sun 29 | |||||||||||||||||||||
| 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) (?) | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 923 | 978 | 878 | 818 | 740 | 755 | 669 | 586 | 510 | 384 | 319 | 267 | 256 | 207 | 168 | 168 | 133 | 106 | 106 | 106 | 80 | 58 | 81 | 82 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | off | off | off | glass | on | on | glass | cross- off | off | off | off | glass | on | on | cross- off | cross- off | off | off |
High Tide / height (m) | 9:55AM 1.49 | 2:53AM 1.41 | 12:06PM 1.38 | 3:51AM 1.52 | 2:22PM 1.43 | |||||||||||||||||||
Low Tide / height (m) | 4:23AM 1.23 | 6:20PM 0.51 | 7:43AM 1.27 | 8:12PM 0.49 | 9:25AM 1.12 | 9:24PM 0.41 | ||||||||||||||||||
Thursday 26 | Friday 27 | Saturday 28 | Sun 29 | |||||||||||||||||||||
| Sunrise | - | 6:01 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:21 | - | - | - | - | - | - | - | 6:22 | - | - | - |
 |  |  | | | | | | | | | | |  |  | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 12 | 14 | 16 | 17 | 16 | 12 | 11 | 10 | 9 | 14 | 16 | 16 | 15 | 13 | 12 | 12 | 12 | 15 | 17 | 17 | 16 | 14 | 13 | 13 |
| Feels °C (?) | 9 | 11 | 12 | 13 | 12 | 9 | 8 | 7 | 6 | 13 | 13 | 14 | 14 | 12 | 10 | 10 | 10 | 14 | 15 | 15 | 14 | 12 | 11 | 11 |
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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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