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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 pm Sunday 29 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
18.2° 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 7PM is: 0.5m 9s primary swell from a East direction and 0.8m 5s secondary swell from a South direction (forecast issued at 02:00pm March 29). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Mar) | - | - |
| Afternoon (29 Mar) | 1.5ft (0.5m) | 10s |
| Evening (29 Mar) | 2.5ft (0.8m) | 5s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 29 | Monday 30 | Tuesday 31 | Wednesday 01 | |||||||||||||||||||||
| 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 | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 9 | 5 | 9 | 9 | 9 | 8 | 9 | 9 | 9 | 5 | 7 | 8 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 68 | 46 | 41 | 32 | 25 | 25 | 23 | 23 | 23 | 23 | 24 | 72 | 593 | 2020 | 3604 | 3393 | 2766 | 1984 | 1018 | 770 | 548 | 400 | 297 | 208 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | glass | glass | glass | cross- off | cross- off | glass | glass | on | cross- on | cross- on | on | on | cross- on | cross- on | cross- on | cross- off | off | off | off | off | off | off |
High Tide / height (m) | 3:36PM 1.57 | 4:51AM 1.69 | 4:27PM 1.69 | 5:15AM 1.75 | 5:10PM 1.79 | 5:38AM 1.79 | ||||||||||||||||||
Low Tide / height (m) | 10:08AM 0.93 | 10:14PM 0.35 | 10:41AM 0.75 | 10:52PM 0.33 | 11:12AM 0.58 | 11:26PM 0.35 | ||||||||||||||||||
Sunday 29 | Monday 30 | Tuesday 31 | Wednesday 01 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - |
| Sunset | - | - | 6:22 | - | - | - | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:23 | - | - | - | - | - |
 |  | |  |  |  |  | | | | |  |  | |  | | | |  |  | | | | | |
Rain (mm) | - | 1 | 1 | 1 | - | - | - | - | - | - | - | 3 | 29 | 26 | 21 | 2 | 2 | 1 | - | - | - | - | - | - |
| Temp. °C | 19 | 19 | 18 | 16 | 15 | 14 | 14 | 17 | 18 | 19 | 18 | 17 | 17 | 18 | 19 | 19 | 21 | 21 | 15 | 13 | 12 | 11 | 11 | 14 |
| Feels °C (?) | 17 | 18 | 19 | 16 | 15 | 13 | 13 | 17 | 18 | 17 | 17 | 15 | 12 | 13 | 17 | 19 | 21 | 20 | 11 | 10 | 9 | 8 | 8 | 12 |
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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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