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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 am Sunday 12 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
18.7° 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 5AM is: 0.7m 11s primary swell from a East-southeast direction and 0.5m 6s secondary swell from a South direction (forecast issued at 02:00am April 12). An open ocean swell of 0.2m 2s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Apr) | 2.5ft (0.7m) | 11s |
| Afternoon (12 Apr) | 2.5ft (0.7m) | 10s |
| Evening (12 Apr) | 2.5ft (0.8m) | 10s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 12 | Monday 13 | Tuesday 14 | ||||||||||||||||||||||
| 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 | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 101 | 101 | 101 | 101 | 99 | 97 | 97 | 141 | 143 | 143 | 143 | 143 | 143 | 143 | 143 | 200 | 204 | 204 | 200 | 200 | 204 | 256 | 319 | 325 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | glass | cross- on | cross- on | glass | glass | off | off | off | glass | on | on | cross- on | glass | glass | glass | glass | glass | glass | on | glass | glass |
High Tide / height (m) | 3:18AM 1.43 | |||||||||||||||||||||||
Low Tide / height (m) | ||||||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | ||||||||||||||||||||||
| Sunrise | - | - | 5:39 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:32 | - | - | - | - | - | - | - | 6:32 | - | - | - | - | - | - | - | 6:34 | - |
 | |  | | | | | |  | |  | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 17 | 16 | 19 | 19 | 19 | 18 | 17 | 16 | 16 | 16 | 19 | 20 | 19 | 18 | 17 | 17 | 16 | 17 | 18 | 18 | 19 | 18 | 17 |
| Feels °C (?) | 14 | 14 | 13 | 18 | 18 | 18 | 19 | 17 | 15 | 15 | 15 | 19 | 19 | 18 | 18 | 18 | 18 | 16 | 18 | 20 | 19 | 19 | 20 | 18 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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