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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Thursday 19 Feb 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
16.3° C
(Which is 1.0°C colder than average for this time of year)How big are the waves at Niyodo Rivermouth today?
The current surf forecast for Niyodo Rivermouth at 12AM is: 0.3m 12s primary swell from a East direction and 0.1m 8s secondary swell from a Southeast direction, 0.2m 3s secondary swell from a East direction (forecast issued at 08:00pm February 19). The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Feb) | 1ft (0.3m) | 12s |
| Afternoon (20 Feb) | 1ft (0.3m) | 12s |
| Evening (20 Feb) | 1ft (0.3m) | 12s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thu 19 | Friday 20 | Saturday 21 | Sunday 22 | |||||||||||||||||||||
| 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 | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 30 | 17 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 13 | 24 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | glass | off | off | off | glass | on | on | cross- off | off | off | off | off | glass | on | on | glass | cross- off | off | off | off | glass | on | on |
High Tide / height (m) | 7:08PM 1.90 | 7:45AM 1.87 | 7:47PM 1.85 | 8:10AM 1.85 | 8:30PM 1.75 | 8:37AM 1.81 | ||||||||||||||||||
Low Tide / height (m) | 1:27AM 0.21 | 1:45PM 0.44 | 1:58AM 0.34 | 2:21PM 0.39 | 2:29AM 0.52 | |||||||||||||||||||
Thu 19 | Friday 20 | Saturday 21 | Sunday 22 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:41 | - | - |
| Sunset | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:53 | - | - | - | - | - | - | - | 5:54 |
 | |  | | |  | |  |  | | | | | | | | | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 7 | 6 | 7 | 7 | 9 | 11 | 12 | 11 | 9 | 8 | 7 | 6 | 10 | 12 | 13 | 11 | 9 | 9 | 9 | 11 | 14 | 16 | 16 |
| Feels °C (?) | 5 | 4 | 2 | 4 | 4 | 6 | 8 | 9 | 8 | 6 | 5 | 3 | 3 | 8 | 9 | 9 | 9 | 6 | 6 | 6 | 9 | 12 | 13 | 12 |
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