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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Monday 23 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
16.4° C
(Which is slightly cooler than normal)How big are the waves at Niyodo Rivermouth today?
The current surf forecast for Niyodo Rivermouth at 4AM is: 0.6m 6s primary swell from a South direction and 0.3m 10s secondary swell from a East direction (forecast issued at 08:00pm February 23). An open ocean swell of 0.2m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Feb) | 1ft (0.3m) | 9s |
| Afternoon (24 Feb) | 1ft (0.3m) | 9s |
| Evening (24 Feb) | 1.5ft (0.4m) | 10s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Mon 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||||||||||
| 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) (?) | 6 | 6 | 6 | 6 | 10 | 9 | 9 | 9 | 9 | 10 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 8 | 9 | 8 | 8 | 9 | 9 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 61 | 29 | 20 | 22 | 18 | 17 | 17 | 17 | 17 | 32 | 52 | 82 | 62 | 52 | 54 | 33 | 131 | 224 | 377 | 550 | 864 | 1261 | 1344 | 1975 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- off | off | off | off | glass | cross- on | cross- on | glass | on | glass | glass | glass | cross- off | cross- off | cross- off | cross- off | off | off | glass | glass | glass | glass | glass |
High Tide / height (m) | 10:19PM 1.45 | 9:38AM 1.65 | 11:59PM 1.32 | 10:23AM 1.55 | 2:57AM 1.35 | 11:56AM 1.45 | ||||||||||||||||||
Low Tide / height (m) | 3:49PM 0.41 | 3:36AM 0.93 | 4:53PM 0.48 | 4:22AM 1.13 | 6:29PM 0.52 | 6:38AM 1.28 | ||||||||||||||||||
Mon 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:37 | - | - |
| Sunset | - | - | - | - | - | - | - | 5:55 | - | - | - | - | - | - | - | 5:57 | - | - | - | - | - | - | - | 5:58 |
 | | | |  |  | | |  | | | | |  | | | |  | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | 2 | 2 | 1 | 1 | 8 | 7 | 8 | 4 | - | - | 1 | - | - | - | - |
| Temp. °C | 15 | 13 | 12 | 11 | 12 | 14 | 16 | 15 | 15 | 16 | 16 | 16 | 15 | 14 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 |
| Feels °C (?) | 13 | 12 | 11 | 9 | 10 | 13 | 15 | 14 | 16 | 15 | 16 | 16 | 15 | 13 | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 14 | 14 | 15 |
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