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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 pm Wednesday 08 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
19.1° C
(Which is slightly warmer than usual)How big are the waves at Niyodo Rivermouth today?
The current surf forecast for Niyodo Rivermouth at 10PM is: 0.4m 7s primary swell from a South-southwest direction and 0.3m 9s secondary swell from a East-southeast direction (forecast issued at 02:00pm April 08). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Apr) | - | - |
| Afternoon (08 Apr) | 2ft (0.6m) | 8s |
| Evening (08 Apr) | 1.5ft (0.4m) | 7s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 08 | Thursday 09 | Friday 10 | Saturday 11 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 7 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 6 | 6 | 6 | 7 | 8 | 8 | 9 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 43 | 42 | 32 | 18 | 18 | 31 | 41 | 60 | 62 | 44 | 61 | 117 | 139 | 302 | 471 | 1272 | 1650 | 1294 | 953 | 665 | 666 | 344 | 250 | 150 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | glass | cross- off | off | cross- off | cross- off | glass | on | glass | cross | on | on | cross- on | glass | cross- on | glass | glass | glass | glass | cross- off | cross- off | off | cross- off |
High Tide / height (m) | 10:20PM 1.33 | 8:34AM 1.49 | 12:16AM 1.26 | 9:12AM 1.39 | 2:39AM 1.33 | |||||||||||||||||||
Low Tide / height (m) | 3:19PM 0.50 | 2:50AM 1.12 | 4:16PM 0.62 | 3:36AM 1.22 | 5:52PM 0.69 | 7:30AM 1.24 | ||||||||||||||||||
Wednesday 08 | Thursday 09 | Friday 10 | Saturday 11 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - | - | 5:41 | - |
| Sunset | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - |
 | | |  | | | |  | | |  |  |  |  | |  | | |  | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 2 | 4 | 6 | 11 | 4 | 16 | 17 | 1 | - | - | - | - | - | - |
| Temp. °C | 13 | 14 | 13 | 10 | 10 | 9 | 10 | 14 | 16 | 15 | 14 | 16 | 17 | 17 | 18 | 20 | 20 | 20 | 20 | 19 | 19 | 17 | 14 | 18 |
| Feels °C (?) | 9 | 11 | 11 | 7 | 7 | 6 | 8 | 13 | 14 | 14 | 14 | 15 | 17 | 18 | 20 | 19 | 23 | 23 | 23 | 21 | 20 | 17 | 12 | 16 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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