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Surf Forecasts:
Kaifu Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 am Monday 20 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Kaifu Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kaifu Rivermouth sea temperature is
18.4° C
(Which is slightly cooler than normal)How big are the waves at Kaifu Rivermouth today?
The current surf forecast for Kaifu Rivermouth at 5AM is: 2.3m 14s primary swell from a Southeast direction (forecast issued at 02:00am April 20). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Apr) | 7ft (2.2m) | 13s |
| Afternoon (20 Apr) | 6.5ft (2.0m) | 13s |
| Evening (20 Apr) | 5ft (1.6m) | 12s |
Table - waves today at Kaifu Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||||||||
| 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) (?) | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2110 | 2110 | 1894 | 1623 | 1520 | 1380 | 848 | 751 | 843 | 703 | 692 | 491 | 385 | 280 | 270 | 265 | 202 | 191 | 149 | 139 | 104 | 104 | 78 | 78 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | on | on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | glass | cross- on | glass | cross- off | cross- off |
High Tide / height (m) | 6:51AM 1.86 | 8:30PM 1.74 | 7:25AM 1.80 | 9:28PM 1.61 | 8:02AM 1.70 | |||||||||||||||||||
Low Tide / height (m) | 1:12AM 0.81 | 1:40PM -0.02 | 1:50AM 0.94 | 2:27PM 0.07 | 2:33AM 1.06 | 3:21PM 0.21 | ||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||||||||
| Sunrise | - | - | 5:26 | - | - | - | - | - | - | - | 5:26 | - | - | - | - | - | - | - | 5:24 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:36 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - |
 |  |  | | |  | | | | |  | |  | | |  | | | | | |  | |  | |
Rain (mm) | - | 1 | 1 | 1 | 2 | 2 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 18 | 17 | 18 | 18 | 18 | 18 | 17 | 16 | 16 | 17 | 17 | 20 | 21 | 17 | 14 | 12 | 12 | 13 | 17 | 19 | 19 | 17 | 16 |
| Feels °C (?) | 19 | 18 | 17 | 17 | 17 | 18 | 18 | 17 | 16 | 16 | 17 | 13 | 14 | 15 | 13 | 10 | 8 | 8 | 10 | 14 | 16 | 17 | 15 | 14 |
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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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