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Surf Forecasts:
Kaifu Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Friday 17 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
18.2° C
(Which is slightly cooler than normal)How big are the waves at Kaifu Rivermouth today?
The current surf forecast for Kaifu Rivermouth at 1AM is: 2.0m 16s primary swell from a Southeast direction and 1.6m 7s secondary swell from a East-southeast direction (forecast issued at 08:00pm April 17). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 8ft (2.5m) | 16s |
| Afternoon (18 Apr) | 8ft (2.4m) | 16s |
| Evening (18 Apr) | 7.5ft (2.3m) | 15s |
Table - waves today at Kaifu Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Fri 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
| 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) (?) | 14 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1094 | 1532 | 2033 | 2270 | 2242 | 3001 | 2803 | 2768 | 1900 | 2208 | 2178 | 1983 | 1830 | 1688 | 1665 | 1514 | 1762 | 2056 | 2202 | 2141 | 1922 | 2130 | 1235 | 1045 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | on | on | on | cross- on | on | on | glass | glass | glass | cross- off | cross- off | cross | cross- on | on | glass | cross- off | glass | cross- off | cross | cross- on | cross- on | on |
High Tide / height (m) | 6:08PM 1.89 | 5:49AM 1.88 | 6:53PM 1.90 | 6:19AM 1.89 | 7:40PM 1.84 | 6:51AM 1.86 | ||||||||||||||||||
Low Tide / height (m) | 11:59PM 0.57 | 12:19PM 0.02 | 12:36AM 0.68 | 12:58PM -0.04 | 1:12AM 0.81 | 1:40PM -0.02 | ||||||||||||||||||
Fri 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:26 | - | - | - |
| Sunset | 6:34 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - |
 |  |  | |  |  | |  | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 |
| Temp. °C | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 17 | 16 | 16 | 16 | 18 | 20 | 19 | 18 | 17 | 17 | 17 | 17 | 19 | 19 | 19 |
| Feels °C (?) | 15 | 14 | 14 | 16 | 17 | 17 | 17 | 18 | 19 | 18 | 16 | 15 | 15 | 16 | 18 | 18 | 19 | 17 | 18 | 17 | 17 | 18 | 18 | 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)
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