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Surf Forecasts:
Kaifu Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Thursday 16 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
18.3° 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: 1.9m 15s primary swell from a Southeast direction and 0.1m 13s secondary swell from a East direction (forecast issued at 08:00pm April 16). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Apr) | 6ft (1.8m) | 15s |
| Afternoon (17 Apr) | 5ft (1.6m) | 14s |
| Evening (17 Apr) | 6ft (1.8m) | 16s |
Table - waves today at Kaifu Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thu 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||||||||
| 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) (?) | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1563 | 1542 | 1542 | 1526 | 1526 | 1325 | 1109 | 1094 | 1094 | 1532 | 2033 | 2146 | 3001 | 2839 | 2839 | 2768 | 2520 | 2238 | 2066 | 2010 | 1983 | 1972 | 1862 | 1862 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | glass | glass | on | on | on | on | on | on | on | cross- on | cross- on | cross- on | on | glass | glass | glass | cross- off | cross- off | cross- off | cross | cross |
High Tide / height (m) | 5:24PM 1.83 | 5:21AM 1.85 | 6:08PM 1.89 | 5:49AM 1.88 | 6:53PM 1.90 | 6:19AM 1.89 | ||||||||||||||||||
Low Tide / height (m) | 11:23PM 0.49 | 11:42AM 0.15 | 11:59PM 0.57 | 12:19PM 0.02 | 12:36AM 0.68 | 12:58PM -0.04 | ||||||||||||||||||
Thu 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:28 | - | - | - |
| Sunset | 6:32 | - | - | - | - | - | - | - | 6:34 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - |
 |  | |  |  | | | | |  | |  |  |  |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 14 | 13 | 14 | 15 | 17 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 18 | 18 | 18 | 17 | 16 | 16 | 16 | 20 | 22 | 23 |
| Feels °C (?) | 15 | 10 | 10 | 12 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 15 | 16 | 15 | 18 | 18 | 19 | 18 | 16 | 15 | 15 | 17 | 17 | 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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