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Surf Forecasts:
Kaifu Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 pm Tuesday 28 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
20.3° C
(Which is slightly warmer than usual)How big are the waves at Kaifu Rivermouth today?
The current surf forecast for Kaifu Rivermouth at 9PM is: 0.6m 5s primary swell from a South-southwest direction and 0.2m 12s secondary swell from a East-southeast direction, 0.2m 8s secondary swell from a East direction (forecast issued at 02:00pm April 28). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Apr) | - | - |
| Afternoon (28 Apr) | 2.5ft (0.7m) | 4s |
| Evening (28 Apr) | 2ft (0.6m) | 5s |
Table - waves today at Kaifu Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 52mm), heaviest during Thu night. Warm (max 23°C on Tue afternoon, min 12°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Fri 1 | |||||||||||||||||||||
12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 12 | SSW 4 | SSW 4 | SSW 5 | SW 5 | S 6 | S 6 | SSW 6 | SSW 6 | NE 4 | NE 4 | NE 4 | SE 11 | SE 11 | SE 11 | SE 11 | SE 9 | ESE 5 | ESE 6 | ESE 6 | ESE 6 | ESE 7 | ESE 8 | SE 8 | |
14 | 14 | 14 | 18 | 53 | 22 | 23 | 18 | 14 | 16 | 14 | 12 | 5 | 5 | 5 | 18 | 12 | 33 | 132 | 167 | 288 | 475 | 464 | 447 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | cross-off | glassy | |
High Tide | 4:12PM1.57m | 4:18AM1.69m | 4:56PM1.65m | 4:43AM1.73m | 5:34PM1.71m | 5:07AM1.74m | ||||||||||||||||||
Low Tide | 10:11PM0.62m | 10:40AM0.44m | 10:46PM0.66m | 11:09AM0.31m | 11:19PM0.71m | |||||||||||||||||||
 |  | |  | | | | |  | | |  | | |  |  | | | |  | | | | | |
 | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:15 | — | — |
 | — | — | 6:42 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | 6:44 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 6 | 3 | 4 | 6 | 9 | 7 | 6 | 4 | 1 | |
Temp °C | 23 | 23 | 21 | 18 | 18 | 17 | 17 | 20 | 21 | 19 | 18 | 16 | 14 | 14 | 12 | 13 | 14 | 14 | 15 | 17 | 17 | 17 | 16 | 17 |
20 | 21 | 22 | 18 | 18 | 17 | 17 | 21 | 20 | 17 | 18 | 15 | 12 | 12 | 10 | 12 | 13 | 13 | 14 | 15 | 15 | 16 | 15 | 18 | |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 12 | S 5 | S 6 | S 6 | SSW 6 | SSW 6 | SW 6 | SW 6 | SSW 5 | SW 5 | SE 11 | SE 11 | SE 11 | SE 9 | SE 9 | SE 9 | ESE 10 | S 13 | S 13 | ESE 8 | SE 8 |
 kJ | 11 | 6 | 6 | 14 | 20 | 22 | 23 | 18 | 14 | 9 | 5 | 3 | 1 | 5 | 5 | 18 | 12 | 12 | 14 | 9 | 3 | 3 | 464 | 447 |
Swell 2 Height (m) Direction Period (s) | ESE 12 | ESE 12 | ESE 12 | E 8 | ESE 12 | ESE 11 | E 8 | SE 11 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | E 9 | E 9 | S 13 | S 13 | — | — | — | NNE 4 |
| kJ | 14 | 14 | 14 | 5 | 13 | 13 | 5 | 5 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 7 | 6 | 4 | 3 | — | — | — | 6 |
Swell 3 Height (m) Direction Period (s) | SSE 6 | SE 6 | SSE 6 | — | E 8 | E 8 | SE 11 | E 8 | SSE 5 | S 5 | SE 11 | SE 11 | SE 11 | SW 5 | E 10 | E 10 | SE 5 | S 14 | — | — | — | — | — | SE 8 |
| kJ | 3 | 1 | 3 | — | 4 | 4 | 5 | 4 | 2 | 2 | 5 | 5 | 5 | 1 | 2 | 7 | 1 | 4 | — | — | — | — | — | 214 |
Wind waves Height (m) Direction Period (s) | SSW 3 | SSW 4 | SSW 4 | SSW 5 | SW 5 | NE 2 | NE 3 | NE 4 | NE 4 | NE 4 | NE 4 | NE 4 | NE 4 | NE 4 | NE 4 | NE 4 | NE 3 | ESE 5 | ESE 6 | ESE 6 | ESE 6 | ESE 7 | NNE 4 | N 4 |
| kJ | 6 | 11 | 13 | 18 | 53 | 1 | 3 | 6 | 8 | 16 | 14 | 12 | 14 | 16 | 12 | 6 | 2 | 33 | 132 | 167 | 288 | 475 | 13 | 30 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 336 | 2361 | 286 | 26 | 0 | 10 | 40 | 526 | 26 | 524 | 477 | 378 | 1041 | 1041 | 512 | 1041 | 1007 | 2 | 25 | 55 | 243 | 55 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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