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Surf Forecasts:
Kaifu Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 pm Wednesday 20 May 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
21.5° C
(Which is normal for this time of year)How big are the waves at Kaifu Rivermouth today?
The current surf forecast for Kaifu Rivermouth at 10PM is: 0.8m 10s primary swell from a East-southeast direction and 0.9m 5s secondary swell from a South-southeast direction, 1.1m 5s secondary swell from a South direction (forecast issued at 02:00pm May 20). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | - | - |
| Afternoon (20 May) | 3ft (0.9m) | 10s |
| Evening (20 May) | 2.5ft (0.8m) | 10s |
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 33mm), heaviest during Fri night. Warm (max 24°C on Thu morning, min 19°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | S 6 | S 7 | S 7 | SSW 7 | SSW 8 | SSW 8 | SSW 8 | SW 8 | SSW 8 | SSW 7 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | ESE 6 | ESE 6 | ESE 7 | |
182 | 178 | 175 | 125 | 125 | 122 | 153 | 240 | 269 | 390 | 512 | 393 | 373 | 794 | 253 | 164 | 127 | 100 | 77 | 35 | 35 | 131 | 292 | 473 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | glassy | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | glassy | cross-on | cross-on | cross-off | cross-off | cross-off | cross | cross-on | on | on | |
High Tide | 9:31PM1.64m | 8:04AM1.69m | 10:32PM1.57m | 9:03AM1.55m | 11:37PM1.53m | |||||||||||||||||||
Low Tide | 2:41AM1.07m | 3:18PM0.18m | 3:46AM1.10m | 4:18PM0.35m | 5:10AM1.07m | |||||||||||||||||||
 |  | |  |  |  |  | | | | | | | | |  | | | | |  |  |  | | |
 | — | — | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:56 | — | — |
 | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | 7:00 |
— | 2 | 1 | — | — | — | — | — | — | 1 | 1 | — | — | — | — | 1 | 1 | — | — | — | 1 | 6 | 7 | 6 | |
Temp °C | 23 | 22 | 23 | 23 | 22 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 21 | 23 | 24 | 23 | 21 | 20 | 19 | 19 | 20 | 20 |
27 | 26 | 27 | 26 | 24 | 24 | 25 | 25 | 24 | 25 | 24 | 25 | 25 | 25 | 24 | 25 | 26 | 25 | 21 | 20 | 20 | 19 | 18 | 18 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | SE 10 | ESE 10 | ESE 10 | SSW 8 | SSW 8 | SSW 7 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | SW 7 | SW 6 | SSW 6 |
 kJ | 182 | 178 | 175 | 125 | 125 | 122 | 117 | 113 | 110 | 108 | 92 | 81 | 61 | 328 | 253 | 164 | 127 | 100 | 77 | 34 | 35 | 11 | 6 | 4 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 5 | — | — | — | — | — | — | — | — | — | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 10 | SSW 7 | SW 7 | S 6 | S 6 | — |
| kJ | 34 | 35 | 38 | 45 | — | — | — | — | — | — | — | — | — | 63 | 63 | 63 | 60 | 50 | 35 | 32 | 23 | 7 | 12 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 3 | NE 3 | NE 4 | — | ESE 10 | ESE 10 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 2 | — | 35 | 35 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | S 6 | S 6 | S 6 | S 7 | S 7 | SSW 7 | SSW 8 | SSW 8 | SSW 8 | SW 8 | NE 2 | NE 3 | NNE 3 | N 4 | N 4 | NNE 3 | E 3 | ESE 6 | ESE 6 | ESE 7 |
| kJ | — | — | — | — | 80 | 102 | 153 | 240 | 269 | 390 | 512 | 393 | 373 | 794 | 1 | 5 | 8 | 10 | 9 | 1 | 2 | 131 | 292 | 473 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 0 | 2 | 0 | 25 | 4 | 0 | 0 | 0 | 40 | 63 | 286 | 286 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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