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Surf Forecasts:
Kaifu Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Sunday 17 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
20.9° 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 1AM is: 0.7m 9s primary swell from a East-southeast direction and 0.3m 12s secondary swell from a Southeast direction (forecast issued at 08:00pm May 17). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 2.5ft (0.7m) | 9s |
| Afternoon (18 May) | 2.5ft (0.8m) | 9s |
| Evening (18 May) | 2ft (0.6m) | 9s |
Table - waves today at Kaifu Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 18mm), heaviest on Tue night. Warm (max 25°C on Mon morning, min 18°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wednesday 20 | |||||||||||||||||||||
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 | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | SE 11 | ESE 11 | ESE 11 | ESE 11 | SE 10 | SE 10 | SE 10 | SE 10 | |
88 | 67 | 68 | 70 | 71 | 71 | 70 | 86 | 88 | 61 | 88 | 90 | 130 | 133 | 135 | 160 | 163 | 143 | 143 | 143 | 160 | 157 | 151 | 148 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | off | glassy | off | off | glassy | on | on | cross-on | glassy | glassy | glassy | glassy | on | cross-on | cross-on | cross-on | on | cross | cross-off | cross-off | cross-off | cross | cross-on | |
High Tide | 6:52PM1.85m | 5:51AM1.87m | 7:42PM1.81m | 6:32AM1.85m | 8:35PM1.73m | 7:15AM1.79m | ||||||||||||||||||
Low Tide | 00:19AM0.89m | 12:46PM-0.12m | 1:03AM0.96m | 1:34PM-0.08m | 1:48AM1.03m | 2:24PM0.03m | ||||||||||||||||||
 |  | | | | | | | | | | |  | | | |  |  | | |  |  | |  | |
 | — | — | — | 5:00 | — | — | — | — | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:58 | — | — | — | — |
 | 6:55 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | 6:59 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | 6 | 3 | 2 | 1 | |
Temp °C | 23 | 21 | 20 | 19 | 19 | 24 | 25 | 24 | 22 | 20 | 19 | 18 | 18 | 22 | 24 | 24 | 22 | 20 | 19 | 20 | 20 | 21 | 21 | 22 |
24 | 21 | 20 | 18 | 18 | 24 | 24 | 24 | 23 | 22 | 20 | 19 | 18 | 22 | 24 | 24 | 24 | 22 | 21 | 22 | 22 | 24 | 24 | 24 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | SE 11 | ESE 11 | ESE 11 | ESE 11 | SE 10 | SSE 8 | S 8 | S 7 |
 kJ | 88 | 67 | 68 | 70 | 71 | 71 | 70 | 86 | 88 | 61 | 88 | 90 | 130 | 133 | 135 | 160 | 163 | 143 | 143 | 143 | 160 | 109 | 127 | 110 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | ESE 12 | SE 10 | SE 12 | SE 4 | SE 4 | SE 4 | SE 10 | — | — | — | SSE 4 | SSE 6 | SSE 7 | SSE 7 | SSE 8 | SE 10 | SE 10 | SE 10 |
| kJ | 19 | 23 | 22 | 24 | 23 | 23 | 14 | 4 | 21 | 4 | 4 | 4 | 27 | — | — | — | 13 | 16 | 26 | 38 | 92 | 157 | 151 | 148 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 10 | SE 10 | SE 10 | SE 10 | SE 12 | ESE 10 | SE 11 | — | — | ESE 10 | — | — | — | — | S 9 | S 9 | S 9 | — | — | — | — |
| kJ | — | — | — | 4 | 4 | 4 | 4 | 6 | 19 | 32 | — | — | 21 | — | — | — | — | 2 | 6 | 14 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SE 3 | SE 4 | — | — | — | — | — | — | — | SSE 6 | — | — | — | — | — | S 6 | S 6 |
| kJ | — | — | — | — | — | — | — | 4 | 7 | — | — | — | — | — | — | — | 27 | — | — | — | — | — | 124 | 128 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 461 | 6 | 6 | 0 | 0 | 0 | 0 | 6 | 6 | 6 | 6 | 10 | 2 | 0 | 0 | 0 | 25 | 25 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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