Surf Forecasts:
Kaifu Rivermouth surf forecast from 20 Jun 2026:
- Best quality surf: Sunday 21 Jun, 12PM (local time) - 7ft (2.1m), 8s period, SW swell with glassy winds.
- Most powerful swell: Sunday 21 Jun, 9AM (local time) - 7.5ft (2.3m), 8s period, SW swell with 667 kJ wave energy.
- Next surfable swell (1★+): Sunday 21 Jun, 6AM (local time) - 5ft (1.6m), 8s period with SSW swell.
Best Forecast Surf Conditions for Kaifu Rivermouth this week:
The surf forecast for Kaifu Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jun 21) at 6AM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.4m and 9s. Another secondary swell of 0.2m and 12s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kaifu Rivermouth in the next 16 days are 2.3m 8s and forecast to arrive on Sunday (Jun 21) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Monday (Jun 22) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 21st Jun) | 5ft (1.6m) 8s |
| Best Surf | 12PM (Sun 21st Jun) | 7ft (2.1m) 8s |
| Most Powerful | 9AM (Sun 21st Jun) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Kaifu Rivermouth over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 13mm), heaviest on Mon night. Warm (max 28°C on Sun morning, min 19°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Thu night. Warm (max 25°C on Tue afternoon, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SE 10 | SSW 6 | SSW 7 | SW 8 | SSW 7 | SSW 7 | SE 10 | SE 10 | SE 10 | SSE 12 | S 11 | SE 12 | SE 12 | SE 12 | S 10 | SSW 12 | SSW 13 | S 12 | SSW 12 | SE 6 | SSW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 35 | 55 | 264 | 667 | 193 | 62 | 35 | 35 | 48 | 46 | 37 | 89 | 89 | 87 | 125 | 94 | 231 | 344 | 180 | 244 | 180 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | glassy | off | glassy | cross-on | glassy | cross | cross | cross-off | cross | glassy | glassy | glassy | cross | glassy | on | cross-on | glassy |
High Tide | 9:06AM1.59m | 10:40PM1.61m | 10:10AM1.45m | 11:24PM1.57m | 11:28AM1.34m | 00:07AM1.54m | 1:01PM1.29m | 00:53AM1.53m | 2:33PM1.31m | 1:40AM1.52m | 3:47PM1.38m | 2:27AM1.53m | 4:41PM1.46m | ||||||||
Low Tide | 3:50PM0.37m | 4:35AM0.87m | 4:37PM0.57m | 5:42AM0.81m | 5:29PM0.75m | 6:52AM0.73m | 6:28PM0.90m | 7:57AM0.63m | 7:37PM1.00m | 8:52AM0.53m | 8:47PM1.06m | 9:39AM0.44m | 9:46PM1.07m | ||||||||
 | |  |  | | | | |  | |  |  | |  |  | | |  |  | |  | |
 | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — |
 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — |
mm | 1 | 2 | — | — | — | — | — | 1 | 9 | — | — | — | — | — | — | — | — | 14 | 54 | 21 | 10 |
Temp °C | 27 | 25 | 25 | 28 | 28 | 22 | 27 | 26 | 20 | 24 | 25 | 22 | 25 | 24 | 22 | 23 | 22 | 21 | 22 | 22 | 24 |
Feels °C | 29 | 27 | 27 | 32 | 31 | 24 | 29 | 28 | 22 | 22 | 24 | 23 | 25 | 25 | 24 | 25 | 23 | 23 | 24 | 24 | 28 |
Swell 1 Height (m) Direction Period (s) | S 6 | SE 10 | SE 10 | SSW 8 | SE 9 | SSW 7 | SSW 6 | SE 10 | SE 10 | SE 10 | SE 9 | SE 12 | S 10 | S 10 | S 10 | S 10 | SSW 13 | S 12 | SSW 12 | SE 6 | SE 7 |
| kJ | 16 | 34 | 33 | 251 | 12 | 62 | 20 | 35 | 48 | 36 | 31 | 89 | 76 | 69 | 125 | 90 | 231 | 344 | 180 | 194 | 75 |
Swell 2 Height (m) Direction Period (s) | SE 10 | S 8 | SE 12 | SE 9 | SE 11 | SE 9 | SE 10 | SSW 6 | SSE 11 | SSE 12 | S 11 | SSE 10 | SE 12 | SE 12 | SE 11 | SSW 12 | SE 11 | SE 10 | SE 10 | SSW 12 | SSW 12 |
| kJ | 35 | 1 | 6 | 31 | 19 | 29 | 35 | 11 | 25 | 46 | 37 | 35 | 89 | 87 | 75 | 94 | 73 | 50 | 36 | 121 | 180 |
Swell 3 Height (m) Direction Period (s) | SE 13 | SE 12 | — | SE 11 | E 18 | SE 11 | SE 16 | S 12 | SSW 6 | SSW 5 | SE 13 | S 12 | SW 6 | ESE 4 | E 6 | SE 11 | E 19 | E 19 | SSW 15 | SW 13 | SE 10 |
| kJ | 7 | 6 | — | 20 | 6 | 19 | 10 | 12 | 3 | 2 | 27 | 27 | 1 | 1 | 1 | 75 | 7 | 7 | 21 | 88 | 26 |
Wind waves Height (m) Direction Period (s) | — | SSW 6 | SSW 7 | SW 8 | SSW 7 | NNE 5 | — | NE 4 | — | NNE 4 | NE 3 | NE 2 | NE 4 | E 4 | — | SSW 3 | S 4 | SSE 5 | SE 6 | SE 6 | — |
| kJ | — | 55 | 264 | 667 | 193 | 4 | — | 2 | — | 8 | 5 | 2 | 2 | 4 | — | 3 | 9 | 28 | 165 | 244 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 26 | 336 | 23 | 4 | 0 | 0 | 2 | 23 | 2 | 2 | 2 | 0 | 4 | 0 | 0 | 0 | 6 | 0 | 40 | 40 | 0 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kaifu Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Kaifu Rivermouth Surf forecast
The above surf forecast table for Kaifu Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kaifu Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Kaifu Rivermouth surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kaifu Rivermouth) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Kaifu Rivermouth may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Kaifu Rivermouth is 40 km (25 miles) from Muroto. If you plan a holiday in Shikoku, look for hotels and other accommodation in Muroto. Muroto has rooms for a wide range of budgets as well as car hire and transport links.
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