Surf Forecasts:
Yasuda Rivermouth surf forecast from 10 Oct 2026:
- Best quality surf: Sunday 11 Oct, 6AM (local time) - 6ft (1.9m), 12s period, ESE swell with cross-offshore winds.
- Most powerful swell: Monday 12 Oct, 9PM (local time) - 6.5ft (2.0m), 15s period, ESE swell with 1,622 kJ wave energy.
- Next surfable swell (1★+): Sunday 11 Oct, 6AM (local time) - 6ft (1.9m), 12s period with ESE swell.
Best Forecast Surf Conditions for Yasuda Rivermouth this week:
The surf forecast for Yasuda Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Oct 11) at 6AM. The primary swell is predicted to be 1.9m and 12s period with a secondary swell of 0.2m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Yasuda Rivermouth in the next 16 days are 2.0m 15s and forecast to arrive on Monday (Oct 12) at 9PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 10s period and expected on Monday (Oct 12) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 11th Oct) | 6ft (1.9m) 12s |
| Best Surf | 6AM (Sun 11th Oct) | 6ft (1.9m) 12s |
| Most Powerful | 9PM (Mon 12th Oct) | 6.5ft (2.0m) 15s |
Table - best surf conditions forecast for Yasuda Rivermouth over the next 16 days.
Short Range ForecastMostly dry. Warm (max 24°C on Sun morning, min 20°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Tue night. Warm (max 25°C on Wed morning, min 14°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | ||||||||||||||
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) | ESE 13 | ESE 12 | E 12 | E 11 | ESE 16 | ESE 16 | ESE 14 | ESE 13 | ESE 13 | ESE 12 | ESE 11 | E 10 | E 10 | E 9 | E 10 | ESE 8 | ESE 9 | E 9 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 690 | 1082 | 909 | 606 | 1126 | 1460 | 1578 | 1094 | 946 | 614 | 297 | 208 | 120 | 83 | 46 | 24 | 26 | 79 | 105 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | on | cross-off | glassy | cross-on | cross-off | glassy | on | on | cross | cross | cross-off | glassy | cross-on | off | glassy | glassy | off |
High Tide | 6:05AM1.86m | 5:57PM1.82m | 6:41AM1.84m | 6:20PM1.81m | 7:17AM1.77m | 6:42PM1.77m | 7:52AM1.68m | 7:05PM1.72m | 8:29AM1.56m | 7:28PM1.65m | 9:12AM1.44m | 7:53PM1.57m | |||||||
Low Tide | 11:47PM0.26m | 12:03PM0.51m | 00:17AM0.18m | 12:31PM0.61m | 00:47AM0.16m | 12:58PM0.72m | 1:17AM0.19m | 1:23PM0.83m | 1:49AM0.26m | 1:48PM0.93m | 2:24AM0.37m | 2:13PM1.03m | |||||||
 |  | |  |  | | | | |  | | | | | | | |  | | |
 | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | — | 5:36 | — | — | 5:35 | — | — | 5:34 | — | — | 5:31 | — | — | 5:30 | — | — | 5:30 | — |
mm | — | — | — | — | — | — | — | — | — | 11 | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 24 | 24 | 22 | 24 | 23 | 21 | 24 | 24 | 23 | 25 | 24 | 17 | 20 | 20 | 16 | 22 | 21 | 18 |
Feels °C | 23 | 25 | 25 | 24 | 25 | 25 | 23 | 25 | 25 | 24 | 22 | 20 | 15 | 19 | 19 | 15 | 21 | 21 | 16 |
Swell 1 Height (m) Direction Period (s) | ESE 13 | ESE 12 | E 12 | E 11 | ESE 16 | ESE 16 | ESE 14 | ESE 13 | ESE 13 | ESE 12 | ESE 11 | E 10 | E 10 | E 9 | E 10 | ESE 8 | E 8 | E 9 | E 8 |
| kJ | 690 | 1082 | 909 | 606 | 1126 | 1460 | 1578 | 1094 | 946 | 614 | 297 | 208 | 120 | 83 | 46 | 24 | 30 | 79 | 105 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | S 8 | S 8 | ESE 18 | E 11 | E 10 | E 9 | E 9 | E 10 | — | SW 5 | SW 5 | ENE 6 | ENE 6 | ESE 9 | E 9 | ESE 9 | ESE 9 | SE 8 |
| kJ | 188 | 5 | 5 | 395 | 319 | 244 | 157 | 198 | 225 | — | 35 | 16 | 21 | 14 | 16 | 15 | 26 | 15 | 3 |
Swell 3 Height (m) Direction Period (s) | S 9 | — | SE 20 | S 7 | — | — | — | — | — | — | — | — | SW 5 | — | ENE 5 | NE 5 | ENE 5 | — | SE 8 |
| kJ | 2 | — | 15 | 4 | — | — | — | — | — | — | — | — | 1 | — | 5 | 6 | 10 | — | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 5 | NW 4 | NNW 3 | NE 6 | — | NE 5 | NE 4 | NE 4 | NE 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | 64 | 14 | 1 | 95 | — | 13 | 13 | 9 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 22 | 0 | 0 | 64 | 0 | 0 | 34 | 22 | 20 | 20 | 0 | 0 | 29 | 30 | 247 | 0 | 0 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Yasuda 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 Yasuda Rivermouth Surf forecast
The above surf forecast table for Yasuda Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Yasuda Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Yasuda 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 (Yasuda 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 Yasuda 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.
Are you planning a holiday in Shikoku? If you are looking for accommodation near Yasuda Rivermouth, camping, hotels and holiday cottages in Shikoku, consider staying in Aki which is 10 km (6 miles) away. Other places in and around Shikoku where you can find information about places to rent, and car hire include Muroto which is 23 km (14 miles) away, Kochi, Ino and Susaki.
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