Surf Forecasts:
Sosanji Rivermouth surf forecast from 21 Jun 2026:
- Best quality surf: Sunday 28 Jun, 3AM (local time) - 13ft (4.0m), 14s period, S swell with cross-shore winds.
- Most powerful swell: Sunday 28 Jun, 3AM (local time) - 13ft (4.0m), 14s period, S swell with 7,274 kJ wave energy.
- Next surfable swell (1★+): Monday 22 Jun, 12AM (local time) - 1.5ft (0.5m), 9s period with SE swell.
Best Forecast Surf Conditions for Sosanji Rivermouth this week:
The surf forecast for Sosanji Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jun 22) at 12AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.4m and 5s. Another secondary swell of 0.4m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sosanji Rivermouth in the next 16 days are 4.0m 14s and forecast to arrive on Sunday (Jun 28) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 5s period and expected on Sunday (Jun 28) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 22nd Jun) | 1.5ft (0.5m) 9s |
| Best Surf | 3AM (Sun 28th Jun) | 13ft (4.0m) 14s |
| Most Powerful | 3AM (Sun 28th Jun) | 13ft (4.0m) 14s |
Table - best surf conditions forecast for Sosanji Rivermouth over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 199mm), heaviest during Tue afternoon. Warm (max 24°C on Sun night, min 19°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 74mm), heaviest during Fri morning. Warm (max 29°C on Sat afternoon, min 22°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sun 28 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SE 9 | ESE 9 | ESE 10 | NE 6 | ESE 9 | SSE 12 | S 11 | SE 6 | SSE 10 | SSE 7 | SE 7 | SE 6 | S 12 | SSE 6 | S 9 | S 9 | S 8 | NE 5 | E 6 | SSE 9 | SSW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 41 | 55 | 64 | 72 | 56 | 48 | 64 | 77 | 125 | 185 | 244 | 113 | 75 | 42 | 55 | 55 | 48 | 48 | 511 | 695 | 254 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | on | cross | cross-on | cross-on | cross | cross-on | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | cross | cross-on | cross-off |
High Tide | 11:06PM1.83m | 10:57AM1.58m | 11:53PM1.81m | 12:28PM1.52m | 00:43AM1.80m | 2:05PM1.55m | 1:35AM1.82m | 3:28PM1.64m | 2:25AM1.85m | 4:31PM1.76m | 3:14AM1.90m | 5:22PM1.87m | 3:59AM1.96m | ||||||||
Low Tide | 5:18AM0.96m | 5:10PM0.76m | 6:29AM0.86m | 6:13PM0.94m | 7:38AM0.72m | 7:26PM1.07m | 8:40AM0.56m | 8:38PM1.16m | 9:33AM0.39m | 9:42PM1.20m | 10:21AM0.24m | 10:35PM1.20m | 11:04AM0.12m | ||||||||
 |  |  |  |  | | | | | |  | |  |  |  |  | | |  | |  | |
 | — | 5:09 | — | — | 5:09 | — | — | 5:09 | — | — | 5:09 | — | — | 5:09 | — | — | 5:09 | — | — | 5:09 | — |
 | 7:22 | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 |
mm | — | — | 5 | 55 | 19 | 38 | 47 | 23 | 12 | 19 | 9 | 11 | 3 | 11 | 3 | 15 | 1 | 2 | 2 | 9 | — |
Temp °C | 24 | 23 | 23 | 20 | 20 | 20 | 22 | 22 | 22 | 22 | 23 | 24 | 24 | 26 | 27 | 25 | 28 | 29 | 26 | 26 | 27 |
Feels °C | 28 | 25 | 25 | 20 | 19 | 21 | 24 | 26 | 25 | 25 | 26 | 27 | 28 | 30 | 31 | 29 | 30 | 30 | 30 | 25 | 23 |
Swell 1 Height (m) Direction Period (s) | SE 9 | ESE 9 | ESE 10 | SE 10 | ESE 9 | ESE 8 | ESE 6 | SE 6 | SE 6 | S 11 | S 11 | SE 6 | SE 6 | SSE 6 | S 9 | S 9 | S 8 | S 7 | S 16 | SSE 9 | SSE 8 |
| kJ | 41 | 55 | 64 | 45 | 56 | 48 | 55 | 69 | 52 | 57 | 40 | 113 | 49 | 42 | 55 | 55 | 48 | 24 | 77 | 695 | 188 |
Swell 2 Height (m) Direction Period (s) | S 5 | S 5 | SE 12 | SE 11 | SSE 12 | SSE 12 | S 11 | SSE 10 | SSE 10 | ESE 11 | ENE 10 | ESE 11 | S 12 | E 9 | SE 6 | SE 6 | ESE 6 | SE 10 | SW 16 | NE 8 | S 9 |
| kJ | 8 | 4 | 38 | 29 | 30 | 47 | 64 | 77 | 125 | 45 | 33 | 46 | 75 | 38 | 14 | 9 | 7 | 24 | 65 | 86 | 81 |
Swell 3 Height (m) Direction Period (s) | NE 4 | NE 5 | S 4 | E 12 | SSE 10 | SSE 10 | SE 10 | SE 12 | ESE 10 | ENE 4 | ESE 11 | ENE 10 | ESE 10 | S 8 | E 8 | SE 10 | SE 10 | S 14 | SSW 8 | ESE 16 | ENE 8 |
| kJ | 3 | 3 | 2 | 3 | 10 | 9 | 39 | 66 | 42 | 6 | 46 | 32 | 40 | 19 | 23 | 25 | 24 | 36 | 12 | 25 | 11 |
Wind waves Height (m) Direction Period (s) | NE 4 | — | — | NE 6 | NE 5 | ENE 5 | ESE 5 | — | — | SSE 7 | SE 7 | — | SSW 6 | SSW 5 | SSW 5 | — | NNE 2 | NE 5 | E 6 | — | SSW 9 |
| kJ | 5 | — | — | 72 | 33 | 42 | 32 | — | — | 185 | 244 | — | 10 | 21 | 14 | — | 1 | 48 | 511 | — | 254 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 24 | 0 | 0 | 47 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 37 | 51 | 2 | 428 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
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 Sosanji 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 Sosanji Rivermouth Surf forecast
The above surf forecast table for Sosanji Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sosanji Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Sosanji 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 (Sosanji 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 Sosanji 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.
Sosanji Rivermouth is 12 km (7 miles) from Miyazaki-shi. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Miyazaki-shi. Miyazaki-shi has rooms for a wide range of budgets as well as car hire and transport links.
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