Sosanji Rivermouth Surf Forecast

/ Kyu Shu (26 surf breaks) /

Japan (129 surf breaks)

Surf Forecasts:

Sosanji Rivermouth surfForecast / Kyu Shu / Japan

12 Day Weather and Surf, issued 8 pm Wednesday 05 Nov 2025 JST

Forecast update in hr min s Forecast update imminent

Sosanji Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Sosanji Rivermouth sea temperature is 26.2° C
(Which is 2.0°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Sosanji Rivermouth this week:

The surf forecast for Sosanji Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Nov 08) at 3AM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 0.1m and 8s. Another secondary swell of 0.3m 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 12 days are 2.5m 9s and forecast to arrive on Thursday (Nov 06) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 6s period and expected on Friday (Nov 07) at 3AM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	3AM (Sat 8th Nov)	5.5ft (1.7m) 11s
Best Surf	9PM (Mon 10th Nov)	4ft (1.2m) 13s
Most Powerful	12PM (Thu 6th Nov)	8ft (2.5m) 9s

Table - best surf conditions forecast for Sosanji Rivermouth over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 3mm), mostly falling on Wed night. Warm (max 21°C on Thu afternoon, min 16°C on Thu night). Mainly fresh winds.										Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Sat night. Warm (max 24°C on Sun morning, min 16°C on Mon night). Wind will be generally light.
		Thursday 06			Friday 07			Saturday 08			Sunday 09			Monday 10			Tuesday 11			Wed 12
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	0	1	1	1	2	0	2	3	2	3	3	3	2	3	3	2	1	1	1	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	E	E	E	E	E	E	E	E	ESE	ESE	ESE	SSE	SSE	SSE	SSE	S	S	S	ESE
Period(s) (?)	8	9	9	9	9	9	11	11	10	10	10	10	10	13	14	13	13	12	12	11	9
Wave Graph (?)
kJ (?)	289	702	982	495	501	434	701	917	857	489	424	425	411	421	529	447	418	314	196	127	110
Wind (km/h)	NNE	NNE	NE	NNE	N	NE	NNE	ENE	ENE	SE	SW	WSW	NNE	N	E	NNE	NNE	NE	NNE	NNE	NNE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross	cross- on	cross	cross	cross- on	cross	cross- on	cross- on	glass	cross- off	cross- off	cross	cross- off	on	cross	cross- on	cross- on	cross	cross- on	cross- on
High Tide / height (m)		6:38AM 2.07	5:53PM 2.08		7:18AM 2.03		6:22PM 2.06	8:01AM 1.97		6:53PM 2.01	8:47AM 1.88		7:26PM 1.93	9:39AM 1.79		8:04PM 1.82	10:41AM 1.71		8:53PM 1.68	11:54AM 1.68
Low Tide / height (m)	12:01AM 0.07		12:15PM 0.87	12:36AM 0.02		12:48PM 0.97	1:12AM 0.02		1:23PM 1.06	1:50AM 0.07		2:01PM 1.16	2:32AM 0.17		2:46PM 1.24		3:21AM 0.30	3:49PM 1.29		4:19AM 0.45	5:24PM 1.28

		Thursday 06			Friday 07			Saturday 08			Sunday 09			Monday 10			Tuesday 11			Wed 12
Sunrise	-	6:33	-	-	6:33	-	-	6:35	-	-	6:35	-	-	6:37	-	-	6:37	-	-	6:39	-
Sunset	-	-	5:21	-	-	5:20	-	-	5:19	-	-	5:19	-	-	5:17	-	-	5:16	-	-	5:16

Rain (mm)	3	-	-	-	-	-	-	-	-	2	1	1	-	-	-	-	-	-	-	-	-
Temp. °C	18	20	21	20	19	20	19	20	21	21	24	23	20	19	20	18	17	18	18	17	19
Feels °C (?)	13	17	19	15	16	17	16	17	19	21	21	23	21	18	19	17	15	15	15	14	18

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Quick surf report for Sosanji Rivermouth:

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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 12 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.