Niyodo Rivermouth Surf Forecast

/ Shikoku (17 surf breaks) /

Japan (129 surf breaks)

Surf Forecasts:

Niyodo Rivermouth surfForecast / Shikoku / Japan

48hr Weather and Surf, issued 8 am Sunday 09 Nov 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Niyodo Rivermouth sea temperature is 24.3° C
(Which is 1.5°C warmer than normal for this time of year)

How big are the waves at Niyodo Rivermouth today?

The current surf forecast for Niyodo Rivermouth at 1PM is: 2.1m 6s primary swell from a South-southwest direction and 0.7m 10s secondary swell from a East-southeast direction, 0.4m 15s secondary swell from a South-southeast direction (forecast issued at 08:00am November 09). The wind direction is predicted to be cross-shore.

Time (JST) & Date	Wave Height	Wave Period
Morning (09 Nov)	2.5ft (0.8m)	10s
Afternoon (09 Nov)	7ft (2.2m)	7s
Evening (09 Nov)	4.5ft (1.3m)	7s

Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Sunday 09						Monday 10								Tuesday 11								Wed 12
	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM
Rating (10 max)	0	0	0	3	2	2	2	2	2	2	1	2	2	2	2	3	3	3	3	3	3	3	3	3
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	SSW	SSW	S	S	SE	SE	SE	SE	SE	ESE	S	S	SSE	S	S	S	SSW	S	S	SSW	SSW	SSW
Period(s) (?)	10	10	6	7	7	7	9	8	8	8	8	9	14	14	13	14	13	13	15	14	13	13	13	13
Wave Graph (?)
kJ (?)	136	136	328	424	236	152	178	162	162	138	153	92	96	202	273	640	495	784	462	905	824	700	590	476
Wind (km/h)	S	SSW	SW	NNW	NNW	N	NNW	NNW	NNW	NNW	NNW	NNW	N	NNW	N	N	N	N	S	S	N	N	N	N
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	on	cross- on	glass	off	off	off	off	off	off	cross- off	off	off	off	off	off	off	off	glass	on	glass	off	off	off
High Tide / height (m)		8:51AM 1.71				7:34PM 1.74					9:53AM 1.58			8:19PM 1.62					11:09AM 1.49				9:21PM 1.47
Low Tide / height (m)				2:06PM 1.03				2:43AM 0.14				2:58PM 1.12					3:42AM 0.32				4:12PM 1.17

	Sunday 09						Monday 10								Tuesday 11								Wed 12
Sunrise	-	6:30	-	-	-	-	-	-	-	6:31	-	-	-	-	-	-	-	6:31	-	-	-	-	-	-
Sunset	-	-	-	5:07	-	-	-	-	-	-	-	5:06	-	-	-	-	-	-	-	5:05	-	-	-	-

Rain (mm)	2	8	17	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	19	20	21	21	20	19	17	17	16	16	17	17	13	11	9	9	9	13	17	17	15	12	11	11
Feels °C (?)	18	19	20	24	22	18	15	15	13	12	12	13	9	7	5	5	6	10	16	15	13	8	7	8

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

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 Niyodo 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.