Niyodo Rivermouth Surf Forecast

/ Shikoku (17 surf breaks) /

Japan (129 surf breaks)

Surf Forecasts

Niyodo Rivermouth surfForecast / Shikoku / Japan

48hr Weather and Surf, issued 2 pm Wednesday 09 Jul 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 27.4° C
(Which is 1.3°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 5PM is: 0.5m 11s primary swell from a Southeast direction and 0.4m 9s secondary swell from a East-southeast direction, 0.5m 4s secondary swell from a Southeast direction (forecast issued at 02:00pm July 09). The wind direction is predicted to be cross-onshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (09 Jul)	-	-
Afternoon (09 Jul)	1.5ft (0.5m)	11s
Evening (09 Jul)	1.5ft (0.5m)	11s

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

Hourly 12 Days

Shikoku Surf

Print Surf Table

Updates in hr min s Forecast update imminent

	Wednesday 09				Thursday 10								Friday 11								Saturday 12								Sunday 13								Monday 14								Tuesday 15								Wednesday 16
	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	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	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
Rating (10 max)	0	0	1	1	1	1	1	1	0	0	0	2	2	2	2	2	2	1	0	2	2	2	2	2	0	1	2	2	2	2	2	2	0	1	1	2	2	1	1	0	0	0	0	1	1	1	1	1	0	1	2	2	2	2	2	2	1	0	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	SE	SE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE
Period(s) (?)	12	11	11	11	11	11	11	6	6	6	6	7	7	7	7	7	7	7	7	7	7	7	8	8	8	8	8	8	8	8	8	8	8	9	9	9	9	9	8	8	8	8	8	8	8	10	10	10	10	10	10	10	10	10	10	10	10	11	10	10
Wave Graph (?)
Energy (?)	124	99	104	116	129	138	148	128	164	161	190	205	201	228	226	232	208	218	193	211	344	303	352	393	474	502	522	474	450	380	323	284	261	314	308	253	202	183	149	121	123	113	125	166	168	197	181	163	190	238	281	268	252	241	309	345	340	387	338	340
Wind (km/h)	SSE	SSE	SSE	NE	NNE	NNE	NNE	S	SSE	SE	ESE	NE	NNE	NNE	NW	W	SW	SSE	ESE	NE	NNE	N	NNE	S	SSE	SE	SE	NE	N	NNW	NNE	S	S	SSW	SSW	NNE	NNE	NNE	N	S	SSE	SE	E	N	N	N	N	W	S	S	S	N	N	NNE	N	SSE	S	SSE	SE	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	on	glass	glass	glass	cross- off	off	glass	on	cross- on	cross- on	cross- off	off	cross- off	glass	glass	glass	cross- on	cross- on	cross- off	glass	glass	glass	glass	cross- on	cross- on	cross- on	glass	glass	off	glass	glass	on	on	cross- on	glass	glass	glass	glass	on	cross- on	cross- on	cross	off	glass	off	off	glass	on	on	glass	glass	off	off	off	glass	on	on	cross- on	cross
High Tide / height (m)				6:10PM 1.64			4:49AM 1.66					6:43PM 1.69			5:30AM 1.72					7:16PM 1.73				6:10AM 1.76				7:48PM 1.75				6:50AM 1.78				8:20PM 1.76				7:32AM 1.76				8:52PM 1.75				8:17AM 1.71					9:25PM 1.74				9:07AM 1.62
Low Tide / height (m)					11:28PM 1.03				11:47AM 0.16					12:05AM 0.99				12:24PM 0.10				12:40AM 0.94				1:00PM 0.08				1:17AM 0.89				1:36PM 0.10				1:55AM 0.84				2:12PM 0.17				2:35AM 0.78				2:49PM 0.28					3:21AM 0.73				3:28PM 0.44

	Wednesday 09				Thursday 10								Friday 11								Saturday 12								Sunday 13								Monday 14								Tuesday 15								Wednesday 16
Sunrise	-	-	-	-	-	-	5:01	-	-	-	-	-	-	-	5:03	-	-	-	-	-	-	-	5:03	-	-	-	-	-	-	-	5:03	-	-	-	-	-	-	-	5:05	-	-	-	-	-	-	-	5:05	-	-	-	-	-	-	-	5:05	-	-	-	-	-
Sunset	-	-	7:17	-	-	-	-	-	-	-	7:17	-	-	-	-	-	-	-	7:16	-	-	-	-	-	-	-	7:16	-	-	-	-	-	-	-	7:16	-	-	-	-	-	-	-	7:15	-	-	-	-	-	-	-	7:15	-	-	-	-	-	-	-	7:15	-

Rain (mm)	1	2	1	-	-	-	-	-	-	1	2	1	-	-	-	-	-	1	2	1	2	-	-	-	1	2	2	1	-	-	-	-	-	-	-	-	-	-	-	-	-	2	8	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	1	3
Temp. °C	29	29	28	26	25	25	24	28	30	30	28	27	25	25	25	26	28	28	28	26	25	25	25	28	29	29	28	26	25	25	25	28	29	29	28	27	26	25	25	28	29	28	24	24	24	23	23	27	29	29	28	26	25	25	25	28	29	30	29	27
Feels °C (?)	32	33	33	31	29	29	27	32	32	32	31	31	29	28	29	30	32	32	33	30	29	29	29	32	32	32	32	31	29	29	29	33	32	33	32	33	31	29	29	32	32	31	27	28	28	25	25	30	31	32	32	30	28	28	28	31	32	33	33	30

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

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Niyodo Rivermouth surfForecast / Shikoku / Japan

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