Surf spot

Niyodogawakakou

Forecast conditions and map view for Niyodogawakakou in Japan, Shikoku. Open the interactive surf map to inspect wind, waves, and nearby spots.

Country: Japan, Shikoku
Coordinates: 33.4589, 133.4810

Metric
Metric	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00
Wave height (m)	0.9	0.8	0.7	0.6	0.5	0.5	0.5	0.5	0.5	0.5	0.6	0.6	0.6	0.5	0.6	0.6	0.7	0.8	0.9	0.9	0.9	1	1	1	1	1.1	1.1	1.1	1.1	1	1	1	0.9	0.9	0.9	0.9	0.9	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.6	1	1.2	1.4	1.4	1.6	1.7	1.7
Wave direction	SSE	SSE	SSE	SSE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	SE	ESE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE
Wave period (s)	5.5	5.2	5	4.9	7.8	7.5	7.1	9	7.3	9.5	9.1	7.6	7.1	7.2	5.5	5.7	5.8	5.8	5.7	6.1	6.4	6.5	6.6	6.8	6.9	7	7	6.9	6.8	6.8	6.9	7	7	6.9	6.9	6.8	6.8	6.9	7	7	7.1	7	7	7	6.8	6.7	6.4	6.2	6.5	5.8	5.8	6.2	6.4	7	6.8	6.8
Wave energy (kJ)	44	32	22	16	35	31	29	41	29	49	52	36	36	24	19	26	32	45	48	63	72	78	84	89	103	114	123	119	105	102	91	90	85	84	81	76	69	67	65	60	68	67	66	62	59	55	52	51	35	64	92	148	165	254	280	276
Wind speed (km/h)	3.1	2.5	2.6	5.5	6.3	6	4.9	4.7	4.8	4.1	2.5	5.7	8.2	10.7	3.8	5	5.3	5.4	5.1	1.4	10.2	10.5	2.9	4.3	4.4	4.6	4.9	1	8.4	8.9	1.8	4.4	5.4	4.8	4.1	2.6	2.6	3	3.4	3.8	5	5.1	5.6	0.8	9.5	10	4.7	5.5	5.6	5	5.2	1.5	10.3	6.7	1.9	3.8
Wind direction	SWGlassy	SGlassy	WSWGlassy	SCross	SSWCross	SSECross-on	SSEGlassy	WGlassy	NWGlassy	NNWGlassy	NGlassy	ENEOnshore	SECross-on	SECross-on	SEGlassy	NNWCross-off	NNWCross-off	NWCross-off	NWCross-off	EGlassy	SSECross-on	SSECross-on	SSEGlassy	NNWGlassy	NWGlassy	NWGlassy	NWGlassy	NEGlassy	SECross-on	SSECross-on	SGlassy	NWGlassy	NWCross-off	NWGlassy	NWGlassy	ENEGlassy	NEGlassy	ESEGlassy	ENEGlassy	NWGlassy	NNWCross-off	NWCross-off	NWCross-off	NNEGlassy	SSECross-on	SSECross-on	SSWGlassy	WOffshore	NWCross-off	NNWCross-off	NWCross-off	ENEGlassy	SECross-on	SECross-on	SSEGlassy	NWGlassy

Niyodogawakakou (Japan, Shikoku) is a scenic river-mouth surf spot on the island of Shikoku, known for its connection to the Niyodo River area. It’s a lesser-known, more local-feeling wave compared with Japan’s famous surf beaches, and conditions can be highly dependent on swell direction, sand movement, and river influence.

What it’s like

Type of break: Usually a beach/river-mouth style setup
Wave character: Can offer fun, clean waves when swell lines up well, but it’s often inconsistent
Best on: The right combination of typhoon swell, favorable wind, and a workable sandbar/river-mouth shape
Crowds: Typically lighter than major surf hubs, though local surfers may know it well

Environment

Surrounded by the lush scenery of Shikoku
The area near the Niyodo River is famous for clear water and natural beauty
Conditions may change after heavy rain because river flow can affect both water quality and sand placement

Good to know

Seasonality: Japan’s best surf in Shikoku often comes from summer to autumn typhoon swells
Water conditions: Can be impacted by freshwater runoff
Experience level: Often better suited to surfers who can read shifting beachbreaks and changing conditions