Shikoku Surf Forecast and Eyeball Surf Report

Lat Long: 33.54° N 133.69° E

Issued: 2 am 27 Aug 2026 (local time)

Forecast update in hr min

Today's Niyodo Rivermouth sea temperature is

28.9°C

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

Detailed Shikoku surf forecast maps and the latest eyeball surf report from local surfers in the region. Near-shore swell is shown on the map together with the surf forecast rating for spots in Shikoku. Find the best places to surf in offshore conditions by selecting the wind option on the forecast map. Windsurfers and kite surfers can also use this option to find more favorable cross-shore conditions in Shikoku. Our local Wavefinder indicates where some of the best conditions are likely to be found in Shikoku over the next 7 days. Surf photos from Shikoku and reviews of the best spots and surfing conditions have been provided by local surfers.

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Wave Energy Map

Wave Height Map

Wind Map

Please enable JavaScript to access the following map views:All map types that you can enable here: Shikoku Colour Base Map, Wave Height, Wave Energy, Shikoku Swell 1 Energy, Swell 2 Energy, Windwave Energy, Shikoku Precipitation, Wind, Temperature, Shikoku Cloud Cover.Map overlays available for display: Shikoku Pressure, Wind.Symbols shown on the map: Shikoku Surf Breaks, Tide Forecasts, Cities, Shikoku Ski Resorts, Live Wave Buoys, Live Webcams, Shikoku Wind Now, Temperature Now, Weather Now, Shikoku Swell at breaks, Rating at breaks.

Shikoku Surf Forecast map for predicting the best wave and wind conditions across the region. For surfers, the map shows the most powerful swell tracking across near-shore open water and not the peak waves experienced by boats out at sea. Move your mouse over the ocean swell symbols or the surf breaks on the coastline to see a more detailed surf forecast including wave period and wind conditions. The forecast updates every 6 hours and most live weather reports update every hour. You can animate the Shikoku Surf map or show live wind and wave conditions as reported from wavebuoys and local weather stations. Surf breaks shown along the Shikoku coastline are also listed below.

Shikoku Photos

Shikoku Wavefinder

	Thursday 27			Friday 28			Saturday 29			Sunday 30			Monday 31			Tuesday 1			Wednesday 2
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Best forecast wave conditions in Shikoku	Ikumi Beach Shikoku	Osaki Point Shikoku	Niyodo Rivermouth Shikoku	Gomoda Shikoku	Osaki Point Shikoku	Osaki Point Shikoku	Dead Man's Land Shikoku	Ikumi Beach Shikoku	Dead Man's Land Shikoku	Hashikui Bay Shikoku	Hashikui Bay Shikoku	Dead Man's Land Shikoku	Asakawa Shikoku	Hashikui Bay Shikoku	Niyodo Rivermouth Shikoku	Asakawa Shikoku	Asakawa Shikoku	Asakawa Shikoku	Asakawa Shikoku	Asakawa Shikoku	Asakawa Shikoku
Rating (10 max)	3	3	3	2	2	2	1	1	1	1	1	1	2	2	2	0	0	0	0	0	0
Wave Height (m) Direction Period (s)	SSW 10	SSW 9	S 9	SSW 8	S 7	S 8	SSW 7	SSW 8	SSW 7	SSW 7	SSW 7	S 12	SSE 11	S 11	SSE 10	SSE 10	SSE 10	SSE 10	SSE 10	SSE 10	SSE 10
kJ	371	261	275	155	117	115	71	107	73	76	89	71	286	326	416	472	702	826	803	1079	660
Wind (km/h)	SW	SW	WSW	WNW	WSW	WSW	SSW	SW	WSW	S	S	WSW	SE	SSE	NE	ESE	SE	SE	SE	SE	SSE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	off	glassy	glassy	off	off	cross-off	cross-off	cross-off	glassy	cross-off	cross-off	glassy	cross-off	glassy	cross-on	cross-on	on	on	on	on
High Tide			6:12PM1.76m	5:58AM1.98m		6:30PM1.78m	6:12AM1.83m		6:52PM1.81m	7:00AM2.02m		7:14PM1.82m	7:26AM1.80m		7:43PM1.84m	8:07AM1.73m		8:03PM1.78m	8:53AM1.61m		8:30PM1.72m
Low Tide	11:46AM0.31m		11:53PM0.72m		12:05PM0.20m	00:19AM0.60m		12:52PM0.37m	00:48AM0.49m		1:12PM0.47m	1:19AM0.40m		1:41PM0.60m	1:56AM0.37m		2:01PM0.58m	2:31AM0.33m		2:32PM0.75m


mm	—	—	6	1	2	—	—	—	1	1	1	—	—	—	6	11	9	24	12	29	37
Max °C	31	30	27	28	29	27	31	30	27	30	29	27	30	29	27	27	27	27	27	27	27
Min °C	29	28	26	27	28	26	29	28	26	29	28	25	28	28	26	27	27	26	26	27	27
Chill °C	31	30	27	28	29	27	31	30	27	30	29	27	30	29	27	27	27	27	27	27	27
	5:31	—	—	5:31	—	—	5:33	—	—	5:33	—	—	5:35	—	—	5:35	—	—	5:35	—	—
	—	6:36	—	—	6:34	—	—	6:32	—	—	6:30	—	—	6:30	—	—	6:29	—	—	6:28	—
Swell 1 Height (m) Direction Period (s)	SSE 9	SSE 10	S 9	SSW 8	S 7	S 8	SSW 7	SSE 9	SE 11	S 7	SE 10	S 7	SSE 11	S 11	SSE 10	SSE 10	SSE 10	SSE 10	SSE 10	SSE 10	SSE 10
kJ	202	214	275	90	117	115	71	16	19	39	16	38	286	326	416	472	702	826	803	778	660
Swell 2 Height (m) Direction Period (s)	SSW 10	E 12	SSW 8	SSE 8	E 13	E 12	SE 9	ESE 9	ESE 9	SE 10	SW 11	S 12	SW 8	SW 9	SSW 8	E 13	E 12	ESE 12	ESE 11	ESE 10	SSW 12
kJ	154	43	47	58	83	74	13	8	8	16	4	71	3	21	7	13	26	44	40	37	162
Wind waves Height (m) Direction Period (s)	SSW 10	SSW 9	SSW 8	SSW 8	—	—	SW 4	SSW 8	SSW 7	SSW 7	SSW 7	SW 4	—	—	—	—	—	—	—	SSE 10	—
kJ	371	261	147	155	—	—	16	107	73	76	89	6	—	—	—	—	—	—	—	1079	—
Sea °C	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29
Diff °C	+1.3	+1.4	+1.8	+1.2	+1.4	+1.4	+1.2	+1.3	+1.2	+1.3	+1.3	+1.2	+1.2	+1.3	+1.8	+1.2	+1.2	+1.2	+1.2	+1.2	+1.2