Niyodo Rivermouth 48 hour detailed Surf Forecast

Lat Long: 33.54° N 133.69° E

Issued: 2 am 16 Jul 2026 (local time)

Forecast update in hr min

Today's Niyodo Rivermouth sea temperature is

26.9° C

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

Surf Forecasts:

How big are the waves at Niyodo Rivermouth today (16 Jul):

Morning surf: Morning surf (16 Jul, local time) - 3.5ft (1.0m), 7s period with SSW swell.
Afternoon surf: Afternoon surf (16 Jul, local time) - 3ft (0.9m), 7s period with SSW swell.
Evening surf: Evening surf (16 Jul, local time) - 2.5ft (0.8m), 7s period with SSW swell.

The current surf forecast for Niyodo Rivermouth at 11AM is: 1.0m 7s primary swell from a South-southwest direction and 0.4m 10s secondary swell from a East-southeast direction (forecast issued at 02:00am July 16). The wind direction is predicted to be onshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (16 Jul)	3.5ft (1.0m)	7s
Afternoon (16 Jul)	3ft (0.9m)	7s
Evening (16 Jul)	2.5ft (0.8m)	7s

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

	Short Range Forecast Light rain (total 2mm), mostly falling on Sat night. Warm (max 31°C on Thu morning, min 26°C on Thu night). Wind will be generally light.
	Thursday 16								Friday 17								Saturday 18
	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM
Rating (10 max)	1	1	1	1	0	0	0	1	1	1	1	1	0	0	1	1	1	1	1	1	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSW 7	SSW 8	SSW 8	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 10	E 9	E 10
Wave Graph
kJ	68	142	138	114	104	86	86	68	61	47	47	46	30	25	25	40	41	41	41	39	39	47	38	48
Wind (km/h)	N	N	N	NW	SSE	SE	ESE	NNE	N	N	N	SSE	S	S	SSW	N	NNE	N	ENE	S	SSE	SSE	SE	ESE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	glassy	off	glassy	on	cross-on	cross-on	glassy	off	off	off	glassy	on	on	glassy	glassy	glassy	glassy	glassy	glassy	on	on	cross-on	cross-on
High Tide				6:33AM1.89m				8:05PM1.84m				7:20AM1.86m				8:40PM1.80m				8:08AM1.78m
Low Tide		00:58AM0.86m				1:21PM-0.05m				1:40AM0.79m				2:01PM0.07m				2:22AM0.74m				2:40PM0.24m


	—	5:05	—	—	—	—	—	—	—	5:05	—	—	—	—	—	—	—	5:07	—	—	—	—	—	—
	—	—	—	—	—	—	7:15	—	—	—	—	—	—	—	7:15	—	—	—	—	—	—	—	7:15	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	28	28	28	31	31	30	29	28	27	27	26	30	30	30	29	27	27	27	26	29	29	29	28	27
Feels °C	33	33	33	36	34	34	33	33	30	30	28	33	33	33	34	32	32	31	30	33	32	33	33	32
Swell 1 Height (m) Direction Period (s)	SSW 7	SSW 8	SSW 8	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 10	E 9	E 10
kJ	68	142	138	114	104	86	86	68	61	47	47	46	30	18	25	40	41	41	41	39	39	47	38	48
Swell 2 Height (m) Direction Period (s)	SSW 8	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	E 10	ESE 10	ESE 10	E 10	E 10	E 9	E 9	E 9	SSW 6	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SSW 7	SE 8	SSW 7
kJ	37	18	31	30	30	31	30	31	31	29	29	28	27	25	16	19	19	9	9	9	9	9	18	9
Swell 3 Height (m) Direction Period (s)	ESE 9	SE 11	SE 10	SE 10	SE 10	SE 10	SE 9	SE 10	SE 10	SE 10	SE 10	SE 9	SSW 8	SE 10	SE 10	SE 10	SE 9	SE 9	SE 9	SE 9	SE 9	SE 9	SSW 7	SE 8
kJ	17	18	17	17	16	15	14	15	15	15	14	14	11	15	15	15	14	13	13	13	12	12	9	11
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	E 3	—	E 3
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	—	1
Nearest Offshore or Glassy	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Gomoda Shikoku	Hashikui Bay Shikoku	Yasuda Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Udo Shrine Kyu Shu	Osaki Point Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Udo Shrine Kyu Shu	Uchiumi Kyu Shu	Golfcourse Kyu Shu	Yasuda Rivermouth Shikoku
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	0	0	0	0	103	82	29	0	0	0	0	0	297	51	0	0	0	0	0	0	297	286	279	29
Best forecast wave conditions in Shikoku	Nunoshima	Nunoshima	Nunoshima	Nunoshima	Gomoda	Hashikui Bay	Kaifu Rivermouth	Nunoshima	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth		Osaki Point	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth				Yasuda Rivermouth
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1		1	1	1	1	1	1	1				1
Best forecast wave conditions in Japan	Nunoshima Shikoku	Nunoshima Shikoku	Nunoshima Shikoku	Nunoshima Shikoku	Niijima - Awaii Izu Islands	Niijima - Habushiura Izu Islands	Kaifu Rivermouth Shikoku	Nunoshima Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Ohara Chiba	Shida Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Keta Reef Oshima Izu Islands	Keta Reef Oshima Izu Islands	Keta Reef Oshima Izu Islands	Keta Reef Oshima Izu Islands
Rating (10 max)	1	1	1	1	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Header Global	Shingles New Zealand	Shipstern Bluff Australia	Hell South Africa	Gerickes Point South Africa	Boneyards South Africa	Boneyards South Africa	Dunedin - Cob Cottage New Zealand	Easter Reef Australia	Otago Peninsula - Allans Beach New Zealand	Lebu Chile	Easter Reef Australia	Dunedin - Bobs Beach New Zealand	Easter Reef Australia	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Dunedin - Kuri Bush New Zealand	Dunedin - Cob Cottage New Zealand	Dunedin - Kuri Bush New Zealand	Seconds (White Rock) New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand
Rating (10 max)	5	5	5	5	5	5	7	5	5	6	6	9	6	8	9	8	7	6	6	8	9	9	9	7

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

Latest Updates

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Niyodo Rivermouth 48 hour detailed Surf Forecast

How big are the waves at Niyodo Rivermouth today (16 Jul):

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