Choshi 48 hour detailed Surf Forecast

Lat Long: 35.71° N 140.80° E

Issued: 2 am 10 Oct 2026 (local time)

Forecast update in hr min

Today's Choshi sea temperature is

22.3°C

Choshi 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 Choshi today (10 Oct):

Morning surf: Morning surf (10 Oct, local time) - 5ft (1.6m), 13s period with ESE swell.
Afternoon surf: Afternoon surf (10 Oct, local time) - 6ft (1.8m), 12s period with ESE swell.
Evening surf: Evening surf (10 Oct, local time) - 6.5ft (2.0m), 11s period with ESE swell.

The current surf forecast for Choshi at 5AM is: 1.6m 13s primary swell from a East-southeast direction and 1.0m 7s secondary swell from a East direction (forecast issued at 02:00am October 10). An open ocean swell of 0.3m 9s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & Date	Wave Height	Wave Period
Morning (10 Oct)	5ft (1.6m)	13s
Afternoon (10 Oct)	6ft (1.8m)	12s
Evening (10 Oct)	6.5ft (2.0m)	11s

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

	Short Range Forecast Mostly dry. Warm (max 21°C on Sat morning, min 19°C on Sat night). Mainly fresh winds.
	Saturday 10								Sunday 11								Monday 12
	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)	2	1	2	2	2	2	1	2	2	2	3	1	2	3	3	3	3	2	2	2	1	2	1	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	E 14	E 14	ESE 13	ESE 13	ESE 12	ESE 12	ESE 12	ESE 11	ESE 11	ESE 11	ESE 11	E 11	E 11	E 11	E 10	E 10	E 10	E 10	E 10	ENE 10	SE 14	SE 14	ENE 9	ENE 9
Wave Graph
kJ	951	947	958	929	905	960	913	933	933	894	813	953	924	890	753	650	575	625	904	614	485	532	573	573
Wind (km/h)	NE	ENE	NE	NE	NNE	NNE	NE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross	cross	cross	cross	cross-off	cross-off	cross	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross	cross-off
High Tide			3:38AM1.43m				3:29PM1.45m				4:22AM1.43m				3:48PM1.50m				5:04AM1.42m				4:08PM1.53m
Low Tide	9:25PM0.50m				9:33AM0.60m				9:57PM0.36m				10:02AM0.68m				10:28PM0.26m				10:30AM0.77m


	—	5:37	—	—	—	—	—	—	—	5:39	—	—	—	—	—	—	—	5:39	—	—	—	—	—	—
	—	—	—	—	—	5:08	—	—	—	—	—	—	—	5:07	—	—	—	—	—	—	—	5:06	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	21	21	20	21	21	21	21	21	20	20	19	20	20	20	20	20	20	20	20	20	20	20	20	20
Feels °C	20	19	18	19	19	19	19	19	18	18	17	18	17	18	18	18	18	17	17	16	16	16	16	16
Swell 1 Height (m) Direction Period (s)	E 14	E 14	ESE 13	ESE 13	ESE 12	ESE 12	ESE 12	ESE 11	ESE 11	ESE 11	ESE 11	E 11	E 11	E 11	E 10	E 10	E 10	E 10	E 10	SE 14	E 9	SE 14	SE 14	SE 14
kJ	951	947	958	929	905	960	913	933	933	894	813	953	924	890	753	650	575	625	627	521	445	532	573	573
Swell 2 Height (m) Direction Period (s)	E 5	NE 10	NE 9	ESE 8	NE 9	NE 13	E 16	NE 12	NE 12	NE 12	E 11	SE 20	SE 20	SE 19	SE 18	SE 17	SE 16	SE 15	SE 15	—	SE 14	ENE 13	ENE 13	ENE 14
kJ	10	14	13	110	3	7	5	6	6	6	396	15	62	183	258	429	508	574	543	—	485	18	18	18
Swell 3 Height (m) Direction Period (s)	S 8	—	—	NNE 9	—	E 16	NE 12	E 16	—	NE 12	NE 12	SE 20	SE 21	ENE 14	ENE 15	—	SE 12	E 16	—	—	—	—	—	—
kJ	6	—	—	8	—	5	6	5	—	6	5	15	150	21	21	—	23	5	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	—	—	E 7	—	—	—	—	—	—	—	NNE 4	NNE 4	—	—	—	—	NNE 4	—	E 10	ENE 10	NNE 5	ENE 9	ENE 9	ENE 9
kJ	—	—	106	—	—	—	—	—	—	—	7	22	—	—	—	—	11	—	904	614	40	521	567	567
Nearest Offshore or Glassy	Mera Chiba	Uchiboso Chiba	Onjuku Chiba	Onjuku Chiba	Katagai Chiba	Uchiboso Chiba	Osaki Kanagawa	Uchiboso Chiba	Uchiboso Chiba	Onjuku Chiba	Onjuku Chiba	Onjuku Chiba	Onjuku Chiba	Onjuku Chiba	Osaki Kanagawa	Kurihama Kanagawa	Nagahama Kanagawa	Uchiboso Chiba	Big Ben Chiba	Onjuku Chiba	Onjuku Chiba	Uchiboso Chiba	Hayama Cliffs Kanagawa	Uchiboso Chiba
Rating (10 max)	4	1	4	4	3	2	1	2	2	4	4	4	5	4	1	2	1	2	4	4	4	3	1	2
Distance (km)	125	117	71	71	37	117	122	117	117	71	71	71	71	71	122	115	122	117	90	71	71	117	121	117
Best forecast wave conditions in Chiba	Mera	Mera	Mera	Mera	Mera	Mera	Mera	Mera	Mera	Mera	Mera	Onjuku	Onjuku	Onjuku		Mera	Mera	Mera	Mera	Mera	Mera	Mera	Mera	Mera
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	5	4		4	4	4	4	4	4	4	4	4
Best forecast wave conditions in Japan	Mera Chiba	Mera Chiba	Omaezaki Shizuoka	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Mera Chiba	Omaezaki Shizuoka	Mera Chiba	Omaezaki Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Niyodo Rivermouth Shikoku	Onjuku Chiba	Niyodo Rivermouth Shikoku	Akabane Long Beach Shizuoka	Mera Chiba	Mera Chiba	Mera Chiba	Mera Chiba	Mera Chiba	Mera Chiba	Niyodo Rivermouth Shikoku	Mera Chiba	Mera Chiba
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	5	4	3	4	4	4	4	4	4	4	4	4
Header Global	Dinner Plates New Zealand	Ahijedero Mexico	Hullets Reef South Africa	Boneyards South Africa	Boneyards South Africa	Ahijedero Mexico	Ahijedero Mexico	Pascuales Mexico	Pascuales Mexico	Pascuales Mexico	Ethel Wreck Australia	Easter Reef Australia	Easter Reef Australia	Luna Park Australia	Alnes Lighthouse Norway	Luna Park Australia	Easter Reef Australia	Rags Left Indonesia	Injidup Carpark Australia	Cow Bombie Australia	Gas Bay Australia	Cow Bombie Australia	Cobblestones Australia	Point Roadnight Australia
Rating (10 max)	5	4	5	5	5	4	5	5	5	5	5	7	8	9	4	9	8	5	5	6	6	5	5	5

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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Choshi 48 hour detailed Surf Forecast

How big are the waves at Choshi today (10 Oct):

Short Range Forecast

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