Choshi 48 hour detailed Surf Forecast

Lat Long: 35.71° N 140.80° E

Issued: 2 pm 21 Oct 2026 (local time)

Forecast update in hr min

Today's Choshi sea temperature is

23.7°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 (21 Oct):

Afternoon surf: Afternoon surf (21 Oct, local time) - 6.5ft (2.0m), 7s period with S swell.
Evening surf: Evening surf (21 Oct, local time) - 7ft (2.1m), 8s period with S swell.

The current surf forecast for Choshi at 9PM is: 1.0m 16s primary swell from a South direction and 0.3m 12s secondary swell from a South-southeast direction, 2.1m 8s secondary swell from a South direction (forecast issued at 02:00pm October 21). The wind direction is predicted to be cross-shore.

Time (JST) & Date	Wave Height	Wave Period
Morning (21 Oct)	-	-
Afternoon (21 Oct)	6.5ft (2.0m)	7s
Evening (21 Oct)	7ft (2.1m)	8s

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

	Short Range Forecast Some drizzle, heaviest during Sat morning. Warm (max 26°C on Wed afternoon, min 15°C on Thu night). Winds decreasing (near gales from the SW on Wed afternoon, light winds from the SE by Fri night).
	Wed 21				Thursday 22								Friday 23
	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)	0	0	0	0	0	4	1	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	S 7	S 7	S 16	S 8	SSE 15	S 15	SSE 15	SSE 14	SSE 14	SSE 14	SSE 13	SSE 13	SSE 13	SSE 12	SSE 13	SSE 12	SSE 12	S 12	S 13	SSE 14
Wave Graph
kJ	280	382	515	516	270	619	892	366	293	352	253	195	215	160	165	162	160	112	115	70
Wind (km/h)	SSW	SSW	SW	SW	SW	W	NE	NNE	NE	NE	NE	NE	NE	NE	NE	NE	E	ESE	ESE	SE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross	cross	cross	cross	cross	cross-off	cross	cross-off	cross-off	cross-off	cross	cross	cross-off	cross	cross	cross	cross-on	cross-on	on	on
High Tide		1:49PM1.27m				00:17AM1.16m				2:05PM1.31m				1:33AM1.25m				2:22PM1.36m
Low Tide				7:24PM0.95m				7:07AM0.59m				7:56PM0.79m				7:53AM0.60m				8:28PM0.62m


	—	—	—	—	—	5:48	—	—	—	—	—	—	—	5:48	—	—	—	—	—	—
	—	4:53	—	—	—	—	—	—	—	4:52	—	—	—	—	—	—	—	4:52	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	26	26	26	25	25	24	20	17	17	16	17	16	15	16	16	17	17	17	18	20
Feels °C	21	20	20	20	22	25	17	10	11	9	11	9	8	10	11	13	14	14	16	19
Swell 1 Height (m) Direction Period (s)	—	S 18	S 16	S 16	SE 9	SSE 8	SSE 15	SSE 14	SSE 14	SSE 14	SSE 13	SSE 13	SSE 13	SSE 12	SSE 13	SSE 12	SSE 12	ENE 5	E 5	E 5
kJ	—	160	515	516	186	211	892	366	293	352	253	195	215	160	165	162	160	28	19	12
Swell 2 Height (m) Direction Period (s)	SSE 18	NE 10	—	SSE 12	SSE 15	SSE 15	SSE 10	SSE 8	SSE 8	ESE 10	ESE 10	SE 10	ESE 10	SE 10	SE 10	ESE 10	NE 6	S 12	S 13	ESE 10
kJ	104	4	—	29	270	505	352	84	45	36	37	48	37	45	46	37	21	112	115	38
Swell 3 Height (m) Direction Period (s)	NE 10	—	—	—	SSE 13	S 15	S 14	SSW 8	ESE 9	SW 7	SSE 7	S 16	SW 7	—	—	SE 10	SE 10	ESE 10	ESE 10	SSE 14
kJ	4	—	—	—	90	619	602	91	35	13	17	21	2	—	—	46	24	38	38	70
Wind waves Height (m) Direction Period (s)	S 7	S 7	S 7	S 8	SSW 8	SSW 8	NE 4	NE 5	NE 5	NE 5	NE 6	NE 6	NE 6	NE 6	NE 5	ENE 5	E 5	E 5	—	ESE 5
kJ	280	382	465	504	159	400	28	83	71	84	141	161	156	92	55	44	19	20	—	8
Nearest Offshore or Glassy	Takegashima Shikoku	Hashikui Bay Shikoku	Nunoshima Shikoku	Tainohama Shikoku	Hanamizu River Kanagawa	Choshi Chiba	Katagai Chiba	Uchiboso Chiba	Uchiboso Chiba	Suruga Bay Shizuoka	Yasuda Rivermouth Shikoku	Akabane Long Beach Shizuoka	Uchiboso Chiba	Nagahama Kanagawa	Uchiboso Chiba	Uchiboso Chiba	Hayama Cliffs Kanagawa	Hayama Cliffs Kanagawa	Shida Chiba	Shida Chiba
Rating (10 max)	4	4	5	5	3	4	4	3	3	4	4	4	2	2	2	2	2	2	2	3
Distance (km)	640	613	609	610	147	0	37	117	117	257	674	350	117	122	117	117	121	121	56	56
Best forecast wave conditions in Chiba						Choshi	Kamogawa	Uchiboso	Uchiboso				Uchiboso		Uchiboso	Mera			Uchiboso	Mera
Rating (10 max)						4	4	3	3				2		2	3			2	3
Best forecast wave conditions in Japan	Takegashima Shikoku	Takegashima Shikoku	Nunoshima Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kaifu Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku
Rating (10 max)	4	5	5	5	5	4	5	4	4	4	4	4	4	4	4	4	4	4	5	5
Header Global	Virac Harbour Philippines	Virac Harbour Philippines	Super Tubes South Africa	Lucky Point Philippines	Lucky Point Philippines	Haga-Haga South Africa	Riet River South Africa	Haga-Haga South Africa	Baler - Lindy's Point Philippines	Easter Reef Australia	Trial Harbour Australia	Keusik Luhur Indonesia	Batu Hiu Indonesia	Benkunqut Indonesia	Bali Village Indonesia	Luna Park Australia	Boneyards South Africa	Papatowai New Zealand	Cavalos de Fao Portugal	Benkunqut Indonesia
Rating (10 max)	6	6	6	9	9	9	8	7	6	5	6	7	5	6	6	6	5	8	8	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 (21 Oct):

Short Range Forecast

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