Choshi 48 hour detailed Surf Forecast

Lat Long: 35.71° N 140.80° E

Issued: 2 am 20 Oct 2026 (local time)

Forecast update in hr min

Today's Choshi sea temperature is

23.4°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 (20 Oct):

Morning surf: Morning surf (20 Oct, local time) - 1.5ft (0.4m), 14s period with SE swell.
Afternoon surf: Afternoon surf (20 Oct, local time) - 5ft (1.6m), 6s period with SSW swell.
Evening surf: Evening surf (20 Oct, local time) - 2ft (0.6m), 12s period with SE swell.

The current surf forecast for Choshi at 8AM is: 0.4m 14s primary swell from a Southeast direction and 0.3m 10s secondary swell from a East-southeast direction, 0.8m 6s secondary swell from a South-southeast direction (forecast issued at 02:00am October 20). The wind direction is predicted to be cross-shore.

Time (JST) & Date	Wave Height	Wave Period
Morning (20 Oct)	1.5ft (0.4m)	14s
Afternoon (20 Oct)	5ft (1.6m)	6s
Evening (20 Oct)	2ft (0.6m)	12s

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

	Short Range Forecast Light rain (total 8mm), mostly falling on Tue afternoon. Warm (max 27°C on Tue afternoon, min 15°C on Thu morning). Winds increasing (light winds from the W on Tue afternoon, near gales from the SW by Wed afternoon).
	Tuesday 20								Wednesday 21								Thursday 22
	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)	0	0	0	0	0	0	2	2	0	0	0	0	0	0	0	0	0	3	1	1	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSE 6	SSE 6	SSE 6	SE 14	S 6	SSW 6	SE 13	SE 12	SE 12	SE 12	SE 12	SSE 14	S 6	S 7	S 8	S 16	SSE 15	SSE 15	SSE 15	SSE 14	SSE 14	SSE 14	SSE 13	SSE 13
Wave Graph
kJ	54	56	45	53	74	182	138	122	203	197	161	140	233	411	538	2246	270	949	822	366	289	265	253	178
Wind (km/h)	SW	SW	SW	SW	SSW	SW	W	WSW	SW	SW	SW	SSW	SSW	SSW	SW	SW	SW	WSW	NNE	NE	NE	NE	NE	NE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross	cross	cross	cross	cross	cross	cross-off	cross-off	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross-off	cross-off	cross-off	cross	cross	cross	cross
High Tide						1:32PM1.22m			9:55PM1.13m					1:49PM1.27m				00:17AM1.16m				2:05PM1.31m
Low Tide			4:42AM0.59m					6:41PM1.09m				6:07AM0.59m				7:24PM0.95m				7:07AM0.59m				7:56PM0.79m


	—	5:46	—	—	—	—	—	—	—	5:47	—	—	—	—	—	—	—	5:48	—	—	—	—	—	—
	—	—	—	—	—	4:55	—	—	—	—	—	—	—	4:53	—	—	—	—	—	—	—	4:52	—	—
mm	—	—	—	—	1	2	3	1	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	23	23	22	24	26	27	24	24	24	24	24	25	26	26	26	25	25	25	18	16	15	17	17	16
Feels °C	22	23	22	24	23	26	27	27	24	24	22	21	21	20	20	20	22	25	11	10	9	11	11	9
Swell 1 Height (m) Direction Period (s)	ESE 9	ESE 8	ESE 8	SE 14	SE 14	S 6	SSE 6	SSE 6	SE 12	SE 12	SE 12	SE 11	SE 11	NE 5	S 16	S 16	SSE 15	SSE 15	SSE 15	SSE 14	SSE 14	SSE 14	SSE 13	SSE 13
kJ	17	28	13	53	67	78	51	30	203	197	161	101	71	1	264	516	270	949	822	366	289	265	253	178
Swell 2 Height (m) Direction Period (s)	SSE 16	SE 16	SE 10	ESE 10	ESE 10	SE 13	SE 13	SE 12	NE 4	S 6	SSE 15	SSE 14	NE 4	—	—	E 15	SSE 12	S 8	SSE 10	SSE 8	SSE 8	SE 9	SE 8	SE 10
kJ	25	39	27	19	37	85	138	122	12	27	87	140	1	—	—	4	136	30	365	103	45	42	35	58
Swell 3 Height (m) Direction Period (s)	SE 8	E 11	SE 15	ESE 8	E 11	ESE 9	ESE 9	ESE 9	S 6	NE 4	NE 4	NNE 4	E 10	—	—	—	SE 9	—	S 14	SSW 8	ESE 9	SSE 7	SSE 7	—
kJ	2	2	35	13	2	30	26	29	27	6	4	2	2	—	—	—	29	—	593	88	35	18	17	—
Wind waves Height (m) Direction Period (s)	SSE 6	SSE 6	SSE 6	SSE 6	S 6	SSW 6	NE 4	NE 4	S 6	SSW 6	S 6	S 6	S 6	S 7	S 8	S 16	S 8	SSW 8	NE 4	NE 5	NE 6	NE 5	NE 5	NE 6
kJ	54	56	45	48	74	182	21	24	71	62	47	102	233	411	538	2246	223	432	14	76	97	79	89	107
Nearest Offshore or Glassy	Hanamizu River Kanagawa	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Tsujido Beach Kanagawa	Suruga Bay Shizuoka	Hashikui Bay Shikoku	Akabane Long Beach Shizuoka	Choshi Chiba	Choshi Chiba	Chigasaki Jetty Kanagawa	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Hashikui Bay Shikoku	Hashikui Bay Shikoku	Hashikui Bay Shikoku	Gomoda Shikoku	Nunoshima Shikoku	Tainohama Shikoku	Uraga Point Kanagawa	Onjuku Chiba	Uchiboso Chiba	Suruga Bay Shizuoka	Omaezaki Shizuoka	Kaiser's (Hachijojima Island) Izu Islands	Akabane Long Beach Shizuoka
Rating (10 max)	1	1	1	1	3	3	2	2	2	3	3	4	4	4	4	5	5	4	4	3	4	4	4	4
Distance (km)	147	55	132	257	613	350	0	0	135	257	257	613	613	613	591	609	610	112	71	117	257	266	307	350
Best forecast wave conditions in Chiba		Tsurigasaki Surfing Beach (Tokyo 2020)					Choshi	Choshi											Kamogawa	Mera
Rating (10 max)		1					2	2											4	4
Best forecast wave conditions in Japan	Takegashima Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Takegashima Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kaifu Rivermouth Shikoku	Takegashima Shikoku	Niyodo Rivermouth Shikoku	Takegashima Shikoku	Takegashima Shikoku	Takegashima Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Udo Shrine Kyu Shu	Nagata Kyu Shu	Kaiser's (Hachijojima Island) Izu Islands	Mera Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku
Rating (10 max)	2	3	3	3	3	4	4	4	4	4	4	4	4	4	5	5	5	5	4	4	4	5	4	5
Header Global	Thurso East United Kingdom	Thurso East United Kingdom	Alnes Lighthouse Norway	Alnes Lighthouse Norway	Alnes Lighthouse Norway	Alnes Lighthouse Norway	Moning Philippines	Cyclops Australia	Cyclops Australia	Cyclops Australia	Cyclops Australia	Cyclops Australia	Baler - Lindy's Point Philippines	Malaking Gasang (Baler) Philippines	Lucky Point Philippines	Lucky Point Philippines	Lucky Point Philippines	Haga-Haga South Africa	Trial Harbour Australia	Easter Reef Australia	Barbel Point South Africa	Barbel Point South Africa	Trial Harbour Australia	Trial Harbour Australia
Rating (10 max)	6	7	7	6	5	5	5	5	6	6	6	7	7	7	9	9	8	9	8	6	5	5	6	6

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 (20 Oct):

Short Range Forecast

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