Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 am 29 Oct 2026 (local time)

Forecast update in hr min

Today's Katahama sea temperature is

24.1°C

Katahama 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 Katahama today (29 Oct):

Morning surf: Morning surf (29 Oct, local time) - 4.5ft (1.3m), 5s period with E swell.
Afternoon surf: Afternoon surf (29 Oct, local time) - 1.5ft (0.4m), 14s period with SE swell.
Evening surf: Evening surf (29 Oct, local time) - 1.5ft (0.5m), 13s period with SE swell.

The current surf forecast for Katahama at 5AM is: 0.4m 11s primary swell from a East-southeast direction and 1.0m 5s secondary swell from a East direction (forecast issued at 02:00am October 29). An open ocean swell of 0.2m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & Date	Wave Height	Wave Period
Morning (29 Oct)	4.5ft (1.3m)	5s
Afternoon (29 Oct)	1.5ft (0.4m)	14s
Evening (29 Oct)	1.5ft (0.5m)	13s

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

	Short Range Forecast Mostly dry. Warm (max 21°C on Fri afternoon, min 15°C on Sat night). Winds increasing (calm on Fri morning, strong winds from the WNW by Sat afternoon).
	Thursday 29								Friday 30								Saturday 31
	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	0	1	1	2	2	2	2	1	1	2	1	1	1	0	1	0	1	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	E 4	E 5	E 5	E 5	E 5	SE 14	SE 13	SE 13	ESE 8	ESE 8	ESE 8	ESE 9	ESE 9	SE 9	SE 9	SE 9	SE 9	SE 9	SE 9	SE 9	SE 16	SE 16	SE 15	SE 15
Wave Graph
kJ	46	44	44	95	65	47	45	87	96	165	273	377	411	380	380	363	326	326	307	307	803	318	643	733
Wind (km/h)	E	NE	NE	NE	NE	ENE	ENE	NNE	NNW	N	WSW	SSE	WSW	WSW	WSW	W	WSW	W	W	W	W	WNW	WNW	WNW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-on	cross	cross	cross	cross	cross	cross-on	cross-off	cross-off	cross-off	glassy	glassy	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off
High Tide				7:31AM1.55m				6:28PM1.70m				8:20AM1.50m				7:04PM1.61m					9:22AM1.44m			7:47PM1.49m
Low Tide		00:50AM0.22m				12:45PM0.99m				1:31AM0.26m				1:29PM1.06m				2:19AM0.35m				2:31PM1.12m


	—	—	6:03	—	—	—	—	—	—	—	6:03	—	—	—	—	—	—	—	6:05	—	—	—	—	—
	—	—	—	—	—	4:57	—	—	—	—	—	—	—	4:55	—	—	—	—	—	—	—	4:54	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	17	16	15	16	17	18	18	18	18	18	18	18	20	21	19	18	18	18	17	19	21	21	18	17
Feels °C	13	13	12	13	14	17	18	18	18	18	18	17	17	17	16	16	16	15	11	12	13	13	10	11
Swell 1 Height (m) Direction Period (s)	W 6	W 6	ESE 11	SE 11	SE 10	ESE 10	ESE 10	E 6	ESE 8	ESE 8	ESE 8	ESE 9	ESE 9	SE 9	SE 9	SE 9	SE 9	SE 9	SE 9	SE 9	SE 16	SE 10	SE 15	SE 15
kJ	41	16	44	29	27	41	39	31	96	165	273	377	411	380	380	363	326	326	307	307	803	225	640	733
Swell 2 Height (m) Direction Period (s)	SW 7	ESE 11	W 4	SE 15	SE 14	SE 14	SE 13	SE 13	ESE 13	ESE 12	SE 12	SE 13	SE 13	SE 12	SE 15	SE 15	SE 12	SE 14	SE 18	SE 18	SE 20	SE 16	SSE 19	SSE 18
kJ	2	44	1	33	33	46	45	87	65	60	40	42	41	39	33	34	40	65	161	150	306	314	643	572
Swell 3 Height (m) Direction Period (s)	S 7	S 7	ESE 15	—	SW 7	SW 6	SE 11	SE 8	—	—	—	SE 17	SE 16	SE 16	ESE 12	ESE 12	SE 16	SE 19	SE 14	SE 21	SE 16	SE 20	—	ESE 10
kJ	1	1	21	—	2	2	5	10	—	—	—	11	10	11	14	14	39	96	68	154	91	318	—	111
Wind waves Height (m) Direction Period (s)	E 4	E 5	E 5	E 5	E 5	E 5	E 6	—	—	—	—	—	—	W 3	WSW 3	WSW 3	WSW 3	W 3	W 4	W 5	W 6	W 6	W 6	W 6
kJ	46	44	43	95	65	47	39	—	—	—	—	—	—	2	6	6	3	11	55	115	178	178	212	261
Nearest Offshore or Glassy	Kamogawa Chiba	Mera Chiba	Omaezaki Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Susuki Shizuoka	Susuki Shizuoka	Suruga Bay Shizuoka	Susuki Shizuoka	Susuki Shizuoka	Sakawa River Kanagawa	Usami Shizuoka	Usami Shizuoka	Usami Shizuoka	Sakawa River Kanagawa	Shimoda Yamatoken (Tatado Hama) Shizuoka
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	1	2	2	2	1	2	3	4	3
Distance (km)	178	150	13	13	13	13	13	13	2	2	2	2	2	6	6	2	6	6	103	85	85	85	103	66
Best forecast wave conditions in Shizuoka			Omaezaki	Akabane Long Beach	Omaezaki	Omaezaki	Omaezaki	Shimoda Yamatoken (Tatado Hama)	Shimoda Yamatoken (Tatado Hama)	Shimoda Yamatoken (Tatado Hama)	Akabane Long Beach	Akabane Long Beach	Akabane Long Beach	Akabane Long Beach	Akabane Long Beach	Akabane Long Beach	Akabane Long Beach	Susuki		Usami	Usami	Usami		Shimoda Yamatoken (Tatado Hama)
Rating (10 max)			1	1	1	1	1	1	1	2	2	2	2	2	2	2	2	2		1	2	3		3
Best forecast wave conditions in Japan	Matsube Bay Chiba	Katagai Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Katagai Chiba	Katagai Chiba	Katagai Chiba	Katagai Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kaiser's (Hachijojima Island) Izu Islands	Kaiser's (Hachijojima Island) Izu Islands	Kaiser's (Hachijojima Island) Izu Islands	Niyodo Rivermouth Shikoku	Big Ben Chiba	Matsube Bay Chiba	Niyodo Rivermouth Shikoku	Mera Chiba	Niyodo Rivermouth Shikoku	Mera Chiba
Rating (10 max)	2	1	1	1	1	1	2	2	3	4	4	3	2	2	3	4	4	3	4	4	4	5	4	5
Header Global	Dunedin - Bobs Beach New Zealand	Dunedin - Bobs Beach New Zealand	Tahai Chile	Tahai Chile	Achadas Da Cruz Portugal	Blackfellows Australia	Ahijedero Mexico	Trial Harbour Australia	Trial Harbour Australia	Shipstern Bluff Australia	Easter Reef Australia	Easter Reef Australia	Tahai Chile	Lebu Chile	Buchupureo Chile	Nine Mile New Zealand	Dunedin - Bobs Beach New Zealand	Dunedin - Cob Cottage New Zealand	Papatowai New Zealand	Lebu Chile	Papatowai New Zealand	Shipwreck Bay-Supertubes New Zealand	Afife Portugal	Weld Road New Zealand
Rating (10 max)	5	6	6	6	4	5	4	7	7	9	5	5	5	5	5	6	7	7	6	5	5	5	4	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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Katahama 48 hour detailed Surf Forecast

How big are the waves at Katahama today (29 Oct):

Short Range Forecast

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