Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 8 pm 27 Oct 2026 (local time)

Forecast update in hr min

Today's Katahama sea temperature is

24.2°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 (28 Oct):

Morning surf: Morning surf (28 Oct, local time) - 1.5ft (0.4m), 10s period with ESE swell.
Afternoon surf: Afternoon surf (28 Oct, local time) - 1.5ft (0.4m), 10s period with ESE swell.
Evening surf: Evening surf (28 Oct, local time) - 1.5ft (0.4m), 10s period with ESE swell.

The current surf forecast for Katahama at 3AM is: 0.4m 10s primary swell from a East-southeast direction and 0.2m 9s secondary swell from a South-southeast direction (forecast issued at 08:00pm October 27). An open ocean swell of 2.5m 7s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (28 Oct)	1.5ft (0.4m)	10s
Afternoon (28 Oct)	1.5ft (0.4m)	10s
Evening (28 Oct)	1.5ft (0.4m)	10s

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

	Short Range Forecast Mostly dry. Warm (max 20°C on Tue night, min 14°C on Tue night). Winds decreasing (fresh winds from the WNW on Tue night, calm by Thu night).
	Tue 27		Wednesday 28								Thursday 29
	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	0	0	0	0	0	0	0	0	0	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	ESE 9	E 9	E 9	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	E 10	ESE 10	E 5	ENE 5	ENE 5	E 5	E 5	E 6	SE 13	ESE 13
Wave Graph
kJ	47	39	43	31	32	33	33	39	49	41	52	78	61	45	62	60	45	118
Wind (km/h)	WNW	WNW	WNW	WNW	WNW	NW	NNW	NNE	NNE	E	NE	NE	NE	NE	ENE	SE	SSE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	off	cross-off	cross-off	off	off	off	off	cross-off	cross-off	cross-on	cross	cross	cross	cross	cross	on	on	glassy
High Tide	5:26PM1.76m					6:48AM1.60m			5:55PM1.75m					7:31AM1.55m				6:28PM1.70m
Low Tide				00:14AM0.22m				12:10PM0.92m				00:50AM0.22m				12:45PM0.99m


	—	—	—	—	6:03	—	—	—	—	—	—	—	6:03	—	—	—	—	—
	—	—	—	—	—	—	—	4:58	—	—	—	—	—	—	—	4:57	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	21	20	18	16	14	16	19	19	19	18	17	16	15	15	17	18	18	18
Feels °C	17	14	12	10	9	11	17	18	18	14	13	12	11	11	15	17	18	19
Swell 1 Height (m) Direction Period (s)	SSW 8	SSW 8	E 9	ESE 10	ESE 10	SW 8	ESE 10	W 6	W 6	W 6	W 6	W 6	ESE 11	ESE 11	SE 10	ESE 10	SE 13	ESE 6
kJ	193	175	43	31	32	31	33	120	96	64	31	15	44	44	27	20	45	33
Swell 2 Height (m) Direction Period (s)	ESE 9	E 9	—	SSE 9	—	ESE 10	E 6	ESE 10	E 10	ESE 10	ESE 10	ESE 11	W 5	ESE 15	SE 14	SE 14	ESE 10	ESE 13
kJ	47	39	—	7	—	33	11	39	49	41	43	44	5	21	33	46	20	118
Swell 3 Height (m) Direction Period (s)	E 7	—	—	—	—	S 8	SW 8	E 6	NNW 5	S 7	S 7	SE 16	ESE 15	W 4	—	SW 6	SE 11	SE 8
kJ	17	—	—	—	—	1	16	11	3	1	1	10	21	1	—	2	5	9
Wind waves Height (m) Direction Period (s)	W 6	W 6	W 7	W 7	W 7	WNW 6	WNW 6	WNW 7	WNW 6	E 4	E 5	ENE 5	ENE 5	E 5	E 5	E 6	ESE 6	—
kJ	154	377	595	709	440	205	130	350	255	7	52	78	61	45	62	60	42	—
Nearest Offshore or Glassy	Suruga Bay Shizuoka	Sakawa River Kanagawa	Kamogawa Chiba	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Keta Reef Oshima Izu Islands	Susuki Shizuoka	Susuki Shizuoka	Susuki Shizuoka	Onjuku Chiba	Amatu Chiba	Omaezaki Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Sakawa River Kanagawa	Mera Chiba	Sakawa River Kanagawa	Susuki Shizuoka
Rating (10 max)	1	1	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	2	103	178	2	2	104	6	6	6	202	186	13	13	13	103	150	103	6
Best forecast wave conditions in Shizuoka	Suruga Bay			Suruga Bay	Suruga Bay		Susuki	Susuki	Susuki			Omaezaki	Akabane Long Beach	Akabane Long Beach				Shimoda Yamatoken (Tatado Hama)
Rating (10 max)	1			1	1		1	1	1			1	1	1				1
Best forecast wave conditions in Japan	Mera Chiba	Niyodo Rivermouth Shikoku	Matsube Bay Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Takegashima Shikoku	Kuminatu Chiba	Buma Okinawa	Katagai Chiba	Omaezaki Shizuoka	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Takegashima Shikoku	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Katagai Chiba	Katagai Chiba
Rating (10 max)	2	1	2	1	1	1	1	1	1	2	1	1	1	1	1	2	2	2
Header Global	Papa Tangaroa Chile	Viri Inga O Tuki Chile	Achadas Da Cruz Portugal	Backdoor United States	Backdoor United States	Viri Inga O Tuki Chile	Cavalos de Fao Portugal	The Bowl United Kingdom	Anael France	Dunedin - Bobs Beach New Zealand	Dunedin - Bobs Beach New Zealand	Bancoora Australia	Dunedin - Cob Cottage New Zealand	Afife Portugal	Afife Portugal	Anael France	Tahai Chile	Luna Park Australia
Rating (10 max)	5	5	4	4	4	7	5	7	5	6	5	5	5	4	4	4	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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Katahama 48 hour detailed Surf Forecast

How big are the waves at Katahama today (28 Oct):

Short Range Forecast

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