Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 8 pm 07 Oct 2026 (local time)

Forecast update in hr min

Today's Katahama sea temperature is

24.3°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 (08 Oct):

Morning surf: Morning surf (08 Oct, local time) - 3.5ft (1.1m), 11s period with ESE swell.
Afternoon surf: Afternoon surf (08 Oct, local time) - 3ft (0.9m), 10s period with ESE swell.
Evening surf: Evening surf (08 Oct, local time) - 2.5ft (0.7m), 16s period with ESE swell.

The current surf forecast for Katahama at 12AM is: 1.7m 12s primary swell from a East-southeast direction and 0.2m 20s secondary swell from a East direction, 0.9m 5s secondary swell from a East direction (forecast issued at 08:00pm October 07). The wind direction is predicted to be cross-shore.

Time (JST) & Date	Wave Height	Wave Period
Morning (08 Oct)	3.5ft (1.1m)	11s
Afternoon (08 Oct)	3ft (0.9m)	10s
Evening (08 Oct)	2.5ft (0.7m)	16s

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

	Short Range Forecast Light rain (total 2mm), mostly falling on Wed night. Warm (max 22°C on Wed night, min 18°C on Fri night). Wind will be generally light.
	Wed 7		Thursday 8								Friday 9
	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	2	2	1	3	0	1	1	1	2	2	3	3	2	2	2	3	4
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	ESE 13	ESE 12	ESE 12	ESE 12	ESE 11	ESE 11	ESE 11	ESE 10	E 17	ESE 16	ESE 17	ESE 16	ESE 16	ESE 16	ESE 17	ESE 16	ESE 16	ESE 16
Wave Graph
kJ	1156	920	861	560	376	308	249	187	205	283	367	463	437	694	928	823	929	906
Wind (km/h)	ESE	E	NE	NE	NE	NE	ENE	ESE	ENE	ENE	NE	NNE	NNE	ENE	E	SE	ESE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	on	cross-on	cross	cross	cross-off	cross	cross	on	cross	cross	cross	cross-off	cross-off	cross	cross-on	on	on	cross-off
High Tide	3:45PM1.60m				3:35AM1.49m				4:07PM1.64m				4:14AM1.57m				4:27PM1.68m
Low Tide			9:59PM0.81m				9:51AM0.61m				10:24PM0.68m				10:23AM0.63m


	—	—	—	5:46	—	—	—	—	—	—	—	5:47	—	—	—	—	—	—
	—	—	—	—	—	—	—	5:22	—	—	—	—	—	—	—	5:21	—	—
mm	—	1	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	23	22	21	21	20	20	22	22	22	22	21	20	19	20	22	22	22	21
Feels °C	21	22	20	19	18	18	20	21	22	22	21	19	18	19	21	21	22	21
Swell 1 Height (m) Direction Period (s)	ESE 13	ESE 12	ESE 12	ESE 12	ESE 11	ESE 11	ESE 11	ESE 10	ESE 10	ESE 10	ESE 17	ESE 16	ESE 16	ESE 16	ESE 17	ESE 16	ESE 16	ESE 16
kJ	1156	920	861	560	376	308	249	187	143	140	367	463	437	694	928	823	929	906
Swell 2 Height (m) Direction Period (s)	W 5	W 5	E 20	E 20	ESE 19	ESE 18	ESE 18	E 18	E 17	ESE 16	ESE 10	ESE 9	ESE 9	ESE 9	SE 12	SE 11	SSE 11	SSE 11
kJ	5	2	30	30	71	63	106	158	205	283	109	100	73	64	21	19	12	12
Swell 3 Height (m) Direction Period (s)	E 21	E 21	—	W 4	W 4	—	—	—	SE 12	SE 12	SE 12	SE 12	ESE 20	SE 12	SE 12	SE 11	—	—
kJ	9	9	—	2	1	—	—	—	6	6	6	6	221	5	22	19	—	—
Wind waves Height (m) Direction Period (s)	E 5	ESE 5	E 5	E 5	E 5	E 6	E 6	E 6	E 6	E 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 9	ESE 9	ESE 8	ESE 8
kJ	55	31	34	34	54	96	108	91	71	71	61	64	71	66	213	172	147	147
Nearest Offshore or Glassy	Usami Shizuoka	Usami Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Suruga Bay Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Usami Shizuoka	Suruga Bay Shizuoka	Sakawa River Kanagawa	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Usami Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka
Rating (10 max)	2	2	3	3	1	2	2	1	1	1	1	1	1	3	4	2	2	2
Distance (km)	85	85	13	13	2	13	13	85	2	103	2	2	2	13	13	85	2	2
Best forecast wave conditions in Shizuoka	Usami	Akabane Long Beach	Akabane Long Beach	Omaezaki	Akabane Long Beach	Akabane Long Beach	Akabane Long Beach	Usami	Usami		Omaezaki	Omaezaki	Omaezaki	Omaezaki	Omaezaki	Usami	Usami	Omaezaki
Rating (10 max)	2	3	3	3	3	2	2	1	1		2	3	3	3	4	2	2	4
Best forecast wave conditions in Japan	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Amatu Chiba	Big Ben Chiba	Mera Chiba	Mera Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kuminatu Chiba	Matsube Bay Chiba	Mera Chiba	Mera Chiba	Mera Chiba	Mera Chiba	Amatu Chiba
Rating (10 max)	4	4	3	4	4	3	3	2	2	2	3	4	4	4	4	4	4	4
Header Global	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	The Hoek South Africa	Heaven South Africa	Batu Hiu Indonesia	Hell South Africa	Benkunqut Indonesia	Benkunqut Indonesia	Benkunqut Indonesia	Keramas Indonesia	Boneyards South Africa	Outside Corner Indonesia	Desert Point (Bangko-Bangko) Indonesia	Dolphin Point South Africa	Dolphin Point South Africa	Dolphin Point South Africa	Hullets Reef South Africa
Rating (10 max)	9	9	8	6	6	5	6	5	5	5	5	5	5	5	5	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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Katahama 48 hour detailed Surf Forecast

How big are the waves at Katahama today (08 Oct):

Short Range Forecast

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