Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 am 08 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 7AM is: 1.2m 11s primary swell from a East-southeast direction and 0.3m 19s secondary swell from a East-southeast direction, 0.9m 5s secondary swell from a East direction (forecast issued at 02:00am October 08). 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 Mostly dry. Warm (max 22°C on Thu morning, min 19°C on Fri night). Wind will be generally light.
	Thursday 8								Friday 9								Saturday 10
	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)	3	3	3	0	0	1	1	2	2	3	3	2	3	2	3	4	3	2	3	3	3	2	4	4
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	ESE 12	E 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	ESE 15	ESE 15	ESE 14	ESE 14	ESE 14	ESE 13	ESE 13	ESE 13
Wave Graph
kJ	861	723	438	308	249	187	205	283	367	463	437	694	928	823	917	894	678	811	789	735	1286	1401	1511	1574
Wind (km/h)	NNE	NNE	NE	NE	ENE	ESE	E	NE	NE	NNE	NNE	ENE	ESE	SE	SE	NE	NNE	NE	NNE	NE	E	SSE	SSW	NNW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross-off	cross	cross-on	cross-on	cross-on	cross	cross	cross-off	cross-off	cross	cross-on	on	on	glassy	cross-off	cross	cross-off	cross	cross-on	cross-on	glassy	glassy
High Tide			3:35AM1.49m				4:07PM1.64m				4:14AM1.57m				4:27PM1.68m				4:49AM1.62m				4:47PM1.71m
Low Tide	9:59PM0.81m				9:51AM0.61m				10:24PM0.68m				10:23AM0.63m				10:48PM0.56m				10:50AM0.67m


	—	5:46	—	—	—	—	—	—	—	5:47	—	—	—	—	—	—	—	5:47	—	—	—	—	—	—
	—	—	—	—	—	5:22	—	—	—	—	—	—	—	5:21	—	—	—	—	—	—	—	5:20	—	—
mm	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	21	21	20	21	22	22	22	22	21	20	20	21	22	22	22	22	21	20	19	20	21	22	21	21
Feels °C	21	20	18	19	20	21	22	22	20	19	19	20	21	21	22	23	20	19	18	19	21	21	21	22
Swell 1 Height (m) Direction Period (s)	ESE 12	E 12	ESE 11	ESE 11	ESE 11	ESE 10	ESE 10	ESE 10	ESE 17	ESE 16	ESE 9	ESE 16	ESE 17	ESE 16	ESE 16	ESE 16	ESE 15	ESE 15	ESE 14	ESE 14	ESE 14	ESE 13	ESE 13	ESE 13
kJ	861	723	438	308	249	187	176	140	367	463	203	694	928	823	917	894	678	811	789	735	1286	1401	1511	1574
Swell 2 Height (m) Direction Period (s)	E 20	W 4	ESE 19	ESE 18	ESE 18	E 18	E 17	ESE 16	ESE 10	ESE 6	ESE 16	ESE 9	ESE 9	SE 11	SSE 11	SSE 11	ESE 8	ESE 6	ESE 8	ESE 8	—	—	—	—
kJ	30	2	71	63	106	158	205	283	109	60	437	184	180	19	12	12	22	70	116	147	—	—	—	—
Swell 3 Height (m) Direction Period (s)	—	E 20	W 4	—	—	—	S 12	SE 12	SE 12	ESE 9	ESE 20	SE 12	SE 11	SE 11	—	—	SE 11	ESE 8	—	—	—	—	—	—
kJ	—	30	1	—	—	—	3	6	6	98	221	5	5	19	—	—	5	28	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	—	NNE 3	E 5	E 6	E 6	E 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	—	ESE 9	ESE 8	ESE 8	ESE 6	—	E 6	E 8	—	—	—	—
kJ	—	1	40	78	86	88	82	88	75	107	88	90	—	168	134	157	82	—	85	213	—	—	—	—
Nearest Offshore or Glassy	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Usami Shizuoka	Usami Shizuoka	Usami Shizuoka	Omaezaki Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Usami Shizuoka	Omaezaki Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Usami Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka
Rating (10 max)	1	1	1	2	2	1	1	1	3	1	1	3	4	2	4	2	1	1	1	4	4	2	2	2
Distance (km)	2	2	2	13	13	85	85	85	13	2	2	13	13	85	13	2	2	2	2	13	13	85	2	2
Best forecast wave conditions in Shizuoka	Akabane Long Beach	Omaezaki	Akabane Long Beach	Akabane Long Beach	Akabane Long Beach	Usami	Usami	Usami	Omaezaki	Omaezaki	Omaezaki	Omaezaki	Omaezaki	Usami	Omaezaki	Omaezaki	Akabane Long Beach	Akabane Long Beach	Akabane Long Beach	Omaezaki	Omaezaki	Usami	Usami	Shimoda Yamatoken (Tatado Hama)
Rating (10 max)	3	3	3	2	2	1	1	1	3	3	3	3	4	2	4	4	3	3	3	4	4	2	2	4
Best forecast wave conditions in Japan	Niyodo Rivermouth Shikoku	Amatu Chiba	Amatu Chiba	Mera Chiba	Mera Chiba	Shichirigahama Kanagawa	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kuminatu Chiba	Matsube Bay Chiba	Mera Chiba	Mera Chiba	Mera Chiba	Mera Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Omaezaki Shizuoka	Mera Chiba	Mera Chiba	Mera Chiba	Niyodo Rivermouth Shikoku
Rating (10 max)	3	4	4	3	3	1	2	2	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Header Global	Trial Harbour Australia	Trial Harbour Australia	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	Ahijedero Mexico	Ahijedero Mexico	Hullets Reef South Africa	Boneyards South Africa	Boneyards South Africa	Ahijedero Mexico	Steep Point Australia	Ahijedero Mexico	Pascuales Mexico	Cyclops Australia
Rating (10 max)	8	6	6	5	6	5	5	5	5	5	5	5	5	5	4	4	5	5	5	4	5	5	5	7

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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