Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 8 pm 05 Nov 2026 (local time)

Forecast update in hr min

Today's Katahama sea temperature is

22.1°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 (06 Nov):

Morning surf: Morning surf (06 Nov, local time) - 6ft (1.8m), 12s period with SSE swell.
Afternoon surf: Afternoon surf (06 Nov, local time) - 3.5ft (1.0m), 11s period with SE swell.
Evening surf: Evening surf (06 Nov, local time) - 3.5ft (1.1m), 10s period with ESE swell.

The current surf forecast for Katahama at 12AM is: 3.0m 14s primary swell from a South-southeast direction and 1.8m 10s secondary swell from a East-southeast direction (forecast issued at 08:00pm November 05). The wind direction is predicted to be cross-offshore and the swell rating is 11.

Time (JST) & Date	Wave Height	Wave Period
Morning (06 Nov)	6ft (1.8m)	12s
Afternoon (06 Nov)	3.5ft (1.0m)	11s
Evening (06 Nov)	3.5ft (1.1m)	10s

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

	Short Range Forecast Light rain (total 2mm), mostly falling on Thu night. Warm (max 21°C on Fri morning, min 13°C on Fri night). Winds decreasing (strong winds from the W on Fri afternoon, calm by Sun afternoon).
	Thu 5		Friday 6								Saturday 7								Sun 8
	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	12 AM	3 AM	6 AM
Rating (10 max)	4	5	!	!	2	1	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	S 13	S 14	SSE 14	SSE 13	SSE 12	SSE 12	SSE 11	SE 11	ESE 10	ESE 10	ESE 10	ESE 10	E 10	E 10	ESE 10	ESE 11	E 11	E 11	E 11	E 10	E 10
Wave Graph
kJ	1514	2323	3372	2897	1715	887	478	228	237	232	170	104	71	50	33	43	62	61	82	54	53
Wind (km/h)	W	WSW	WSW	W	W	W	W	W	WNW	WNW	WNW	W	WNW	WNW	W	W	WNW	NW	WNW	WNW	NW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore 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	cross-off	cross-off	cross-off	cross-off	cross-off	off	off	cross-off	glassy
High Tide					3:21AM1.40m				3:16PM1.59m				4:05AM1.47m				3:40PM1.63m				4:43AM1.52m
Low Tide			9:23PM0.65m				9:09AM0.76m				9:54PM0.52m				9:47AM0.80m				10:22PM0.40m


	—	—	—	—	6:11	—	—	—	—	—	—	—	6:11	—	—	—	—	—	—	—	6:13
	—	—	—	—	—	—	—	4:49	—	—	—	—	—	—	—	4:47	—	—	—	—	4:46
mm	1	—	—	2	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	18	18	18	18	19	20	21	20	18	16	15	14	13	14	16	16	13	13	13	13	13
Feels °C	18	19	18	17	14	13	13	11	10	7	6	6	5	6	7	6	5	8	10	10	11
Swell 1 Height (m) Direction Period (s)	ESE 11	S 14	SSE 14	SSE 13	SSE 12	SSE 12	SSE 11	SE 11	ESE 10	ESE 10	ESE 10	ESE 10	E 10	E 10	ESE 10	ESE 11	E 11	E 11	E 11	W 6	W 6
kJ	1192	2323	3372	2897	1715	887	478	228	237	232	170	104	71	50	33	43	62	61	58	91	41
Swell 2 Height (m) Direction Period (s)	S 13	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	SSE 10	S 9	S 9	SSE 8	SSE 8	SSE 8	SSE 8	SSE 8	S 8	—	E 11	E 10	E 10
kJ	1514	901	676	562	416	320	214	167	75	42	41	28	13	7	7	6	1	—	82	54	53
Swell 3 Height (m) Direction Period (s)	—	—	—	S 16	—	—	SE 12	SSE 10	—	—	SE 9	—	—	S 8	S 8	—	—	—	—	ENE 4	E 5
kJ	—	—	—	5	—	—	203	136	—	—	13	—	—	5	5	—	—	—	—	3	4
Wind waves Height (m) Direction Period (s)	—	—	—	—	W 4	W 6	W 6	W 6	WNW 6	WNW 6	W 6	W 6	W 7	WNW 7	WNW 7	WNW 7	WNW 7	WNW 6	WNW 6	WNW 7	—
kJ	—	—	—	—	23	205	428	368	371	418	411	415	506	473	529	529	513	341	150	234	—
Nearest Offshore or Glassy	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Sakawa River Kanagawa	Usami Shizuoka	Keta Reef Oshima Izu Islands	Usami Shizuoka	Usami Shizuoka	Sakawa River Kanagawa	Sakawa River Kanagawa	Amatu Chiba	Kamogawa Chiba	Keta Reef Oshima Izu Islands	Kisami-Ohama Beach Shizuoka	Kisami-Ohama Beach Shizuoka	Kisami-Ohama Beach Shizuoka	Uchiboso Chiba	Susuki Shizuoka	Susuki Shizuoka	Susuki Shizuoka
Rating (10 max)	4	4	4	4	4	1	2	2	1	2	1	3	2	1	1	1	1	1	1	1	1
Distance (km)	2	2	2	2	103	85	104	85	85	103	103	186	178	104	65	65	65	150	6	6	6
Best forecast wave conditions in Shizuoka	Akabane Long Beach	Shimoda Yamatoken (Tatado Hama)	Shimoda Yamatoken (Tatado Hama)	Suruga Bay		Usami		Usami	Usami						Kisami-Ohama Beach	Kisami-Ohama Beach	Shimoda Yamatoken (Tatado Hama)		Susuki	Shimoda Yamatoken (Tatado Hama)	Susuki
Rating (10 max)	4	4	4	4		1		2	1						1	1	1		1	1	1
Best forecast wave conditions in Japan	Kaiser's (Hachijojima Island) Izu Islands	Kaiser's (Hachijojima Island) Izu Islands	Niyodo Rivermouth Shikoku	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Katagai Chiba	Matsube Bay Chiba	Chikura Chiba	Mera Chiba	Kamogawa Chiba	Matsube Bay Chiba	Amatu Chiba	Kuminatu Chiba	Mera Chiba	Mera Chiba	Matsube Bay Chiba	Mera Chiba	Niyodo Rivermouth Shikoku	Mera Chiba	Katagai Chiba	Katagai Chiba
Rating (10 max)	6	8	5	5	5	4	4	4	4	4	3	3	2	4	4	2	2	1	2	1	1
Header Global	Kaiser's (Hachijojima Island) Japan	Kaiser's (Hachijojima Island) Japan	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Ranches United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Haga-Haga South Africa	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Cortez Bank United States	Fish Boma South Africa
Rating (10 max)	6	8	5	5	5	5	8	8	7	6	6	7	5	9	9	8	7	6	6	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 (06 Nov):

Short Range Forecast

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