Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 am 31 Oct 2026 (local time)

Forecast update in hr min

Today's Katahama sea temperature is

23.1°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 (31 Oct):

Morning surf: Morning surf (31 Oct, local time) - 4.5ft (1.3m), 10s period with SE swell.
Afternoon surf: Afternoon surf (31 Oct, local time) - 2.5ft (0.8m), 16s period with SE swell.
Evening surf: Evening surf (31 Oct, local time) - 3.5ft (1.1m), 18s period with SE swell.

The current surf forecast for Katahama at 6AM is: 0.6m 21s primary swell from a Southeast direction and 1.3m 8s secondary swell from a Southeast direction (forecast issued at 02:00am October 31). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (31 Oct)	4.5ft (1.3m)	10s
Afternoon (31 Oct)	2.5ft (0.8m)	16s
Evening (31 Oct)	3.5ft (1.1m)	18s

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

	Short Range Forecast Moderate rain (total 14mm), heaviest on Mon afternoon. Warm (max 21°C on Sat morning, min 13°C on Mon night). Winds decreasing (fresh winds from the W on Sat afternoon, calm by Sun morning).
	Saturday 31								Sunday 1								Monday 2
	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)	2	2	1	1	1	0	3	4	4	4	5	4	4	3	4	3	3	3	3	3	3	3	3	3
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SE 8	SE 8	SE 21	SE 10	SE 16	SE 16	SE 19	SE 18	SE 20	SE 19	SE 18	SE 17	SE 16	SE 15	SSE 15	SSE 15	SSE 14	SSE 14	SSE 13	SSE 13	SSE 13	SSE 13	SSE 13	SSE 13
Wave Graph
kJ	319	227	269	296	844	375	1677	752	2110	2117	2485	2340	2349	2120	1937	1739	1389	1143	915	756	745	640	620	630
Wind (km/h)	NW	WSW	W	W	W	W	WNW	WNW	NNW	NW	NW	N	SSE	SSW	WSW	W	W	W	W	WSW	N	N	W	NNW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	off	cross-off	cross-off	cross-off	cross-off	cross-off	off	off	off	off	off	glassy	glassy	cross	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	glassy	cross-off	cross-off	off
High Tide					9:22AM1.44m			7:47PM1.49m					10:46AM1.40m			8:45PM1.35m						12:22PM1.42m
Low Tide		2:19AM0.35m				2:31PM1.12m					3:18AM0.46m				4:12PM1.16m				4:31AM0.57m					6:22PM1.10m


	—	—	6:05	—	—	—	—	—	—	—	6:05	—	—	—	—	—	—	—	6:07	—	—	—	—	—
	—	—	—	—	—	4:54	—	—	—	—	—	—	—	4:53	—	—	—	—	—	—	—	4:52	—	—
mm	7	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	6	7	—
Temp °C	17	18	18	19	21	21	18	16	16	16	16	17	19	19	19	18	18	17	16	18	15	14	15	15
Feels °C	17	18	14	13	14	13	11	11	13	14	14	16	18	18	17	15	15	14	13	16	14	13	15	14
Swell 1 Height (m) Direction Period (s)	SE 8	SE 8	SE 8	SE 10	SE 16	SE 10	SE 19	SE 15	SE 20	SE 19	SE 18	SE 17	SE 16	SE 15	SSE 15	SSE 15	SSE 14	SSE 14	SSE 13	SSE 13	SSE 13	SSE 13	SSE 13	SSE 13
kJ	319	227	232	296	844	229	1677	743	2110	2117	2485	2340	2349	2120	1937	1739	1389	1143	915	756	745	640	620	630
Swell 2 Height (m) Direction Period (s)	SE 13	SE 13	SE 21	SE 19	SE 20	SE 16	SE 20	SE 18	ESE 10	ESE 10	SSE 18	W 5	E 8	E 9	E 10	E 10	E 10	E 10	E 9	E 9	ESE 9	SW 5	SW 6	SW 7
kJ	40	109	269	278	322	375	557	752	105	105	1288	28	66	74	45	48	67	47	45	43	28	36	139	163
Swell 3 Height (m) Direction Period (s)	SE 16	SE 20	SE 14	SE 21	SE 20	SE 20	—	SE 18	ESE 10	—	—	—	—	—	—	—	—	—	—	—	—	E 9	E 9	E 9
kJ	39	134	68	117	335	315	—	366	109	—	—	—	—	—	—	—	—	—	—	—	—	43	26	41
Wind waves Height (m) Direction Period (s)	—	W 2	W 4	W 5	W 6	W 6	W 6	W 6	WNW 6	W 5	W 5	WNW 5	—	—	—	WSW 4	WSW 4	WSW 4	SW 5	SW 5	SW 5	SW 5	E 9	—
kJ	—	1	17	111	200	255	258	197	130	57	29	62	—	—	—	13	16	16	22	18	13	115	42	—
Nearest Offshore or Glassy	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Sakawa River Kanagawa	Sagami River Kanagawa	Sakawa River Kanagawa	Kisami-Ohama Beach Shizuoka	Shimoda Yamatoken (Tatado Hama) Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Kisami-Ohama Beach Shizuoka	Suruga Bay Shizuoka	Susuki Shizuoka	Susuki Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka	Suruga Bay Shizuoka
Rating (10 max)	1	1	3	2	3	3	4	3	3	4	4	4	4	4	4	4	4	3	3	2	2	2	2	2
Distance (km)	2	2	103	124	103	65	66	2	2	2	2	2	2	65	2	6	6	2	2	2	2	2	2	2
Best forecast wave conditions in Shizuoka	Akabane Long Beach	Akabane Long Beach				Usami	Shimoda Yamatoken (Tatado Hama)	Shimoda Yamatoken (Tatado Hama)	Usami	Akabane Long Beach	Susuki	Akabane Long Beach	Akabane Long Beach	Akabane Long Beach	Shimoda Yamatoken (Tatado Hama)	Susuki	Akabane Long Beach	Akabane Long Beach	Akabane Long Beach	Susuki	Akabane Long Beach	Akabane Long Beach	Susuki	Suruga Bay
Rating (10 max)	2	2				3	4	3	3	4	5	5	4	4	4	4	4	4	4	3	3	3	3	2
Best forecast wave conditions in Japan	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kuminatu Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kaiser's (Hachijojima Island) Izu Islands	Kaiser's (Hachijojima Island) Izu Islands	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku
Rating (10 max)	3	3	4	4	4	4	4	4	4	5	5	5	5	5	5	4	4	4	4	4	4	4	3	3
Header Global	Nine Mile New Zealand	Dunedin - Bobs Beach New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Ouano Lefts New Caledonia	St Vincent Left New Caledonia	Achadas Da Cruz Portugal	Niyodo Rivermouth Japan	Afife Portugal	Kaiser's (Hachijojima Island) Japan	Kaiser's (Hachijojima Island) Japan	Kaiser's (Hachijojima Island) Japan	Kaiser's (Hachijojima Island) Japan	Ahijedero Mexico	Ahijedero Mexico	Malaking Gasang (Baler) Philippines	Trial Harbour Australia	Ahijedero Mexico	Ahijedero Mexico	Ahijedero Mexico	Lincoln City Nelscott Reef United States	Lebu Chile
Rating (10 max)	5	8	7	6	5	5	5	5	4	5	4	5	5	5	5	4	4	4	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 (31 Oct):

Short Range Forecast

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