Asakawa 48 hour detailed Surf Forecast

Lat Long: 33.63° N 134.38° E

Issued: 2 am 20 Oct 2026 (local time)

Forecast update in hr min

Today's Asakawa sea temperature is

26.2°C

Asakawa 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 Asakawa today (20 Oct):

Morning surf: Morning surf (20 Oct, local time) - 4.5ft (1.4m), 9s period with SE swell.
Afternoon surf: Afternoon surf (20 Oct, local time) - 5.5ft (1.7m), 14s period with SE swell.
Evening surf: Evening surf (20 Oct, local time) - 5ft (1.6m), 13s period with SE swell.

The current surf forecast for Asakawa at 7AM is: 1.4m 9s primary swell from a Southeast direction and 0.5m 14s secondary swell from a Southeast direction, 1.0m 5s secondary swell from a South-southwest direction (forecast issued at 02:00am October 20). The wind direction is predicted to be cross-shore.

Time (JST) & Date	Wave Height	Wave Period
Morning (20 Oct)	4.5ft (1.4m)	9s
Afternoon (20 Oct)	5.5ft (1.7m)	14s
Evening (20 Oct)	5ft (1.6m)	13s

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

	Short Range Forecast Light rain (total 3mm), mostly falling on Tue afternoon. Warm (max 28°C on Wed morning, min 13°C on Thu night). Wind will be generally light.
	Tuesday 20								Wednesday 21								Thursday 22
	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)	1	1	1	1	1	2	2	2	3	3	2	2	0	2	4	4	4	4	4	3	3	3	2	3
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SE 9	SE 9	SE 9	SE 9	SE 13	SE 14	SE 12	SE 13	SE 13	SSE 13	SSE 15	SSE 15	SSE 16	SSE 16	SSE 15	SSE 15	SSE 14	SSE 15	S 15	S 14	S 14	S 14	S 13	S 14
Wave Graph
kJ	281	294	328	300	734	1203	689	905	721	943	744	1835	2414	2109	2763	2786	2064	3308	2717	2407	2248	1657	987	2121
Wind (km/h)	SW	SW	WSW	SW	SSW	SSW	SW	WSW	SW	WSW	SW	SW	SW	SW	W	NE	NE	NNE	N	N	NNE	NNE	NNE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross	cross	cross	cross	cross-on	cross-on	cross	cross	cross	cross	cross	cross	cross-on	cross	cross-off	cross-off	cross-off	cross-off	off	cross-off	cross-off	cross-off	cross-off	cross-off
High Tide	11:03PM1.25m					2:47PM1.44m				1:33AM1.28m					3:15PM1.53m			2:47AM1.40m					3:39PM1.61m
Low Tide				7:06AM0.67m				8:46PM1.07m				8:17AM0.63m					9:18PM0.90m				9:06AM0.57m


	—	—	6:09	—	—	—	—	—	—	—	6:11	—	—	—	—	—	—	—	6:11	—	—	—	—	—
	—	—	—	—	—	5:22	—	—	—	—	—	—	—	5:22	—	—	—	—	—	—	—	5:21	—	—
mm	—	—	—	—	—	1	—	—	—	—	—	—	—	—	1	—	1	—	—	—	—	—	—	—
Temp °C	23	23	23	25	27	27	24	23	23	23	23	26	28	28	25	23	21	19	17	17	20	20	16	14
Feels °C	25	25	25	28	28	29	27	25	25	24	24	27	28	29	28	26	23	19	15	14	16	15	11	10
Swell 1 Height (m) Direction Period (s)	SE 9	SE 9	SE 9	SE 9	SE 13	SE 14	SE 12	SE 13	SE 13	SSE 13	SE 12	SSE 15	SSE 16	SSE 16	SSE 15	SSE 15	SSE 14	SSE 15	S 15	S 14	S 14	S 14	S 13	S 14
kJ	281	294	328	300	734	1203	689	905	721	943	645	1835	2414	2109	2763	2786	2064	3308	2717	2407	2248	1657	987	2121
Swell 2 Height (m) Direction Period (s)	SE 15	SE 15	SE 14	SE 13	SSE 16	SSE 19	SSE 15	SSE 18	SSE 17	SSE 16	SSE 15	SE 12	ESE 9	S 19	S 20	S 19	S 17	ESE 9	ESE 9	ESE 9	ESE 10	S 18	S 15	ESE 10
kJ	56	104	89	88	223	74	242	329	665	480	744	657	45	848	618	1026	1422	73	55	56	63	625	661	61
Swell 3 Height (m) Direction Period (s)	SSE 18	SE 19	SSE 18	SSE 16	S 22	SSE 19	SSE 19	—	—	—	ESE 9	ESE 10	—	—	SW 5	SW 6	SW 5	—	—	—	ESE 10	ESE 9	SSW 18	ESE 10
kJ	32	88	120	155	9	71	125	—	—	—	48	74	—	—	27	79	23	—	—	—	65	56	546	61
Wind waves Height (m) Direction Period (s)	SSW 5	SSW 5	SSW 5	SSW 5	SSW 5	—	—	SW 4	SSW 4	SW 4	SW 4	SW 4	SW 5	SW 5	SW 5	—	NNE 5	NNE 5	NNE 5	NNE 4	NNE 4	NE 5	NNE 5	NNE 5
kJ	39	37	42	57	44	—	—	12	8	46	27	31	41	55	85	—	59	105	24	16	40	73	83	102
Nearest Offshore or Glassy	Dead Man's Land Shikoku	Dead Man's Land Shikoku	Dead Man's Land Shikoku	Dead Man's Land Shikoku	Takegashima Shikoku	Dead Man's Land Shikoku	Dead Man's Land Shikoku	Dead Man's Land Shikoku	Dead Man's Land Shikoku	Takegashima Shikoku	Takegashima Shikoku	Takegashima Shikoku	Takegashima Shikoku	Takegashima Shikoku	Asakawa Shikoku	Asakawa Shikoku	Asakawa Shikoku	Asakawa Shikoku	Asakawa Shikoku	Yasuda Rivermouth Shikoku	Yasuda Rivermouth Shikoku	Yasuda Rivermouth Shikoku	Yasuda Rivermouth Shikoku	Yasuda Rivermouth Shikoku
Rating (10 max)	2	3	3	3	3	4	4	4	4	4	4	4	4	4	4	4	4	4	4	5	4	5	4	5
Distance (km)	2	2	2	2	11	2	2	2	2	11	11	11	11	11	0	0	0	0	0	43	43	43	43	43
Best forecast wave conditions in Shikoku	Takegashima	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Takegashima	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Kaifu Rivermouth	Takegashima	Niyodo Rivermouth	Takegashima	Takegashima	Takegashima	Niyodo Rivermouth	Niyodo Rivermouth	Yasuda Rivermouth	Kaifu Rivermouth	Yasuda Rivermouth	Yasuda Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth
Rating (10 max)	2	3	3	3	3	4	4	4	4	4	4	4	4	4	5	5	5	4	5	5	4	5	4	5
Best forecast wave conditions in Japan	Susuki Shizuoka	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Takegashima Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kaifu Rivermouth Shikoku	Takegashima Shikoku	Niyodo Rivermouth Shikoku	Takegashima Shikoku	Takegashima Shikoku	Takegashima Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Aoura Kyu Shu	Kaifu Rivermouth Shikoku	Nagata Kyu Shu	Nagata Kyu Shu	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kaiser's (Hachijojima Island) Izu Islands	Niyodo Rivermouth Shikoku
Rating (10 max)	2	3	3	3	3	4	4	4	4	4	4	4	4	4	5	5	5	4	5	5	4	5	4	5
Header Global	Thurso East United Kingdom	Thurso East United Kingdom	Alnes Lighthouse Norway	Alnes Lighthouse Norway	Alnes Lighthouse Norway	Alnes Lighthouse Norway	Moning Philippines	Cyclops Australia	Cyclops Australia	Cyclops Australia	Cyclops Australia	Cyclops Australia	Baler - Lindy's Point Philippines	Malaking Gasang (Baler) Philippines	Lucky Point Philippines	Lucky Point Philippines	Lucky Point Philippines	Haga-Haga South Africa	Trial Harbour Australia	Easter Reef Australia	Barbel Point South Africa	Barbel Point South Africa	Trial Harbour Australia	Trial Harbour Australia
Rating (10 max)	6	7	7	6	5	5	5	5	6	6	6	7	7	7	9	9	8	9	8	6	5	5	6	6

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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Asakawa 48 hour detailed Surf Forecast

How big are the waves at Asakawa today (20 Oct):

Short Range Forecast

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