Asakawa 48 hour detailed Surf Forecast

Lat Long: 33.63° N 134.38° E

Issued: 2 am 21 Jul 2026 (local time)

Forecast update in hr min

Today's Asakawa sea temperature is

27.8° 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 (21 Jul):

Morning surf: Morning surf (21 Jul, local time) - 0.5ft (0.2m), 11s period with ESE swell.
Afternoon surf: Afternoon surf (21 Jul, local time) - 1ft (0.3m), 11s period with ESE swell.
Evening surf: Evening surf (21 Jul, local time) - 1ft (0.3m), 11s period with ESE swell.

The current surf forecast for Asakawa at 11AM is: 0.3m 11s primary swell from a East-southeast direction and 0.2m 8s secondary swell from a South-southeast direction, 0.3m 3s secondary swell from a Southwest direction (forecast issued at 02:00am July 21). The wind direction is predicted to be onshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (21 Jul)	0.5ft (0.2m)	11s
Afternoon (21 Jul)	1ft (0.3m)	11s
Evening (21 Jul)	1ft (0.3m)	11s

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

	Short Range Forecast Moderate rain (total 12mm), heaviest on Thu afternoon. Warm (max 31°C on Tue morning, min 27°C on Tue night). Wind will be generally light.
	Tuesday 21								Wednesday 22								Thursday 23
	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)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 10	ESE 10	ESE 11	ESE 11	SW 4	SE 11	SE 10	SE 10	SE 10	SE 10	SE 10
Wave Graph
kJ	12	23	12	11	23	23	22	22	22	22	22	22	11	11	11	11	11	11	18	25	25	25	25	16
Wind (km/h)	W	WNW	WNW	SSE	SSE	SSW	SW	WSW	W	W	WNW	E	ESE	S	SW	WSW	W	NW	NW	SSE	SSE	SSW	SSW	WSW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	glassy	glassy	on	cross-on	cross-on	cross	cross-off	cross-off	glassy	cross	cross-on	cross-on	cross-on	cross	cross-off	glassy	glassy	glassy	on	cross-on	cross-on	cross
High Tide	10:10PM1.62m				10:46AM1.35m				10:42PM1.56m					12:10PM1.25m			11:21PM1.50m					2:11PM1.24m
Low Tide			4:40AM0.66m				4:20PM0.84m				5:41AM0.66m				5:01PM1.01m					6:53AM0.64m				6:12PM1.14m


	—	5:05	—	—	—	—	—	—	—	5:07	—	—	—	—	—	—	—	5:07	—	—	—	—	—	—
	—	—	—	—	—	—	7:09	—	—	—	—	—	—	—	7:09	—	—	—	—	—	—	—	7:08	—
mm	—	—	—	—	—	1	1	1	—	—	—	—	1	1	1	1	—	—	—	—	1	2	1	1
Temp °C	28	27	27	30	31	31	30	28	28	27	27	30	31	31	30	28	28	27	27	30	31	31	30	28
Feels °C	33	32	32	35	36	36	35	33	33	32	32	35	37	36	35	33	33	32	32	35	36	36	35	33
Swell 1 Height (m) Direction Period (s)	ESE 7	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 10	ESE 10	ESE 11	ESE 11	SW 3	SSW 4	SE 10	SE 10	SE 10	SE 10	SE 10
kJ	9	23	12	11	23	23	22	22	22	22	22	22	11	11	11	11	11	2	1	25	25	25	25	16
Swell 2 Height (m) Direction Period (s)	SSE 8	SSW 3	ESE 7	SSE 8	SSE 8	SSE 8	SSE 8	SSE 8	SSE 8	SSE 8	SW 3	SSE 8	SSE 8	SSE 8	SSE 7	SSE 8	SSE 8	ESE 11	SE 11	SSW 4	SSW 4	SE 19	S 8	SE 19
kJ	7	1	4	7	7	6	6	6	6	6	2	6	6	6	5	6	6	11	18	1	1	15	4	14
Swell 3 Height (m) Direction Period (s)	ESE 11	ESE 7	SSE 8	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	SE 6	SE 6	SSE 8	SSW 3	—	S 7	S 8	SE 10	SE 11	SE 11	ESE 10	SE 20	SE 20	S 8	SE 19	SE 8
kJ	12	4	7	4	4	4	4	4	2	1	6	1	—	1	1	4	4	4	10	15	15	5	15	3
Wind waves Height (m) Direction Period (s)	SW 3	SW 3	SW 3	SW 3	SW 3	—	SW 3	SW 3	SW 3	SW 3	—	SW 3	—	—	SW 3	SW 3	SW 3	SW 4	SW 4	—	—	SW 2	SSW 3	SW 3
kJ	3	6	3	1	1	—	2	2	1	1	—	2	—	—	2	3	1	9	5	—	—	1	3	3
Nearest Offshore or Glassy	Osaki Point Shikoku	Osaki Point Shikoku	Osaki Point Shikoku	Osaki Point Shikoku	Osaki Point Shikoku	Osaki Point Shikoku	Osaki Point Shikoku	Lena Kyu Shu	Osaki Point Shikoku	Osaki Point Shikoku	Osaki Point Shikoku	Osaki Point Shikoku	Akabane Long Beach Shizuoka	Torami Chiba	Aoshima Kyu Shu	Golfcourse Kyu Shu	Okuragahama Kyu Shu	Akabane Long Beach Shizuoka	Akabane Long Beach Shizuoka	Shishikui Beach Shikoku	Kurihama Kanagawa	Kisami-Ohama Beach Shizuoka	Ikumi Beach Shikoku	Okuragahama Kyu Shu
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	30	30	30	30	30	30	30	303	30	30	30	30	282	585	339	336	289	282	282	6	518	433	14	289
Best forecast wave conditions in Shikoku	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Osaki Point	Osaki Point	Osaki Point		Osaki Point	Yasuda Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth								Shishikui Beach			Ikumi Beach
Rating (10 max)	1	1	1	1	1	1	1		1	1	1	1								1			1
Best forecast wave conditions in Japan	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Susuki Shizuoka	Kudaka Okinawa	Kudaka Okinawa	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Yona Bay Okinawa	Kudaka Okinawa	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Katagai Chiba	Katagai Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Castles Okinawa	Castles Okinawa	Castles Okinawa	Katagai Chiba
Rating (10 max)	1	1	1	1	1	1	1	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Header Global	Last Chance New Zealand	Diners Beach New Zealand	Diners Beach New Zealand	Purakaunui Bay New Zealand	Asu Indonesia	Asu Indonesia	Aganoa Beach Samoa	Benkunqut Indonesia	Chameau Mauritius	Sea Vista South Africa	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Gas Bay Australia	Cow Bombie Australia	Supertubes Australia	Cobblestones Australia	Cathedral Rock Australia	Cathedral Rock Australia	Cobblestones Australia	Georgica Pond United States	Brak River South Africa	Benkunqut Indonesia	Dolphin Point South Africa
Rating (10 max)	5	5	5	5	4	4	4	4	4	5	5	5	5	6	5	5	5	9	9	5	5	4	4	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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Asakawa 48 hour detailed Surf Forecast

How big are the waves at Asakawa today (21 Jul):

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