Asakawa 48 hour detailed Surf Forecast

Lat Long: 33.63° N 134.38° E

Issued: 8 am 18 Jul 2026 (local time)

Forecast update in hr min

Today's Asakawa sea temperature is

27.3° 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 (18 Jul):

Morning surf: Morning surf (18 Jul, local time) - 1ft (0.3m), 9s period with ESE swell.
Afternoon surf: Afternoon surf (18 Jul, local time) - 1ft (0.3m), 9s period with E swell.
Evening surf: Evening surf (18 Jul, local time) - 1.5ft (0.4m), 8s period with SE swell.

The current surf forecast for Asakawa at 11AM is: 0.3m 9s primary swell from a East-southeast direction and 0.3m 10s secondary swell from a Southeast direction, 0.3m 3s secondary swell from a East-southeast direction (forecast issued at 08:00am July 18). The wind direction is predicted to be onshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (18 Jul)	1ft (0.3m)	9s
Afternoon (18 Jul)	1ft (0.3m)	9s
Evening (18 Jul)	1.5ft (0.4m)	8s

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

	Short Range Forecast Light rain (total 6mm), mostly falling on Sat morning. Warm (max 30°C on Sat morning, min 26°C on Sat night). Wind will be generally light.
	Saturday 18						Sunday 19								Monday 20
	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
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	ESE 9	ESE 9	SE 10	E 9	SE 8	SE 8	SE 8	ESE 10	SE 8	ESE 9	ESE 9	ESE 10	ESE 10	ESE 9	SE 9	ESE 9	ESE 9	ESE 9	SSE 8	ESE 11	ESE 11	ESE 11
Wave Graph
kJ	17	15	15	13	11	18	24	35	32	17	17	18	18	17	20	32	32	31	14	12	12	12
Wind (km/h)	NNW	SE	SSE	SSE	SSE	SSE	S	WSW	W	SSE	SSE	S	S	SW	SW	WSW	W	S	S	S	SSW	WSW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	on	on	on	on	on	on	glassy	glassy	glassy	on	on	cross-on	cross-on	cross	cross	glassy	on	on	cross-on	cross-on	cross
High Tide		8:04AM1.75m					9:08PM1.72m			8:52AM1.63m					9:39PM1.67m				9:44AM1.49m
Low Tide				2:36PM0.26m					3:02AM0.69m				3:11PM0.45m				3:49AM0.67m				3:45PM0.65m


	5:03	—	—	—	—	—	—	5:05	—	—	—	—	—	—	—	5:05	—	—	—	—	—	—
	—	—	—	—	7:12	—	—	—	—	—	—	—	7:12	—	—	—	—	—	—	—	7:10	—
mm	—	—	1	1	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	1	1
Temp °C	27	29	30	30	29	27	27	26	26	29	30	30	29	27	26	26	26	29	30	30	29	27
Feels °C	33	34	34	35	35	32	33	31	31	34	33	34	34	32	31	30	30	33	34	35	34	32
Swell 1 Height (m) Direction Period (s)	ESE 9	ESE 9	ESE 9	SE 8	SE 8	SE 8	SE 8	ESE 10	SE 8	ESE 5	ESE 5	SE 5	SE 4	SE 4	ESE 9	ESE 9	ESE 9	ESE 9	ESE 7	ESE 7	ESE 7	ESE 7
kJ	17	15	15	11	11	18	24	35	32	9	9	6	5	7	15	32	32	31	10	10	10	10
Swell 2 Height (m) Direction Period (s)	SE 9	SE 9	SE 10	E 9	ESE 10	SE 3	ESE 3	SE 8	E 9	ESE 9	ESE 9	ESE 10	ESE 10	ESE 9	SE 4	SSE 9	SSE 9	SSE 9	SSE 8	SSE 8	SSE 8	SSE 8
kJ	13	13	14	13	10	2	1	17	15	17	17	18	18	17	4	8	7	7	14	7	7	7
Swell 3 Height (m) Direction Period (s)	S 8	SSW 7	SSW 6	SSW 6	E 8	E 8	E 9	SSW 6	SSW 7	SE 8	SE 8	SE 8	SSE 8	SSE 7	SE 9	ESE 12	ESE 12	ESE 12	E 9	ESE 11	ESE 11	ESE 11
kJ	4	4	4	4	5	5	7	3	5	10	9	9	6	5	20	14	14	14	6	12	12	12
Wind waves Height (m) Direction Period (s)	ESE 3	ESE 3	ESE 4	SE 4	SE 4	SE 3	SE 3	—	—	—	—	—	SSW 5	SE 4	SSE 5	SW 5	S 3	S 3	S 3	S 3	SSW 3	SSW 3
kJ	2	1	2	3	3	2	1	—	—	—	—	—	3	4	7	5	1	1	1	1	3	3
Nearest Offshore or Glassy	Shishikui Beach Shikoku	Yasuda Rivermouth Shikoku	Yasuda Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Keta Reef Oshima Izu Islands	Udo Shrine Kyu Shu	Yasuda Rivermouth Shikoku	Yasuda Rivermouth Shikoku	Yasuda Rivermouth Shikoku	Shishikui Beach Shikoku	Shishikui Beach Shikoku	Osaki Point Shikoku	Kisami-Ohama Beach Shizuoka	Osaki Point Shikoku	Osaki Point Shikoku	Osaki Point Shikoku	Osaki Point Shikoku	Dead Man's Land Shikoku	Dead Man's Land Shikoku	Osaki Point Shikoku	Osaki Point Shikoku	Osaki Point Shikoku
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
Distance (km)	6	43	43	64	475	352	43	43	43	6	6	30	433	30	30	30	30	2	2	30	30	30
Best forecast wave conditions in Shikoku	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth			Yasuda Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Osaki Point		Osaki Point	Osaki Point	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Niyodo Rivermouth	Osaki Point	Osaki Point
Rating (10 max)	1	1	1	1			1	1	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	Keta Reef Oshima Izu Islands	Keta Reef Oshima Izu Islands	Omaezaki Shizuoka	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Niijima - Habushiura Izu Islands	Niijima - Habushiura Izu Islands	Shimoda Yamatoken (Tatado Hama) Shizuoka	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kaiser's (Hachijojima Island) Izu Islands	Niyodo Rivermouth Shikoku	Kaiser's (Hachijojima Island) Izu Islands	Kaiser's (Hachijojima Island) Izu Islands
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	2	2	1	1	1	1	1	1	1	1	1
Header Global	Dunedin - Kuri Bush New Zealand	Dunedin - Bobs Beach New Zealand	Dunedin - Bobs Beach New Zealand	Seconds (White Rock) New Zealand	Papatowai New Zealand	Seconds (White Rock) New Zealand	Seconds (White Rock) New Zealand	Seconds (White Rock) New Zealand	Seconds (White Rock) New Zealand	Kaka Point New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Humenga Point New Zealand	Otago Peninsula - Allans Beach New Zealand	Ning Nong Point and Reef New Zealand
Rating (10 max)	7	6	6	9	9	9	8	7	6	6	6	6	6	7	7	7	8	7	7	6	5	7

Map Icons:
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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 (18 Jul):

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