Asakawa Surf Forecast

/ Shikoku (17 surf breaks) /

Japan (129 surf breaks) / Lat Long: (33.63° N 134.38° E)

Surf Forecasts:

Asakawa surfForecast / Shikoku / Japan

48hr Weather and Surf, issued 2 pm Thursday 18 Sep 2025 JST

Forecast update in hr min s Forecast update imminent

Asakawa surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Asakawa sea temperature is 27.7° C
(Which is 1.2°C warmer than normal for this time of year)

How big are the waves at Asakawa today?

The current surf forecast for Asakawa at 4PM is: 0.5m 10s primary swell from a Southeast direction and 0.5m 5s secondary swell from a South direction (forecast issued at 02:00pm September 18). The wind direction is predicted to be glassy.

Time (JST) & Date	Wave Height	Wave Period
Morning (18 Sep)	-	-
Afternoon (18 Sep)	1.5ft (0.5m)	10s
Evening (18 Sep)	1.5ft (0.5m)	10s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Thursday 18				Friday 19								Saturday 20								Sunday 21
	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM
Rating (10 max)	0	1	1	1	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	E	ESE	ESE	ESE	ESE	ESE	ESE	ESE	SE	SE	SE
Period(s) (?)	10	10	10	10	10	10	10	10	9	9	9	9	9	9	9	9	9	9	9	9	9	9	11	11
Wave Graph (?)
kJ (?)	47	47	46	45	45	45	45	44	42	41	41	41	29	43	64	64	116	84	32	32	32	21	30	30
Wind (km/h)	SE	SSE	NE	NNE	N	NNE	N	NNE	NE	ENE	NE	NNE	NNW	NW	WNW	SSW	SSW	SW	WSW	WNW	N	N	NNE	NNE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	glass	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross- off	glass	glass	glass	glass	cross- on	cross- on	cross- on	cross	cross- off	glass	glass	cross- off	cross- off
High Tide / height (m)			4:44PM 1.63				3:54AM 1.58				5:08PM 1.70				4:40AM 1.69				5:30PM 1.74				5:19AM 1.77
Low Tide / height (m)					10:26PM 0.91				10:31AM 0.31				10:56PM 0.75				11:06AM 0.30				11:24PM 0.60

	Thursday 18				Friday 19								Saturday 20								Sunday 21
Sunrise	-	-	-	-	-	-	5:47	-	-	-	-	-	-	-	5:48	-	-	-	-	-	-	-	5:48	-
Sunset	-	-	6:06	-	-	-	-	-	-	-	6:04	-	-	-	-	-	-	-	6:02	-	-	-	-	-

Rain (mm)	1	4	3	1	-	-	-	-	-	-	-	-	-	-	-	-	1	-	-	1	2	2	1	-
Temp. °C	30	29	27	25	24	23	23	25	27	26	25	25	24	24	24	26	27	28	26	25	25	24	23	25
Feels °C (?)	34	34	31	27	26	24	24	25	28	27	27	28	27	28	28	30	30	30	29	29	30	28	25	26

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Shikoku

Wind Update The wind is still cross-off at Asakawa (light winds from the W at Murotomisaki(47899-0) 46 km from Asakawa). 0.5m 9s swell from the ESE with a 0.4m 5s windswell from the S. 2 swells combining to make bigger set waves.
1 hour 52 minutes ago Asakawa

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46 km away, 1 h 52 min ago

19 km/h

0.0

27.7

Air / Water (°C)

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