Hanamizu River Surf Forecast

/ Kanagawa (21 surf breaks) /

Japan (129 surf breaks) / Lat Long: (35.29° N 139.26° E)

Surf Forecasts:

Hanamizu River surfForecast / Kanagawa / Japan

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

Forecast update in hr min s Forecast update imminent

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

Today's Hanamizu River sea temperature is 26.5° C
(Which is slightly warmer than usual)

How big are the waves at Hanamizu River today?

The current surf forecast for Hanamizu River at 9AM is: 0.8m 6s primary swell from a South-southwest direction and 0.2m 10s secondary swell from a South-southeast direction, 0.2m 10s secondary swell from a South-southeast direction (forecast issued at 02:00am September 18). The wind direction is predicted to be cross-offshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (18 Sep)	2.5ft (0.8m)	6s
Afternoon (18 Sep)	3.5ft (1.0m)	6s
Evening (18 Sep)	3ft (0.9m)	6s

Table - waves today at Hanamizu River. (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
	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	12 PM	3 PM	6 PM	9 PM
Rating (10 max)	0	0	0	0	0	0	1	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 (?)	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	ESE	NE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE
Period(s) (?)	5	5	5	6	6	6	6	6	6	6	6	10	3	9	11	9	9	13	9	9	11	10	5	5
Wave Graph (?)
kJ (?)	28	20	24	36	37	64	87	55	30	13	7	11	3	3	5	3	3	6	3	3	5	4	4	4
Wind (km/h)	WSW	WSW	WSW	WSW	SW	SSW	W	NE	NE	NE	NE	NNE	NE	NNE	ENE	NE	NNE	N	NNE	N	NNE	ENE	S	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross	cross- on	glass	cross	cross	cross	cross	cross- off	cross	cross- off	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross- on	cross
High Tide / height (m)		1:05AM 1.22					3:53PM 1.34			2:24AM 1.31					4:09PM 1.38				3:18AM 1.39				4:26PM 1.42
Low Tide / height (m)				8:35AM 0.32					9:16PM 0.93				9:19AM 0.29				9:43PM 0.78				9:54AM 0.30

	Thursday 18								Friday 19								Saturday 20
Sunrise	-	-	5:26	-	-	-	-	-	-	-	5:26	-	-	-	-	-	-	-	5:28	-	-	-	-	-
Sunset	-	-	-	-	-	5:46	-	-	-	-	-	-	-	5:45	-	-	-	-	-	-	-	5:44	-	-

Rain (mm)	-	-	-	-	-	-	-	3	2	2	2	2	2	1	1	4	1	2	1	3	2	-	-	1
Temp. °C	27	27	27	29	32	33	31	25	23	23	22	21	20	20	21	20	20	20	20	20	21	21	22	23
Feels °C (?)	30	31	30	32	35	36	35	24	22	23	21	20	19	21	21	21	20	21	21	21	22	23	24	25

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 Kanagawa

Wind Update Continuing clean conditions at Hanamizu River (calm at Kastner Army Airfield/Camp Zama Airport 28 km from Hanamizu River). 0.9m 6s windswell from the SSW with a 0.3m 10s swell from the SE and a 0.2m 13s groundswell, also from the SE. 3 swells combining to make bigger set waves.
2 hours 3 minutes ago Hanamizu River

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28 km away, 2 h 3 min ago

0 km/h

0.0

26.5

Air / Water (°C)

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