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

12 Day Weather and Surf, issued 8 pm Sunday 09 Nov 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 20.5° C
(Which is 1.3°C colder than average for this time of year)

Best Forecast Surf Conditions for Hanamizu River this week:

The surf forecast for Hanamizu River over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Nov 10) at 12AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.8m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Hanamizu River in the next 12 days are 1.6m 6s and forecast to arrive on Monday (Nov 17) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Nov 10) at 6PM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	12AM (Mon 10th Nov)	2.5ft (0.8m) 8s
Best Surf	12AM (Mon 17th Nov)	5ft (1.6m) 6s
Most Powerful	12AM (Mon 17th Nov)	5ft (1.6m) 6s

Table - best surf conditions forecast for Hanamizu River over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 4mm), mostly falling on Sun night. Very mild (max 19°C on Mon afternoon, min 11°C on Tue night). Wind will be generally light.										Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Thu night. Very mild (max 18°C on Fri afternoon, min 13°C on Wed night). Wind will be generally light.
		Monday 10			Tuesday 11			Wednesday 12			Thursday 13			Friday 14			Saturday 15			Sun 16
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	1	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSE	SSW	SSW	SSE	SSW	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSE	SE	SE	SE	SE	SE	SE
Period(s) (?)	8	8	8	10	13	13	14	13	12	11	11	10	10	9	9	10	9	9	8	8	7
Wave Graph (?)
kJ (?)	78	85	39	32	33	125	173	131	82	48	22	10	19	17	30	45	55	30	25	20	19
Wind (km/h)	NNW	ESE	ENE	S	ENE	ESE	NNE	NE	SSE	WSW	NW	E	NNE	NE	E	ENE	NNE	E	NNW	N	N
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	glass	glass	cross- on	cross- on	cross- on	on	cross- off	cross- off	cross- on	cross- off	glass	glass	cross- off	cross	cross- on	cross	cross- off	cross- on	cross- off	cross- off	cross- off
High Tide / height (m)		9:00AM 1.29		6:22PM 1.44	10:19AM 1.23		7:08PM 1.31	11:39AM 1.22		8:27PM 1.16		12:35PM 1.24	11:06PM 1.07		1:10PM 1.27	1:09AM 1.10		1:38PM 1.31	2:23AM 1.17		2:03PM 1.35
Low Tide / height (m)	1:23AM 0.06		1:10PM 1.11	2:17AM 0.21		2:14PM 1.13		3:21AM 0.37	4:28PM 1.09		4:38AM 0.51		6:39PM 0.95	5:58AM 0.61		7:36PM 0.78	7:05AM 0.68		8:14PM 0.61	7:56AM 0.74

		Monday 10			Tuesday 11			Wednesday 12			Thursday 13			Friday 14			Saturday 15			Sun 16
Sunrise	-	6:11	-	-	6:13	-	-	6:13	-	-	6:13	-	-	6:15	-	-	6:16	-	-	6:16	-
Sunset	-	-	4:40	-	-	4:39	-	-	4:38	-	-	4:37	-	-	4:37	-	-	4:37	-	-	4:36

Rain (mm)	2	1	1	-	-	-	-	-	-	-	-	1	3	-	-	-	-	-	-	7	11
Temp. °C	16	18	19	14	14	14	14	14	14	14	15	15	15	17	18	16	15	15	15	13	14
Feels °C (?)	16	16	17	12	12	11	11	10	11	11	14	15	12	14	15	13	11	12	14	9	11

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

Quick surf report for Hanamizu River:

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Information about the Hanamizu River Surf forecast

The above surf forecast table for Hanamizu River provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Hanamizu River can be found by selecting the local surf guide option on the grey menu. Our Hanamizu River surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Hanamizu River) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Hanamizu River may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Hanamizu River is 1 km (1 miles) from Ninomiya. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Ninomiya. Ninomiya has rooms for a wide range of budgets as well as car hire and transport links.