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Surf Forecasts:

Hanamizu River surfForecast / Kanagawa / Japan

information circle12 Day Weather and Surf, issued 2 am Thursday 20 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
19.7° C
 (Which is 1.4°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 Friday (Nov 21) at 6PM. The primary swell is predicted to be 1.6m and 6s period with a secondary swell of 0.6m and 6s. Another secondary swell of 0.2m and 8s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Hanamizu River in the next 12 days are 2.3m 10s and forecast to arrive on Wednesday (Nov 26) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Friday (Nov 21) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Fri 21st Nov)5ft (1.6m) 6s
Best Surf 9AM (Wed 26th Nov)7.5ft (2.3m) 10s
Most Powerful 9AM (Wed 26th Nov)7.5ft (2.3m) 10s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Very mild (max 16°C on Fri afternoon, min 9°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Sun night. Very mild (max 17°C on Tue afternoon, min 12°C on Sun morning). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
3
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.1
SE
0.1
SE
0.1
S
0.1
E
0.4
SW
0.7
SW
0.1
SE
0.1
E
0.1
SE
0.1
E
0.4
SE
0.8
SSE
0.8
SE
0.8
SE
0.6
SE
0.5
SE
0.5
SE
1.6
SSW
2.3
SW
0.6
SSW
0.3
SW
Period(s) (?)11779561111101067889986101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)52226345242106675825937351569646814
Wind
(km/h)
10
NNE
10
SE
10
NW
5
WSW
5
SW
10
NW
5
S
15
SSE
5
WSW
5
NNE
5
ESE
10
N
5
N
5
ESE
5
NW
0
E
20
SSW
20
WSW
5
E
10
SSE
10
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		onoffglassglassoffglassoncross-
off		cross-
off		glasscross-
off		glassglassoffglasscrosscross-
off		glassoncross-
on
High Tide
/ height (m)
3:42PM
1.46
5:44AM
1.41
4:08PM
1.47
6:19AM
1.39
4:36PM
1.47
6:56AM
1.36
5:06PM
1.46
7:36AM
1.32
5:37PM
1.42
8:21AM
1.29
6:11PM
1.36
9:13AM
1.27
6:53PM
1.28
Low Tide
/ height (m)
10:20AM
0.89
10:44PM
0.11
10:49AM
0.92
11:15PM
0.09
11:18AM
0.95
11:49PM
0.11
11:48AM
0.98
12:24AM
0.15
12:21PM
1.00
1:02AM
0.20
1:02PM
1.02
1:42AM
0.28
2:00PM
1.04
2:29AM
0.36
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Sunrise6:20--6:22--6:22--6:24--6:24--6:26--6:26--
Sunset-4:34--4:34--4:32--4:32--4:31--4:31--4:31-
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
rain showers
clear
clear
clear
part cloud
cloud
clear
clear
clear
clear
Rain (mm)
-----------6---------
Temp. °C121312141613141413131414161615161714141413
Feels °C (?)8101011141010101011131315151314121110109
  • 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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Feel that? If you are in the northern hemisphere, you will have had that first bite of winter. The lick of a frost, the chill of a cold offshore breeze and the sound of winter swells pounding the shores. If you are near the mountains, your favourite jackets, gloves, and footwear might get dusted off and prepped for battle. And in that beautiful Venn diagram, you will find PrimaLoft. They have spent over 40 years developing innovative insulations that have powered your warmest winter gear. In t

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Hanamizu River surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Hanamizu River at:
surf-forecast.com

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.

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