Hanamizu River surfForecast / Kanagawa / Japan

information circle16 Day Weather and Surf, issued 2 pm Monday 25 May 2026 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
19.8° C
(Which is 1.6°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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 29) at 3AM. The primary swell is predicted to be 2.1m and 7s period with a secondary swell of 1.3m and 7s. Another secondary swell of 0.1m and 12s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Hanamizu River in the next 16 days are 1.3m 15s and forecast to arrive on Monday (Jun 01) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 29th May)7ft (2.1m) 7s
Best Surf 3AM (Fri 29th May)7ft (2.1m) 7s
Most Powerful 9PM (Mon 1st Jun)4.5ft (1.3m) 15s

Table - best surf conditions forecast for Hanamizu River over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 24°C on Tue afternoon, min 19°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Fri afternoon, min 19°C on Sat night). Wind will be generally light.

Mon
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
2
1
1
0
0
0
0
0
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SSE
7
0.5
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.3
SE
7
0.3
SE
7
0.3
SE
7
0.8
SSW
4
0.7
S
4
1.3
S
6
1.7
SSW
7
2.1
SSW
7
0.9
SSW
8
0.4
SW
7
0.3
SSE
7
0.3
S
14
0.7
S
13
0.8
S
12
0.9
SSW
14
1.2
SSW
14
Wave Graph
Metric surfscale
Energy kJ
37
28
20
20
20
8
8
8
20
15
143
310
469
99
14
9
37
168
199
331
571
Wind (km/h)
5
SSE
5
WNW
5
ENE
5
SSE
5
NW
10
NE
5
S
10
SSW
15
SSW
15
SSW
10
SW
5
S
15
SW
5
NE
10
SSE
20
S
5
WSW
5
ENE
15
S
10
WSW
5
SSE
on
glassy
cross
on
off
cross
cross-on
cross
cross
cross
cross
glassy
cross
glassy
cross-on
cross-on
cross-off
cross-on
cross-on
cross-off
cross-on
High Tide
00:51AM1.31m
1:50PM1.13m
1:23AM1.34m
2:57PM1.20m
1:53AM1.37m
3:47PM1.27m
2:23AM1.40m
4:29PM1.33m
2:53AM1.42m
5:07PM1.36m
3:24AM1.44m
5:43PM1.38m
3:56AM1.45m
Low Tide
6:10PM0.69m
7:38AM0.62m
7:11PM0.78m
8:20AM0.47m
8:04PM0.85m
8:56AM0.34m
8:50PM0.90m
9:30AM0.24m
9:30PM0.93m
10:02AM0.17m
10:06PM0.95m
10:36AM0.13m
10:40PM0.97m
11:10AM0.11m
clear
clear
part cloud
clear
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
4:31
4:31
4:31
4:30
4:30
4:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:46
6:47
6:49
6:49
6:50
6:51
6:51
Temp °C
23
20
23
24
21
23
24
22
22
21
22
25
28
24
22
22
20
23
23
21
23
23
21
24
24
22
23
25
24
22
22
24
28
27
25
19
19
19
23
22
21
22
Swell 1
Height (m)
Direction
Period (s)
0.6
SSE
7
0.5
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.3
SE
7
0.3
SE
7
0.3
SE
7
0.2
ESE
10
0.1
SE
7
0.1
E
12
1.1
SSW
7
0.1
SE
12
0.9
SSW
8
0.4
SW
7
0.3
SSE
7
0.4
SSW
7
0.7
S
13
0.8
S
12
0.9
SSW
14
1.2
SSW
14
Energy kJ
37
28
20
20
20
8
8
8
9
2
3
140
6
99
14
9
18
168
199
331
571
Swell 2
Height (m)
Direction
Period (s)
0.2
SSW
9
0.3
SSE
7
0.2
SSE
7
0.2
S
6
0.1
S
6
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
E
13
0.1
SE
9
0.3
ESE
10
0.1
E
12
0.1
S
15
0.1
SE
12
0.3
SSE
7
0.2
SSW
7
0.3
S
14
0.4
S
6
0.1
SE
12
0.2
SSE
6
0.1
SE
12
Energy kJ
8
9
4
3
1
4
4
4
3
3
20
3
4
6
9
5
37
12
6
3
5
Swell 3
Height (m)
Direction
Period (s)
0.1
E
13
0.2
SSW
7
0.2
S
7
0.1
S
10
0.1
SE
11
0.1
S
6
0.1
S
6
0.1
E
14
0.1
SE
10
0.1
S
9
0.2
ESE
13
0.1
E
10
0.1
S
15
0.1
S
14
0.1
E
12
0.1
SE
8
0.3
SSE
6
0.2
SSW
18
0.4
SE
12
0.1
SE
12
0.3
SE
12
Energy kJ
3
5
4
2
5
1
1
4
4
2
16
2
4
4
3
3
8
31
36
5
21
Wind waves
Height (m)
Direction
Period (s)
0.3
S
2
0.8
SSW
4
0.7
S
4
1.3
S
6
1.7
SSW
7
2.1
SSW
7
0.4
SSE
4
0.3
SSE
4
0.4
S
6
0.4
SSW
4
Energy kJ
1
20
15
143
310
469
4
3
11
6
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
2
1
1
1
1
1
2
1
2
2
1
1
1
1
1
2
2
2
Distance (km)
41
12
41
41
12
41
12
76
77
123
12
0
3
0
59
104
12
10
43
0
33
Best forecast wave conditions in Kanagawa
Rating
(10 max)
2
1
1
2
1
1
1
1
2
2
1
1
2
2
2
3
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
2
2
1
2
3
3
2
2
2
1
2
1
2
4
2
4
5
Header Global
Rating
(10 max)
4
5
4
9
9
6
9
9
6
9
8
6
5
5
5
5
5
7
7
5
5
  • 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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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 16 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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