Hanamizu River Surf Break

Hanamizu River Surf Forecast and Surf Report

Lat Long: 35.29° N 139.26° E

Issued: 8 pm 06 Jul 2026 (local time)

Forecast update in  hr  min

Today's Hanamizu River sea temperature is
23.8° C

Slightly cooler than normal

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


Hanamizu River surf forecast from 6 Jul 2026:

  • Best quality surf: Wednesday 8 Jul, 3AM (local time) - 4.5ft (1.3m), 16s period, SSE swell with glassy winds.
  • Most powerful swell: Saturday 11 Jul, 3AM (local time) - 7ft (2.2m), 17s period, SSW swell with 2,909 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 7 Jul, 3AM (local time) - 1.5ft (0.4m), 16s period with SSE swell.

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 Tuesday (Jul 07) at 3AM. The primary swell is predicted to be 0.4m and 16s period with a secondary swell of 0.5m and 12s. 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 2.2m 17s and forecast to arrive on Saturday (Jul 11) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Tue 7th Jul)1.5ft (0.4m) 16s
Best Surf 3AM (Wed 8th Jul)4.5ft (1.3m) 16s
Most Powerful 3AM (Sat 11th Jul)7ft (2.2m) 17s

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


Updates in  hr  min  s Forecast update imminent

Alright folks, Rusty here. Let's have a look at what the next couple of weeks are serving up for us.

Right off the bat, it's a slow start. The first real glimmer of something surfable doesn't show up until Tuesday morning the 7th, and even then it’s a bit of a tease. We’re dealing with a pulsing, long-period groundswell from the SSE, but it’s wrapped in some less-than-ideal conditions at Hanamizu River.

Tuesday morning the 7th sees a small 2ft SSE swell, but the period is a solid 15 seconds. That's proper groundswell energy. However, it's coming in with a cross-shore NE wind at 9 mph, so it’ll have a bit of chop on it. The combined energy is a modest 289, hinting at just weak to moderate push. Not much to write home about, but it’s something.

The real interest starts to build on Wednesday morning the 8th. The swell picks up to 5ft from the SSE, still with that lovely 16-second period. The combined energy jumps to a much healthier 1094, which is solid moderate to strong energy. The wind is light out of the ESE at 3 mph, light cross-onshore but with just small wind ripples. It’s still going to be a bit lumpy but that's about as good as it gets for the window. Thursday morning the 9th is another option with a clean onshore wind from the SSE at 6 mph, swell at 5ft and a 14-second period.

Now, if you’re an experienced surfer and can handle some size, Friday morning the 10th is the standout. Swell pushes up to 6ft from the S with that long 16-second period. The combined energy screams through at 1565 – that’s proper power. The wind is light cross-onshore from the SSE at 6 mph, so there’ll be some texture, but the energy is there. It’s a solid size, getting near the top end for a beginner, so keep that in mind. The direction from the S is close to that optimum SE direction the river likes, so it should wrap in okay.

Saturday the 11th holds size but gets windier and uglier. 7ft from the SSW early with a 17-second period is a beast of a swell, but that S wind at 9 mph makes it a choppy mess. By the afternoon, it's over 8ft and with 12 mph winds, it's expert-only and not very inviting.

From Sunday the 12th onwards, it’s a steady fade. The swell drops, the periods shorten, and the winds stay cross-onshore or just messy. We go through a long stretch from Sunday the 12th afternoon right through to Tuesday the 21st where everything is rated as poor. There’s a brief flicker on the morning of Wednesday the 15th with a 3ft SE swell, but it’s still weak. The models show a bit of clean air coming in on Tuesday the 21st and Wednesday the 22nd, with offshore NNW and NNE winds, but the swell is tiny – 1ft and 2ft. That’s barely a ripple.

So, the best bet in this whole outlook is Friday morning the 10th. It’s got the best combo of size, long-period power, and the least offensive wind. Thursday morning the 9th is a solid backup for a cleaner, smaller wave. Everything else is either too small, too windy, or both.

Stay patient, lads. The ocean will give us something soon.
Rusty

Short Range Forecast

Moderate rain (total 13mm), heaviest on Mon night. Warm (max 26°C on Tue afternoon, min 20°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 25°C on Fri morning, min 22°C on Fri night). Wind will be generally light.

Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Mon
13
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
0
1
2
2
1
3
2
1
3
3
1
2
2
0
2
1
0
0
0
0
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
14
0.7
SSE
15
0.9
SSE
15
0.8
SSE
16
1.4
SSE
16
1.5
SSE
16
1.3
SSE
14
1.4
SSE
14
1.5
S
14
1.6
S
15
1.8
S
16
1.9
S
16
1.7
SSW
16
2
SSW
17
1.9
SSW
16
1.6
SSW
16
1.3
SSW
15
1
SSW
14
0.8
SSW
12
0.6
SSW
12
0.6
SSW
12
Wave Graph
Metric surfscale
Energy kJ
138
201
372
328
1094
1068
668
788
868
1104
1545
1766
1455
2378
1896
1245
826
407
172
109
104
Wind (km/h)
10
NNE
15
NE
5
SSE
0
E
5
ESE
15
S
5
SW
10
SSE
15
S
10
SSW
10
SSE
15
S
15
S
15
S
20
S
10
SW
10
SSW
20
SSE
5
SW
10
SSE
15
S
Wind State
cross-off
cross
cross-on
glassy
cross-on
cross-on
glassy
on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
on
cross-on
High Tide
9:08PM1.40m
8:58AM1.15m
9:41PM1.39m
10:25AM1.08m
10:19PM1.38m
12:24PM1.08m
11:05PM1.37m
2:23PM1.17m
00:00AM1.38m
3:42PM1.29m
1:03AM1.41m
4:37PM1.39m
2:07AM1.45m
5:21PM1.45m
Low Tide
3:25AM0.70m
2:58PM0.60m
4:28AM0.62m
3:45PM0.76m
5:38AM0.51m
4:48PM0.92m
6:49AM0.38m
6:20PM1.05m
7:55AM0.23m
7:58PM1.11m
8:54AM0.09m
9:12PM1.12m
9:48AM-0.02m
rain showers
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:33
4:33
4:35
4:35
4:35
4:37
4:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:00
7:00
7:00
7:00
6:59
6:59
6:59
 mm
13
Temp °C
21
25
26
23
24
25
23
25
24
23
25
25
23
24
24
23
25
25
23
25
25
Feels °C
23
24
26
25
26
25
25
26
25
25
26
26
24
24
24
25
25
26
25
26
26
Swell 1
Height (m)
Direction
Period (s)
0.6
SSE
14
0.7
SSE
15
0.9
SSE
15
0.9
SSE
14
1.4
SSE
16
1.5
SSE
16
1.3
SSE
14
1.4
SSE
14
1.5
S
14
1.6
S
15
1.8
S
16
1.9
S
16
1.7
SSW
16
2
SSW
17
1.9
SSW
16
1.6
SSW
16
1.3
SSW
15
1
SSW
14
0.8
SSW
12
0.6
SSW
12
0.6
SSW
12
Energy kJ
138
201
372
328
1094
1068
668
788
868
1104
1545
1766
1455
2378
1896
1245
826
407
172
109
104
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
7
0.6
SE
12
0.3
SSE
20
0.8
SSE
16
0.6
ESE
8
0.7
S
16
0.1
SE
8
0.5
ESE
8
0.6
SSW
19
0.4
ESE
8
1.1
SSW
20
1.3
SSW
18
0.2
SSE
10
0.2
SSE
10
0.2
SSW
12
0.1
SE
10
0.3
SE
10
Energy kJ
17
86
75
310
42
267
2
37
283
20
961
1122
10
10
14
4
15
Swell 3
Height (m)
Direction
Period (s)
0.1
S
7
0.1
SW
6
0.4
ESE
8
0.1
SE
14
0.1
SE
13
0.2
SSE
9
0.1
SE
13
Energy kJ
1
2
22
8
7
8
7
Wind waves
Height (m)
Direction
Period (s)
0.7
S
4
0.5
S
3
0.5
S
3
0.8
S
4
Energy kJ
12
6
5
21
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
2
4
3
3
4
3
4
4
4
5
4
4
1
4
3
1
2
2
Distance (km)
0
19
31
0
19
62
0
43
62
13
43
62
103
62
104
103
104
104
3
62
62
Best forecast wave conditions in Kanagawa
Rating
(10 max)
2
2
3
4
4
3
4
4
4
2
Best forecast wave conditions in Japan
Rating
(10 max)
3
4
4
4
4
4
5
4
5
5
8
4
8
4
5
5
4
3
4
3
2
Header Global
Rating
(10 max)
8
7
5
5
9
8
9
9
5
6
6
5
8
6
5
5
5
9
9
7
4
  • 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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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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