Hanamizu River Surf Break

Lat Long: 35.29° N 139.26° E

Hanamizu River Surf Forecast and Surf Report

Issued: 8 pm 10 Jul 2026 (local time)

Forecast update in  hr  min

Today's Hanamizu River sea temperature is
23.7° C
1.3° 

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 10 Jul 2026:

  • Best quality surf: Saturday 11 Jul, 6AM (local time) - 7ft (2.1m), 16s period, SSW swell with glassy winds.
  • Most powerful swell: Saturday 11 Jul, 12PM (local time) - 7ft (2.1m), 17s period, SSW swell with 2,455 kJ wave energy.
  • Next surfable swell (1★+): Saturday 11 Jul, 6AM (local time) - 7ft (2.1m), 16s period with SSW 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 Saturday (Jul 11) at 6AM. The primary swell is predicted to be 2.1m and 16s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Hanamizu River in the next 16 days are 2.1m 17s and forecast to arrive on Saturday (Jul 11) at 12PM. 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+) 6AM (Sat 11th Jul)7ft (2.1m) 16s
Best Surf 6AM (Sat 11th Jul)7ft (2.1m) 16s
Most Powerful12PM (Sat 11th Jul)7ft (2.1m) 17s

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


Alright, let’s talk about Hanamizu River. This is a beach and sandbar setup, exposed to the south, and it’s a spot for the learners. Water temp is just what you’d expect for the season, nothing crazy.

Honestly, the next week and a half is flat-out grim. No surf worth mentioning right now. We do get a big slug of swell on Saturday the 11th and Sunday the 12th, with wave heights around 7ft and 6ft out of the SSW, but the wind is on it, cross or cross-onshore at 6 to 12 mph. It’s going to be a choppy mess. The combined swell energy is high, reading 2368 on Saturday morning, but it’s all quality-wrecking wind. Skip it unless you want a fight. The afternoons get worse.

Monday the 13th morning goes glassy with zero wind and only 3ft of SSW swell – energy drops to 268. It’s clean, but it’s tiny and gutless. And then the taps turn off. From Tuesday the 14th all the way to Wednesday the 22nd, we’re looking at knee-high junk. Energy readings barely crack double digits. It’s a brutal stretch, especially for a break that’s usually fairly consistent. These blank spells do happen around here, but it’s a bummer.

The one and only highlight is Thursday the 23rd. A solid SSW groundswell kicks in at 7ft, with a very long 15-second period. Energy jumps back up to 1733. The wind is a cross-offshore from the NNE at 12 mph, and it’s hammering down with heavy rain, so it’s not pretty, but the wave faces will be clean. That long-period swell can make a beach setup like this a bit straight, but the river mouth can handle it. Then Friday the 24th afternoon turns it on – an offshore breeze from the NNW at 9 mph, with 4ft of SSE swell. That’s a really good session for the end of July. After that, it’s back to small, onshore junk.

If you’re new to it, stay off Thursday the 23rd – that 7ft swell with a long period is for the experienced crowd. You might see a few other surfers out there on the good days. For the rest of us, it’s a holding pattern until that last week of July.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sat night. Warm (max 29°C on Mon afternoon, min 23°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Thu afternoon, min 24°C on Tue night). Wind will be generally light.

Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Fri
17
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
4
3
1
4
3
2
2
2
1
1
0
0
0
0
0
0
0
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)
2.1
SSW
16
2.1
SSW
16
2
SSW
17
1.8
SSW
16
1.7
SSW
16
1.6
SSW
16
1.1
SSW
14
0.9
SSW
13
0.9
SSW
12
0.6
SSW
11
0.6
SSW
11
0.5
SSW
10
0.5
SSW
10
0.4
SSW
10
0.7
S
9
0.3
SSW
9
0.2
SSW
9
0.8
S
4
0.5
S
4
0.2
SSW
8
0.6
S
3
Wave Graph
Metric surfscale
Energy kJ
2133
2368
2296
1697
1512
1169
487
249
254
82
93
62
56
36
83
16
7
18
7
6
7
Wind (km/h)
10
WSW
10
S
20
S
10
WSW
5
SW
15
SSW
15
WSW
0
NW
10
SSE
5
NW
5
ESE
10
S
5
SSW
10
SSE
15
S
5
SW
10
SE
10
S
5
W
10
SSE
15
S
Wind State
cross-off
cross-on
cross-on
cross-off
cross
cross
cross-off
glassy
cross-on
off
on
cross-on
cross
cross-on
cross-on
cross
on
cross-on
glassy
on
cross-on
High Tide
00:00AM1.38m
3:42PM1.29m
1:03AM1.41m
4:37PM1.39m
2:07AM1.45m
5:21PM1.45m
3:07AM1.51m
5:59PM1.48m
4:02AM1.56m
6:34PM1.48m
4:55AM1.57m
7:05PM1.46m
5:45AM1.54m
Low Tide
7:55AM0.23m
7:58PM1.11m
8:54AM0.09m
9:12PM1.12m
9:48AM-0.02m
10:07PM1.09m
10:37AM-0.09m
10:53PM1.03m
11:23AM-0.09m
11:35PM0.95m
12:05PM-0.03m
00:17AM0.86m
12:43PM0.08m
clear
part cloud
part cloud
rain showers
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
4:37
4:37
4:37
4:37
4:39
4:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
6:59
6:59
6:59
6:58
6:58
6:58
6:57
 mm
1
Temp °C
24
26
27
25
26
26
25
27
29
25
26
27
25
27
27
25
27
28
26
28
28
Feels °C
26
29
29
26
29
29
27
30
32
29
29
29
28
29
29
28
29
30
29
31
30
  • 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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