Hanamizu River Surf Break

Hanamizu River Surf Forecast and Surf Report

Lat Long: 35.29° N 139.26° E

Issued: 2 pm 07 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 7 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, 9AM (local time) - 7ft (2.1m), 17s period, SSW swell with 2,485 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 8 Jul, 12AM (local time) - 2.5ft (0.8m), 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 Wednesday (Jul 08) at 12AM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.8m and 16s. 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 9AM. 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+)12AM (Wed 8th Jul)2.5ft (0.8m) 16s
Best Surf 3AM (Wed 8th Jul)4.5ft (1.3m) 16s
Most Powerful 9AM (Sat 11th Jul)7ft (2.1m) 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’s cookin’ at Hanamizu River over the next couple of weeks. It’s a bit of a slow burn, so let’s get into it.

The water’s sittin’ at 75°F right now, which is just a touch cooler than average for this time of year – nothin’ to write home about, but you’ll notice it.

The opening days are pretty marginal, to be honest. We’ve got a long-period groundswell from the SSE rollin’ in on Tuesday afternoon, July 7th, with waves around 3ft. Problem is, the wind is light onshore, and the combined energy is only moderate at 447. Not exactly pumpin’. Wednesday the 8th sees the swell bump up a bit – 5ft in the morning, with a 16-second period from the SSE. The energy climbs to 1094, which is solidly moderate, but the wind is still onshore. It gets a little messy in the arvo as the wind swings S and picks up. Thursday and Friday are more of the same – onshore flow and that cross-on breeze messin’ up what could be a clean wave.

Now, into the weekend, we see the swell start to push up a little more. Saturday morning, July 11th, we’re lookin’ at 7ft from the SSW with a 17-second period. That’s a proper groundswell, energy is at 2485 – that’s strong energy, you’ll feel it. But here’s the rub: it’s still cross-on with a moderate breeze. For a sandbar setup like this, that long period swell and onshore wind is gonna make for some tricky, bumpy waves. This is more in the expert zone too – over 8ft is a big ask for the average punter. The afternoon gets worse.

The best chance for a half-decent session looks like Sunday morning, July 12th. The swell drops back to a more manageable 5ft from the SSW, still a solid 16-second period, and the wind backs off to a light cross-on breeze. The energy is still moderate at 1211. It won’t be perfect, but it’ll be the cleanest of a rough bunch. Don’t expect a crowd – it’s inconsistent here and the conditions aren’t gonna bring out the masses.

By Monday the 13th, the surf drops off a cliff. We’re looking at a week of tiny, weak waves with poor conditions. There’s a brief pulse of 5ft from the SSE on Wednesday, July 15th, but the wind is already on it, choppin’ things up. After that, it’s flat city – consistent energy readings in the teens and twenties, with nothing but onshore breeze and garbage surf until we run out of forecast. That’s a solid 7 to 8 day gap of nothin’ to ride.

So, for the entire 16-day window, the only real standouts are Saturday the 11th if you’re a masochist and Sunday the 12th if you’re patient. The swell’s there, the direction’s okay for the SE optimum, but the wind is the villain in this story. It’s a beach break with onshore flow, and for the bigger days, it’ll be more interesting for the kite crew than paddle surfers.

Stay tuned, though – forecasts change, and it doesn’t stay this quiet forever.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Sun afternoon. Warm (max 27°C on Sat afternoon, min 24°C on Fri night). Wind will be generally light.

Tue
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
2
2
2
2
2
0
2
3
1
4
2
0
4
2
1
2
0
0
1
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)
0.9
SSE
15
0.8
SSE
16
1.4
SSE
16
1.5
SSE
16
1.6
SSE
14
1.4
SSE
14
1.4
SSE
14
1.6
S
15
1.8
S
15
1.9
S
16
2.1
SSW
16
2.1
SSW
17
1.9
SSW
16
1.7
SSW
16
1.6
SSW
16
1.3
SSW
15
0.9
SSW
14
0.8
SSW
12
0.7
SSW
12
0.6
SSW
11
0.5
SSW
11
Wave Graph
Metric surfscale
Energy kJ
372
328
1094
1055
980
788
777
1104
1390
1834
2107
2485
1943
1512
1169
693
290
169
123
97
66
Wind (km/h)
10
ESE
5
E
5
ESE
10
S
5
SW
10
SSE
15
S
10
SW
10
SSE
20
S
10
WSW
15
S
20
S
10
WSW
10
S
15
S
10
NW
5
SSE
5
SSE
10
WSW
5
SE
Wind State
on
glassy
on
cross-on
cross
cross-on
cross-on
cross
on
cross-on
cross-off
cross-on
cross-on
cross-off
cross-on
cross-on
off
cross-on
on
cross-off
on
High Tide
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
3:07AM1.51m
Low Tide
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
10:07PM1.09m
10:37AM-0.09m
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
thunderstorm
thunderstorm
part cloud
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:33
4:35
4:35
4:35
4:37
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
6:59
6:59
6:59
6:58
 mm
2
3
Temp °C
25
23
23
25
23
25
25
24
25
25
24
26
27
25
27
27
26
26
26
26
28
Feels °C
26
25
25
25
25
26
26
27
27
26
26
28
27
28
30
29
29
30
30
29
31
Swell 1
Height (m)
Direction
Period (s)
0.9
SSE
15
0.9
SSE
14
1.4
SSE
16
1.5
SSE
16
1.6
SSE
14
1.4
SSE
14
1.4
SSE
14
1.6
S
15
1.8
S
15
1.9
S
16
2.1
SSW
16
2.1
SSW
17
1.9
SSW
16
1.7
SSW
16
1.6
SSW
16
1.3
SSW
15
0.9
SSW
14
0.8
SSW
12
0.7
SSW
12
0.6
SSW
11
0.5
SSW
11
Energy kJ
372
328
1094
1055
980
788
777
1104
1390
1834
2107
2485
1943
1512
1169
693
290
169
123
97
66
Swell 2
Height (m)
Direction
Period (s)
0.3
SSE
20
0.8
SSE
16
0.8
S
18
0.4
ESE
8
0.4
ESE
8
0.7
S
18
0.5
SSW
19
0.3
ESE
8
0.7
SE
10
0.4
SE
10
0.2
SSE
10
0.2
SSE
10
0.1
SE
10
0.4
S
4
0.1
SE
9
0.2
SSE
12
Energy kJ
75
310
422
22
26
304
207
12
100
35
10
9
4
5
3
15
Swell 3
Height (m)
Direction
Period (s)
0.4
ESE
8
0.1
SE
14
0.2
ESE
9
0.1
SE
13
0.1
SE
13
0.3
SE
10
0.1
SE
12
0.2
SSE
15
Energy kJ
24
7
8
7
7
14
6
21
Wind waves
Height (m)
Direction
Period (s)
0.8
S
4
0.6
SSW
4
0.8
S
4
0.8
SSW
4
0.4
SSW
4
0.5
S
4
0.4
SSW
4
0.2
S
3
Energy kJ
19
12
19
20
6
6
4
1
Nearest Offshore or Glassy
Rating
(10 max)
2
2
3
4
3
4
4
4
4
4
4
4
4
4
5
4
2
3
1
1
2
Distance (km)
19
0
23
43
3
43
104
12
77
104
0
104
104
0
112
104
0
43
33
0
77
Best forecast wave conditions in Kanagawa
Rating
(10 max)
2
4
3
4
4
4
4
4
4
2
3
3
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
5
4
5
4
4
5
5
5
8
9
9
9
5
5
4
4
4
4
3
2
Header Global
Rating
(10 max)
5
5
9
8
7
7
7
6
6
6
5
5
5
5
5
6
8
6
5
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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