Hanamizu River Surf Break

Lat Long: 35.29° N 139.26° E

Hanamizu River 48 hour detailed Surf Forecast

Issued: 2 am 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Hanamizu River sea temperature is
27.3° C
0.4° 

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


How big are the waves at Hanamizu River today (10 Aug):

  • Morning surf: Morning surf (10 Aug, local time) - 1.5ft (0.5m), 11s period with S swell.
  • Afternoon surf: Afternoon surf (10 Aug, local time) - 2ft (0.6m), 11s period with SSW swell.
  • Evening surf: Evening surf (10 Aug, local time) - 1.5ft (0.5m), 10s period with SSW swell.

The current surf forecast for Hanamizu River at 7AM is: 0.5m 10s primary swell from a South direction and 0.3m 11s secondary swell from a Southwest direction (forecast issued at 02:00am August 10). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (10 Aug)1.5ft (0.5m)11s
Afternoon (10 Aug)2ft (0.6m)11s
Evening (10 Aug)1.5ft (0.5m)10s

Table - waves today at Hanamizu River. (Swell directed towards the surf break)


Short Range Forecast

Heavy rain (total 34mm), heaviest during Tue night. Warm (max 29°C on Mon morning, min 23°C on Mon night). Wind will be generally light.

Monday
10
Tuesday
11
Wednesday
12
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
1
1
1
0
0
1
0
0
0
1
0
1
0
1
0
0
0
0
0
1
1
1
0
0
Swell
Height Map
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
SSW
11
0.6
S
10
0.6
S
10
0.5
S
11
0.5
S
11
0.6
SSW
11
0.5
SSW
11
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
11
0.5
SSW
11
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.4
SSW
10
Wave Graph
Metric surfscale
Energy kJ
88
77
75
62
59
93
64
59
58
58
58
63
64
64
63
59
58
58
58
58
59
59
58
40
Wind (km/h)
5
NNE
10
NNE
10
NNE
15
NE
10
ESE
5
SSW
5
E
15
NE
15
NE
10
NNE
20
N
5
WNW
20
SSW
10
WSW
15
SW
10
SSW
20
S
10
SSW
10
SE
5
NNE
5
NNW
5
NW
10
NNW
10
N
Wind State
glassy
cross-off
cross-off
cross
on
glassy
cross-on
cross
cross
cross-off
cross-off
glassy
cross-on
cross-off
cross
cross-on
cross-on
cross-on
on
glassy
glassy
off
cross-off
cross-off
High Tide
00:49AM1.35m
4:36PM1.39m
2:12AM1.41m
5:04PM1.45m
3:16AM1.49m
5:31PM1.47m
Low Tide
8:52AM0.13m
9:22PM1.10m
9:44AM0.04m
10:06PM0.99m
10:28AM0.00m
light rain
part cloud
clear
clear
part cloud
part cloud
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
heavy rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:58
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:36
 mm
1
1
4
16
5
2
3
2
1
Temp °C
25
25
25
27
29
28
28
26
25
25
23
26
27
26
24
23
23
24
23
23
24
25
25
25
Feels °C
28
27
27
28
31
32
31
26
26
27
22
28
27
28
25
25
23
26
24
25
26
26
25
25
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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