Hanamizu River Surf Break

Lat Long: 35.29° N 139.26° E

Hanamizu River 48 hour detailed Surf Forecast

Issued: 2 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Hanamizu River sea temperature is
26.8° C
0.2° 

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 (20 Aug):

  • Morning surf: Morning surf (20 Aug, local time) - 0.5ft (0.2m), 6s period with SSE swell.
  • Afternoon surf: Afternoon surf (20 Aug, local time) - 0.5ft (0.2m), 9s period with SSW swell.
  • Evening surf: Evening surf (20 Aug, local time) - 0.5ft (0.2m), 8s period with SSW swell.

The current surf forecast for Hanamizu River at 6AM is: 0.1m 10s primary swell from a Southeast direction and 0.2m 6s secondary swell from a South-southeast direction (forecast issued at 02:00am August 20). The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (20 Aug)0.5ft (0.2m)6s
Afternoon (20 Aug)0.5ft (0.2m)9s
Evening (20 Aug)0.5ft (0.2m)8s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Sat night. Warm (max 28°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
SSW
8
0.2
SSE
6
0.2
SSE
6
0.2
SSE
6
0.2
SSE
6
0.2
SSW
9
0.2
SSW
9
0.2
SSW
8
0.2
S
10
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.7
S
9
0.8
S
9
0.9
S
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
10
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
Wave Graph
Metric surfscale
Energy kJ
6
4
4
4
4
8
8
7
8
25
27
27
78
101
127
26
35
36
34
32
32
32
32
32
Wind (km/h)
5
SW
5
WSW
0
S
10
SSE
10
SSE
15
S
10
S
10
SSW
10
SSW
5
WSW
5
W
10
SSE
20
SSE
20
SSE
15
S
10
SW
10
WSW
5
WSW
5
W
5
S
15
SSE
15
S
5
SSW
10
WNW
Wind State
glassy
glassy
glassy
on
on
cross-on
cross-on
cross-on
cross
cross-off
glassy
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
glassy
glassy
cross-on
cross-on
cross
cross-off
High Tide
10:11AM1.02m
8:20PM1.36m
8:48PM1.29m
Low Tide
3:21AM0.48m
1:46PM0.94m
4:30AM0.52m
6:10AM0.53m
clear
clear
clear
part cloud
part cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:05
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:27
6:24
6:23
 mm
1
1
1
2
Temp °C
26
25
25
26
27
27
26
26
26
25
25
27
27
27
27
26
26
26
26
27
27
28
28
27
Feels °C
30
29
29
29
29
29
29
29
30
28
29
30
29
29
30
29
29
30
30
31
29
31
32
31
  • 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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Hanamizu River surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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