Hanamizu River Surf Break

Lat Long: 35.29° N 139.26° E

Hanamizu River 48 hour detailed Surf Forecast

Issued: 8 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Hanamizu River sea temperature is
25.4°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 (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 8ft (2.5m), 13s period with S swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 10ft (3.0m), 13s period with S swell.
  • Evening surf: Evening surf (21 Sep, local time) - 11ft (3.5m), 13s period with SSE swell.

The current surf forecast for Hanamizu River at 12PM is: 3.0m 13s primary swell from a South direction (forecast issued at 08:00am September 21). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Sep)8ft (2.5m)13s
Afternoon (21 Sep)10ft (3.0m)13s
Evening (21 Sep)11ft (3.5m)13s

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


Short Range Forecast

Heavy rain (total 117mm), heaviest during Mon afternoon. Warm (max 26°C on Mon night, min 21°C on Tue night). Winds decreasing (strong winds from the N on Mon afternoon, calm by Tue morning).

Monday
21
Tuesday
22
Wednesday
23
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)
2
2
2
1
!
!
4
2
1
1
1
1
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)
2.5
SSE
12
2.5
S
13
3
S
13
3
S
13
3.5
SSE
13
3.5
SSE
13
2.5
SSE
12
1.5
SSE
11
1
SSE
10
0.9
SSE
10
0.9
SSE
9
0.9
SSE
9
0.9
SSE
8
0.8
SSE
8
0.6
S
8
0.6
SSE
8
0.6
S
7
0.5
SSE
7
0.5
S
7
0.4
SSE
7
0.4
SSE
6
0.4
SSE
6
Wave Graph
Metric surfscale
Energy kJ
1841
2393
2870
3267
3993
4633
2151
515
190
159
138
129
115
90
45
44
40
31
24
15
15
15
Wind (km/h)
30
N
25
N
35
N
40
N
45
N
35
N
10
WNW
5
WSW
5
NNE
5
ESE
5
S
5
NNW
5
NE
10
ENE
15
ENE
15
NE
20
NNE
20
NE
15
NNE
5
N
10
N
10
N
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
glassy
glassy
glassy
glassy
cross
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
3:28PM1.22m
00:17AM1.13m
3:30PM1.28m
1:48AM1.21m
3:42PM1.35m
Low Tide
6:59AM0.53m
8:35PM1.07m
8:02AM0.46m
8:55PM0.95m
8:45AM0.39m
mod rain
mod rain
mod rain
heavy rain
heavy rain
heavy rain
rain showers
part cloud
cloud
part cloud
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:30
5:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:42
5:40
5:38
 mm
6
6
8
23
45
24
2
1
1
1
2
2
1
Temp °C
23
24
24
23
24
25
26
26
25
25
25
25
25
24
23
22
21
22
23
22
22
22
Feels °C
22
24
22
20
20
23
29
29
28
29
29
29
28
26
25
22
20
21
23
23
23
23
  • 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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