Kugenuma Rivermouth Surf Break

Lat Long: 35.31° N 139.47° E

Kugenuma Rivermouth 48 hour detailed Surf Forecast

Issued: 2 am 10 Nov 2026 (local time)

Forecast update in  hr  min

Today's Kugenuma Rivermouth sea temperature is
22.0°C
0.3° 

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


How big are the waves at Kugenuma Rivermouth today (10 Nov):

  • Morning surf: Morning surf (10 Nov, local time) - 2ft (0.6m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (10 Nov, local time) - 2ft (0.6m), 9s period with SE swell.
  • Evening surf: Evening surf (10 Nov, local time) - 1.5ft (0.4m), 9s period with SE swell.

The current surf forecast for Kugenuma Rivermouth at 6AM is: 0.6m 9s primary swell from a Southeast direction and 0.1m 13s secondary swell from a South direction (forecast issued at 02:00am November 10). An open ocean swell of 0.6m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (10 Nov)2ft (0.6m)9s
Afternoon (10 Nov)2ft (0.6m)9s
Evening (10 Nov)1.5ft (0.4m)9s

Table - waves today at Kugenuma Rivermouth. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 7mm), mostly falling on Tue morning. Very mild (max 17°C on Thu afternoon, min 10°C on Tue morning). Wind will be generally light.

Tuesday
10
Wednesday
11
Thursday
12
Fri
13
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
12 AM
3 AM
6 AM
Rating
(10 max)
0
0
0
0
0
1
0
0
1
1
1
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SE
8
0.5
SE
8
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.4
SE
9
0.3
SSW
13
0.4
SSW
12
0.4
SSW
11
0.4
SSW
11
0.4
SSW
11
0.4
SSW
11
0.4
SSW
11
0.3
SSW
11
0.3
SSW
10
0.3
S
10
0.3
S
10
0.3
S
9
0.2
S
9
0.2
S
9
0.2
S
9
0.2
S
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
Wave Graph
Metric surfscale
Energy kJ
34
35
47
50
50
52
53
31
32
48
43
40
40
40
38
22
20
18
17
15
6
6
6
6
7
7
6
Wind (km/h)
25
NNE
25
NNE
30
NE
30
NNE
30
NNE
25
NE
15
NE
20
NE
20
NE
20
NE
20
NNE
25
NNE
15
NE
10
E
5
ESE
0
SSE
0
WSW
5
NW
5
NNW
5
NW
10
SSW
20
SSW
20
SW
20
WSW
15
WSW
15
W
10
NW
Wind State
off
off
off
off
off
off
cross-off
cross-off
off
off
off
off
off
cross-off
cross
glassy
glassy
glassy
cross-off
glassy
on
on
cross-on
cross-on
cross-on
cross-on
cross-off
High Tide
5:42AM1.43m
4:10PM1.56m
6:19AM1.42m
4:38PM1.58m
6:58AM1.40m
5:09PM1.58m
Low Tide
10:47PM0.12m
10:42AM0.96m
11:18PM0.06m
11:06AM1.00m
11:51PM0.05m
11:34AM1.03m
00:28AM0.07m
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
6:11
—
—
—
—
—
—
—
6:11
—
—
—
—
—
—
—
6:13
—
—
—
—
—
—
—
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
4:39
—
—
—
—
—
—
—
4:38
—
—
—
—
—
—
—
4:37
—
—
—
—
4:37
 mm
1
3
2
2
4
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
12
12
11
10
10
11
12
12
11
11
10
10
12
13
14
14
14
14
13
13
15
17
17
16
16
16
15
Feels °C
7
7
5
4
4
5
8
7
5
5
4
3
7
9
11
12
12
12
11
11
12
13
12
13
13
13
13
  • 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
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