Kugenuma Rivermouth Surf Break
Lat Long: 35.31° N 139.47° E

Kugenuma Rivermouth 48 hour detailed Surf Forecast

Weather Forecast for Kugenuma Rivermouth

Issued: 8 am 07 Jun 2026 (local time)

Forecast update in  hr  min

Today's Kugenuma Rivermouth sea temperature is
21.2° C

1.1°C colder than average for this time of year

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 (07 Jun):

  • Morning surf: Morning surf (07 Jun, local time) - 0.5ft (0.2m), 7s period with SSW swell.
  • Afternoon surf: Afternoon surf (07 Jun, local time) - 0.5ft (0.1m), 10s period with SE swell.
  • Evening surf: Evening surf (07 Jun, local time) - 1.5ft (0.5m), 4s period with SE swell.

The current surf forecast for Kugenuma Rivermouth at 11AM is: 0.2m 7s primary swell from a South-southwest direction and 0.1m 10s secondary swell from a Southeast direction (forecast issued at 08:00am June 07). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (07 Jun)0.5ft (0.2m)7s
Afternoon (07 Jun)0.5ft (0.1m)10s
Evening (07 Jun)1.5ft (0.5m)4s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 35mm), heaviest during Sun night. Warm (max 23°C on Mon afternoon, min 19°C on Sun morning). Wind will be generally light.

Sunday
7
Monday
8
Tuesday
9
Wed
10
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
Rating
(10 max)
0
0
0
0
0
0
0
0
2
1
2
2
1
0
0
1
1
1
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
7
0.2
SSW
7
0.2
SSW
7
0.1
SE
10
0.1
SE
10
0.5
SE
4
0.4
SE
4
0.6
SSE
5
1.5
ESE
6
0.9
SE
7
0.8
S
9
0.9
SSE
8
0.8
SSE
8
0.7
SSE
8
0.6
S
8
1
SW
6
0.7
S
7
0.7
S
7
0.6
S
7
0.4
SW
7
0.3
SW
8
0.3
S
6
0.3
S
6
0.6
SSW
7
Wave Graph
Metric surfscale
Energy kJ
5
5
5
4
4
7
4
15
170
71
99
118
79
51
51
59
44
45
33
12
9
7
6
41
Wind (km/h)
10
NE
10
ENE
5
NNE
5
SE
5
ESE
10
ENE
15
ESE
15
E
20
NE
25
NNE
25
NNE
15
NNE
5
SE
10
S
10
SSW
15
N
20
NNE
10
NE
10
SE
20
S
10
S
5
SW
5
N
5
NE
Wind State
cross-off
cross-off
glassy
glassy
glassy
cross-off
cross
cross-off
off
off
off
off
glassy
cross-on
on
off
off
cross-off
cross-on
on
cross-on
on
glassy
off
High Tide
8:55AM1.08m
10:52PM1.26m
10:40AM1.00m
11:42PM1.27m
12:51PM1.00m
00:28AM1.28m
Low Tide
4:13AM0.87m
3:42PM0.49m
5:47AM0.75m
4:54PM0.64m
6:59AM0.60m
6:13PM0.77m
cloud
cloud
cloud
cloud
light rain
mod rain
heavy rain
mod rain
light rain
cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:26
4:26
4:26
4:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:54
6:54
6:55
 mm
2
9
12
8
2
2
Temp °C
18
19
20
20
19
19
19
19
19
20
22
23
22
21
21
20
19
20
21
21
21
21
21
21
Feels °C
18
19
21
21
21
20
19
19
18
18
20
23
24
22
22
19
17
20
21
20
21
23
23
22
Swell 1
Height (m)
Direction
Period (s)
0.2
SSW
7
0.2
SSW
7
0.2
SSW
7
0.1
SW
7
0.1
SW
7
0.1
SW
6
0.1
S
6
0.7
SE
6
0.9
SE
7
0.8
S
9
0.9
SSE
8
0.8
SSE
8
0.7
SSE
8
0.6
S
8
0.7
S
7
0.7
S
7
0.7
S
7
0.6
S
7
0.4
SW
7
0.3
S
6
0.3
S
6
0.3
S
6
0.6
SSW
7
Energy kJ
5
5
5
2
2
2
1
32
71
99
118
79
51
42
51
44
45
33
12
7
7
6
41
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
SW
6
0.1
SE
10
0.1
SE
10
0.5
SSW
10
0.6
SW
11
0.6
SSW
10
0.5
SW
10
0.4
SW
9
0.3
SW
9
0.2
SSW
9
0.2
SSW
9
0.4
SW
9
0.3
ESE
8
0.3
SSE
6
0.3
SW
8
0.2
SSW
8
0.2
SSW
7
0.2
E
8
Energy kJ
4
4
4
4
4
2
4
4
51
92
69
48
21
14
8
8
26
12
8
9
6
5
5
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
6
0.1
E
5
0.1
SE
10
0.1
SE
10
0.1
SW
6
0.1
SW
6
0.1
SW
15
0.6
SE
7
0.8
SSE
8
0.3
SSW
9
0.4
SSW
9
0.6
ESE
8
0.4
ESE
8
0.4
ESE
8
0.3
ESE
8
0.2
SSE
7
0.1
S
10
0.1
SE
9
Energy kJ
1
1
4
4
2
2
9
42
64
16
25
51
22
21
12
4
2
3
Wind waves
Height (m)
Direction
Period (s)
0.5
SE
4
0.4
SE
4
0.6
SSE
5
1.5
ESE
6
0.4
NNE
3
0.6
NNE
3
0.5
N
3
0.3
S
3
1
SW
6
0.3
NNE
2
0.4
SW
4
Energy kJ
7
4
15
170
3
8
6
1
59
1
4
Nearest Offshore or Glassy
Rating
(10 max)
4
4
3
3
1
1
1
4
4
3
4
3
2
2
1
1
1
1
1
1
1
1
2
1
Distance (km)
63
63
69
69
24
24
64
545
480
480
222
130
137
0
0
19
0
0
0
0
8
26
63
30
Best forecast wave conditions in Kanagawa
Rating
(10 max)
1
1
2
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
4
3
3
4
1
1
4
4
3
4
3
2
2
4
3
2
3
2
2
2
2
2
1
Header Global
Rating
(10 max)
9
9
9
6
5
6
7
8
8
8
9
8
7
6
7
5
7
5
9
9
9
9
6
6
  • 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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