Kugenuma Rivermouth surfForecast / Kanagawa / Japan

information circle48hr Weather and Surf, issued 2 am Thursday 14 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Kugenuma Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kugenuma Rivermouth sea temperature is
18.9° C
(Which is 1.3°C colder than average for this time of year)

How big are the waves at Kugenuma Rivermouth today?

The current surf forecast for Kugenuma Rivermouth at 7AM is: 0.4m 10s primary swell from a Southeast direction and 0.1m 9s secondary swell from a Southeast direction (forecast issued at 02:00am May 14). The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (14 May)1ft (0.3m)10s
Afternoon (14 May)0.5ft (0.2m)10s
Evening (14 May)1ft (0.3m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 11mm), heaviest on Thu afternoon. Warm (max 22°C on Thu morning, min 15°C on Thu night). Wind will be generally light.

Thursday
14
Friday
15
Saturday
16
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 MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.5
SE
10
0.4
SE
10
0.4
SE
10
0.3
ESE
10
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.3
SE
10
0.2
ESE
11
0.3
SE
11
0.3
SE
8
0.3
SE
9
0.1
SE
12
0.3
SE
8
0.2
ESE
8
0.2
ESE
8
0.4
SE
8
0.3
SE
8
0.3
SE
7
0.3
SE
7
0.3
ESE
9
0.4
SE
7
0.5
SE
7
0.5
SE
7
Wave Graph
Metric surfscale
Energy kJ
47
24
24
19
9
9
10
16
11
18
10
12
5
11
7
6
15
9
9
8
17
17
26
27
Wind (km/h)
10
NNE
5
N
5
N
10
ENE
10
ESE
20
SSE
5
SSE
25
NE
20
NE
20
NE
20
NE
20
NE
15
NE
10
E
15
SE
10
E
5
NNE
10
NNE
10
NNE
10
NE
5
ESE
10
S
15
S
5
S
off
cross-off
glassy
cross-off
cross
cross-on
glassy
cross-off
off
off
off
off
cross-off
cross-off
cross-on
cross-off
off
off
off
off
glassy
cross-on
cross-on
glassy
High Tide
2:47AM1.31m
4:20PM1.26m
3:10AM1.35m
5:00PM1.29m
3:32AM1.40m
5:37PM1.31m
Low Tide
9:05PM0.69m
9:39AM0.21m
9:39PM0.76m
10:09AM0.09m
10:07PM0.82m
10:38AM0.01m
clear
part cloud
clear
clear
clear
clear
thunderstorm
light rain
rain showers
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:39
4:37
4:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:38
5
4
2
Temp °C
19
18
18
20
22
20
20
16
16
15
15
15
18
21
19
17
17
16
16
19
21
22
21
19
18
17
18
19
20
17
20
12
13
12
12
12
15
18
17
17
17
15
15
17
20
20
20
20
Swell 1
Height (m)
Direction
Period (s)
0.5
SE
10
0.4
SE
10
0.4
SE
10
0.3
ESE
10
0.2
SSE
8
0.2
SSE
7
0.2
SSE
6
0.3
SE
10
0.2
ESE
11
0.3
SE
11
0.3
SE
8
0.3
SE
9
0.1
SE
10
0.3
SE
8
0.2
ESE
8
0.2
ESE
8
0.4
SE
8
0.3
SE
8
0.3
SE
7
0.3
SE
7
0.3
SE
7
0.4
SE
7
0.5
SE
7
0.5
SE
7
Energy kJ
47
24
24
19
6
5
4
16
11
18
10
12
4
11
7
6
15
9
9
8
7
13
26
27
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
11
0.1
SE
10
0.1
SE
10
0.2
SSE
8
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.1
E
9
0.2
ESE
4
0.2
SSE
6
0.1
SE
11
0.1
SE
11
0.1
SE
6
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
10
0.2
SSE
10
0.3
SE
10
Energy kJ
5
4
4
6
9
9
10
2
1
4
5
5
2
5
5
5
5
5
5
5
5
4
9
14
Swell 3
Height (m)
Direction
Period (s)
0.1
S
9
0.1
S
7
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
E
9
0.1
S
7
0.2
SSE
6
0.1
S
7
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
S
7
0.1
S
7
0.1
S
7
0.3
ESE
9
0.3
ESE
9
0.2
E
9
0.1
E
10
Energy kJ
2
1
4
4
4
2
1
4
1
6
6
5
1
1
1
17
17
6
2
Wind waves
Height (m)
Direction
Period (s)
0.2
SSE
3
0.3
ESE
2
0.4
NE
3
0.4
NE
3
0.4
NE
3
0.4
NE
3
0.4
NE
3
0.2
ENE
2
0.3
ESE
2
0.3
ESE
4
Energy kJ
1
1
2
3
3
3
2
1
1
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
2
1
3
2
2
1
1
1
2
1
1
1
1
1
1
1
1
Distance (km)
2
30
30
45
24
64
30
222
140
57
140
140
2809
64
64
30
30
24
30
57
24
45
45
30
Best forecast wave conditions in Kanagawa
Rating
(10 max)
1
1
1
1
1
2
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
2
1
1
2
2
3
2
2
1
1
2
2
3
3
2
1
1
2
3
Header Global
Rating
(10 max)
7
9
9
9
9
9
4
5
5
4
5
4
5
5
5
5
5
5
5
5
5
5
5
5
  • 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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