Kugenuma Rivermouth surfForecast / Kanagawa / Japan

information circle48hr Weather and Surf, issued 2 am Sunday 26 Apr 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
19.3° C
(Which is slightly warmer than usual)

How big are the waves at Kugenuma Rivermouth today?

The current surf forecast for Kugenuma Rivermouth at 8AM is: 0.4m 6s primary swell from a Southeast direction and 0.1m 7s secondary swell from a South direction (forecast issued at 02:00am April 26). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (26 Apr)1.5ft (0.4m)6s
Afternoon (26 Apr)1.5ft (0.4m)6s
Evening (26 Apr)1.5ft (0.4m)6s

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 25mm), heaviest during Sun night. Warm (max 20°C on Tue afternoon, min 14°C on Sun night). Winds increasing (calm on Sun morning, fresh winds from the N by Sun night).

Sunday
26
Monday
27
Tuesday
28
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
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.7
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SSE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.5
SE
6
0.6
SSE
6
0.5
SSE
6
0.5
S
6
0.6
S
6
0.6
S
7
0.5
S
7
0.5
S
7
0.6
S
7
0.9
S
4
1.1
S
5
1.2
SSW
5
1
SSW
5
Wave Graph
Metric surfscale
Energy kJ
35
8
9
9
9
9
14
9
9
10
10
19
25
21
16
27
34
24
24
33
24
52
64
52
Wind (km/h)
10
ENE
10
ENE
10
ENE
10
E
5
SSW
15
S
15
SSE
10
SE
10
NE
20
NNE
30
N
30
N
25
N
15
NNE
15
NNE
10
ENE
5
S
10
SSW
20
SSW
25
S
30
S
30
S
25
SW
25
SW
cross-off
cross-off
cross-off
cross-off
glassy
on
cross-on
cross
off
off
off
cross-off
off
off
off
cross-off
glassy
on
on
on
on
on
on
cross-on
High Tide
1:59AM1.17m
12:35PM0.97m
2:26AM1.21m
2:13PM1.06m
2:48AM1.25m
3:12PM1.16m
Low Tide
8:06AM0.80m
7:29PM0.45m
8:41AM0.64m
8:25PM0.48m
9:10AM0.48m
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
light rain
heavy rain
mod rain
light rain
light rain
cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:56
4:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:22
6:22
6:23
2
12
8
2
1
Temp °C
15
14
14
15
17
17
17
17
16
15
14
14
14
15
15
15
15
15
16
17
18
19
20
19
13
12
12
13
16
14
15
16
15
12
9
9
10
13
13
14
15
14
13
13
14
14
16
16
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SSE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.5
SE
6
0.6
SSE
6
0.5
SSE
6
0.5
S
6
0.6
S
6
0.6
S
7
0.5
S
7
0.5
S
7
0.1
SE
7
0.1
E
7
0.1
E
7
0.1
E
7
0.1
SE
7
Energy kJ
11
8
9
9
9
9
14
9
9
10
10
19
25
21
16
27
34
24
24
2
1
1
1
2
Swell 2
Height (m)
Direction
Period (s)
0.1
S
7
0.1
S
7
0.1
S
7
0.1
S
7
0.1
S
7
0.1
S
7
0.1
E
13
0.1
E
13
0.3
SE
6
0.2
ESE
7
0.2
ESE
6
0.2
ESE
7
0.1
SE
7
0.1
E
12
0.1
E
12
0.1
E
12
0.1
S
8
Energy kJ
1
1
1
1
1
1
3
3
6
5
4
4
2
3
3
3
1
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
11
0.1
S
6
0.1
S
6
0.1
S
6
0.1
S
16
0.1
S
16
0.2
ESE
7
0.1
S
14
0.1
S
14
0.1
S
14
0.1
SE
11
Energy kJ
5
1
1
1
5
5
5
4
4
4
5
Wind waves
Height (m)
Direction
Period (s)
0.7
SE
6
0.4
NNE
2
0.6
N
3
0.4
N
3
0.4
N
3
0.4
NNE
3
0.2
NNE
3
0.6
S
7
0.9
S
4
1.1
S
5
1.2
SSW
5
1
SSW
5
Energy kJ
35
2
8
4
2
3
1
33
24
52
64
52
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
64
45
57
85
24
85
45
45
45
57
480
69
61
88
30
57
24
61
84
85
85
85
795
2057
Best forecast wave conditions in Kanagawa
Rating
(10 max)
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
3
3
4
4
1
3
1
1
3
2
2
2
1
1
2
2
2
1
1
1
1
1
1
Header Global
Rating
(10 max)
4
5
5
8
5
7
6
5
7
7
9
9
8
7
5
6
6
6
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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