Kugenuma Rivermouth surfForecast / Kanagawa / Japan

information circle48hr Weather and Surf, issued 2 pm Monday 27 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
19.0° C
(Which is normal for this time of year)

How big are the waves at Kugenuma Rivermouth today?

The current surf forecast for Kugenuma Rivermouth at 10PM is: 0.8m 7s primary swell from a South direction (forecast issued at 02:00pm April 27). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (27 Apr)--
Afternoon (27 Apr)2.5ft (0.8m)7s
Evening (27 Apr)2.5ft (0.8m)7s

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 Wed night. Warm (max 21°C on Tue afternoon, min 13°C on Wed night). Winds increasing (calm on Mon night, fresh winds from the SW by Tue night).

Mon
27
Tuesday
28
Wednesday
29
Thu
30
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
9 AM
Rating
(10 max)
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
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>
<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
SSE
6
0.8
SSE
7
0.9
S
7
0.8
S
7
0.7
S
7
0.6
SSW
7
0.5
S
7
0.6
SSW
7
0.8
SSW
4
1
SSW
4
1.3
SSW
5
1.4
SSW
6
1.4
SSW
6
1.4
SSW
6
1.6
SSW
6
1
S
6
0.8
SSW
6
0.9
SSW
6
0.9
SSW
6
0.5
SSW
6
0.5
S
6
0.4
SSW
6
0.3
SSW
6
0.2
ESE
7
Wave Graph
Metric surfscale
Energy kJ
34
62
77
60
51
43
26
37
17
38
71
114
126
124
179
81
53
60
63
20
18
12
7
5
Wind (km/h)
5
WNW
10
NE
20
NNE
15
NE
5
SSW
15
SSW
25
SSW
25
SSW
30
S
30
SSW
35
SW
35
SW
35
SW
20
SW
15
W
20
NNE
10
NE
15
ENE
20
ENE
25
ENE
30
NE
25
NE
25
NE
20
ENE
cross
off
off
cross-off
glassy
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
High Tide
2:13PM1.06m
2:48AM1.25m
3:12PM1.16m
3:08AM1.28m
3:58PM1.24m
3:27AM1.31m
Low Tide
8:25PM0.48m
9:10AM0.48m
9:07PM0.53m
9:39AM0.33m
9:42PM0.59m
rain showers
cloud
light rain
clear
clear
part cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
cloud
part cloud
light rain
mod rain
light rain
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
4:54
4:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:22
6:23
6:24
6:25
3
1
1
7
1
1
Temp °C
16
17
17
16
16
16
17
18
19
21
20
19
19
19
19
18
18
19
18
15
13
13
13
13
16
16
14
14
16
14
13
14
14
17
15
14
14
17
18
15
17
17
15
11
7
8
8
9
Swell 1
Height (m)
Direction
Period (s)
0.7
SSE
6
0.8
SSE
7
0.9
S
7
0.8
S
7
0.7
S
7
0.6
SSW
7
0.5
S
7
0.1
SE
7
0.1
SE
7
0.1
SE
7
0.2
ESE
8
1.1
SSW
6
1
S
6
0.8
SSW
6
0.6
S
6
0.6
SSW
6
0.5
SSW
6
0.5
S
6
0.4
SSW
6
0.3
SSW
6
0.2
SSW
6
Energy kJ
34
62
77
60
51
43
26
2
2
2
6
95
81
53
28
29
20
18
12
7
4
Swell 2
Height (m)
Direction
Period (s)
0.3
N
3
0.1
S
16
0.3
SE
7
0.2
ESE
7
0.1
SE
7
0.1
SE
11
0.1
SE
11
0.1
E
9
0.1
S
13
0.1
S
13
0.1
SE
8
0.1
SE
8
0.1
SE
8
Energy kJ
2
5
8
5
2
5
5
2
3
3
3
3
3
Swell 3
Height (m)
Direction
Period (s)
0.1
S
16
0.1
S
14
0.1
S
14
0.1
SE
12
0.1
S
14
0.1
S
14
0.1
SE
11
0.1
S
13
0.1
SE
11
0.1
S
13
0.1
E
7
0.1
SE
7
0.1
S
12
0.2
ESE
7
Energy kJ
5
4
4
5
4
4
5
3
5
3
1
2
3
5
Wind waves
Height (m)
Direction
Period (s)
0.3
NNW
3
0.2
NNE
3
0.6
SSW
7
0.8
SSW
4
1
SSW
4
1.3
SSW
5
1.4
SSW
6
1.4
SSW
6
1.4
SSW
6
1.6
SSW
6
0.9
SSW
6
0.9
SSW
6
0.4
ENE
2
0.5
NE
3
0.4
NE
3
0.5
NE
3
0.4
NE
3
Energy kJ
2
1
37
17
38
71
114
126
124
179
60
63
2
5
3
5
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
Distance (km)
24
0
0
0
2
26
84
85
837
2067
792
508
222
19
2
0
2
7
45
57
1078
1024
1024
1024
Best forecast wave conditions in Kanagawa
Rating
(10 max)
1
1
1
1
1
1
1
2
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
3
2
2
1
1
1
1
1
1
1
1
2
3
1
2
1
1
1
Header Global
Rating
(10 max)
8
7
6
6
6
6
5
5
5
5
5
5
5
6
8
9
9
8
7
8
8
6
6
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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