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Surf Forecasts:

Kugenuma Rivermouth surfForecast / Kanagawa / Japan

information circle48hr Weather and Surf, issued 2 am Thursday 23 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
18.7° 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 9AM is: 0.4m 6s primary swell from a Southeast direction and 0.1m 12s secondary swell from a Southeast direction (forecast issued at 02:00am April 23). The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (23 Apr)1.5ft (0.4m)6s
Afternoon (23 Apr)1.5ft (0.4m)6s
Evening (23 Apr)0.5ft (0.2m)9s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast

Heavy rain (total 34mm), heaviest during Thu night. Very mild (max 18°C on Thu morning, min 13°C on Thu night). Winds decreasing (strong winds from the N on Thu night, light winds from the ENE by Sat night).

Thursday
23
Friday
24
Saturday
25
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)
0.5
S
5
0.4
SSE
6
0.4
SSE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.2
E
9
0.2
E
9
0.2
E
9
0.2
E
9
0.2
SSE
6
0.5
S
8
0.5
SSW
8
0.6
S
8
0.6
S
8
0.5
S
8
0.5
S
8
0.5
S
8
0.4
S
8
0.4
S
8
0.3
SSE
7
0.4
SE
7
0.2
SSE
6
0.5
SE
5
Wave Graph
Metric surfscale
Energy kJ
15
12
15
10
11
11
7
7
7
7
5
30
35
51
51
35
33
31
19
18
9
11
4
13
Wind (km/h)
15
WSW
5
WNW
10
NNE
10
N
10
NNW
10
NNE
10
NE
35
N
40
N
35
N
25
NNE
25
NE
20
ENE
15
E
15
SE
15
E
15
ENE
20
ENE
25
NE
20
NE
15
NE
10
E
20
ESE
10
E
Wind State
cross-on
glassy
off
off
cross-off
off
cross-off
off
off
off
off
off
cross-off
cross-off
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
High Tide
9:29PM1.09m
7:02AM1.26m
11:16PM1.07m
7:46AM1.13m
1:20AM1.12m
9:44AM0.99m
Low Tide
1:07AM0.98m
2:58PM0.24m
2:10AM1.05m
4:28PM0.36m
7:12AM0.97m
6:12PM0.42m
part cloud
cloud
cloud
cloud
light rain
light rain
mod rain
mod rain
mod rain
light rain
light rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
5:01
—
—
—
—
—
—
—
4:58
—
—
—
—
—
—
—
4:58
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
6:20
—
—
—
—
—
—
—
6:21
—
—
—
—
—
—
—
6:22
—
 mm
—
—
—
—
1
4
9
10
6
3
1
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
18
18
18
18
16
15
14
14
14
13
14
15
17
18
17
15
15
14
13
14
15
17
15
15
Feels °C
16
18
15
16
14
14
13
8
7
7
10
10
12
15
14
12
12
9
7
9
11
13
10
12
Swell 1
Height (m)
Direction
Period (s)
0.5
S
5
0.4
SSE
6
0.4
SSE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.3
SE
6
0.2
SSE
6
0.2
SSE
6
0.2
SSE
5
0.2
SSE
6
0.5
S
8
0.5
SSW
8
0.6
S
8
0.6
S
8
0.5
S
8
0.5
S
8
0.5
S
8
0.4
S
8
0.4
S
8
0.3
SSE
7
0.4
SE
7
0.2
SSE
6
0.3
SE
6
Energy kJ
15
12
15
10
11
11
6
4
3
3
3
30
35
51
51
35
33
31
19
18
9
11
4
6
Swell 2
Height (m)
Direction
Period (s)
0.3
SE
8
0.3
SE
8
0.2
ESE
8
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
S
8
0.1
SE
12
0.3
SSE
8
0.1
SE
12
0.1
SE
12
0.3
SE
4
0.1
SE
12
—
0.1
SE
12
0.1
SE
12
0.1
SW
8
0.1
SW
8
0.1
SW
7
0.1
S
7
Energy kJ
9
9
6
6
6
6
6
6
6
6
1
5
14
5
5
2
5
—
5
5
2
2
2
1
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
E
10
—
0.2
E
9
0.2
E
9
0.2
E
9
0.2
E
9
0.2
E
9
0.1
SE
12
—
0.1
E
6
0.1
E
6
0.2
E
8
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.2
E
9
0.1
E
12
0.1
SE
11
0.1
S
7
0.1
E
11
Energy kJ
7
7
6
2
—
7
7
7
7
7
5
—
1
1
5
5
5
5
5
6
3
5
1
2
Wind waves
Height (m)
Direction
Period (s)
—
—
—
—
—
—
—
0.3
NNE
2
0.8
NNE
3
0.8
NNE
4
0.8
NNE
4
0.6
NNE
4
0.4
NE
3
0.2
ENE
3
0.3
ESE
2
0.5
ESE
4
0.2
ESE
4
—
0.3
E
2
0.3
E
2
—
0.4
ESE
5
—
0.5
SE
5
Energy kJ
—
—
—
—
—
—
—
1
13
15
17
8
4
1
1
8
1
—
1
1
—
11
—
13
Nearest Offshore or Glassy
Sakawa River
Kanagawa
Kurihama
Kanagawa
Kurihama
Kanagawa
Kurihama
Kanagawa
Mera
Chiba
Mera
Chiba
Mera
Chiba
Akabane Long Beach
Shizuoka
Akabane Long Beach
Shizuoka
Omaezaki
Shizuoka
Suruga Bay
Shizuoka
Suruga Bay
Shizuoka
Suruga Bay
Shizuoka
Rock Island
Kanagawa
Sakawa River
Kanagawa
Keta Reef Oshima
Izu Islands
Uchiboso
Chiba
Suruga Bay
Shizuoka
Omaezaki
Shizuoka
Nunoshima
Shikoku
Gomoda
Shikoku
Hashikui Bay
Shikoku
Lena
Kyu Shu
Shida
Chiba
Rating
(10 max)
1
1
1
1
1
1
1
3
2
1
1
2
2
1
1
1
1
1
1
1
3
2
5
2
Distance (km)
30
24
24
24
57
57
57
222
222
140
130
130
130
8
30
64
45
130
140
480
463
484
804
85
Best forecast wave conditions in Kanagawa
Sakawa River
Sakawa River
Sakawa River
Kurihama
zushi Marina
Sakawa River
Rating
(10 max)
1
1
1
1
1
1
Best forecast wave conditions in Japan
Niyodo Rivermouth
Shikoku
Big Ben
Chiba
Niyodo Rivermouth
Shikoku
Kaiser's (Hachijojima Island)
Izu Islands
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Akabane Long Beach
Shizuoka
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Akabane Long Beach
Shizuoka
Akabane Long Beach
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Hashikui Bay
Shikoku
Unnamed
Kyu Shu
Niyodo Rivermouth
Shikoku
Rating
(10 max)
2
2
2
2
2
2
3
3
2
2
2
2
2
2
2
2
2
3
2
2
3
2
5
4
Header Global
Bruces Beauties
South Africa
Bruces Beauties
South Africa
Fish Boma
South Africa
Sea Vista
South Africa
Fish Boma
South Africa
Haga-Haga
South Africa
Fish Boma
South Africa
Lebu
Chile
Bocock's Bay
Namibia
Bocock's Bay
Namibia
Achadas Da Cruz
Portugal
Lebu
Chile
Lebu
Chile
Lebu
Chile
Papatowai
New Zealand
Lebu
Chile
Lebu
Chile
Lebu
Chile
Trial Harbour
Australia
Bali Village
Indonesia
Bali Village
Indonesia
Etang-Sale
Reunion
Buchupureo
Chile
Bali Village
Indonesia
Rating
(10 max)
9
9
8
9
6
6
5
5
5
5
4
5
5
5
6
5
5
5
5
4
4
5
5
4
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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