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Surf Forecasts:

Kugenuma Rivermouth surfForecast / Kanagawa / Japan

information circle48hr Weather and Surf, issued 2 pm Monday 12 Jan 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
16.0° C
 (Which is 1.4°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 8PM is: 1.6m 8s primary swell from a Southwest direction and 0.4m 5s secondary swell from a South-southwest direction, 0.2m 9s secondary swell from a South-southwest direction (forecast issued at 02:00pm January 12). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (12 Jan)--
Afternoon (12 Jan)1ft (0.3m)9s
Evening (12 Jan)5ft (1.6m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM
Rating
(10 max)
0
0
0
1
0
0
0
0
0
0
0
0
0
2
4
1
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
SW
0.3
SW
0.2
SSW
1.6
SW
0.7
SSW
1
SW
1.3
SW
1.8
SW
2.1
SW
2.1
SW
2.4
SW
2.3
SW
1.9
SW
3
SW
2.2
SW
0.9
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.3
SW
0.2
SSW
0.2
SSW
0.1
SE
Period(s) (?)1099876666678899101099999510
Wave
Graph
(?)Metric surfscale
Energy kJ (?)24148284417113623635236352657442912148361372322222213844
Wind
(km/h)
10
SSW
10
S
5
S
10
WSW
20
W
15
W
35
WSW
45
SW
50
WSW
50
SW
55
WSW
50
WSW
35
WSW
15
W
5
ESE
15
ENE
15
ESE
10
SE
5
SE
5
NNE
20
N
15
N
10
N
5
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		glasscross-
on		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crossglasscross-
off		crosscrosscrossglassoffoffoffglass
High Tide
/ height (m)
10:33AM
1.30
3:44AM
1.00
11:23AM
1.28
4:39AM
1.13
12:22PM
1.27
5:07AM
1.22
Low Tide
/ height (m)
6:43PM
0.41
4:20AM
1.00
7:53PM
0.30
7:28AM
1.09
8:49PM
0.18
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Sunrise-------6:50-------6:50-------6:50
Sunset-4:49-------4:50-------4:51------
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
cloud
Rain (mm)
------------------------
Temp. °C67776681013131210877788997667
Feels °C (?)123200-1-1110-2-113133561024
  • 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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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kugenuma Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Kugenuma Rivermouth at:
surf-forecast.com

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