Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Kugenuma Rivermouth surfForecast / Kanagawa / Japan

information circle48hr Weather and Surf, issued 2 am Thursday 08 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
16.2° C
 (Which is 1.5°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: 0.8m 6s primary swell from a Southwest direction and 0.1m 5s secondary swell from a East direction (forecast issued at 02:00am January 08). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (08 Jan)3ft (0.9m)6s
Afternoon (08 Jan)3ft (0.9m)6s
Evening (08 Jan)0.5ft (0.2m)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
Thursday
08
Friday
09
Saturday
10
0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM
Rating
(10 max)
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.1
S
1.4
SW
0.8
SW
0.9
SW
1.1
SW
0.9
SW
0.5
SW
0.2
SSW
0.2
SSW
0.1
SW
0.1
E
0.1
SW
0.1
SW
0.1
E
0.1
E
0.1
E
0.1
SW
0.3
SW
0.6
SW
0.6
SW
1.3
SW
1.8
SW
1.6
SW
2.1
SSW
Period(s) (?)13566666858108810111142445666
Wave
Graph
(?)Metric surfscale
Energy kJ (?)398385485561773333322211101177195159366
Wind
(km/h)
10
W
10
W
15
W
10
WNW
10
NNW
30
NNE
35
NNE
30
NNE
25
N
20
N
10
N
0
SW
15
S
20
S
20
SSW
10
SW
10
W
10
WNW
15
WSW
25
SW
40
SW
40
SW
35
SW
40
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		crosscrosscrosscross-
off		offoffoffoffoffoffglassononononcrosscrosscross-
on		cross-
on		cross-
on		cross-
on		onon
High Tide
/ height (m)
8:08AM
1.37
7:28PM
1.26
8:40AM
1.36
8:26PM
1.15
9:14AM
1.35
Low Tide
/ height (m)
1:20AM
0.20
1:55PM
0.72
1:54AM
0.34
2:51PM
0.65
2:29AM
0.50
3:59PM
0.59
Thursday
08
Friday
09
Saturday
10
Sunrise---6:50-------6:50-------6:50----
Sunset-----4:45-------4:45-------4:46--
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C87771095544347889876711131212
Feels °C (?)432360-5-4-4-3-21222544101343
  • 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

Latest Updates

The World’s Most Inconsistent Waves
Ben Mondy

The World’s Most Inconsistent Waves

Huntington, Dribbleton, Virginia, Holland and the Superbank! We recently had a look at the world’s most consistent waves. This was based on the combination of swells and wind directed at 7,000 surf spots, as compiled from our data since 2006. Those stats, represented in easy-to-read graphics, are located under each wave’s spot guides, with historical swell and wind breakdowns available by month, season, and year. There is also an offshore filter, which shows how often the swells come with clean

Read more

Read more

Discover more articles and updates in the Greenroom.

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

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest