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 pm Thursday 19 Mar 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
15.3° C
 (Which is 1.6°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: 0.9m 8s primary swell from a South-southwest direction and 0.2m 14s secondary swell from a East direction (forecast issued at 02:00pm March 19). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (19 Mar)--
Afternoon (19 Mar)3.5ft (1.1m)8s
Evening (19 Mar)2.5ft (0.8m)8s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Thursday
19
Friday
20
Saturday
21
Sunday
22
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)
1
1
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
See all maps
Wave Height (m) & direction (?)
1.5
S
1.1
S
1
S
0.8
SSW
0.7
S
0.6
S
0.5
S
0.5
S
0.5
S
0.5
S
0.4
S
0.4
SE
0.3
SW
0.3
SW
0.2
S
0.2
S
0.1
SE
0.1
SE
0.1
SE
0.1
SE
0.1
SE
0.1
SE
0.1
SE
0.1
SE
Period(s) (?)88888877777677661817161616161616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2581451278560422725232415878331211101010101010
Wind
(km/h)
15
ENE
20
NE
30
NE
25
ENE
25
ENE
20
ENE
20
NE
20
NE
15
NE
15
NE
20
NE
15
NNE
15
NNE
25
NNE
15
NNE
5
SE
15
S
25
S
25
S
20
S
10
WSW
10
N
10
N
10
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offoffcross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		offoffoffoffglasscross-
on		onononcross-
on		cross-
off		cross-
off		off
High Tide
/ height (m)
5:31PM
1.37
5:29AM
1.38
6:08PM
1.35
5:50AM
1.41
6:47PM
1.30
6:13AM
1.43
Low Tide
/ height (m)
11:20AM
0.28
11:30PM
0.38
11:47AM
0.18
11:52PM
0.47
12:19PM
0.12
12:14AM
0.56
Thursday
19
Friday
20
Saturday
21
Sunday
22
Sunrise------5:47-------5:45-------5:43-
Sunset-5:52-------5:52-------5:52------
part cloud
part cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
part cloud
cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---1111111--------------
Temp. °C151715131110109109999767101112131211910
Feels °C (?)12139865656555501455689746
  • 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

Surf-Forecast Premium Launches 16-day Forecast and New, Improved Modelling
Ben Mondy

Surf-Forecast Premium Launches 16-day Forecast and New, Improved Modelling

Get 16% off your subscription with code 16DAYS—available for 16 days only, until March 25, 2026. Surf-Forecast Premium just got better. All paid subscribers will now see a full 16-day forecast, surf reports and wind and tide data for over 7,000 of the world's best surf spots. Premium members will also have access to a new high-resolution forecast model, which enhances our current forecasts by making them quicker and more accurate. That’s more lead time. More confidence. More chances to score g

Save Up to 20% on SIXT Rental Cars Worldwide – Exclusive Surf-Forecast Deal
travel
Surf Forecast

Save Up to 20% on SIXT Rental Cars Worldwide – Exclusive Surf-Forecast Deal

Surf road trips just got even better. Surf-Forecast users can now save up to 20% on SIXT rental cars worldwide during the promotional period until March 31, 2026. Whether you’re planning a legendary California road trip, chasing waves along Europe’s coasts, or exploring remote surf destinations, this exclusive SIXT offer helps you travel smarter and cheaper. And if you want some inspiration on where to go, check out our article Five Iconic Surf Road Trips. Click and get your SIXT discount

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