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Surf Forecasts:

Kuminatu surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 pm Tuesday 13 Jan 2026 JST
Forecast update in hr  min  s Forecast update imminent
Kuminatu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kuminatu sea temperature is
17.4° C
 (Which is normal for this time of year)

How big are the waves at Kuminatu today?

The current surf forecast for Kuminatu at 10PM is: 3.0m 8s primary swell from a Southwest direction and 0.2m 14s secondary swell from a East-northeast direction, 0.1m 12s secondary swell from a East direction (forecast issued at 08:00pm January 13). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (13 Jan)--
Afternoon (13 Jan)--
Evening (13 Jan)10ft (3.0m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tue
13
Wednesday
14
Thursday
15
Friday
16
6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM
Rating
(10 max)
0
0
!
3
3
1
1
2
2
1
1
1
1
1
0
0
0
0
0
0
1
2
2
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
SW
3
SW
3
SW
2.5
SW
2.1
SW
1.6
SW
1.3
SW
1.1
SW
1.1
SW
1
SW
0.9
SW
0.8
SW
0.6
SW
0.6
SW
0.9
SW
2.1
SW
2.3
SW
2.5
SW
2.5
SW
2.1
SW
2
SW
1.6
SW
1.3
SW
1.1
SW
Period(s) (?)889999999999887777778888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)69911521242108978345930020817915212988544079415485612645492453308188153
Wind
(km/h)
45
WSW
50
WSW
40
W
20
W
10
NW
20
NNE
15
N
5
NNW
0
E
10
NE
15
NNE
15
N
15
N
10
WNW
15
SW
30
WSW
50
WSW
45
WSW
45
WSW
45
W
25
W
10
N
10
NNE
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offglasscross-
off		cross-
off		offoffcross-
off		crosscrosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross
High Tide
/ height (m)
3:48AM
1.05
12:21PM
1.19
4:28AM
1.14
1:32PM
1.21
4:58AM
1.21
2:27PM
1.25
Low Tide
/ height (m)
7:37PM
0.39
6:47AM
1.01
8:34PM
0.28
8:36AM
1.01
9:19PM
0.17
9:37AM
0.98
Tue
13
Wednesday
14
Thursday
15
Friday
16
Sunrise-----6:47-------6:47-------6:46--
Sunset-------4:47-------4:49-------4:50
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C13111088891099876710111213141412121314
Feels °C (?)2-102413664310364134578910
  • 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 Kuminatu 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 Kuminatu at:
surf-forecast.com

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