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Surf Forecasts:

Amatu surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 pm Tuesday 13 Jan 2026 JST
Forecast update in hr  min  s Forecast update imminent
Amatu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Amatu sea temperature is
17.4° C
 (Which is normal for this time of year)

How big are the waves at Amatu today?

The current surf forecast for Amatu at 4PM is: 3.0m 8s primary swell from a Southwest direction and 0.2m 14s secondary swell from a East-northeast direction (forecast issued at 02:00pm January 13). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (13 Jan)--
Afternoon (13 Jan)10ft (3.0m)7s
Evening (13 Jan)10ft (3.0m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
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
0
!
3
3
2
2
2
2
2
1
1
1
1
0
0
0
0
0
0
2
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
SW
3
SW
3
SW
3
SW
3
SW
2.5
SW
2.1
SW
1.8
SW
1.5
SW
1.2
SW
1.1
SW
1.1
SW
0.9
SW
0.8
SW
0.6
SW
0.6
SW
0.6
SW
1.9
SW
2.3
SW
2.5
SW
2.5
SW
2.4
SW
2.4
SW
2.1
SW
Period(s) (?)77889910109999998887777888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)66782198412081270106081755436723518318313593574148296485612720664699557
Wind
(km/h)
50
SW
50
WSW
45
WSW
45
WSW
35
W
20
W
10
NW
20
N
10
N
0
N
5
ENE
10
NE
10
NNE
15
N
15
N
5
WNW
15
WSW
35
WSW
45
WSW
45
SW
45
WSW
40
WSW
20
W
10
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscross-
off		cross-
off		offcross-
off		cross-
off		glassglasscross-
off		cross-
off		cross-
off		offcross-
off		crosscrosscrosscrosscrosscrosscross-
off		cross-
off
High Tide
/ height (m)
11:08AM
1.21
3:48AM
1.05
12:21PM
1.19
4:28AM
1.14
1:32PM
1.21
4:58AM
1.21
Low Tide
/ height (m)
7:37PM
0.39
6:47AM
1.01
8:34PM
0.28
8:36AM
1.01
9:19PM
0.17
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Sunrise-------6:47-------6:47-------6:47
Sunset-4:46-------4:47-------4:49------
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C131413119877910998767912121314141112
Feels °C (?)242003314765320344245568
  • 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 Amatu 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 Amatu at:
surf-forecast.com

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