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Surf Forecasts:

Amatu surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am Saturday 10 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
17.1° C
 (Which is slightly cooler than normal)

How big are the waves at Amatu today?

The current surf forecast for Amatu at 3PM is: 1.8m 6s primary swell from a Southwest direction and 0.2m 10s secondary swell from a East direction, 0.1m 12s secondary swell from a Northeast direction (forecast issued at 08:00am January 10). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (10 Jan)3.5ft (1.1m)5s
Afternoon (10 Jan)6ft (1.8m)6s
Evening (10 Jan)8ft (2.5m)7s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Saturday
10
Sunday
11
Monday
12
Tue
13
6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
2
2
1
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
SW
1.1
SW
1.6
SW
1.8
SW
2.1
SW
2.5
SW
3
SW
3
SW
3
SW
2.5
SW
3
SW
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
1.8
SW
1.4
SW
1.2
SW
1
SW
0.9
SW
1.1
SW
2.1
SW
2.1
SW
Period(s) (?)45566788888121212121210101099887
Wave
Graph
(?)Metric surfscale
Energy kJ (?)14511382393526309411319116976910101212121212634388268163135184560466
Wind
(km/h)
20
WSW
30
SW
40
SW
40
SW
40
SW
45
SW
50
SW
45
SW
35
SW
45
WSW
60
W
50
W
50
W
40
W
35
W
25
W
5
W
10
NE
5
NNE
0
SE
5
S
15
SW
25
WSW
35
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscrosscrosscrosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		glasscross-
off		glassglassoncrosscrosscross
High Tide
/ height (m)
9:13AM
1.31
9:35PM
1.01
9:42AM
1.28
11:28PM
0.92
10:18AM
1.24
2:18AM
0.95
Low Tide
/ height (m)
3:50PM
0.63
3:09AM
0.67
5:04PM
0.58
3:44AM
0.81
6:25PM
0.50
Saturday
10
Sunday
11
Monday
12
Tue
13
Sunrise-6:48-------6:47-------6:47------
Sunset---4:45-------4:45-------4:45----
cloud
clear
clear
part cloud
part cloud
clear
part cloud
light rain
cloud
part cloud
clear
cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
-------1----------------
Temp. °C8101213141514151211108543334676768
Feels °C (?)2334664641-4-5-8-7-7-4-1-12422-1-1
  • 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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