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Surf Forecasts:

Amatu surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am Wednesday 18 Feb 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
15.6° C
 (Which is slightly cooler than normal)

How big are the waves at Amatu today?

The current surf forecast for Amatu at 1PM is: 1.4m 9s primary swell from a East direction and 0.1m 11s secondary swell from a Northeast direction (forecast issued at 08:00am February 18). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (18 Feb)4.5ft (1.4m)9s
Afternoon (18 Feb)4.5ft (1.4m)9s
Evening (18 Feb)6ft (1.9m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Wednesday
18
Thursday
19
Friday
20
Sat
21
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)
2
2
1
2
2
3
1
0
1
1
1
0
0
0
1
1
1
1
1
1
1
1
2
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
E
1.4
E
1.4
E
1.4
E
1.2
E
1.9
SW
1.4
SW
0.7
E
0.5
E
0.5
E
0.5
E
0.6
E
0.6
E
0.6
E
0.6
E
0.4
ENE
0.4
ENE
0.6
E
0.6
E
0.6
E
0.7
ENE
0.6
ENE
0.7
ENE
0.7
ENE
Period(s) (?)11999988912121212121212161515141413131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)114306306313230434232767171721031031061038179155146134187141187181
Wind
(km/h)
15
N
10
NNW
10
SW
15
W
10
WNW
15
WNW
35
N
35
N
25
N
20
N
5
NW
10
SW
10
SW
5
SW
5
SSW
5
E
10
NE
10
NE
5
NE
5
N
5
W
5
WNW
5
N
5
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffcross-
on		cross-
off		cross-
off		cross-
off		offoffoffoffcross-
off		cross-
on		cross-
on		crossglassglasscross-
off		cross-
off		cross-
off		glasscross-
off		glassoffoff
High Tide
/ height (m)
5:45AM
1.34
5:01PM
1.44
6:06AM
1.37
5:41PM
1.44
6:28AM
1.37
6:23PM
1.39
Low Tide
/ height (m)
11:18AM
0.51
11:39PM
0.01
11:49AM
0.41
12:09AM
0.10
12:22PM
0.32
12:38AM
0.24
Wednesday
18
Thursday
19
Friday
20
Sat
21
Sunrise-6:22-------6:22-------6:20------
Sunset---5:22-------5:23-------5:24----
part cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
Rain (mm)
------------------------
Temp. °C6710119863347877876810109887
Feels °C (?)246653-4-7-5-334335414786654
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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