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Surf Forecasts:

Amatu surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 am Friday 21 Nov 2025 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
19.8° C
 (Which is 1.3°C colder than average for this time of year)

How big are the waves at Amatu today?

The current surf forecast for Amatu at 8AM is: 0.9m 6s primary swell from a Southwest direction and 0.4m 6s secondary swell from a East direction, 0.2m 9s secondary swell from a East-southeast direction (forecast issued at 02:00am November 21). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Nov)3ft (0.9m)6s
Afternoon (21 Nov)4.5ft (1.4m)7s
Evening (21 Nov)5ft (1.6m)7s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Friday
21
Saturday
22
Sunday
23
0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM
Rating
(10 max)
0
0
1
1
0
1
1
2
2
0
0
0
0
0
0
0
0
0
1
1
2
2
2
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
SW
1
SW
0.9
SW
0.9
SW
1
SW
1.4
SW
1.5
SW
1.6
SW
1.3
SW
0.9
SW
0.4
ESE
0.4
ESE
0.4
ESE
0.8
ENE
0.8
ENE
0.5
E
0.5
E
0.5
E
0.5
E
0.9
ESE
1.1
SE
1.3
ESE
1.3
SE
1.8
SE
Period(s) (?)5666677777111110671010101077667
Wave
Graph
(?)Metric surfscale
Energy kJ (?)36616052781682352681768638374247565150484668100112124299
Wind
(km/h)
20
WSW
15
W
10
WNW
5
WNW
15
WSW
15
W
10
WSW
10
W
15
NNW
15
NNE
15
NNE
15
NE
15
ENE
15
ENE
15
ENE
10
E
10
E
5
ENE
5
NNE
10
N
10
NNE
5
N
5
N
5
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		cross-
off		crosscross-
off		crosscross-
off		offcross-
off		cross-
off		cross-
off		crosscrosscrosscrosscrosscrossglassoffcross-
off		cross-
off		cross-
off		glass
High Tide
/ height (m)
5:42AM
1.38
4:06PM
1.46
6:20AM
1.36
4:33PM
1.45
7:00AM
1.34
5:04PM
1.43
Low Tide
/ height (m)
10:39PM
0.10
10:49AM
0.90
11:11PM
0.08
11:21AM
0.93
11:44PM
0.08
11:54AM
0.96
Friday
21
Saturday
22
Sunday
23
Sunrise---6:18-------6:18-------6:20----
Sunset-----4:30-------4:30-------4:29--
clear
clear
clear
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
light rain
Rain (mm)
-----------------------1
Temp. °C131211121415141413121214141414141515151415151515
Feels °C (?)8881010111111107810101011111314151214141415
  • 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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