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Surf Forecasts:

Amatu surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 pm Monday 19 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
15.9° C
 (Which is 1.5°C colder than average for this time of year)

How big are the waves at Amatu today?

The current surf forecast for Amatu at 6AM is: 0.7m 12s primary swell from a East-northeast direction and 0.3m 10s secondary swell from a Southeast direction (forecast issued at 08:00pm January 19). An open ocean swell of 1.7m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (20 Jan)4ft (1.2m)7s
Afternoon (20 Jan)2ft (0.6m)12s
Evening (20 Jan)3.5ft (1.1m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Mon
19
Tuesday
20
Wednesday
21
Thursday
22
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
0
0
0
1
1
1
1
2
1
0
0
0
2
1
0
0
0
1
1
1
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
ENE
0.7
ENE
1.6
SW
1.9
SW
0.7
ENE
1.2
SW
0.7
ENE
0.6
ENE
1.2
NE
1.1
NE
1.1
NE
0.8
NE
0.4
NE
0.6
ENE
1.1
NE
0.4
NE
0.6
SE
0.6
SE
0.6
SE
0.7
SE
0.8
SE
0.8
SE
0.7
SE
0.7
SE
Period(s) (?)141466127121288101014148141010101010101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)136161160266133135125911731422291205112714549777679100122129106104
Wind
(km/h)
30
SW
40
SW
40
SW
45
WSW
20
WNW
25
NNE
20
NNE
15
NE
20
N
20
N
25
N
25
N
20
NNE
20
NNE
15
N
10
NNE
10
ENE
10
S
20
NW
20
N
15
NNW
20
N
15
NNW
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
on		cross-
off		offoffoffoffoff
High Tide
/ height (m)
4:30PM
1.40
6:33AM
1.35
5:07PM
1.42
6:56AM
1.36
5:46PM
1.42
7:20AM
1.36
Low Tide
/ height (m)
11:35PM
-0.05
11:46AM
0.76
12:05AM
-0.03
12:17PM
0.70
12:35AM
0.04
12:50PM
0.64
Mon
19
Tuesday
20
Wednesday
21
Thursday
22
Sunrise-----6:45-------6:45-------6:43--
Sunset-------4:53-------4:54-------4:55
clear
cloud
part cloud
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
rain showers
clear
clear
part cloud
cloud
part cloud
cloud
Rain (mm)
-----------------1------
Temp. °C131415151210987631001225321344
Feels °C (?)777664331-1-4-7-7-6-4-2-21-3-4-5-3-2-2
  • 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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