Amatu surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am Saturday 14 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
16.7° C
(Which is normal for this time of year)


How big are the waves at Amatu today?

The current surf forecast for Amatu at 12PM is: 0.8m 6s primary swell from a Southwest direction and 0.4m 5s secondary swell from a East direction, 0.4m 6s secondary swell from a Southwest direction (forecast issued at 08:00am February 14). The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (14 Feb)1ft (0.3m)10s
Afternoon (14 Feb)1ft (0.3m)10s
Evening (14 Feb)3ft (0.9m)4s

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

Updates in  hr  min  s Forecast update imminent
Saturday
14
Sunday
15
Monday
16
Tue
17
6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM
Rating
(10 max)
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
0
0
0
1
1
Swell
Height Map
Wave Height (m) & direction (?)
0.3
SE
0.3
SE
0.8
SW
0.3
SE
0.4
SE
0.9
SW
1.1
SW
1.1
SW
1.1
SW
0.9
SW
0.9
SW
0.4
E
0.6
E
1.4
SW
1.7
SW
1.5
SW
1.4
SW
0.7
E
0.7
E
0.7
E
1.6
ENE
1.8
ENE
2.2
ENE
2.3
ENE
Period(s) (?)101061010455555141366661212126788
Wave
Graph
(?)Metric surfscale
Energy kJ (?)151545152631496358434160128147240177156144141139191306566705
Wind
(km/h)
5
ESE
5
ESE
5
S
15
SW
20
SW
25
SW
25
SW
25
SW
20
WSW
20
WSW
20
WSW
20
WSW
20
SW
25
SW
25
WSW
20
WSW
10
WNW
15
N
25
NNE
35
NE
30
ENE
30
ENE
35
NNE
25
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglassglasscrosscross-
on
crosscrosscross-
on
crosscrosscrosscrosscrosscrosscrosscrosscross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
High Tide
/ height (m)
4:38AM
1.15
2:15PM
1.16
4:51AM
1.21
3:03PM
1.25
5:07AM
1.26
3:44PM
1.33
Low Tide
/ height (m)
9:31AM
0.91
9:37PM
0.10
9:58AM
0.82
10:10PM
0.02
10:23AM
0.72
10:40PM
-0.02
Saturday
14
Sunday
15
Monday
16
Tue
17
Sunrise-6:26-------6:26-------6:24------
Sunset---5:19-------5:20-------5:21----
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
clear
cloud
cloud
light rain
light rain
light rain
Rain (mm)
---------------------132
Temp. °C91113121112131413141515131313131212131110854
Feels °C (?)791186689910111198891088431-3-3
  • 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

Latest Updates

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.


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