Amatu surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 pm Sunday 22 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
15.1° 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 1AM is: 1.7m 6s primary swell from a South-southwest direction and 0.5m 12s secondary swell from a East direction, 0.4m 11s secondary swell from a Northeast direction (forecast issued at 08:00pm February 22). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (23 Feb)6ft (1.9m)6s
Afternoon (23 Feb)6.5ft (2.0m)7s
Evening (23 Feb)5ft (1.6m)6s

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

Updates in  hr  min  s Forecast update imminent
Sun
22
Monday
23
Tuesday
24
Wednesday
25
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
1
0
0
1
0
0
0
0
0
0
0
0
0
3
Swell
Height Map
Wave Height (m) & direction (?)
1.2
SSW
1.6
SSW
1.7
SSW
1.7
SSW
1.8
SSW
1.9
SSW
2.2
SSW
2
SSW
1.7
SSW
1.6
SW
0.9
S
0.5
E
0.5
E
0.4
ENE
0.4
ENE
0.4
ENE
0.5
E
0.5
E
0.3
ENE
1.3
S
1.4
S
1.5
S
2
S
1.7
SE
Period(s) (?)55666677766111111111110101556678
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6313519522325430744437226118858575739393752524395138182352390
Wind
(km/h)
30
SSW
35
SSW
40
SW
35
SSW
35
SSW
40
SSW
40
SSW
30
SW
25
SW
15
WSW
5
W
20
NNE
15
NE
10
NE
10
E
15
SE
15
SSE
20
SSW
30
SSW
30
SSW
30
SSW
35
SSW
35
SSW
5
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
on
ononcross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
glass
High Tide
/ height (m)
7:59PM
1.19
7:34AM
1.33
9:03PM
1.05
7:57AM
1.30
10:55PM
0.94
8:24AM
1.26
Low Tide
/ height (m)
1:32AM
0.57
2:27PM
0.21
1:53AM
0.74
3:31PM
0.23
2:01AM
0.88
Sun
22
Monday
23
Tuesday
24
Wednesday
25
Sunrise-----6:16-------6:16-------6:15--
Sunset-------5:28-------5:29-------5:30
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
cloud
cloud
light rain
cloud
light rain
light rain
mod rain
heavy rain
Rain (mm)
------------------1-121022
Temp. °C151516161616171816151311101114131417171717181612
Feels °C (?)989999101311131287912101214121212131112
  • 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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