Amatu surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am Wednesday 15 Apr 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
15.5° C
(Which is 2.7°C colder than average for this time of year)

How big are the waves at Amatu today?

The current surf forecast for Amatu at 5PM is: 1.9m 15s primary swell from a South-southeast direction and 0.1m 15s secondary swell from a East direction (forecast issued at 08:00am April 15). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (15 Apr)3.5ft (1.1m)16s
Afternoon (15 Apr)5.5ft (1.7m)16s
Evening (15 Apr)6ft (1.8m)15s

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


Updates in  hr  min  s Forecast update imminent
Wednesday
15
Thursday
16
Friday
17
Sat
18
6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM
Rating
(10 max)
2
3
2
2
3
4
3
2
2
2
2
1
1
!
2
2
2
2
3
3
3
3
3
3
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SSE
1.1
SSE
1.6
SSE
1.7
SSE
2
SSE
1.8
SSE
1.8
SSE
2.3
SE
1.6
SSE
1.9
SSE
1.3
SSE
1.4
SSE
1.7
SSE
3.5
NE
1.7
SSE
1.7
SSE
1.8
SSE
1.8
SSE
1.8
SSE
1.8
SSE
1.9
SSE
1.9
SSE
2
SSE
2
SSE
Period(s) (?)17161616151514141416161415916161515151515151516
Wave
Graph
(?)Metric surfscale
Energy kJ (?)46463512301307178513561319211410281750803733129217471376137614721396137713961631163117981931
Wind
(km/h)
10
ENE
10
E
15
E
10
ESE
10
SE
5
N
15
N
25
NNE
25
N
30
NNE
35
NNE
40
NE
40
NE
35
NNE
30
NNE
30
NE
30
NE
25
NE
20
ENE
15
ENE
10
ENE
10
E
10
SSE
10
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
on
cross-
on
oncross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscrosscross-
on
onon
High Tide
/ height (m)
3:05AM
1.27
3:10PM
1.28
3:28AM
1.33
3:59PM
1.37
3:54AM
1.38
4:48PM
1.42
Low Tide
/ height (m)
9:10AM
0.37
9:22PM
0.32
9:43AM
0.19
10:00PM
0.38
10:19AM
0.01
10:37PM
0.47
Wednesday
15
Thursday
16
Friday
17
Sat
18
Sunrise5:07-------5:07-------5:05-------
Sunset----6:10-------6:10-------6:12---
cloud
clear
part cloud
cloud
light rain
light rain
light rain
light rain
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
cloud
cloud
cloud
Rain (mm)
----3552----------------
Temp. °C16181920171616161516171512111010912131313131414
Feels °C (?)151617191716151311111073333268910111212
  • 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

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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