Amatu surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 pm Friday 17 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
17.0° C
(Which is 1.2°C colder than average for this time of year)

How big are the waves at Amatu today?

The current surf forecast for Amatu at 7PM is: 2.0m 16s primary swell from a South-southeast direction and 1.7m 11s secondary swell from a East-northeast direction, 2.1m 10s secondary swell from a East-northeast direction (forecast issued at 02:00pm April 17). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (17 Apr)--
Afternoon (17 Apr)5ft (1.5m)14s
Evening (17 Apr)7ft (2.1m)16s

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


Updates in  hr  min  s Forecast update imminent
Friday
17
Saturday
18
Sunday
19
Monday
20
12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM
Rating
(10 max)
3
2
3
3
4
4
5
3
3
3
3
4
4
4
4
4
3
2
4
4
!
!
3
2
Swell
Height Map
Wave Height (m) & direction (?)
1.8
SSE
1.5
SSE
1.9
SSE
2.1
SSE
2.3
SSE
2.3
SSE
2.3
SSE
2.4
SSE
2.3
SSE
2.2
SSE
2.2
SSE
2.3
SSE
2.4
SSE
2.3
SSE
2.3
SSE
2.3
SE
2.4
SE
2.5
SE
2.5
SE
2.5
SE
3
SE
3
SE
2.5
SE
2.5
SE
Period(s) (?)151415161616161616161515151414141414151515141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)13589301652236827092642271629402682237921982242234922432212212523902541317831783419333128622350
Wind
(km/h)
20
ENE
20
ENE
15
ENE
10
E
10
SE
5
SSE
5
SSE
10
S
10
S
10
S
10
SSE
5
SE
5
ESE
5
N
10
NNE
10
ENE
15
E
15
ENE
10
E
5
ENE
10
NNE
10
NNE
15
NE
25
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscrosscross-
on
cross-
on
onglassononononglassglassglasscross-
off
cross-
off
crosscrosscrosscrosscross-
off
cross-
off
cross-
off
cross
High Tide
/ height (m)
4:48PM
1.42
4:21AM
1.42
5:37PM
1.42
4:50AM
1.44
6:29PM
1.38
5:20AM
1.45
Low Tide
/ height (m)
10:19AM
0.01
10:37PM
0.47
10:56AM
-0.12
11:14PM
0.58
11:37AM
-0.20
11:50PM
0.69
Friday
17
Saturday
18
Sunday
19
Monday
20
Sunrise------5:03-------5:03-------5:01-
Sunset--6:12-------6:13-------6:14-----
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
clear
cloud
cloud
cloud
cloud
Rain (mm)
------------------------
Temp. °C131313131414141617171716161615181918171616151517
Feels °C (?)8910101213131415161716161614161715161616141213
  • 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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