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Surf Forecasts:

Amatu surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 pm Wednesday 18 Mar 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
15.2° C
 (Which is 1.8°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: 1.9m 14s primary swell from a East-northeast direction and 1.2m 6s secondary swell from a South-southeast direction (forecast issued at 08:00pm March 18). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (19 Mar)5ft (1.6m)14s
Afternoon (19 Mar)5ft (1.5m)14s
Evening (19 Mar)4ft (1.2m)13s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Wed
18
Thursday
19
Friday
20
Saturday
21
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)
1
2
0
0
0
0
!
3
0
0
1
2
0
1
0
0
2
3
3
1
1
2
1
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.8
ENE
1.9
ENE
1.9
ENE
1.9
ENE
1.7
ENE
1.6
ENE
3
SW
1.5
ENE
1.3
ENE
1.2
ENE
1.2
ENE
1.1
ENE
1
ENE
1
ENE
1.7
ENE
0.9
ENE
0.9
ENE
1.1
ENE
1.1
ENE
1.1
ENE
1.1
ENE
1
ENE
1
ENE
1
ENE
Period(s) (?)1414141414148141313131313137131414141413131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)121513031322132211398741135758627523515431356345280298356459446415396326317312
Wind
(km/h)
20
S
20
SW
20
SW
45
SSW
45
SSW
45
SW
15
W
15
ENE
30
ENE
30
ENE
25
ENE
20
NE
25
ENE
20
E
20
E
20
E
10
NE
10
NNW
15
N
25
N
20
N
15
N
5
WSW
15
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		crosscross-
on		cross-
on		cross-
on		crosscross-
off		crosscrosscrosscross-
off		cross-
off		crosscrosscross-
on		crosscross-
off		offoffcross-
off		cross-
off		offcrosscross-
on
High Tide
/ height (m)
4:09PM
1.39
4:49AM
1.35
4:52PM
1.43
5:12AM
1.38
5:36PM
1.44
5:35AM
1.40
Low Tide
/ height (m)
10:35PM
0.12
10:47AM
0.24
11:07PM
0.19
11:20AM
0.11
11:40PM
0.30
11:56AM
0.01
Wed
18
Thursday
19
Friday
20
Saturday
21
Sunrise----5:45-------5:43-------5:43---
Sunset-------5:49-------5:50-------5:50
cloud
cloud
cloud
light rain
light rain
light rain
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
cloud
rain showers
light rain
part cloud
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---111-----11-11--------
Temp. °C15141416171716161312111110111111111087581111
Feels °C (?)121110910101413766756779740-2276
  • 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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