Amatu Surf Break

Lat Long: 35.12° N 140.19° E

Amatu 48 hour detailed Surf Forecast

Issued: 2 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Amatu sea temperature is
27.0° C
0.2° 

Amatu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Amatu today (20 Aug):

  • Morning surf: Morning surf (20 Aug, local time) - 1.5ft (0.4m), 11s period with SE swell.
  • Afternoon surf: Afternoon surf (20 Aug, local time) - 1.5ft (0.5m), 11s period with SE swell.
  • Evening surf: Evening surf (20 Aug, local time) - 1.5ft (0.5m), 11s period with SE swell.

The current surf forecast for Amatu at 8AM is: 0.4m 11s primary swell from a Southeast direction and 0.5m 6s secondary swell from a Southeast direction (forecast issued at 02:00am August 20). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (20 Aug)1.5ft (0.4m)11s
Afternoon (20 Aug)1.5ft (0.5m)11s
Evening (20 Aug)1.5ft (0.5m)11s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sat night. Warm (max 28°C on Fri morning, min 24°C on Sat night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SE
10
0.4
SE
10
0.5
SE
11
0.4
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.6
E
9
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.8
E
10
0.7
E
10
0.9
E
10
1
E
11
1
E
11
1.1
E
11
1.1
E
11
Wave Graph
Metric surfscale
Energy kJ
50
37
56
42
57
57
58
58
57
57
57
58
53
65
68
69
66
118
90
175
231
235
284
269
Wind (km/h)
10
SSE
5
SSE
10
SSE
10
SSE
10
SSE
10
S
10
S
10
S
10
SSW
10
SW
10
SSW
15
SSW
15
SSW
15
SSW
15
SSW
15
SSW
15
SW
15
SW
15
SW
15
SW
15
SSW
15
SW
10
SSW
5
SW
Wind State
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
10:14AM1.05m
8:20PM1.38m
8:48PM1.31m
Low Tide
3:17AM0.52m
2:02PM0.96m
4:32AM0.54m
6:13AM0.53m
clear
clear
clear
clear
part cloud
clear
cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:01
5:01
5:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:22
6:21
6:20
 mm
Temp °C
26
25
25
27
27
27
26
26
25
25
25
27
28
27
26
26
25
25
25
27
28
28
27
26
Feels °C
30
29
29
30
30
30
29
29
28
28
28
29
30
28
28
28
27
27
27
29
30
30
31
30
  • 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
How to use the Wavefinder 

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.


Nearest locationNearest