Amatu Surf Break

Lat Long: 35.12° N 140.19° E

Amatu 48 hour detailed Surf Forecast

Issued: 2 pm 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Amatu sea temperature is
24.3°C
1.2° 

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 (21 Sep):

  • Afternoon surf: Afternoon surf (21 Sep, local time) - 16ft (5.0m), 13s period with SSE swell.
  • Evening surf: Evening surf (21 Sep, local time) - 20ft (6.0m), 13s period with SSE swell.

The current surf forecast for Amatu at 8PM is: 6.5m 13s primary swell from a South-southeast direction and 2.5m 10s secondary swell from a East-southeast direction (forecast issued at 02:00pm September 21). An open ocean swell of 1.0m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Sep)--
Afternoon (21 Sep)16ft (5.0m)13s
Evening (21 Sep)20ft (6.0m)13s

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


Short Range Forecast

Heavy rain (total 139mm), heaviest during Mon afternoon. Warm (max 27°C on Mon afternoon, min 21°C on Wed night). Winds decreasing (near gales from the NNW on Mon night, light winds from the NNE by Wed night).

Mon
21
Tuesday
22
Wednesday
23
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
!
4
2
1
2
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
5
SSE
13
5
SSE
13
7
SSE
13
6
SSE
13
3
S
12
1.6
S
11
1.9
SSE
10
1.8
S
9
1.7
S
9
1.5
S
8
1.3
SSE
8
1.1
S
8
1
S
8
0.8
S
7
1.3
ENE
5
1.3
ENE
5
1.1
ENE
5
1.3
ESE
6
1.1
ESE
6
1.1
ESE
6
Wave Graph
Metric surfscale
Energy kJ
8353
8882
16484
11933
2917
577
644
541
463
324
235
157
118
70
82
85
60
111
77
77
Wind (km/h)
35
ESE
40
E
40
ENE
55
NNW
40
NW
10
WNW
10
SSW
10
SSW
10
S
10
E
15
ENE
20
ENE
25
ENE
25
ENE
25
ENE
25
ENE
20
ENE
20
ENE
15
ENE
15
E
Wind State
cross-on
cross
cross
off
off
cross-off
cross-on
cross-on
on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
High Tide
3:07PM1.25m
00:16AM1.17m
3:17PM1.32m
1:39AM1.26m
3:30PM1.39m
Low Tide
8:17PM1.09m
7:53AM0.45m
8:43PM0.97m
8:35AM0.39m
thunderstorm
thunderstorm
heavy rain
heavy rain
light rain
part cloud
part cloud
light rain
rain showers
rain showers
rain showers
part cloud
light rain
cloud
cloud
cloud
light rain
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:38
5:37
5:36
 mm
5
52
53
19
3
1
2
2
1
1
1
Temp °C
27
26
27
24
25
25
25
26
26
25
24
24
24
23
23
23
23
23
24
24
Feels °C
27
25
26
18
22
27
28
29
29
28
25
25
23
22
22
21
22
22
24
25
  • 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.


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