Amatu Surf Break

Lat Long: 35.12° N 140.19° E

Amatu 48 hour detailed Surf Forecast

Issued: 2 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Amatu sea temperature is
24.4°C
1.1° 

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):

  • Morning surf: Morning surf (21 Sep, local time) - 18ft (5.5m), 13s period with SSE swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 18ft (5.5m), 13s period with SSE swell.
  • Evening surf: Evening surf (21 Sep, local time) - 21ft (6.5m), 13s period with SSE swell.

The current surf forecast for Amatu at 7AM is: 4.5m 12s primary swell from a South-southeast direction and 0.6m 11s secondary swell from a East direction (forecast issued at 02:00am September 21). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Sep)18ft (5.5m)13s
Afternoon (21 Sep)18ft (5.5m)13s
Evening (21 Sep)21ft (6.5m)13s

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


Short Range Forecast

Heavy rain (total 89mm), heaviest during Mon night. Warm (max 27°C on Mon morning, min 21°C on Wed night). Mainly near gales.

Monday
21
Tuesday
22
Wednesday
23
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
!
!
3
4
3
0
1
0
0
0
1
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
Height Map
Wave
Height (m)
Direction
Period (s)
4.5
SSE
12
4.5
SSE
12
4.5
SSE
12
5.5
SSE
13
5
SSE
13
5.5
SSE
13
6
SSE
13
6.5
SSE
13
6.5
SSE
13
3
ESE
10
1.6
SE
10
1.8
SSE
10
1.7
SSE
9
1.6
S
9
1.4
SSE
8
1.3
SSE
8
1.1
ENE
9
1.2
ENE
9
0.8
SSE
7
0.7
S
7
1.3
ENE
9
0.7
ENE
9
1.2
ENE
9
1
ENE
8
Wave Graph
Metric surfscale
Energy kJ
5123
5655
5654
8899
7919
9316
11671
14007
13571
1959
469
556
495
402
277
229
180
222
73
48
251
65
199
137
Wind (km/h)
15
ENE
15
ESE
20
ESE
30
SE
35
ESE
40
ESE
45
E
55
ENE
45
NNW
45
NW
15
NNW
5
S
15
E
15
ENE
15
E
15
E
20
ENE
25
NE
20
NE
20
ENE
20
ENE
20
ENE
15
ENE
15
ENE
Wind State
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
off
off
off
glassy
cross-on
cross
cross
cross
cross
cross-off
cross-off
cross
cross
cross
cross
cross
High Tide
3:07PM1.25m
00:16AM1.17m
3:17PM1.32m
1:39AM1.26m
3:30PM1.39m
Low Tide
6:50AM0.52m
8:17PM1.09m
7:53AM0.45m
8:43PM0.97m
8:35AM0.39m
rain showers
thunderstorm
thunderstorm
mod rain
mod rain
thunderstorm
thunderstorm
heavy rain
heavy rain
rain showers
cloud
cloud
cloud
cloud
part cloud
light rain
light rain
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:38
5:37
5:36
 mm
7
12
12
7
6
11
5
26
27
3
1
1
Temp °C
25
25
26
27
27
26
27
26
25
24
25
26
26
24
23
23
23
22
22
23
24
24
23
23
Feels °C
27
28
28
28
27
25
25
22
22
20
26
30
27
25
24
24
23
21
21
21
23
23
23
23
  • 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