Amatu Surf Break

Lat Long: 35.12° N 140.19° E

Amatu 48 hour detailed Surf Forecast

Issued: 8 pm 19 Sep 2026 (local time)

Forecast update in  hr  min

Today's Amatu sea temperature is
25.1°C
0.4° 

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 Sep):

  • Morning surf: Morning surf (20 Sep, local time) - 10ft (3.0m), 12s period with SE swell.
  • Afternoon surf: Afternoon surf (20 Sep, local time) - 10ft (3.0m), 11s period with SE swell.
  • Evening surf: Evening surf (20 Sep, local time) - 11ft (3.5m), 11s period with SE swell.

The current surf forecast for Amatu at 1AM is: 3.5m 12s primary swell from a Southeast direction and 0.8m 10s secondary swell from a East-northeast direction, 0.9m 8s secondary swell from a Northeast direction (forecast issued at 08:00pm September 19). The wind direction is predicted to be cross-offshore and the swell rating is 11.

Time (JST) & DateWave HeightWave Period
Morning (20 Sep)10ft (3.0m)12s
Afternoon (20 Sep)10ft (3.0m)11s
Evening (20 Sep)11ft (3.5m)11s

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


Short Range Forecast

Heavy rain (total 240mm), heaviest during Mon night. Warm (max 26°C on Mon afternoon, min 21°C on Sun morning). Winds decreasing (gales from the NNW on Mon night, light winds from the S by Tue afternoon).

Sat
19
Sunday
20
Monday
21
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)
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Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SE
13
3
SE
13
3.5
SE
12
3.5
SE
12
3.5
SE
12
3
SE
12
3
SE
11
3
SE
11
3.5
SE
11
3.5
SE
11
3.5
SSE
11
3.5
SSE
12
4
SSE
12
4
SSE
12
4
SSE
12
4.5
SSE
12
5
SSE
13
6.5
SSE
14
Wave Graph
Metric surfscale
Energy kJ
3489
3331
3423
3184
2993
2719
2305
2388
2985
2860
3074
3707
4068
4484
5023
5683
8972
17073
Wind (km/h)
20
NNE
20
NNE
20
NNE
25
NE
25
NE
30
NNE
30
NE
30
NE
25
NE
20
NNE
25
NNE
25
NNE
20
NNE
20
NNE
15
NNE
20
NE
25
E
40
E
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
High Tide
7:42PM1.30m
4:05PM1.18m
8:17PM1.20m
3:07PM1.25m
Low Tide
5:06AM0.55m
4:28PM1.18m
6:50AM0.52m
8:17PM1.09m
cloud
cloud
cloud
light rain
mod rain
light rain
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
mod rain
light rain
mod rain
rain showers
mod rain
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:39
5:38
 mm
3
6
3
17
17
16
26
14
6
3
6
5
6
16
15
Temp °C
22
22
23
23
23
21
22
22
23
23
22
22
22
22
23
24
26
26
Feels °C
23
23
25
24
22
19
20
21
24
24
21
21
22
22
25
26
27
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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