Amatu Surf Break

Lat Long: 35.12° N 140.19° E

Amatu 48 hour detailed Surf Forecast

Issued: 8 am 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Amatu sea temperature is
24.9°C
0.8° 

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 (18 Sep):

  • Morning surf: Morning surf (18 Sep, local time) - 7ft (2.2m), 8s period with ENE swell.
  • Afternoon surf: Afternoon surf (18 Sep, local time) - 7ft (2.2m), 8s period with NE swell.
  • Evening surf: Evening surf (18 Sep, local time) - 3.5ft (1.1m), 14s period with SE swell.

The current surf forecast for Amatu at 4PM is: 2.2m 8s primary swell from a Northeast direction and 0.5m 11s secondary swell from a East direction, 0.4m 8s secondary swell from a Southeast direction (forecast issued at 08:00am September 18). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (18 Sep)7ft (2.2m)8s
Afternoon (18 Sep)7ft (2.2m)8s
Evening (18 Sep)3.5ft (1.1m)14s

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


Short Range Forecast

Heavy rain (total 198mm), heaviest during Sun afternoon. Warm (max 26°C on Sun night, min 20°C on Fri night). Mainly strong winds.

Friday
18
Saturday
19
Sunday
20
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)
1
1
1
1
1
1
2
2
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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)
2.1
ENE
8
2.2
ENE
8
2.2
ENE
8
2.2
NE
8
2.2
NE
8
1.1
SE
14
1.7
SE
14
2.1
SE
13
3
SE
16
3.5
SE
15
3.5
SE
14
3.5
SE
13
3
SE
13
3
SE
12
3.5
SE
12
3.5
SE
12
3.5
SE
12
3.5
SE
12
3.5
SE
12
3.5
SE
12
4
SE
12
5.5
SSE
13
Wave Graph
Metric surfscale
Energy kJ
545
620
605
602
602
485
1036
1438
5081
5120
4843
3732
3397
2825
3037
2938
3017
2977
3224
3567
4764
8884
Wind (km/h)
30
NNE
30
NNE
35
NNE
35
NNE
30
NNE
30
NNE
30
NNE
30
NNE
30
NNE
30
NNE
25
NNE
25
NNE
25
NNE
25
NNE
25
NNE
20
NE
20
ENE
30
ENE
30
NE
40
NNE
25
NE
20
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
cross-off
cross-off
cross-off
cross-on
High Tide
9:33AM1.09m
7:19PM1.39m
7:42PM1.30m
4:05PM1.18m
8:17PM1.20m
Low Tide
1:17PM1.00m
3:23AM0.51m
5:06AM0.55m
4:28PM1.18m
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:24
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:43
5:40
5:39
 mm
4
12
12
16
36
40
25
Temp °C
20
21
21
21
21
21
21
20
20
21
23
22
22
22
22
22
23
23
22
22
24
25
Feels °C
16
18
17
17
18
19
19
17
18
19
22
22
22
22
22
22
24
22
20
19
24
26
  • 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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