Surf Break

Lat Long: 35.12° N 140.19° E

Amatu 48 hour detailed Surf Forecast

Issued: 2 am 18 Oct 2026 (local time)

Forecast update in  hr  min

Today's Amatu sea temperature is
24.0°C
0.6° 

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 Oct):

  • Morning surf: Morning surf (18 Oct, local time) - 1.5ft (0.4m), 9s period with ENE swell.
  • Afternoon surf: Afternoon surf (18 Oct, local time) - 2.5ft (0.7m), 5s period with E swell.
  • Evening surf: Evening surf (18 Oct, local time) - 2.5ft (0.7m), 5s period with SE swell.

The current surf forecast for Amatu at 9AM is: 0.4m 9s primary swell from a East-northeast direction and 0.2m 8s secondary swell from a East-southeast direction, 0.7m 5s secondary swell from a East direction (forecast issued at 02:00am October 18). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (18 Oct)1.5ft (0.4m)9s
Afternoon (18 Oct)2.5ft (0.7m)5s
Evening (18 Oct)2.5ft (0.7m)5s

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


Short Range Forecast

Mostly dry. Warm (max 25°C on Tue morning, min 20°C on Sun morning). Winds increasing (light winds from the E on Sun morning, fresh winds from the SW by Tue night).

Sunday
18
Monday
19
Tuesday
20
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
1
0
0
0
0
0
0
0
0
0
0
0
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
Height Map
Wave
Height (m)
Direction
Period (s)
1
ENE
8
0.9
ENE
9
0.4
ENE
9
0.4
ENE
9
0.7
E
5
0.7
E
5
0.7
ESE
5
0.7
SE
5
0.9
SE
5
1
SSE
5
1.1
SSE
5
1.2
S
5
1.3
S
6
1.1
SW
5
1
SE
6
1.1
SE
6
1.1
SE
6
1.1
SE
8
1.1
SE
6
0.6
SSE
14
0.9
SE
9
0.9
SSE
13
1.2
SE
13
1.3
SSE
13
Wave Graph
Metric surfscale
Energy kJ
120
141
33
28
24
23
21
24
42
44
61
78
101
66
76
101
94
163
108
165
138
246
486
546
Wind (km/h)
10
ENE
10
NE
10
ENE
15
E
15
SE
15
SSE
15
S
15
S
20
SSW
25
SSW
25
SSW
30
SSW
30
SSW
30
SW
25
SW
20
SW
20
SW
20
SW
20
SW
25
SW
30
SW
30
SW
25
SW
25
SW
Wind State
cross
cross-off
cross
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross
High Tide
11:17AM1.13m
7:17PM1.26m
1:05PM1.18m
8:35PM1.15m
1:40PM1.25m
Low Tide
2:41AM0.45m
2:06PM1.11m
4:03AM0.53m
5:15PM1.12m
5:38AM0.55m
7:20PM1.01m
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
cloud
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
5:46
—
—
—
—
—
—
—
5:47
—
—
—
—
—
—
—
5:48
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
5:00
—
—
—
—
—
—
—
5:00
—
—
—
—
—
—
—
4:59
—
—
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
20
19
20
20
21
21
21
22
22
22
22
23
24
24
23
23
23
23
23
24
25
25
24
24
Feels °C
19
17
18
18
18
19
19
19
19
19
19
20
20
21
22
22
23
23
23
23
23
24
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.


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