Amatu Surf Break

Lat Long: 35.12° N 140.19° E

Amatu 48 hour detailed Surf Forecast

Issued: 2 am 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Amatu sea temperature is
27.5° 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 (11 Aug):

  • Morning surf: Morning surf (11 Aug, local time) - 7.5ft (2.3m), 12s period with ENE swell.
  • Afternoon surf: Afternoon surf (11 Aug, local time) - 7ft (2.1m), 12s period with E swell.
  • Evening surf: Evening surf (11 Aug, local time) - 6ft (1.8m), 11s period with ENE swell.

The current surf forecast for Amatu at 10AM is: 2.3m 12s primary swell from a East-northeast direction and 0.5m 10s secondary swell from a South-southwest direction (forecast issued at 02:00am August 11). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (JST) & DateWave HeightWave Period
Morning (11 Aug)7.5ft (2.3m)12s
Afternoon (11 Aug)7ft (2.1m)12s
Evening (11 Aug)6ft (1.8m)11s

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


Short Range Forecast

Heavy rain (total 90mm), heaviest during Tue night. Warm (max 27°C on Thu morning, min 20°C on Tue night). Winds decreasing (fresh winds from the SW on Tue afternoon, light winds from the ESE by Tue night).

Tuesday
11
Wednesday
12
Thursday
13
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)
!
!
4
3
2
1
0
0
0
0
2
0
2
2
2
2
2
2
2
2
2
2
2
3
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)
3
ENE
10
3
ENE
10
2.3
ENE
10
2.3
ENE
12
2.1
E
11
2.1
E
12
2.1
ENE
12
1.8
ENE
11
1.6
ENE
11
1.3
ENE
10
2
ESE
10
1.1
E
10
1.2
E
10
1.2
E
10
1.2
E
10
1.3
E
9
1.3
ENE
9
1.3
E
9
1.5
E
9
1.5
E
10
1.6
E
10
1.6
E
10
1.7
E
10
1.7
E
10
Wave Graph
Metric surfscale
Energy kJ
1465
1395
1040
1343
1144
1290
1211
828
561
370
761
235
262
262
262
293
302
300
388
414
514
535
615
592
Wind (km/h)
25
NNE
25
NNE
10
N
15
NW
20
WSW
30
SW
30
SSW
30
S
25
SSE
20
ESE
10
ESE
20
SSE
10
NE
10
NNE
15
NNE
10
NNE
10
N
10
NNE
10
NNE
15
ENE
15
ENE
15
E
15
ENE
15
NE
Wind State
cross-off
cross-off
off
cross-off
cross
cross
cross-on
cross-on
on
cross-on
cross-on
on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-off
High Tide
2:14AM1.47m
4:55PM1.47m
3:16AM1.56m
5:22PM1.50m
4:10AM1.61m
5:49PM1.52m
Low Tide
9:21PM1.12m
9:37AM0.04m
10:03PM1.01m
10:23AM0.02m
10:41PM0.88m
11:03AM0.05m
part cloud
clear
part cloud
cloud
cloud
mod rain
heavy rain
heavy rain
light rain
light rain
heavy rain
mod rain
light rain
part cloud
clear
clear
thunderstorm
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
4:56
4:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:32
6:31
6:30
 mm
6
20
23
2
1
22
7
1
4
1
1
1
1
Temp °C
22
22
21
24
25
23
23
22
22
20
22
24
23
24
24
23
23
23
24
26
27
27
26
25
Feels °C
20
20
21
24
25
21
22
20
20
19
25
24
24
26
25
25
26
26
27
28
29
29
29
28
  • 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 

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