Amatu Surf Break

Amatu 48 hour detailed Surf Forecast

Lat Long: 35.12° N 140.19° E

Issued: 8 am 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's Amatu sea temperature is
22.0° C

Slightly cooler than normal

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 Jun):

  • Morning surf: Morning surf (18 Jun, local time) - 6ft (1.8m), 7s period with SSW swell.
  • Afternoon surf: Afternoon surf (18 Jun, local time) - 3.5ft (1.1m), 7s period with SSE swell.
  • Evening surf: Evening surf (18 Jun, local time) - 3.5ft (1.1m), 7s period with SSE swell.

The current surf forecast for Amatu at 11AM is: 1.8m 7s primary swell from a South-southwest direction and 1.4m 7s secondary swell from a South-southeast direction, 0.9m 8s secondary swell from a South-southwest direction (forecast issued at 08:00am June 18). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (18 Jun)6ft (1.8m)7s
Afternoon (18 Jun)3.5ft (1.1m)7s
Evening (18 Jun)3.5ft (1.1m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 38mm), heaviest during Thu morning. Warm (max 23°C on Thu afternoon, min 21°C on Thu morning). Winds increasing (calm on Thu night, fresh winds from the ESE by Sat night).

Thursday
18
Friday
19
Saturday
20
Sun
21
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
12 AM
3 AM
Rating
(10 max)
1
2
3
1
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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)
0.9
ENE
9
1.8
SSW
7
2.5
SSW
8
1.1
SSE
7
1.2
SSE
7
1.1
SSE
7
0.9
SW
9
1.3
SW
9
0.9
SSE
7
0.6
ENE
9
0.5
ENE
9
0.5
ENE
9
0.5
ENE
9
0.6
ENE
9
0.7
ENE
9
0.7
ENE
8
0.7
ENE
9
0.8
ENE
8
0.9
ENE
9
0.9
ENE
10
1
ENE
10
0.9
ENE
10
1
ENE
10
1.6
E
10
Wave Graph
Metric surfscale
Energy kJ
143
327
689
110
129
110
118
262
75
62
45
45
45
61
67
64
65
82
116
145
175
145
183
494
Wind (km/h)
10
ESE
15
NE
20
N
20
N
10
NNW
5
W
5
SSW
5
ENE
15
ENE
15
E
15
E
15
E
15
E
15
E
15
E
15
ENE
20
E
20
E
20
ESE
20
ESE
20
ESE
30
ESE
25
S
20
WSW
Wind State
cross-on
cross-off
cross-off
cross-off
off
cross-off
glassy
glassy
cross
cross
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
High Tide
5:44AM1.50m
8:13PM1.38m
6:36AM1.43m
8:50PM1.34m
7:33AM1.32m
9:25PM1.32m
Low Tide
1:00PM-0.04m
1:14AM0.92m
1:45PM0.12m
2:07AM0.87m
2:29PM0.30m
heavy rain
heavy rain
cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
mod rain
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:24
4:24
4:24
4:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:54
6:55
6:55
6:55
 mm
12
12
1
5
9
5
3
Temp °C
21
21
21
23
23
21
21
21
21
22
23
23
22
22
21
21
21
22
22
21
21
21
22
21
Feels °C
23
22
21
22
25
23
24
24
22
23
24
24
23
23
21
21
21
22
21
21
21
19
22
21
Swell 1
Height (m)
Direction
Period (s)
1.1
S
6
1.6
S
7
1.4
SSE
7
1.1
SSE
7
1.2
SSE
7
1.1
SSE
7
1
SSE
7
0.9
SSE
6
0.9
SSE
7
0.7
S
6
0.6
S
6
0.5
ENE
9
0.5
ENE
9
0.6
ENE
9
0.7
ENE
9
0.7
ENE
8
0.7
ENE
9
0.8
ENE
8
0.9
ENE
9
0.9
ENE
10
1
ENE
10
0.9
ENE
10
1
ENE
10
1.6
E
10
Energy kJ
88
240
168
110
129
110
88
75
75
38
28
45
45
61
67
64
65
82
116
145
175
145
183
494
Swell 2
Height (m)
Direction
Period (s)
0.9
ENE
9
0.8
ENE
10
0.9
SSW
8
1
SSW
7
0.8
SSW
7
0.8
SSW
8
0.9
SW
9
0.8
SW
9
0.6
SW
8
0.6
SW
8
0.5
ENE
9
0.5
S
6
0.4
SE
10
0.4
SW
8
0.4
SW
8
0.4
SSE
5
0.4
SW
8
0.5
SW
7
0.4
SW
7
0.4
SW
7
0.4
SE
10
0.3
SW
7
0.4
SE
9
0.4
SE
9
Energy kJ
126
105
98
104
70
72
118
88
42
39
45
18
35
20
21
10
20
27
18
16
33
7
22
21
Swell 3
Height (m)
Direction
Period (s)
0.8
SW
8
0.2
SSE
10
0.8
ENE
10
0.7
ENE
9
0.6
ENE
9
0.5
ENE
9
0.5
ENE
9
0.5
ENE
9
0.6
ENE
9
0.6
ENE
9
0.5
SW
8
0.4
SW
8
0.4
SW
8
0.4
SE
10
0.4
SE
10
0.4
SW
8
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SW
7
0.2
SSE
12
0.3
SW
6
0.3
SE
12
Energy kJ
69
10
103
75
68
48
48
47
54
62
31
22
20
25
25
20
34
34
34
33
12
14
7
21
Wind waves
Height (m)
Direction
Period (s)
1.3
SSE
6
1.8
SSW
7
2.5
SSW
8
0.5
N
3
0.9
NNE
5
0.5
W
3
1.3
SW
9
0.5
NE
5
0.4
ENE
3
0.4
ENE
3
0.4
E
3
0.6
SE
6
0.6
SE
6
0.6
SE
5
0.5
E
4
0.6
ESE
4
0.8
ESE
4
0.7
SE
4
0.9
ESE
5
1.1
SE
5
1.4
SE
5
1.3
ESE
6
1.1
SW
6
Energy kJ
143
327
689
4
33
4
262
12
3
3
3
26
19
22
6
12
19
19
37
55
107
108
83
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
3
1
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
2
2
1
1
Distance (km)
537
30
24
6
126
0
0
6
0
5
35
35
35
87
87
87
231
40
40
571
1052
1052
889
190
Best forecast wave conditions in Chiba
Rating
(10 max)
1
2
3
2
2
2
2
2
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
2
3
1
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
2
2
Header Global
Rating
(10 max)
4
4
5
5
5
9
9
9
5
5
5
5
6
6
6
5
9
5
4
5
4
4
4
5
  • 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
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