Amatu Surf Break

Amatu 48 hour detailed Surf Forecast

Lat Long: 35.12° N 140.19° E

Issued: 8 pm 20 Jun 2026 (local time)

Forecast update in  hr  min

Today's Amatu sea temperature is
23.0° C

Normal for this time of year

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 (21 Jun):

  • Morning surf: Morning surf (21 Jun, local time) - 5.5ft (1.7m), 6s period with SSW swell.
  • Afternoon surf: Afternoon surf (21 Jun, local time) - 8ft (2.5m), 7s period with SW swell.
  • Evening surf: Evening surf (21 Jun, local time) - 7ft (2.1m), 8s period with SW swell.

The current surf forecast for Amatu at 3AM is: 0.9m 10s primary swell from a East-northeast direction and 0.3m 12s secondary swell from a Southeast direction, 1.6m 5s secondary swell from a South-southeast direction (forecast issued at 08:00pm June 20). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Jun)5.5ft (1.7m)6s
Afternoon (21 Jun)8ft (2.5m)7s
Evening (21 Jun)7ft (2.1m)8s

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 25mm), heaviest during Sat night. Warm (max 27°C on Sun afternoon, min 18°C on Mon night). Winds decreasing (strong winds from the SW on Sun afternoon, calm by Mon morning).

Sat
20
Sunday
21
Monday
22
Tuesday
23
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
6 AM
9 AM
12 PM
3 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
3
3
2
2
2
2
0
1
0
0
1
2
2
2
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)
0.8
ENE
8
0.9
ENE
9
0.9
ENE
10
0.9
ENE
10
1.6
S
6
1.7
SSW
6
2.1
SW
7
2.5
SW
7
2.5
SW
7
2.1
SW
8
1.7
SW
8
1.5
SW
8
1.2
SW
8
1
ENE
10
1
ENE
10
1
ENE
10
0.9
ENE
10
0.9
ENE
10
0.9
ENE
9
2.2
NE
8
2.4
NE
9
2.1
NE
10
1.9
ENE
11
1.7
ENE
11
Wave Graph
Metric surfscale
Energy kJ
92
130
142
148
157
189
370
645
658
528
392
319
201
194
186
183
148
142
139
558
947
849
799
687
Wind (km/h)
15
SSE
20
SSE
30
SSE
35
S
35
SSW
40
SW
40
SW
40
SW
35
WSW
10
W
10
N
5
WNW
5
NNE
5
NNE
5
S
10
S
5
SSE
25
E
30
NNE
30
NNE
25
NNE
25
NNE
20
NE
15
ENE
Wind State
on
on
on
on
cross-on
cross-on
cross
cross
cross
cross-off
off
cross-off
cross-off
glassy
glassy
cross-on
on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross
High Tide
9:25PM1.32m
8:37AM1.20m
10:00PM1.31m
9:57AM1.09m
10:37PM1.31m
11:44AM1.03m
Low Tide
3:08AM0.81m
3:12PM0.47m
4:21AM0.74m
3:58PM0.63m
5:38AM0.65m
mod rain
heavy rain
mod rain
light rain
thunderstorm
thunderstorm
part cloud
clear
clear
clear
part cloud
part cloud
clear
part cloud
cloud
cloud
cloud
light rain
light rain
cloud
cloud
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:24
4:24
4:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:55
6:55
6:57
 mm
9
11
7
2
1
1
2
1
Temp °C
22
21
21
23
23
24
26
27
26
23
22
21
22
23
25
25
24
22
19
18
18
19
21
21
Feels °C
23
21
19
21
21
22
23
23
23
24
24
23
24
25
27
26
27
21
15
14
15
16
19
20
Swell 1
Height (m)
Direction
Period (s)
0.8
ENE
8
0.9
ENE
9
0.9
ENE
10
0.9
ENE
10
0.9
ENE
10
0.9
ENE
10
0.8
ENE
10
0.8
ENE
9
0.7
ENE
9
2.1
SW
8
1.7
SW
8
1.5
SW
8
1.2
SW
8
1
SW
8
1
ENE
10
1
ENE
10
0.9
ENE
10
0.9
ENE
10
0.9
ENE
9
0.6
SW
8
0.4
SW
7
0.4
SE
11
0.4
SE
11
1.7
ENE
11
Energy kJ
92
130
142
148
148
135
103
98
78
528
392
319
201
132
186
183
148
142
139
45
19
33
44
687
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
10
0.3
SW
7
0.3
SW
7
0.3
SE
12
0.4
SE
9
0.8
SE
6
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.7
ENE
10
0.9
ENE
10
0.7
ENE
9
0.8
ENE
9
1
ENE
10
1
SW
8
0.8
SW
8
0.8
SW
8
0.8
SW
8
0.8
SW
8
0.4
SE
11
0.4
SE
11
0.4
SW
7
0.3
SW
6
0.5
SE
11
Energy kJ
33
7
7
21
21
45
30
29
29
80
142
84
88
194
129
80
82
80
75
30
43
12
7
59
Swell 3
Height (m)
Direction
Period (s)
0.3
SW
7
0.2
SSE
12
0.3
SE
12
0.1
E
18
0.3
SE
11
0.4
SE
9
0.3
ESE
6
0.4
SE
11
0.3
ENE
12
0.6
SE
10
0.6
SE
10
0.5
NE
4
0.5
ENE
10
0.5
S
6
0.4
SE
10
0.4
SE
10
0.5
S
6
0.4
S
6
0.4
SE
10
0.1
E
15
0.1
S
10
0.1
E
15
0.1
E
15
0.1
SW
7
Energy kJ
7
14
22
6
20
21
8
31
28
57
61
10
63
18
35
35
19
12
36
4
2
4
4
2
Wind waves
Height (m)
Direction
Period (s)
0.9
SE
5
1.1
SE
5
1.3
SSE
5
1.6
SSE
5
1.6
S
6
1.7
SSW
6
2.1
SW
7
2.5
SW
7
2.5
SW
7
3
WSW
8
0.8
NNE
4
0.5
S
6
0.5
S
6
0.4
NE
3
2.2
NE
8
2.4
NE
9
2.1
NE
10
1.9
ENE
11
Energy kJ
32
47
80
138
157
189
370
645
658
1310
21
18
18
3
558
947
849
799
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
1
1
1
1
1
3
3
2
2
2
2
2
2
1
1
1
1
1
1
1
Distance (km)
43
24
127
540
87
189
519
519
30
0
0
0
0
0
0
24
6
35
35
231
279
554
554
43
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
3
4
4
4
2
2
2
3
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
2
3
3
3
3
3
2
3
4
4
4
3
3
3
3
2
1
1
1
1
3
1
Header Global
Rating
(10 max)
5
5
5
5
5
9
9
9
8
8
5
8
7
6
6
6
8
7
5
5
5
5
5
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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