Amatu Surf Break

Amatu 48 hour detailed Surf Forecast

Lat Long: 35.12° N 140.19° E

Issued: 2 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 (20 Jun):

  • Afternoon surf: Afternoon surf (20 Jun, local time) - 2.5ft (0.8m), 8s period with ENE swell.
  • Evening surf: Evening surf (20 Jun, local time) - 3ft (0.9m), 9s period with ENE swell.

The current surf forecast for Amatu at 9PM is: 0.9m 9s primary swell from a East-northeast direction and 0.3m 7s secondary swell from a Southwest direction, 1.1m 5s secondary swell from a Southeast direction (forecast issued at 02:00pm June 20). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (20 Jun)--
Afternoon (20 Jun)2.5ft (0.8m)8s
Evening (20 Jun)3ft (0.9m)9s

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 32mm), heaviest during Sat afternoon. Warm (max 27°C on Sun afternoon, min 18°C on Tue morning). Winds decreasing (fresh winds from the SW on Sun morning, calm by Sun night).

Sat
20
Sunday
21
Monday
22
Tue
23
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
6 AM
9 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
3
3
2
1
1
1
1
2
2
1
0
0
Swell
Height Map
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
9
0.8
ENE
8
0.8
ENE
8
0.9
ENE
9
0.9
ENE
10
1.9
SSE
6
2
S
6
2.2
SSW
6
2.2
SSW
7
2.2
SW
7
2.5
SW
8
2.2
SW
8
1.7
SW
8
1.6
SW
8
1.4
SW
8
1.2
SW
8
0.9
ENE
10
0.9
ENE
10
0.9
ENE
10
0.9
ENE
10
0.8
ENE
9
0.8
ENE
9
1.2
ENE
9
1.7
ENE
7
Wave Graph
Metric surfscale
Energy kJ
84
82
82
130
142
215
302
384
437
515
736
619
373
338
273
196
171
176
148
145
100
96
236
286
Wind (km/h)
20
SE
15
SE
20
SSE
15
SSE
30
SSE
35
S
30
SSW
35
SW
35
SW
35
SW
35
WSW
15
WSW
10
NNE
0
E
5
NNW
5
S
10
S
10
S
10
S
15
NW
20
N
20
NNE
30
NE
25
NE
Wind State
on
on
on
on
on
on
cross-on
cross-on
cross
cross
cross
cross
cross-off
glassy
glassy
on
on
cross-on
cross-on
off
off
cross-off
cross-off
cross-off
High Tide
9:25PM1.32m
8:37AM1.20m
10:00PM1.31m
9:57AM1.09m
10:37PM1.31m
Low Tide
2:29PM0.30m
3:08AM0.81m
3:12PM0.47m
4:21AM0.74m
3:58PM0.63m
5:38AM0.65m
thunderstorm
light rain
mod rain
mod rain
light rain
light rain
thunderstorm
cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
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
2
4
10
8
5
2
3
Temp °C
23
22
22
20
21
22
23
24
25
27
26
23
22
21
22
24
25
25
24
24
22
20
19
18
Feels °C
24
23
23
20
19
20
22
22
24
24
23
24
24
24
25
27
27
27
26
24
20
18
14
14
Swell 1
Height (m)
Direction
Period (s)
0.8
ENE
9
0.8
ENE
8
0.8
ENE
8
0.9
ENE
9
0.9
ENE
10
0.9
ENE
10
0.9
ENE
10
0.8
ENE
10
0.8
ENE
10
0.8
ENE
9
0.6
ENE
10
0.6
ENE
10
1.7
SW
8
1.6
SW
8
1.4
SW
8
1.2
SW
8
1.1
SW
8
1.1
SW
8
1
SW
8
0.9
SW
8
0.8
SW
8
0.8
SW
8
0.7
SW
8
0.5
SW
8
Energy kJ
84
82
82
130
142
148
135
107
103
98
71
72
373
338
273
196
171
176
135
118
95
69
57
28
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.3
SW
7
0.3
SW
7
0.1
E
18
0.3
SE
11
0.3
SE
11
0.3
SE
9
0.4
SE
9
0.4
SE
11
0.5
SE
9
0.6
ENE
9
0.8
ENE
10
0.8
ENE
9
0.9
ENE
10
0.9
ENE
10
0.9
ENE
10
0.9
ENE
10
0.9
ENE
10
0.8
ENE
9
0.8
ENE
9
0.5
SE
11
0.4
SE
11
Energy kJ
34
33
33
7
7
6
20
20
13
22
40
43
62
103
90
154
151
151
148
145
100
96
61
45
Swell 3
Height (m)
Direction
Period (s)
0.4
SW
7
0.3
SW
7
0.3
SW
7
0.2
SSE
12
0.1
E
18
0.3
SE
9
0.3
SE
9
0.3
SE
11
0.3
SE
11
0.3
ENE
12
0.4
ENE
12
0.5
ENE
12
0.6
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.5
S
6
0.4
S
6
0.4
SE
11
0.1
E
15
0.3
S
6
Energy kJ
16
7
7
14
6
14
13
20
19
28
44
75
63
35
35
35
35
35
16
10
42
4
6
Wind waves
Height (m)
Direction
Period (s)
0.8
SE
4
0.8
SE
4
0.9
SE
5
1.1
SE
5
1.4
SSE
5
1.9
SSE
6
2
S
6
2.2
SSW
6
2.2
SSW
7
2.2
SW
7
2.5
SW
8
2.2
SW
8
0.2
NNE
4
0.4
NNE
4
0.3
NNE
2
0.4
NE
4
1.2
ENE
9
1.7
ENE
7
Energy kJ
21
27
31
49
95
215
302
384
437
515
736
619
1
6
1
5
236
286
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
2
1
1
1
3
1
3
3
3
2
2
2
2
2
2
2
1
1
1
Distance (km)
190
190
24
24
189
540
87
73
68
86
30
6
0
0
0
12
24
24
24
0
0
582
40
231
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
3
1
3
3
3
4
4
2
2
2
2
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
3
4
3
1
3
2
3
3
3
4
4
2
2
2
3
2
1
1
1
Header Global
Rating
(10 max)
5
5
5
5
5
5
8
9
9
9
8
7
7
8
7
7
6
6
8
6
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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