Amatu Surf Break

Amatu 48 hour detailed Surf Forecast

Lat Long: 35.12° N 140.19° E

Issued: 8 am 21 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) - 7.5ft (2.3m), 7s period with SW swell.
  • Evening surf: Evening surf (21 Jun, local time) - 6.5ft (2.0m), 8s period with SW swell.

The current surf forecast for Amatu at 1PM is: 2.2m 7s primary swell from a Southwest direction and 0.8m 10s secondary swell from a East-northeast direction, 0.4m 9s secondary swell from a Southeast direction (forecast issued at 08:00am June 21). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (21 Jun)5.5ft (1.7m)6s
Afternoon (21 Jun)7.5ft (2.3m)7s
Evening (21 Jun)6.5ft (2.0m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 5mm), mostly falling on Sun morning. Warm (max 27°C on Sun afternoon, min 18°C on Mon night). Winds decreasing (fresh winds from the SW on Sun morning, light winds from the NE by Mon morning).

Sunday
21
Monday
22
Tuesday
23
Wed
24
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)
0
0
0
0
0
2
3
2
2
2
1
0
1
2
2
2
3
2
2
3
2
3
2
2
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
10
1.7
SSW
6
2.1
SW
7
2.3
SW
7
2.5
SW
8
2
SW
8
1.6
SW
8
1.4
SW
8
1
ENE
10
1.1
NE
10
1.2
ENE
10
1.3
ENE
10
1.3
ENE
10
1.3
ENE
10
1.4
ENE
10
1.4
ENE
10
2
NE
10
1.7
ENE
10
1.7
ENE
10
2
ENE
10
1.6
ENE
10
1.6
ENE
10
1.5
ENE
10
1.5
ENE
10
Wave Graph
Metric surfscale
Energy kJ
148
175
370
589
769
519
381
262
225
234
267
302
290
284
356
363
753
522
533
756
482
461
391
383
Wind (km/h)
30
SSW
35
SW
35
SW
35
SW
30
WSW
20
N
15
NNW
10
NNW
15
NNE
10
NE
15
ENE
20
ENE
20
NE
10
NE
10
NNE
15
NNE
20
NNE
15
NE
15
NE
15
ENE
15
ENE
10
NE
10
NE
15
NE
Wind State
cross-on
cross-on
cross
cross
cross
cross-off
off
off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
High Tide
8:37AM1.20m
10:00PM1.31m
9:57AM1.09m
10:37PM1.31m
11:44AM1.03m
11:19PM1.30m
Low Tide
3:08AM0.81m
3:12PM0.47m
4:21AM0.74m
3:58PM0.63m
5:38AM0.65m
4:51PM0.77m
thunderstorm
thunderstorm
cloud
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
cloud
part cloud
part cloud
part 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
4:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:55
6:57
6:57
 mm
2
2
2
1
Temp °C
23
24
25
27
25
23
21
20
20
22
23
21
20
20
20
19
18
20
21
21
20
19
19
19
Feels °C
22
22
23
25
23
23
21
20
20
22
23
20
18
20
21
19
17
20
20
20
20
19
19
19
Swell 1
Height (m)
Direction
Period (s)
0.9
ENE
10
0.9
ENE
10
0.8
ENE
10
0.8
ENE
9
0.6
ENE
10
2
SW
8
1.6
SW
8
1.4
SW
8
1
SW
8
1.1
NE
10
1.2
ENE
10
1.3
ENE
10
1.3
ENE
10
1.3
ENE
10
1.4
ENE
10
1.4
ENE
10
1.5
ENE
10
0.5
SE
11
0.5
SE
11
1.7
ENE
10
1.6
ENE
10
1.6
ENE
10
1.5
ENE
10
1.5
ENE
10
Energy kJ
148
135
103
98
71
519
381
262
136
234
267
302
290
284
356
363
411
61
60
506
482
461
391
383
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
9
0.5
ESE
6
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.7
ENE
10
0.8
ENE
10
0.7
ENE
9
1
ENE
10
0.9
SW
8
0.9
SSW
8
0.6
SW
8
0.6
SW
8
0.5
SW
8
0.5
SW
8
0.5
SW
7
0.5
SE
11
0.4
SW
7
0.4
SW
7
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
Energy kJ
21
21
29
29
29
96
103
84
225
112
112
50
37
29
28
25
60
12
11
60
59
55
56
57
Swell 3
Height (m)
Direction
Period (s)
0.3
SE
11
0.4
SE
9
0.3
ESE
6
0.3
SE
11
0.3
ENE
12
0.4
SE
9
0.4
SE
10
0.5
NE
5
0.6
S
7
0.6
S
6
0.4
SE
10
0.5
S
6
0.4
S
6
0.5
SE
10
0.5
SE
10
0.5
SE
11
0.5
SW
7
0.1
S
10
0.1
S
10
0.2
WSW
7
0.2
S
5
0.2
S
5
0.2
S
5
0.2
S
5
Energy kJ
20
29
8
19
28
31
35
12
31
30
35
20
12
49
51
57
24
2
2
4
2
2
2
2
Wind waves
Height (m)
Direction
Period (s)
1.5
S
6
1.7
SSW
6
2.1
SW
7
2.3
SW
7
2.5
SW
8
3
WSW
8
0.6
NE
4
0.8
NNE
5
0.7
NNE
5
0.6
NNE
6
0.6
NE
4
2
NE
10
1.7
ENE
10
1.7
ENE
10
2
ENE
10
Energy kJ
144
175
370
589
769
1375
10
27
26
22
11
753
522
533
756
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
4
3
3
2
2
2
1
1
2
2
2
2
1
3
1
1
3
3
2
2
Distance (km)
75
69
87
30
30
16
0
0
0
0
35
40
231
0
0
0
40
6
538
87
16
0
0
0
Best forecast wave conditions in Chiba
Rating
(10 max)
2
4
3
3
4
2
2
2
1
2
2
2
1
3
3
3
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
4
2
3
4
3
3
4
2
2
3
1
2
2
2
2
2
3
1
1
3
3
2
2
Header Global
Rating
(10 max)
5
9
9
9
8
8
7
7
7
6
6
6
7
6
5
5
5
5
5
6
5
5
6
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
How to use the Wavefinder 

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