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.

Surf Forecasts:

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 
16 DaysHourly
Print Table

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
Nunoshima
Shikoku
Shida
Chiba
Ohara
Chiba
Big Ben
Chiba
Shimoda Yamatoken (Tatado Hama)
Shizuoka
Amatu
Chiba
Amatu
Chiba
Big Ben
Chiba
Amatu
Chiba
Kuminatu
Chiba
Uchiboso
Chiba
Uchiboso
Chiba
Uchiboso
Chiba
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Kaiser's (Hachijojima Island)
Izu Islands
Mera
Chiba
Mera
Chiba
Ikumi Beach
Shikoku
Gyongpo Beach
South Korea
Gyongpo Beach
South Korea
Aoshima Harbour
Kyu Shu
Omaezaki
Shizuoka
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
Uchiboso
Mera
Kamogawa
Kuminatu
Chikura
Tsurigasaki Surfing Beach (Tokyo 2020)
Tsurigasaki Surfing Beach (Tokyo 2020)
Chikura
Mera
Uchiboso
Uchiboso
Mera
Mera
Rating
(10 max)
1
2
3
2
2
2
2
2
1
1
1
1
1
Best forecast wave conditions in Japan
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Kamogawa
Chiba
Susuki
Shizuoka
Kuminatu
Chiba
Chikura
Chiba
Tsurigasaki Surfing Beach (Tokyo 2020)
Chiba
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Nunoshima
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Kaiser's (Hachijojima Island)
Izu Islands
Niyodo Rivermouth
Shikoku
Yasuda Rivermouth
Shikoku
Udo Shrine
Kyu Shu
Kaiser's (Hachijojima Island)
Izu Islands
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
Ahijedero
Mexico
Otago Peninsula - Allans Beach
New Zealand
Dunedin - Cob Cottage
New Zealand
Cobblestones
Australia
Boneyards
South Africa
Papatowai
New Zealand
Papatowai
New Zealand
Papatowai
New Zealand
Otago Peninsula - Allans Beach
New Zealand
Dinner Plates
New Zealand
Dinner Plates
New Zealand
Tora Point
New Zealand
Trial Harbour
Australia
Trial Harbour
Australia
Trial Harbour
Australia
Trial Harbour
Australia
Easter Reef
Australia
Hut Gulley
Australia
Amanzimtoti
South Africa
Left Point
Australia
Amanzimtoti
South Africa
Ahijedero
Mexico
Ahijedero
Mexico
Lebu
Chile
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)
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