Aoshima Harbour surfForecast / Kyu Shu / Japan

information circle48hr Weather and Surf, issued 8 am Wednesday 20 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Aoshima Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aoshima Harbour sea temperature is
23.1° C
(Which is normal for this time of year)

How big are the waves at Aoshima Harbour today?

The current surf forecast for Aoshima Harbour at 4PM is: 1.5m 8s primary swell from a Southeast direction and 1.0m 10s secondary swell from a East-southeast direction, 0.5m 7s secondary swell from a South direction (forecast issued at 08:00am May 20). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (20 May)3.5ft (1.1m)10s
Afternoon (20 May)5ft (1.5m)8s
Evening (20 May)4.5ft (1.3m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 14mm), heaviest on Thu morning. Warm (max 25°C on Wed morning, min 19°C on Thu night). Wind will be generally light.

Wednesday
20
Thursday
21
Friday
22
Sat
23
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)
2
2
1
0
1
2
2
2
2
1
0
0
2
2
2
2
1
1
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.9
ESE
10
1.1
ESE
10
1.5
SE
7
1.5
SE
8
1.4
ESE
10
1.3
ESE
10
1.3
ESE
10
1.2
ESE
10
0.9
ESE
10
1
ESE
10
1.3
S
7
1.5
S
7
1.8
S
7
1.5
S
7
1.4
SSW
7
1.2
SSW
7
0.7
ESE
10
1.1
SW
6
0.6
ESE
10
0.6
ESE
10
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
Wave Graph
Metric surfscale
Energy kJ
166
245
242
255
356
290
290
269
163
172
152
202
311
212
168
125
94
100
71
71
78
78
76
76
Wind (km/h)
0
SW
5
N
10
SE
20
SSE
20
S
15
SSW
10
SW
15
SW
15
SW
25
SSW
30
SSW
25
SSW
15
SW
20
WSW
20
WSW
15
W
15
WSW
5
WNW
15
ENE
15
ESE
15
ESE
10
E
15
NE
10
NNE
glassy
glassy
cross
cross
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
on
cross-on
cross-on
on
cross-on
cross-on
High Tide
7:13AM1.89m
9:21PM1.79m
7:53AM1.79m
10:14PM1.72m
8:42AM1.67m
11:13PM1.68m
Low Tide
2:17PM0.06m
2:35AM1.14m
3:02PM0.19m
3:32AM1.18m
3:54PM0.35m
light rain
rain showers
rain showers
part cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
mod rain
light rain
rain showers
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:13
5:13
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:06
7:07
7:07
7:07
4
1
1
9
2
1
Temp °C
22
23
25
25
25
23
23
22
22
25
23
23
24
22
21
19
19
23
23
23
22
22
21
21
26
26
28
25
26
25
25
23
23
25
22
23
25
22
20
18
19
24
22
23
21
23
20
21
Swell 1
Height (m)
Direction
Period (s)
1.2
SE
7
1.1
ESE
10
1.5
SE
7
1.5
SE
8
1.4
ESE
10
1.3
ESE
10
1.3
ESE
10
1.2
ESE
10
1.1
SSE
7
1
ESE
10
0.9
ESE
10
0.9
ESE
9
1.4
S
7
1.2
S
7
1
S
7
0.9
S
7
0.7
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
Energy kJ
128
245
242
255
356
290
290
269
105
172
129
126
187
135
92
69
94
71
71
71
78
78
76
76
Swell 2
Height (m)
Direction
Period (s)
0.9
ESE
10
1
SSE
6
0.9
ESE
6
1
ESE
10
0.9
SE
6
0.7
S
7
0.7
S
7
0.9
SSE
6
0.9
ESE
10
0.8
ESE
9
0.8
ESE
9
0.7
ESE
9
0.8
ESE
10
0.7
S
6
0.6
S
6
0.5
S
6
0.5
S
6
0.5
S
6
0.4
S
6
0.5
NE
6
0.4
NE
6
Energy kJ
166
80
56
183
59
44
44
68
163
100
100
92
103
38
27
19
18
17
11
17
11
Swell 3
Height (m)
Direction
Period (s)
0.6
E
9
0.9
SE
6
0.7
SE
6
0.6
SE
6
0.2
NNE
6
0.2
NNE
6
0.4
S
6
0.3
S
5
Energy kJ
61
56
39
32
3
4
10
5
Wind waves
Height (m)
Direction
Period (s)
1.3
SE
6
0.9
S
7
0.4
S
7
0.8
S
7
1
S
7
1
S
7
1.2
S
7
1.2
S
7
1
S
7
1.3
S
7
1.5
S
7
1.8
S
7
1.5
S
7
1.4
SSW
7
1.2
SSW
7
1.1
SW
6
Energy kJ
128
79
14
56
91
89
126
134
94
152
202
311
212
168
125
100
Nearest Offshore or Glassy
Rating
(10 max)
2
2
3
2
2
2
2
2
2
3
1
2
3
2
2
2
1
1
1
1
1
1
1
1
Distance (km)
0
0
19
284
297
0
0
0
0
284
330
630
3
0
0
0
0
0
22
284
39
39
39
19
Best forecast wave conditions in Kyu Shu
Rating
(10 max)
2
3
3
2
2
2
2
3
3
3
2
2
2
1
1
1
1
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
3
3
2
2
2
2
2
2
3
1
3
3
3
3
4
3
2
2
1
1
1
1
2
Header Global
Rating
(10 max)
4
5
5
5
5
4
4
5
5
5
5
5
5
5
4
4
4
4
5
7
7
7
7
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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