Aoshima Harbour Surf Break

Lat Long: 31.80° N 131.47° E

Aoshima Harbour 48 hour detailed Surf Forecast

Issued: 2 am 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Aoshima Harbour sea temperature is
28.8° C
0.3° 

Aoshima Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Aoshima Harbour today (21 Aug):

  • Morning surf: Morning surf (21 Aug, local time) - 3ft (0.9m), 9s period with SSE swell.
  • Afternoon surf: Afternoon surf (21 Aug, local time) - 3ft (0.9m), 9s period with SSE swell.
  • Evening surf: Evening surf (21 Aug, local time) - 3ft (0.9m), 9s period with SSE swell.

The current surf forecast for Aoshima Harbour at 5AM is: 1.0m 9s primary swell from a South-southeast direction and 0.4m 9s secondary swell from a East-southeast direction (forecast issued at 02:00am August 21). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (21 Aug)3ft (0.9m)9s
Afternoon (21 Aug)3ft (0.9m)9s
Evening (21 Aug)3ft (0.9m)9s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Sat morning. Warm (max 28°C on Fri morning, min 26°C on Fri night). Wind will be generally light.

Friday
21
Saturday
22
Sunday
23
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
6 PM
9 PM
Rating
(10 max)
2
2
1
1
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
1.1
SSE
9
1
SSE
9
1
SSE
9
0.9
SSE
9
0.9
SSE
9
0.9
SSE
9
0.9
SSE
9
0.9
SSE
9
0.8
SSE
9
0.8
S
9
0.7
S
9
0.6
E
10
0.6
E
10
0.8
SSE
8
0.6
E
10
0.6
E
10
0.6
E
10
0.5
E
10
0.6
E
10
0.7
ESE
10
0.6
E
10
0.6
E
10
0.7
E
10
0.7
E
10
Wave Graph
Metric surfscale
Energy kJ
176
158
169
140
132
129
129
129
106
99
73
70
70
78
71
73
73
54
70
102
74
78
108
108
Wind (km/h)
5
NW
5
NNW
5
N
10
ENE
15
ESE
15
ESE
5
SE
5
SE
5
ESE
5
ENE
5
NNE
10
ENE
15
E
10
E
10
E
5
ENE
10
NE
10
NNE
15
N
15
NNE
10
E
15
E
10
E
5
E
Wind State
glassy
glassy
cross
on
cross-on
cross-on
cross-on
glassy
glassy
glassy
cross-on
on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
10:15PM1.88m
1:15PM1.55m
11:10PM1.79m
3:33PM1.65m
00:50AM1.73m
4:30PM1.80m
Low Tide
5:47AM0.70m
5:15PM1.43m
7:22AM0.69m
7:52PM1.52m
8:50AM0.59m
clear
clear
clear
part cloud
clear
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
thunderstorm
clear
clear
clear
clear
thunderstorm
clear
clear
thunderstorm
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:41
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:51
6:50
 mm
1
1
1
Temp °C
27
27
26
28
28
28
28
27
27
26
26
27
28
28
28
27
27
26
26
27
28
28
27
27
Feels °C
33
33
31
33
31
31
33
33
33
31
31
31
31
31
32
32
31
29
29
30
32
31
31
32
  • 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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aoshima Harbour surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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