Aoshima Harbour Surf Break

Lat Long: 31.80° N 131.47° E

Aoshima Harbour 48 hour detailed Surf Forecast

Issued: 8 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Aoshima Harbour sea temperature is
28.7° C
0.2° 

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 (20 Aug):

  • Morning surf: Morning surf (20 Aug, local time) - 2ft (0.6m), 8s period with SSE swell.
  • Afternoon surf: Afternoon surf (20 Aug, local time) - 3ft (0.9m), 9s period with SSE swell.
  • Evening surf: Evening surf (20 Aug, local time) - 3.5ft (1.1m), 9s period with SSE swell.

The current surf forecast for Aoshima Harbour at 2AM is: 0.8m 8s primary swell from a East direction and 0.4m 5s secondary swell from a South-southeast direction (forecast issued at 08:00pm August 19). The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (20 Aug)2ft (0.6m)8s
Afternoon (20 Aug)3ft (0.9m)9s
Evening (20 Aug)3.5ft (1.1m)9s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Wed night. Warm (max 28°C on Thu morning, min 26°C on Wed night). Wind will be generally light.

Wed
19
Thursday
20
Friday
21
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)
0
0
1
0
0
0
0
0
1
2
2
2
1
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
E
8
0.8
E
8
0.8
E
8
0.8
E
8
0.7
E
8
0.6
E
8
0.9
SSE
9
0.9
SSE
9
1
SSE
9
1.1
SSE
9
1.1
SSE
9
1
SSE
9
1
SSE
9
0.9
SSE
9
0.9
SSE
9
0.9
SSE
9
0.8
SSE
9
0.8
SSE
9
Wave Graph
Metric surfscale
Energy kJ
113
86
82
80
58
49
113
137
172
180
176
158
173
135
132
129
103
106
Wind (km/h)
10
E
10
E
5
E
5
N
10
N
10
NE
15
E
15
E
5
ESE
5
E
5
NE
5
NNW
10
NNW
10
NE
15
ENE
10
E
10
SE
5
SSE
Wind State
cross-on
cross-on
glassy
cross
cross
cross-on
cross-on
cross-on
cross-on
glassy
glassy
glassy
cross
cross-on
on
cross-on
cross-on
glassy
High Tide
9:38PM1.97m
11:12AM1.62m
10:15PM1.88m
1:15PM1.55m
Low Tide
3:33PM1.04m
4:34AM0.67m
4:11PM1.24m
5:47AM0.70m
5:15PM1.43m
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:52
6:52
 mm
1
1
1
Temp °C
27
27
27
27
26
28
28
28
28
27
27
26
26
27
28
28
28
27
Feels °C
31
32
32
32
30
32
31
31
33
33
33
31
31
31
31
31
32
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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