Aoshima Harbour Surf Break

Lat Long: 31.80° N 131.47° E

Aoshima Harbour 48 hour detailed Surf Forecast

Issued: 2 pm 21 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.

Surf Forecasts:

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

  • Afternoon surf: Afternoon surf (21 Aug, local time) - 3ft (0.9m), 9s period with SSE swell.
  • Evening surf: Evening surf (21 Aug, local time) - 2.5ft (0.8m), 9s period with SSE swell.

The current surf forecast for Aoshima Harbour at 6PM is: 0.9m 9s primary swell from a South-southeast direction and 0.4m 9s secondary swell from a East-southeast direction (forecast issued at 02:00pm August 21). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Aug)--
Afternoon (21 Aug)3ft (0.9m)9s
Evening (21 Aug)2.5ft (0.8m)9s

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

16 DaysHourly
Print Table

Short Range Forecast

Light rain (total 4mm), mostly falling on Sat morning. Warm (max 28°C on Fri afternoon, min 26°C on Fri night). Wind will be generally light.

Fri
21
Saturday
22
Sunday
23
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)
0
0
0
1
1
1
1
0
0
0
0
1
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
Wave
Height (m)
Direction
Period (s)
0.9
SSE
9
0.9
SSE
9
0.9
SSE
9
0.8
SSE
9
0.8
SSE
9
0.8
S
9
0.7
S
9
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.7
E
10
0.7
E
10
Wave Graph
Metric surfscale
Energy kJ
132
129
129
103
106
99
73
70
70
70
71
71
73
71
70
71
73
78
106
108
Wind (km/h)
15
ESE
15
ESE
5
ESE
5
ESE
5
ENE
5
NE
5
ENE
10
E
15
E
10
E
10
E
5
NE
5
NE
10
NNE
10
NNE
10
NE
10
E
15
E
10
ESE
10
E
Wind State
cross-on
cross-on
cross-on
glassy
glassy
glassy
glassy
on
on
on
cross-on
glassy
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
High Tide
1:15PM1.55m
11:10PM1.79m
3:33PM1.65m
00:50AM1.73m
4:30PM1.80m
Low Tide
5:15PM1.43m
7:22AM0.69m
7:52PM1.52m
8:50AM0.59m
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
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
28
28
28
27
27
26
26
27
28
28
28
27
27
26
26
27
28
28
28
27
Feels °C
31
31
33
32
33
31
31
31
31
31
32
32
32
30
30
31
32
31
32
31
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  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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View detailed surf forecast for Aoshima Harbour at:
surf-forecast.com

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