Aoshima Harbour Surf Break

Lat Long: 31.80° N 131.47° E

Aoshima Harbour 48 hour detailed Surf Forecast

Issued: 8 am 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Aoshima Harbour sea temperature is
28.8° C
0.4° 

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 (19 Aug):

  • Morning surf: Morning surf (19 Aug, local time) - 2.5ft (0.8m), 8s period with E swell.
  • Afternoon surf: Afternoon surf (19 Aug, local time) - 3ft (0.9m), 8s period with E swell.
  • Evening surf: Evening surf (19 Aug, local time) - 2.5ft (0.8m), 8s period with E swell.

The current surf forecast for Aoshima Harbour at 2PM is: 0.9m 8s primary swell from a East direction and 0.4m 5s secondary swell from a South-southeast direction (forecast issued at 08:00am August 19). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (19 Aug)2.5ft (0.8m)8s
Afternoon (19 Aug)3ft (0.9m)8s
Evening (19 Aug)2.5ft (0.8m)8s

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


Short Range Forecast

Light rain (total 9mm), mostly falling on Wed afternoon. Warm (max 28°C on Wed morning, min 26°C on Wed night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
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
Rating
(10 max)
0
0
0
0
0
0
1
1
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
E
8
0.8
E
8
0.9
E
8
0.9
E
8
0.9
E
8
0.8
E
8
0.8
E
8
0.7
E
8
0.7
E
8
0.6
SSE
8
0.9
SSE
9
0.9
SSE
9
1.1
SSE
9
1.1
SSE
9
1
SSE
8
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
Wave Graph
Metric surfscale
Energy kJ
92
92
116
113
113
84
82
61
58
49
108
134
199
194
151
158
177
135
132
132
132
135
Wind (km/h)
5
ENE
10
NE
15
E
15
E
10
ESE
5
ESE
5
SE
5
N
10
N
10
NE
15
E
10
ESE
10
SE
5
SE
0
S
5
NW
5
NNW
5
NNE
10
E
10
ESE
10
SE
5
SSE
Wind State
on
on
on
cross-on
cross-on
cross-on
glassy
glassy
cross
cross-on
on
cross-on
cross-on
glassy
glassy
glassy
cross
cross-on
on
cross-on
cross
glassy
High Tide
10:00AM1.78m
9:38PM1.97m
11:12AM1.62m
10:15PM1.88m
1:15PM1.55m
Low Tide
3:41AM0.63m
3:33PM1.04m
4:34AM0.67m
4:11PM1.24m
5:47AM0.70m
5:15PM1.43m
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
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>
5:39
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
2
1
Temp °C
26
27
28
28
28
27
27
27
26
27
28
28
28
27
27
26
26
27
28
28
28
27
Feels °C
30
31
31
31
33
32
32
32
30
31
31
31
33
33
33
31
31
31
32
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 

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