Aoshima Harbour Surf Break

Lat Long: 31.80° N 131.47° E

Aoshima Harbour 48 hour detailed Surf Forecast

Issued: 2 am 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Aoshima Harbour sea temperature is
28.9°C
0.8° 

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 (04 Sep):

  • Morning surf: Morning surf (04 Sep, local time) - 5.5ft (1.7m), 10s period with SSE swell.
  • Afternoon surf: Afternoon surf (04 Sep, local time) - 5ft (1.6m), 10s period with S swell.
  • Evening surf: Evening surf (04 Sep, local time) - 7ft (2.1m), 7s period with ENE swell.

The current surf forecast for Aoshima Harbour at 9AM is: 1.7m 10s primary swell from a South-southeast direction and 1.5m 9s secondary swell from a East-southeast direction (forecast issued at 02:00am September 04). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (04 Sep)5.5ft (1.7m)10s
Afternoon (04 Sep)5ft (1.6m)10s
Evening (04 Sep)7ft (2.1m)7s

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


Short Range Forecast

Heavy rain (total 244mm), heaviest during Sun morning. Warm (max 26°C on Fri morning, min 22°C on Fri afternoon). Winds decreasing (near gales from the NNE on Fri afternoon, light winds from the NNW by Sun night).

Friday
4
Saturday
5
Sunday
6
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)
1
2
1
1
3
0
0
0
0
0
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)
2.5
SE
10
2.4
SE
10
2.4
SSE
10
1.7
SSE
10
1.7
S
10
1.6
S
10
2.4
NE
7
2.1
ENE
7
2.1
ENE
8
3.5
ENE
10
3
NE
9
2.5
NE
8
1.5
ENE
8
1.4
ENE
8
1.6
E
8
1.8
E
8
2
E
8
1.9
E
7
1.8
E
8
2.5
E
8
3
E
9
3.5
E
10
3.5
E
10
4
ENE
11
Wave Graph
Metric surfscale
Energy kJ
1178
1172
1138
586
573
484
604
443
509
2444
1292
813
284
284
341
391
458
389
358
756
1531
2162
2420
4121
Wind (km/h)
15
ESE
15
SE
15
ESE
15
SE
15
S
55
NNE
45
NNE
40
NE
45
ENE
40
NE
40
NNE
20
E
25
ENE
25
ENE
30
ENE
30
ENE
30
ENE
35
NE
35
NNE
40
NE
35
NE
40
NE
35
NE
35
NE
Wind State
cross-on
cross-on
cross-on
cross
cross-off
cross-on
cross-on
cross-on
on
on
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
on
on
on
High Tide
9:28PM1.93m
11:55AM1.58m
10:09PM1.81m
2:33PM1.61m
11:29PM1.70m
3:55PM1.74m
Low Tide
4:45AM0.65m
4:16PM1.39m
6:11AM0.70m
6:22PM1.53m
7:54AM0.67m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
mod rain
thunderstorm
thunderstorm
thunderstorm
mod rain
mod rain
thunderstorm
thunderstorm
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:35
6:34
6:32
 mm
4
4
5
17
25
25
14
13
22
16
12
13
7
7
7
5
7
6
4
34
3
2
2
2
Temp °C
27
27
27
26
26
22
23
22
23
24
23
25
25
26
26
26
26
26
25
26
26
26
25
26
Feels °C
30
31
30
30
30
15
19
18
19
22
20
26
26
27
26
26
26
25
23
24
25
24
23
24
  • 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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