Aoshima Harbour surfForecast / Kyu Shu / Japan

information circle16 Day Weather and Surf, issued 2 am Thursday 30 Apr 2026 JST
Forecast update in hr  min  s Forecast update imminent
Aoshima Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aoshima Harbour sea temperature is
21.9° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Aoshima Harbour this week:

The surf forecast for Aoshima Harbour over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 01) at 12AM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 1.1m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Aoshima Harbour in the next 16 days are 2.1m 7s and forecast to arrive on Monday (May 04) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Sunday (May 03) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 1st May)5ft (1.6m) 8s
Best Surf12AM (Mon 4th May)7ft (2.1m) 7s
Most Powerful12AM (Mon 4th May)7ft (2.1m) 7s

Table - best surf conditions forecast for Aoshima Harbour over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 53mm), heaviest during Thu morning. Warm (max 22°C on Sat afternoon, min 14°C on Fri night). Winds decreasing (fresh winds from the WNW on Fri morning, light winds from the SSW by Sat morning).

Days 4-6 Weather Summary

Heavy rain (total 23mm), heaviest during Sun night. Warm (max 22°C on Sun morning, min 14°C on Mon night). Winds decreasing (fresh winds from the S on Sun morning, calm by Tue morning).

Thursday
30
Friday
1
Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
2
0
0
0
1
0
1
0
0
3
2
1
1
1
0
1
0
0
1
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.9
NE
5
1.6
ENE
7
1.6
E
8
0.9
ENE
8
0.7
E
8
0.4
SE
10
0.4
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
9
2.1
SSW
7
1.3
SSW
7
0.5
ESE
10
0.5
ESE
9
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.7
ESE
10
0.8
ESE
10
0.8
ESE
9
Wave Graph
Metric surfscale
Energy kJ
49
237
283
107
66
24
38
55
56
52
48
456
158
52
50
75
80
75
94
105
100
Wind (km/h)
25
NE
10
ENE
10
W
25
WNW
30
WNW
15
W
5
SSW
20
S
10
SW
20
SSW
30
SSW
25
WSW
10
W
15
WNW
10
WNW
5
N
15
SE
5
WNW
10
NNE
10
ENE
5
WNW
cross-on
on
off
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
off
off
cross-off
cross-off
glassy
cross
cross-off
cross-on
on
cross-off
High Tide
5:28PM1.91m
5:09AM1.94m
6:08PM1.96m
5:36AM1.97m
6:48PM1.96m
6:04AM1.97m
7:28PM1.92m
6:33AM1.95m
8:11PM1.85m
7:04AM1.90m
8:58PM1.76m
7:37AM1.82m
9:53PM1.67m
Low Tide
11:05AM0.18m
11:19PM0.59m
11:38AM0.04m
11:53PM0.66m
12:12PM-0.05m
00:25AM0.75m
12:46PM-0.09m
00:58AM0.86m
1:23PM-0.07m
1:33AM0.96m
2:01PM0.00m
2:11AM1.06m
2:45PM0.11m
2:59AM1.15m
heavy rain
heavy rain
rain showers
clear
clear
part cloud
clear
part cloud
clear
part cloud
light rain
rain showers
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:30
5:28
5:28
5:26
5:26
5:24
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:53
6:54
6:54
6:55
6:57
34
17
2
1
22
Temp °C
17
18
19
19
20
16
21
22
19
22
22
22
20
21
16
18
19
18
19
20
20
17
17
19
11
13
13
18
18
17
18
18
22
18
19
13
15
15
17
18
18
20
Swell 1
Height (m)
Direction
Period (s)
0.2
E
9
1.1
ENE
7
1.6
E
8
0.9
ENE
8
0.7
E
8
0.4
ENE
8
0.4
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
9
1.6
S
7
0.9
S
7
0.7
S
6
0.5
ESE
9
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.7
ESE
10
0.8
ESE
10
0.8
ESE
9
Energy kJ
7
111
283
107
66
20
38
55
56
52
48
261
72
40
50
75
80
75
94
105
100
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
8
0.3
SE
9
1.1
S
8
0.7
S
7
0.4
SE
10
0.4
SE
10
0.3
E
8
0.2
E
9
0.1
E
12
0.5
ESE
9
0.5
ESE
10
0.5
ESE
10
0.5
S
6
0.3
SSE
6
0.3
SSE
6
0.2
S
5
0.1
S
5
Energy kJ
6
13
153
47
24
24
12
6
3
48
52
52
20
8
7
2
1
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
11
0.3
SE
9
0.4
SE
8
0.3
S
6
0.1
S
6
0.1
S
6
0.1
SW
7
0.2
W
3
0.1
W
7
Energy kJ
4
13
18
7
1
1
2
1
1
Wind waves
Height (m)
Direction
Period (s)
0.9
NE
5
1.6
ENE
7
0.5
WSW
3
0.6
W
3
0.2
WSW
3
0.3
S
2
0.3
SSW
3
0.5
S
3
1.2
S
5
2.1
SSW
7
1.3
SSW
7
0.3
W
2
0.6
W
3
0.2
WSW
3
Energy kJ
49
237
5
8
1
1
2
6
79
456
158
1
8
1
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
1
1
1
1
1
1
1
1
3
2
1
1
1
1
1
1
1
1
Distance (km)
326
49
0
3
118
1
0
284
0
284
1197
0
0
0
0
0
118
0
19
49
0
Best forecast wave conditions in Kyu Shu
Rating
(10 max)
2
3
2
1
1
1
1
3
2
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
3
4
2
1
1
1
1
1
3
3
3
1
1
2
1
1
1
1
Header Global
Rating
(10 max)
6
5
5
6
5
5
9
7
4
4
4
4
5
4
5
5
5
5
5
9
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Aoshima Harbour Surf forecast

The above surf forecast table for Aoshima Harbour provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Aoshima Harbour can be found by selecting the local surf guide option on the grey menu. Our Aoshima Harbour surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Aoshima Harbour) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Aoshima Harbour may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Aoshima Harbour is 15 km (9 miles) from Miyazaki-shi. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Miyazaki-shi. Miyazaki-shi has rooms for a wide range of budgets as well as car hire and transport links.

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