Aoshima Harbour surfForecast / Kyu Shu / Japan

information circle16 Day Weather and Surf, issued 8 pm Monday 06 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
19.6° C
(Which is slightly cooler than normal)

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 Tuesday (Apr 07) at 12AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.3m and 6s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Aoshima Harbour in the next 16 days are 1.8m 8s and forecast to arrive on Tuesday (Apr 07) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 7s period and expected on Wednesday (Apr 08) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Tue 7th Apr)3ft (0.9m) 9s
Best Surf 6PM (Fri 10th Apr)5ft (1.6m) 7s
Most Powerful 9PM (Tue 7th Apr)6ft (1.8m) 8s

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 28mm), heaviest during Mon night. Very mild (max 19°C on Tue afternoon, min 10°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Fri morning. Warm (max 23°C on Fri morning, min 16°C on Sat night). Wind will be generally light.

Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
Sunday
12
Mon
13
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
0
1
0
0
0
0
0
0
0
1
2
2
1
0
1
0
0
1
1
2
Swell
Height Map
Wave Height (m) & direction (?)
0.9
ESE
0.8
ESE
1
S
1.4
NE
0.8
NE
0.9
NE
0.4
ESE
0.5
E
1
SE
1
SE
1.4
S
1.8
SSW
1.3
SSW
0.7
ESE
0.6
ESE
0.8
ESE
0.9
ESE
0.9
ESE
1
ESE
0.9
ESE
1
ESE
Period(s) (?)9987769105667799101111111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1131081172155962285151721443061638664114170197222202268
Wind
(km/h)
5
N
15
N
10
SSE
20
NNE
15
NNE
15
ENE
10
NW
20
SSE
25
S
20
SSW
20
SSW
15
SW
10
WSW
0
N
15
E
5
NNW
5
NNE
15
NE
5
SE
10
SSE
10
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on
crosscross-
on
cross-
on
oncross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
offglassonglasscross-
on
cross-
on
crosscrosscross-
off
High Tide
/ height (m)
9:01PM
1.67
8:01AM
1.77
9:57PM
1.53
8:33AM
1.67
11:18PM
1.43
9:14AM
1.53
1:15AM
1.42
10:35AM
1.39
2:40AM
1.51
1:04PM
1.35
3:25AM
1.61
2:42PM
1.46
3:58AM
1.70
3:44PM
1.62
Low Tide
/ height (m)
2:21AM
0.89
3:01PM
0.14
2:58AM
1.04
3:54PM
0.27
3:53AM
1.18
5:07PM
0.39
6:05AM
1.24
6:45PM
0.46
8:24AM
1.12
8:13PM
0.45
9:21AM
0.92
9:15PM
0.40
9:58AM
0.71
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
Sunday
12
Mon
13
Sunrise-5:56--5:54--5:52--5:52--5:50--5:50--5:48-
Sunset--6:37--6:37--6:37--6:38--6:38--6:39--6:40
heavy rain
light rain
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
light rain
light rain
light rain
part cloud
clear
cloud
part cloud
clear
clear
heavy rain
heavy rain
light rain
Rain (mm)
253-------134------11142
Temp. °C181719141313141819192322212120181920201819
Feels °C (?)171618989121315182323222119191821221920
  • Map Icons:
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  • 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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