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Surf Forecasts:
Aoshima Harbour surfForecast / Kyu Shu / Japan
16 Day Weather and Surf, issued 2 am Monday 20 Apr 2026 JSTForecast 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
20.9° 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 Monday (Apr 20) at 9PM. The primary swell is predicted to be 1.7m and 13s period with a secondary swell of 0.4m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Aoshima Harbour in the next 16 days are 2.1m 13s and forecast to arrive on Monday (Apr 20) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Thursday (Apr 23) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Mon 20th Apr) | 5.5ft (1.7m) 13s |
| Best Surf | 9PM (Mon 20th Apr) | 5.5ft (1.7m) 13s |
| Most Powerful | 9AM (Mon 20th Apr) | 7ft (2.1m) 13s |
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 31mm), heaviest during Wed night. Warm (max 20°C on Mon afternoon, min 15°C on Wed night). Winds increasing (light winds from the WNW on Mon night, fresh winds from the NNE by Tue morning). | Days 3-6 Weather Summary Heavy rain (total 38mm), heaviest during Thu morning. Very mild (max 19°C on Sat morning, min 15°C on Thu afternoon). Winds decreasing (strong winds from the NNE on Thu morning, calm by Fri morning). | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 12 | 12 | 12 | 11 | 10 | 10 | 11 | 10 | 7 | 7 | 8 | 8 | 7 | 9 | 9 | 9 | 9 | 7 | 10 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 1452 | 1255 | 715 | 569 | 411 | 345 | 313 | 254 | 227 | 138 | 338 | 178 | 168 | 140 | 108 | 108 | 106 | 101 | 74 | 39 | 96 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- off | cross- on | cross- on | cross- on | cross- on | on | on | cross- on | cross- on | cross- on | glass | cross- on | cross- off | glass | on | cross- on | on | cross- on | cross- on |
High Tide / height (m) | 8:35PM 1.76 | 7:31AM 1.84 | 9:26PM 1.65 | 8:03AM 1.74 | 10:30PM 1.54 | 8:43AM 1.61 | 11:57PM 1.49 | 9:44AM 1.46 | 1:29AM 1.52 | 11:46AM 1.36 | 2:30AM 1.60 | 1:48PM 1.41 | |||||||||
Low Tide / height (m) | 1:50PM -0.03 | 1:56AM 0.92 | 2:30PM 0.06 | 2:34AM 1.05 | 3:16PM 0.19 | 3:24AM 1.16 | 4:15PM 0.33 | 4:54AM 1.23 | 5:35PM 0.46 | 7:12AM 1.17 | 7:06PM 0.52 | 8:34AM 0.99 | 8:22PM 0.52 | ||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
| Sunrise | 5:41 | - | - | 5:39 | - | - | 5:37 | - | - | 5:37 | - | - | 5:35 | - | - | 5:35 | - | - | 5:33 | - | - |
| Sunset | - | 6:45 | - | - | 6:45 | - | - | 6:46 | - | - | 6:47 | - | - | 6:47 | - | - | 6:49 | - | - | 6:50 | - |
 |  |  | | | | |  |  |  |  |  | | |  |  | | | | |  | |
Rain (mm) | 4 | - | - | - | - | - | - | - | 27 | 27 | 4 | 4 | 1 | 2 | - | - | - | - | 4 | 4 | 9 |
| Temp. °C | 18 | 20 | 19 | 19 | 19 | 18 | 18 | 19 | 17 | 16 | 15 | 16 | 17 | 16 | 17 | 19 | 19 | 18 | 20 | 20 | 18 |
| Feels °C (?) | 18 | 20 | 20 | 19 | 12 | 15 | 17 | 17 | 14 | 12 | 10 | 15 | 16 | 15 | 17 | 16 | 16 | 17 | 17 | 16 | 14 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aoshima Harbour surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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