Surf Forecasts:
Aoshima Harbour surf forecast from 15 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 12AM (local time) - 2ft (0.6m), 12s period, E swell with cross-offshore winds.
- Most powerful swell: Wednesday 22 Jul, 3AM (local time) - 3ft (0.9m), 12s period, E swell with 232 kJ wave energy.
- Next surfable swell (1★+): Thursday 16 Jul, 3AM (local time) - 1.5ft (0.4m), 10s period with ESE swell.
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 Thursday (Jul 16) at 3AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.4m and 10s. 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 0.9m 12s and forecast to arrive on Wednesday (Jul 22) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Jul 16) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 16th Jul) | 1.5ft (0.4m) 10s |
| Best Surf | 12AM (Wed 22nd Jul) | 2ft (0.6m) 12s |
| Most Powerful | 3AM (Wed 22nd Jul) | 3ft (0.9m) 12s |
Table - best surf conditions forecast for Aoshima Harbour over the next 16 days.
The Lowdown
Alright crew, Rusty here. Let's be real, the next couple of weeks are looking pretty flat and fluky. A lot of small, weak surf and junky wind. We've got a couple of windows, but you've got to be patient.
The first few days, from Thursday the 16th through Wednesday the 23rd of July, are all about tiny 1ft to 3ft ESE swell. The energy is weak, with the combined swell energy reading between 58 and 219 (moderate). Most mornings are glassy, which is a cruel tease because the waves are just too small. The afternoons get blown out.
The best of this early period is Wednesday morning, the 22nd. Aoshima Harbour gets a 3ft E swell with a 12-second period. The combined energy hits 219 (moderate), and the wind is glassy. It's still small, but it's the cleanest window of the early stretch. This spot is fairly consistent, but at this size, it's for the longboarders.
Now, for the real deal. A big pulse of energy shows up late in the forecast. On Monday the 27th of July, the swell builds, but it's messy. The window is Tuesday the 28th and Wednesday the 29th. A solid 8ft SSE groundswell rolls in with a 14-second period. The combined energy is massive, hitting a very strong 2408. This is big, powerful surf. This is expert-only territory – anything over 8ft is for the experienced. The wind is a cross-on, which will put some texture on the face, but the power is undeniable. The 8ft SSE swell with a 14-second period is a proper long-period groundswell. For a beach/jetty setup, a long period like that can make the waves wall up, but the size will create some fun corners. This is the standout, but it's a week and a half out, so don't set your watch to it.
Water temp is about normal for this time of year.
So, the call is the tiny, clean Wednesday the 22nd for a mellow session, and the heavy, big swell target is Tuesday the 28th and Wednesday the 29th. Crowds are possible at Aoshima Harbour, especially if that big swell delivers.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Fri afternoon. Warm (max 34°C on Thu afternoon, min 26°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 29°C on Sun morning, min 26°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wed 22 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 9 | ESE 9 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | E 9 | E 12 | E 12 | E 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 33 | 31 | 29 | 29 | 47 | 45 | 60 | 58 | 57 | 57 | 55 | 60 | 60 | 58 | 89 | 83 | 80 | 80 | 107 | 216 | 199 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | off | glassy | cross-on | glassy | glassy | cross-on | cross-off | glassy | cross | cross-off | cross-on | on | glassy | cross-on | cross | cross-off | glassy | cross |
High Tide | 6:28AM2.11m | 7:59PM2.10m | 7:10AM2.09m | 8:29PM2.09m | 7:52AM2.04m | 9:00PM2.05m | 8:37AM1.95m | 9:31PM2.01m | 9:27AM1.84m | 10:04PM1.96m | 10:26AM1.70m | 10:41PM1.91m | 11:45AM1.58m | ||||||||
Low Tide | 00:58AM1.06m | 1:15PM0.09m | 1:34AM0.99m | 1:50PM0.18m | 2:12AM0.92m | 2:26PM0.31m | 2:52AM0.87m | 3:01PM0.49m | 3:35AM0.83m | 3:38PM0.68m | 4:26AM0.80m | 4:17PM0.90m | 5:27AM0.77m | 5:06PM1.11m | |||||||
 |  |  | | |  |  | | |  | | | | | | | | | | |  | |
 | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — |
 | 7:21 | — | 7:20 | — | — | 7:20 | — | — | 7:19 | — | — | 7:19 | — | — | 7:17 | — | — | 7:17 | — | — | 7:16 |
mm | — | — | — | — | — | 4 | 1 | — | — | — | — | — | — | — | 2 | — | — | 1 | — | — | 1 |
Temp °C | 28 | 33 | 34 | 28 | 29 | 29 | 27 | 30 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 29 | 28 | 29 | 30 |
Feels °C | 31 | 37 | 39 | 33 | 35 | 33 | 32 | 33 | 34 | 33 | 34 | 33 | 32 | 34 | 34 | 34 | 32 | 33 | 33 | 34 | 33 |
Swell 1 Height (m) Direction Period (s) | S 8 | SSW 8 | SSW 8 | ESE 9 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | E 9 | E 10 | E 12 | E 11 |
| kJ | 31 | 19 | 22 | 29 | 47 | 45 | 60 | 58 | 57 | 57 | 55 | 60 | 60 | 58 | 89 | 83 | 80 | 80 | 92 | 216 | 199 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 9 | S 7 | S 7 | S 7 | S 7 | S 7 | SSW 7 | SSW 5 | SSE 8 | SSE 8 | SSW 4 | SE 9 | SE 8 | SE 8 | SE 8 | E 14 | E 12 | SE 8 | SE 8 |
| kJ | 33 | 31 | 29 | 10 | 9 | 4 | 4 | 4 | 9 | 4 | 6 | 6 | 3 | 3 | 3 | 3 | 3 | 16 | 107 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | SE 10 | ESE 9 | ESE 9 | — | ESE 9 | SE 9 | E 15 | SE 9 | SE 9 | SSE 8 | S 7 | S 6 | — | S 7 | S 7 | S 7 | S 7 | SE 8 | SE 8 | S 7 | S 7 |
| kJ | 16 | 8 | 8 | — | 8 | 3 | 4 | 3 | 12 | 6 | 3 | 1 | — | 1 | 1 | 4 | 1 | 3 | 3 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | WSW 2 | SW 5 | SW 5 | — | — | — | SW 7 | SW 4 | SSW 4 | — | — | SSW 3 | — | — | — | — | — | — | — | — | ENE 5 |
| kJ | 1 | 27 | 32 | — | — | — | 23 | 3 | 6 | — | — | 2 | — | — | — | — | — | — | — | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 19 | 0 | 41 | 0 | 0 | 19 | 0 | 0 | 19 | 0 | 9 | 22 | 0 | 19 | 312 | 0 | 0 | 312 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- 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.
Nearest