Surf Forecasts:
Aoshima Harbour surf forecast from 24 Jul 2026:
- Best quality surf: Saturday 25 Jul, 6PM (local time) - 1.5ft (0.4m), 10s period, SE swell with cross-offshore winds.
- Most powerful swell: Tuesday 28 Jul, 3AM (local time) - 2ft (0.6m), 10s period, ESE swell with 78 kJ wave energy.
- Next surfable swell (1★+): Saturday 25 Jul, 6PM (local time) - 1.5ft (0.4m), 10s period with SE 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 Saturday (Jul 25) at 6PM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.3m and 9s. 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 0.6m 10s and forecast to arrive on Tuesday (Jul 28) 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 0.7m 4s period and expected on Tuesday (Jul 28) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sat 25th Jul) | 1.5ft (0.4m) 10s |
| Best Surf | 6PM (Sat 25th Jul) | 1.5ft (0.4m) 10s |
| Most Powerful | 3AM (Tue 28th Jul) | 2ft (0.6m) 10s |
Table - best surf conditions forecast for Aoshima Harbour over the next 16 days.
The Lowdown
Alright, Rusty here with a look at the next couple of weeks for our local stretch.
Honestly, the first week and a half is a bit of a write-off for any decent waves. We’re looking at a long stretch of tiny, weak swell and mostly average to poor conditions. The combined wave energy is barely registering, often well under 100 (like 82), making for a flat, unexciting ocean. You might see a few ripples from the 1ft to 2ft swell, but with periods around 8 to 11 seconds and cross-onshore winds, it’s not worth getting wet for.
We do get a couple of glimmers right at the end of July and start of August. On Monday morning the 27th and Tuesday morning the 28th, the wind goes glassy. The swell is still tiny at 2ft from the ESE, but the combined energy ticks up a little (133 and 94). It’s surfable, but very ordinary. The same goes for Wednesday morning the 29th – another glassy session with tiny 2ft surf (83 combined energy). It’s something, but barely.
The real story, and the only standout in the whole window, arrives in the second week. From the 4th of August onwards, the Pacific starts to wake up properly. It gets big. The morning of Tuesday the 5th of August sees a jump to 6ft from the ESE with a very long 17-second period, and a combined energy that rockets up to 2193. That’s a serious pulse of energy. The wind is only a light cross-onshore, which is manageable. This is just the start.
The absolute best looking window shapes up for Friday the 7th of August. We’ve got a solid 12ft swell from the E with a colossal 18-second period. The combined energy is astronomical at 7301, meaning there will be a lot of power in the water. The wind is forecast to be light and glassy from the SSW. It’s a massive stand-out, but with a massive caveat: 12ft is only for experts. The swell is predicted to be too big for this break, so only the most experienced crew should even think about it. Even Saturday morning the 8th is still a chunky 10ft from the E with a 17-second period and light cross-offshore winds (4490 combined energy), but again, that’s a big, powerful groundswell that will be hard to handle.
For the beginner or intermediate surfer, there is nothing on offer in this 16-day window. For a handful of experts with big-wave boards, that Friday the 7th is a truly special, if daunting, prospect.
Take care of yourselves, and don't force it.
- Rusty
Short Range ForecastLight rain (total 6mm), mostly falling on Mon afternoon. Warm (max 31°C on Mon afternoon, min 27°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Thu afternoon. Warm (max 31°C on Tue afternoon, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SE 11 | SE 11 | SE 10 | S 9 | S 8 | S 8 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 30 | 29 | 25 | 40 | 50 | 49 | 59 | 57 | 57 | 55 | 55 | 56 | 56 | 56 | 55 | 37 | 51 | 28 | 28 | 28 | 28 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross-on | cross-on | off | glassy | cross | off | glassy | cross | cross-off | glassy | cross | cross-off | on | cross-on | cross-off | on | cross | cross-off |
High Tide | 4:37PM1.77m | 2:44AM1.85m | 5:22PM1.90m | 3:46AM1.93m | 5:58PM2.00m | 4:38AM2.01m | 6:31PM2.08m | 5:24AM2.09m | 7:00PM2.12m | 6:07AM2.14m | 7:28PM2.14m | 6:47AM2.16m | 7:56PM2.14m | ||||||||
Low Tide | 9:11AM0.49m | 9:32PM1.39m | 10:07AM0.35m | 10:33PM1.33m | 10:54AM0.23m | 11:19PM1.24m | 11:35AM0.14m | 11:58PM1.14m | 12:13PM0.10m | 00:33AM1.03m | 12:49PM0.12m | 1:07AM0.93m | 1:23PM0.19m | 1:42AM0.84m | |||||||
 |  |  | |  | | | |  | | | | | | | | | | | | | |
 | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — |
 | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — |
mm | — | 1 | — | — | 1 | — | — | 3 | 1 | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 30 | 30 | 29 | 30 | 30 | 29 | 30 | 31 | 28 | 30 | 31 | 29 | 31 | 31 | 29 | 30 | 30 | 29 | 30 | 31 | 29 |
Feels °C | 34 | 33 | 34 | 34 | 33 | 34 | 34 | 34 | 32 | 35 | 34 | 33 | 34 | 34 | 34 | 33 | 34 | 34 | 34 | 34 | 34 |
Swell 1 Height (m) Direction Period (s) | SE 11 | E 9 | SSE 7 | S 9 | S 8 | S 8 | S 8 | S 8 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
| kJ | 30 | 26 | 16 | 40 | 50 | 49 | 34 | 36 | 57 | 55 | 55 | 56 | 56 | 56 | 55 | 37 | 51 | 28 | 28 | 28 | 28 |
Swell 2 Height (m) Direction Period (s) | E 9 | SE 11 | SE 10 | ESE 10 | ESE 10 | ESE 11 | ESE 10 | ESE 10 | S 8 | S 8 | S 8 | S 5 | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | NE 4 |
| kJ | 26 | 29 | 25 | 39 | 42 | 45 | 59 | 57 | 36 | 32 | 21 | 7 | 10 | 10 | 4 | 4 | 4 | 4 | 1 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | ESE 16 | ESE 16 | E 9 | E 9 | E 9 | E 8 | ESE 14 | ESE 14 | SE 14 | SE 14 | ESE 13 | S 8 | ESE 13 | SE 13 | SSE 5 | E 13 | SE 5 | E 13 | E 12 | E 12 | S 7 |
| kJ | 26 | 25 | 15 | 14 | 13 | 12 | 40 | 19 | 8 | 7 | 17 | 11 | 17 | 7 | 3 | 3 | 1 | 3 | 3 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SSW 3 | — | S 3 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 118 | 0 | 18 | 326 | 0 | 0 | 118 | 0 | 0 | 118 | 0 | 0 | 118 | 0 | 41 | 912 | 19 | 22 | 312 | 22 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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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