Surf Forecasts:
Aoshima surf forecast from 1 Sep 2026:
- Most powerful swell: Saturday 5 Sep, 6PM (local time) - 13ft (4.0m), 10s period, ENE swell with 2,940 kJ wave energy.
Best Forecast Surf Conditions for Aoshima this week:
The most powerful waves expected at Aoshima in the next 16 days are 4.0m 10s and forecast to arrive on Saturday (Sep 05) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Sep 06) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6PM (Sat 5th Sep) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Aoshima over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for Aoshima over the next couple of weeks. To be brutally honest, it's a grim stretch for the most part. There's a long, frustrating gap before we get to the only real window of quality. The first 13 days are a write-off, with poor conditions almost every day due to messy, cross-onshore winds and generally poor surf quality. We're talking mostly choppy, lumpy, or blown-out conditions from Tuesday the 1st right through to Monday the 14th. The combined swell energy is all over the place, hitting a massive 3261 on the 5th and 2161 on the 3rd, but the wind just ruins it every time. There are a couple of marginal windows, like the morning of the 12th, but even then, the wind is still cross-onshore and it's only a 2/10 call.
The Standout: Tuesday 15th – Wednesday 16th September
Finally, after all that rubbish, we get a proper pulse of energy. The morning of Tuesday the 15th is the absolute pick of the period. We've got a solid 12 ft groundswell rolling in from the east, with a very long period of 15 seconds. This is serious, powerful groundswell, and the combined energy is through the roof at 5297. The wind goes glassy – 0 mph – which is a major positive and will make for some incredibly clean, lined-up sets. This is a reef break, so that long-period swell is going to wrap in beautifully. However, at 12 ft, this is strictly for experienced surfers only. There's no water temperature anomaly to speak of here, so the water at 84° is just about average for this time of year.
The afternoon holds up nicely too, with a 10 ft east swell at 14 seconds and a light cross-offshore breeze keeping it clean. Wednesday the 16th morning is still excellent, with the swell dropping to a more manageable 6 ft from the east (12 seconds) and a glassy surface once again.
But don't get too excited about Saturday the 12th – that was just a teaser. The real deal is the 15th and 16th. Aoshima can get crowded, and on a day like the 15th, expect the crew to be out, but for those who can handle it, it'll be a session to remember.
So, to sum it up: ten days of frustration, then a brief, brilliant payoff. That's just how it goes sometimes.
Rusty
Short Range ForecastHeavy rain (total 68mm), heaviest during Thu night. Warm (max 28°C on Tue morning, min 25°C on Wed night). Winds increasing (light winds from the ENE on Tue night, strong winds from the NE by Thu afternoon). | Days 4-6 Weather SummaryHeavy rain (total 296mm), heaviest during Fri afternoon. Warm (max 26°C on Fri morning, min 24°C on Fri afternoon). Winds decreasing (gales from the NE on Fri afternoon, light winds from the N by Sun night). | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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) | SSE 8 | SSE 8 | SE 8 | SE 9 | SE 9 | SE 8 | SE 9 | ESE 10 | SE 9 | SE 9 | ENE 7 | ENE 8 | NE 9 | ENE 10 | ENE 10 | ENE 9 | E 8 | E 8 | E 9 | E 9 | ENE 9 |
Wave Graph | |||||||||||||||||||||
126 | 208 | 330 | 430 | 311 | 291 | 918 | 1593 | 649 | 571 | 512 | 1431 | 2179 | 1365 | 1310 | 600 | 309 | 224 | 351 | 465 | 1630 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 8:29PM2.09m | 9:23AM1.88m | 8:57PM2.02m | 10:22AM1.71m | 9:28PM1.93m | 11:55AM1.58m | 10:09PM1.81m | 2:33PM1.61m | 11:29PM1.70m | 3:55PM1.74m | 1:41AM1.69m | 4:33PM1.87m | |||||||||
Low Tide | 2:29PM0.81m | 3:01AM0.51m | 2:59PM1.00m | 3:46AM0.57m | 3:31PM1.20m | 4:45AM0.65m | 4:16PM1.39m | 6:11AM0.70m | 6:22PM1.53m | 7:54AM0.67m | 9:04PM1.46m | 9:12AM0.56m | 10:03PM1.30m | ||||||||
5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | |
— | 6:38 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:30 | — | |
mm | 2 | 2 | 5 | — | 7 | 8 | 6 | 9 | 29 | 56 | 190 | 4 | 2 | 2 | 27 | 7 | 2 | 6 | 6 | 3 | — |
Temp °C | 28 | 28 | 27 | 28 | 27 | 28 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 27 | 26 |
Feels °C | 31 | 30 | 30 | 31 | 29 | 30 | 23 | 24 | 26 | 28 | 21 | 21 | 21 | 21 | 24 | 27 | 27 | 29 | 26 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SE 8 | SE 9 | SE 9 | SE 8 | SE 9 | ESE 10 | SE 9 | SE 9 | SSE 9 | SE 8 | ENE 9 | S 8 | ENE 10 | ENE 9 | E 8 | E 8 | E 9 | E 9 | E 9 |
126 | 208 | 330 | 430 | 311 | 291 | 918 | 1593 | 649 | 571 | 422 | 118 | 1062 | 20 | 1310 | 600 | 309 | 224 | 351 | 465 | 1052 | |
Swell 2 Height (m) Direction Period (s) | E 14 | E 14 | E 12 | E 12 | E 11 | E 11 | E 10 | E 13 | — | E 16 | SE 9 | SSE 9 | S 7 | SE 7 | S 9 | S 8 | S 8 | S 8 | S 8 | SSE 8 | S 8 |
61 | 129 | 148 | 134 | 119 | 114 | 76 | 14 | — | 5 | 307 | 129 | 17 | 8 | 13 | 13 | 22 | 22 | 22 | 22 | 21 | |
Swell 3 Height (m) Direction Period (s) | E 11 | ENE 11 | — | SW 10 | E 18 | E 16 | E 18 | — | E 16 | E 16 | — | E 15 | SE 9 | — | SSW 10 | E 13 | SE 8 | E 12 | SE 10 | ESE 9 | — |
36 | 38 | — | 4 | 6 | 5 | 6 | — | 5 | 5 | — | 4 | 3 | — | 9 | 3 | 3 | 3 | 17 | 8 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | NE 5 | ENE 6 | — | ENE 10 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | NE 9 | ENE 10 | N 5 | N 6 | NW 3 | — | — | — | ENE 9 |
— | — | — | 5 | 25 | — | 352 | 554 | 369 | 163 | 512 | 1431 | 2179 | 1365 | 106 | 119 | 3 | — | — | — | 1630 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 359 | 50 | 48 | 38 | 50 | 38 | 283 | 75 | 117 | 283 | 50 | 117 | 283 | 696 | 288 | 283 | 75 | 20 | 48 | 117 | 38 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Aoshima Surf forecast
The above surf forecast table for Aoshima provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Aoshima can be found by selecting the local surf guide option on the grey menu. Our Aoshima 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) 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 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 is 14 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.











