Surf Forecasts:
Aoshima surf forecast from 6 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 12AM (local time) - 5ft (1.5m), 8s period, ESE swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 12AM (local time) - 10ft (3.0m), 10s period, ENE swell with 1,966 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 12AM (local time) - 5ft (1.5m), 8s period with ESE swell.
Best Forecast Surf Conditions for Aoshima this week:
The surf forecast for Aoshima over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 09) at 12AM. The primary swell is predicted to be 1.5m and 8s period with a secondary swell of 0.6m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Aoshima in the next 16 days are 3.0m 10s and forecast to arrive on Monday (Sep 07) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Wednesday (Sep 09) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 9th Sep) | 5ft (1.5m) 8s |
| Best Surf | 12AM (Wed 9th Sep) | 5ft (1.5m) 8s |
| Most Powerful | 12AM (Mon 7th Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Aoshima over the next 16 days.
The Lowdown
Righto, let's have a look at what Aoshima's got cookin' for us over the next couple of weeks.
First up, we gotta be straight with you – the start of this run is a write-off. Sunday the 6th kicks off with a messy 13 ft ENE swell, but a strong 22 mph NNE cross-onshore has got it all chopped up and lumpy. That big combined energy of 4472 is just wasted. You’d be mad to paddle out.
Monday the 7th and Tuesday the 8th are much the same story: moderate to fresh cross-onshore winds and a bunch of junky, short-period swell. Nothing to see here.
Now, here's a little glimmer. Wednesday morning, the 9th of September. We get a bit of a break. The wind drops right out, goes glassy. There's a small 4 ft ESE swell, but with that glassy surface, it'll be a fun little session for a beginner or someone with a longboard. The water's sitting at a warm 84°, which is pretty much bang on average for this time of year, so no surprises there.
But after that, it's back to average to poor conditions through the second week. There are a few days, like the 16th of September, where we get a touch of marginal surf, but it's usually accompanied by risk of thunderstorms or the wind is just a bit off. The 18th of September morning has a glassy 3 ft E swell, but it’s tiny and ordinary.
Honestly, for the whole 16-day run, there's no standout, proper session to get excited about. The swell energy stays low to moderate for the most part, and the wind hardly ever plays ball for a clean, lined-up wave. It’s a bit of a flat and grotty outlook for Aoshima. Sometimes you get these runs, and you just have to wait for the next forecast change. Keep an eye on it.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon morning. Warm (max 29°C on Wed afternoon, min 25°C on Sun night). Winds decreasing (fresh winds from the NE on Sun night, calm by Wed morning). | Days 5-7 Weather SummaryModerate rain (total 19mm), heaviest on Thu afternoon. Warm (max 28°C on Fri afternoon, min 24°C on Wed night). Winds decreasing (fresh winds from the NNE on Wed night, calm by Fri night). | ||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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) | E 10 | NE 9 | E 8 | ENE 8 | NE 6 | SE 9 | ESE 8 | ESE 8 | ESE 8 | SE 8 | E 7 | ENE 7 | NE 6 | SE 7 | SE 7 | SSE 8 | E 14 | E 14 | E 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 1966 | 732 | 358 | 167 | 206 | 210 | 280 | 206 | 145 | 136 | 212 | 135 | 83 | 79 | 74 | 114 | 99 | 95 | 134 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-off | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | glassy | cross-on | on | cross-on |
High Tide | 1:41AM1.69m | 4:33PM1.87m | 3:10AM1.79m | 5:01PM1.98m | 4:09AM1.94m | 5:28PM2.07m | 4:56AM2.07m | 5:52PM2.13m | 5:37AM2.18m | 6:17PM2.17m | 6:16AM2.24m | 6:41PM2.19m | |||||||
Low Tide | 9:04PM1.46m | 9:12AM0.56m | 10:03PM1.30m | 10:06AM0.45m | 10:41PM1.12m | 10:48AM0.37m | 11:13PM0.94m | 11:25AM0.33m | 11:44PM0.77m | 11:59AM0.34m | 00:14AM0.61m | 12:30PM0.40m | 00:44AM0.49m | ||||||
 |  |  | |  | |  |  |  | | | |  | |  | | | | | |
 | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | 6:32 | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — |
mm | — | 1 | — | — | — | 1 | — | — | 2 | — | 3 | 8 | 5 | — | 2 | 1 | — | — | 2 |
Temp °C | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 28 | 29 | 27 | 24 | 24 | 25 | 26 | 28 | 27 | 27 | 28 | 27 |
Feels °C | 25 | 27 | 27 | 28 | 27 | 28 | 28 | 33 | 31 | 27 | 23 | 25 | 27 | 31 | 32 | 32 | 30 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | E 10 | ENE 9 | S 11 | ESE 8 | ENE 8 | SE 9 | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | SE 7 | ENE 6 | SE 7 | SE 7 | SSE 8 | SSE 8 | SE 7 | SE 7 |
| kJ | 1586 | 474 | 82 | 117 | 196 | 210 | 280 | 206 | 145 | 136 | 79 | 65 | 55 | 79 | 69 | 114 | 74 | 56 | 59 |
Swell 2 Height (m) Direction Period (s) | SSW 8 | SE 9 | E 11 | SSE 9 | SSE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 17 | ESE 10 | ESE 9 | SE 7 | ENE 6 | E 15 | E 14 | E 14 | E 14 | E 14 |
| kJ | 14 | 115 | 9 | 68 | 168 | 20 | 78 | 34 | 33 | 24 | 52 | 48 | 60 | 12 | 74 | 96 | 99 | 95 | 134 |
Swell 3 Height (m) Direction Period (s) | — | S 10 | ESE 11 | E 11 | ESE 10 | ESE 10 | E 19 | E 19 | E 18 | S 8 | E 16 | E 16 | ESE 9 | E 15 | ENE 6 | ENE 6 | ESE 10 | ESE 10 | ESE 10 |
| kJ | — | 31 | 12 | 9 | 20 | 20 | 7 | 7 | 6 | 11 | 21 | 21 | 28 | 69 | 6 | 8 | 31 | 31 | 31 |
Wind waves Height (m) Direction Period (s) | ENE 10 | NE 9 | E 8 | ENE 8 | NE 6 | ENE 7 | — | — | NE 6 | NE 5 | E 7 | ENE 7 | NE 6 | — | — | — | NE 6 | NE 6 | E 5 |
| kJ | 1966 | 732 | 358 | 167 | 206 | 134 | — | — | 33 | 28 | 212 | 135 | 83 | — | — | — | 13 | 8 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 117 | 48 | 50 | 50 | 48 | 48 | 38 | 2 | 0 | 60 | 38 | 38 | 38 | 23 | 20 | 50 | 23 | 48 | 50 |
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.
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