
Surf Forecasts:
Aoshima surf forecast from 5 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 3AM (local time) - 4.5ft (1.3m), 8s period, ESE swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 6PM (local time) - 15ft (4.5m), 11s period, ENE swell with 4,501 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 3AM (local time) - 4.5ft (1.3m), 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 3AM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.6m and 10s. Another secondary swell of 1.2m and 6s is also forecast. 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 4.5m 11s and forecast to arrive on Sunday (Sep 06) 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 0.8m 6s period and expected on Thursday (Sep 10) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 9th Sep) | 4.5ft (1.3m) 8s |
| Best Surf | 3AM (Wed 9th Sep) | 4.5ft (1.3m) 8s |
| Most Powerful | 6PM (Sun 6th Sep) | 15ft (4.5m) 11s |
Table - best surf conditions forecast for Aoshima over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what’s on the menu for Aoshima over the next couple of weeks.
Honestly, this is a tough stretch to be a surfer around here. The whole outlook is a grim run of messy, blown-out conditions and only tiny waves. We’re looking at a seriously long gap of no good surf, with the first real glimmer not showing up until almost two weeks from now.
The water is sitting at 84°, which is pretty much spot-on average for this time of year, so no surprises there.
The only few moments that are even worth talking about are right at the tail end. On Wednesday, September 16th, the morning session could actually be alright. We’re looking at a tiny 3 ft swell from the ESE with a period of 9 seconds (weak energy at 256), but the wind goes glassy. That’s the kind of clean, glassy surface that makes even small waves fun. The afternoon on the 16th gets a 2 ft from the E with a longer 13-second period (231 energy) and a clean cross-offshore breeze. That long period on a tiny reef wave could give you some clean little lines.
Then Thursday, September 17th, the morning is flat with 3 ft from the E (12-second period, 191 energy) and the wind is totally calm. Again, glassy, but it’s tiny. This is the best it gets, and it’s far from a standout.
For the whole first week and a half, it’s mostly onshore winds with small to moderate swell but terrible conditions. The biggest push comes Sunday, September 7th, with a 12 ft swell from the E (strong energy at 2244) and a 10-second period, but it’s a strong cross-onshore mess. That’s more of a kite-surfing setup than a paddle-surfing one. For beginners, anything over 5 ft is too big, and that day is way beyond that with horrible wind.
Bottom line: don’t get your hopes up. If you’re desperate, pencil in the morning of Wednesday, September 16th for some glassy small-wave fun. Everything else is a no-go.
- Rusty
Short Range ForecastHeavy rain (total 49mm), heaviest during Sat afternoon. Warm (max 28°C on Mon afternoon, min 25°C on Sat afternoon). Winds decreasing (strong winds from the NNE on Sun afternoon, light winds from the NNE by Tue morning). | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Thu afternoon. Warm (max 29°C on Wed morning, min 24°C on Wed night). Winds increasing (light winds from the NW on Tue night, strong winds from the NNE by Wed night). | |||||||||||||||||||
Sat 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
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) | ENE 8 | E 8 | E 8 | E 10 | ENE 10 | NE 10 | ENE 10 | ENE 9 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | NE 7 | NE 8 | E 9 | ENE 8 | NE 6 | ENE 9 | ENE 9 |
Wave Graph | ||||||||||||||||||||
627 | 836 | 887 | 2224 | 2396 | 1234 | 430 | 354 | 253 | 280 | 196 | 286 | 192 | 143 | 210 | 506 | 331 | 120 | 190 | 307 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on |
High Tide | 11:29PM1.70m | 3:55PM1.74m | 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 | ||||||||
Low Tide | 6:22PM1.53m | 7:54AM0.67m | 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 | |||||||
— | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | |
6:34 | — | — | 6:32 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:27 | — | — | 6:25 | — | |
mm | 25 | 11 | 1 | 4 | 8 | — | — | — | — | — | — | — | — | — | 2 | 4 | 6 | — | 2 | 4 |
Temp °C | 25 | 25 | 25 | 25 | 25 | 27 | 28 | 27 | 27 | 28 | 27 | 29 | 28 | 26 | 24 | 24 | 25 | 27 | 28 | 26 |
Feels °C | 24 | 23 | 22 | 22 | 22 | 24 | 27 | 27 | 27 | 29 | 29 | 30 | 27 | 23 | 22 | 24 | 25 | 31 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 8 | E 10 | ENE 11 | ESE 9 | ENE 9 | E 8 | S 9 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | E 16 | ENE 8 | ENE 7 | SE 7 | ENE 9 |
82 | 21 | 6 | 6 | 1802 | 586 | 188 | 193 | 253 | 43 | 196 | 286 | 192 | 116 | 188 | 21 | 207 | 79 | 52 | 206 | |
Swell 2 Height (m) Direction Period (s) | SE 7 | E 13 | E 13 | SSW 8 | SE 10 | ESE 10 | SSE 10 | ESE 8 | S 10 | ESE 10 | SSE 9 | E 10 | ESE 10 | ENE 8 | E 16 | S 9 | ESE 9 | SE 8 | ENE 6 | SE 7 |
7 | 4 | 3 | 14 | 246 | 365 | 35 | 111 | 70 | 22 | 42 | 51 | 10 | 19 | 21 | 2 | 141 | 67 | 32 | 59 | |
Swell 3 Height (m) Direction Period (s) | E 14 | — | E 13 | — | SSW 8 | S 10 | ESE 11 | S 10 | ESE 11 | ESE 10 | ESE 10 | E 19 | E 18 | E 17 | — | — | E 15 | ESE 9 | E 9 | E 14 |
4 | — | 3 | — | 14 | 17 | 24 | 52 | 38 | 40 | 40 | 7 | 6 | 24 | — | — | 38 | 28 | 58 | 62 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | E 8 | E 8 | E 10 | ENE 10 | NE 10 | ENE 10 | ENE 9 | NE 6 | E 8 | NNE 4 | NE 6 | NE 7 | NE 7 | NE 8 | E 9 | ENE 8 | NE 6 | ENE 9 | ENE 9 |
627 | 836 | 887 | 2224 | 2396 | 1234 | 430 | 354 | 185 | 280 | 19 | 90 | 85 | 143 | 210 | 506 | 331 | 120 | 190 | 307 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 283 | 75 | 288 | 288 | 48 | 38 | 283 | 38 | 38 | 283 | 2 | 8 | 50 | 283 | 283 | 38 | 38 | 7 | 19 | 20 |
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.










