Surf Forecasts:
Aoshima surf forecast from 2 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 3PM (local time) - 16ft (5.0m), 18s period, ESE swell with cross-onshore winds.
- Most powerful swell: Thursday 6 Aug, 9PM (local time) - 26ft (8.0m), 18s period, SE swell with 40,791 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 6PM (local time) - 3.5ft (1.1m), 16s 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 Sunday (Aug 02) at 6PM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 0.2m and 8s. 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 8.0m 18s and forecast to arrive on Thursday (Aug 06) at 9PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sun 2nd Aug) | 3.5ft (1.1m) 16s |
| Best Surf | 3PM (Wed 5th Aug) | 16ft (5.0m) 18s |
| Most Powerful | 9PM (Thu 6th Aug) | 26ft (8.0m) 18s |
Table - best surf conditions forecast for Aoshima over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what Aoshima has in store over the next couple of weeks.
First up, the water temp is sitting at 85°, which is a touch warmer than normal for this time of year – a nice little bonus.
We’ve got a bit of a slow start, but there’s a real window of opportunity on Sunday morning, the 2nd of August. It won’t be big, with clean, glassy surf pushing in at 2 ft from the ESE. The swell has a really long period of 16 seconds, which means proper groundswell with some decent energy behind it for its size, and the combined energy is 255 (moderate). The wind is glassy, so conditions will be smooth. Aoshima is a reef break and fairly consistent, so you’ll get your share of waves. Just keep in mind it can get crowded sometimes.
The rest of that first week is a write-off for paddling. The swell jumps up in size, but onshore winds from the NE and ENE just trash it. By Wednesday the 5th, we’re looking at 16 ft+ swells, which is way too big for this spot and for everyone except the most experienced chargers. The wind is howling, and it’s just a blown-out mess. Honestly, with those conditions, the setup here looks more interesting for kite surfing than paddle surfing.
That big swell slowly drops through the second week, but the wind stays ugly from the east for days on end, keeping the quality poor. It’s just not worth paddling out for most of that week.
Then, on the morning of Saturday the 15th of August, we get a glimmer. The wind drops to dead calm and glassy again. The swell is small, coming in at 3 ft from the East with a period of 11 seconds, but the combined energy is 255 (moderate) for the size. If you’re desperate for a session and don’t mind small waves, this morning could offer a few clean little runners. It fades into the afternoon with onshore wind picking back up, so make the most of that morning window.
So, to sum it up: your standout morning is Sunday the 2nd of August for the cleanest, most fun waves, even if they’re small. The backup is the glassy morning on Saturday the 15th of August, but again, expect it to be tiny. Everything else in between is blown out or too big.
Stay patient, and keep your eyes on the wind.
Rusty.
Short Range ForecastHeavy rain (total 35mm), heaviest during Mon night. Warm (max 31°C on Sun morning, min 27°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 76mm), heaviest during Thu night. Warm (max 28°C on Wed morning, min 27°C on Wed morning). Winds increasing (fresh winds from the NE on Wed afternoon, near gales from the ENE by Thu night). | ||||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | |||||||||||||||
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) | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 16 | ESE 17 | E 17 | E 17 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | SE 17 | ESE 16 | SE 16 | SSE 16 | SSE 16 | SSE 15 | SSE 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 211 | 284 | 768 | 1038 | 1428 | 2783 | 3727 | 4693 | 6834 | 11703 | 16059 | 23890 | 34789 | 38331 | 37611 | 32325 | 15521 | 15802 | 9181 | 6670 | 4918 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | glassy | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on |
High Tide | 8:51PM2.09m | 8:53AM1.96m | 9:20PM2.04m | 9:43AM1.82m | 9:51PM1.98m | 10:45AM1.67m | 10:27PM1.91m | 12:18PM1.56m | 11:14PM1.84m | 2:34PM1.58m | 00:24AM1.79m | 4:09PM1.71m | 1:55AM1.79m | ||||||||
Low Tide | 2:29PM0.46m | 2:55AM0.73m | 3:02PM0.65m | 3:38AM0.72m | 3:36PM0.86m | 4:29AM0.72m | 4:14PM1.07m | 5:33AM0.72m | 5:04PM1.28m | 6:56AM0.70m | 6:41PM1.44m | 8:23AM0.61m | 8:51PM1.47m | ||||||||
 |  |  | |  |  | | |  |  | | | | | | | | | | | | |
 | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — |
 | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — |
mm | — | — | — | — | 1 | 12 | 7 | 6 | 9 | 5 | 2 | 5 | 5 | 4 | 15 | 11 | 11 | 18 | 11 | 13 | 26 |
Temp °C | 31 | 31 | 30 | 30 | 30 | 28 | 28 | 29 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 |
Feels °C | 35 | 34 | 34 | 33 | 32 | 32 | 30 | 31 | 31 | 28 | 28 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 16 | ESE 17 | E 17 | E 17 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | SE 17 | SSE 16 | SE 16 | SSE 16 | SSE 16 | SSE 15 | SSE 15 |
| kJ | 211 | 284 | 768 | 1038 | 1428 | 2783 | 3727 | 4693 | 6834 | 11703 | 16059 | 23890 | 34789 | 38331 | 36390 | 26368 | 15521 | 15802 | 9181 | 6670 | 4918 |
Swell 2 Height (m) Direction Period (s) | SE 9 | E 18 | S 8 | SSE 7 | ENE 15 | S 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 20 | 158 | 4 | 5 | 42 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | ESE 11 | S 8 | SE 10 | SSE 10 | S 7 | S 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 24 | 1 | 15 | 9 | 4 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NE 4 | ENE 6 | ENE 7 | E 8 | E 9 | — | — | — | ENE 10 | ENE 11 | ESE 17 | ESE 16 | E 12 | E 11 | ESE 11 | ESE 10 | ESE 10 |
| kJ | — | — | — | — | 14 | 83 | 269 | 387 | 792 | — | — | — | 3406 | 4146 | 37611 | 32325 | 7977 | 6083 | 4908 | 3442 | 2849 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 117 | 0 | 50 | 50 | 38 | 50 | 297 | 50 | 288 | 1382 | 288 | 202 | 791 | 829 | 829 | 791 | 807 | 700 | 791 | 829 |
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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