
Surf Forecasts:
Aoshima surf forecast from 30 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 3PM (local time) - 16ft (5.0m), 18s period, ESE swell with onshore winds.
- Most powerful swell: Thursday 6 Aug, 12PM (local time) - 36ft (11.0m), 19s period, ESE swell with 86,130 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 12AM (local time) - 1.5ft (0.4m), 9s 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 Friday (Jul 31) at 12AM. The primary swell is predicted to be 0.4m and 9s period with a secondary swell of 0.2m and 7s. 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 11.0m 19s and forecast to arrive on Thursday (Aug 06) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 6s period and expected on Sunday (Aug 02) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 31st Jul) | 1.5ft (0.4m) 9s |
| Best Surf | 3PM (Wed 5th Aug) | 16ft (5.0m) 18s |
| Most Powerful | 12PM (Thu 6th Aug) | 36ft (11.0m) 19s |
Table - best surf conditions forecast for Aoshima over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s cooking for Aoshima over the next couple of weeks. It’s a bit of a weird one – we’ve got a long, flat spell to kick things off before the ocean wakes up in a big way.
Right now and for the next few days, don’t even bother waxing up. We’re looking at tiny dribble, with swell heights barely nudging 1 ft from the ESE and weak energy readings (around 35 to 61). Winds are light, and Thursday morning actually looks glassy, but there’s just no power. This flat patch runs right through until the morning of Sunday, the 2nd of August.
That Sunday morning is our first real whisper of life. The swell bumps up to 2 ft from the ESE, but the big story is the period jumping to a very long 16 seconds. The combined energy jumps to 255 (moderate), and we’ve got glassy conditions with a light NE breeze. That long period stuff means better shape, but at a reef like Aoshima, those longer gaps between sets will be noticeable. The water is sitting at 85°, which is about average for this time of year.
Now, the real stand-out window, and the best on offer across the whole outlook, is the following Monday, the 3rd of August. The swell is from the ESE at 6 ft on the morning with a period of 16 seconds. The combined energy reading is a strong 1472. The catch? There’s a risk of thunderstorms and the wind is cross-on from the NNE at 6 mph. It’s a bit messy, but that’s the most size and grunt we’ll see that’s still manageable for a paddle. By the afternoon, the swell hits 7 ft with a 17-second period and an energy reading of 2192, but the wind goes onshore. It’s more suited to stronger surfers.
Everything after that gets wild. From Tuesday, the 4th of August, through the end of the week, the swell keeps building but so does the wind. We’re talking 8 ft on Tuesday, climbing to a massive 28 ft by Thursday, the 6th of August, with onshore winds blowing 28 to 31 mph. The energy readings go through the roof – hitting 138426 by Thursday afternoon – but this is for experts only, and frankly, it looks more like a kiteboarding setup than a paddling proposition. It’s just too big and blown out.
We then see a slow drop-off through the second week. By Monday the 10th of August, the swell is back down to 5 ft from the E, energy is still moderate at 1247, but the onshore winds keep conditions poor. It remains marginal and unappealing right through to the end of the forecast.
So, to sum it up: if you’re looking for a paddle, your best bet is the morning of Monday, the 3rd of August. It’s not perfect, but it’s the only window with proper size and energy before things turn into a washing machine. Everything else is either flat, too big with bad wind, or just plain messy.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Thu morning, min 26°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 33mm), heaviest during Tue morning. Warm (max 32°C on Sun afternoon, min 27°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
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 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 11 | ESE 11 | ESE 16 | E 17 | ESE 16 | ESE 16 | ESE 17 | ESE 18 | ESE 18 | ESE 17 | ESE 17 | ESE 17 | ESE 18 | ESE 19 |
Wave Graph | |||||||||||||||||||||
37 | 36 | 34 | 28 | 28 | 28 | 28 | 40 | 47 | 211 | 215 | 787 | 1446 | 2136 | 3092 | 3675 | 4206 | 6560 | 9983 | 16246 | 28789 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | glassy | cross-on | cross-off | cross-off | cross | cross-off | glassy | cross-on | glassy | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | on |
High Tide | 7:28PM2.14m | 6:47AM2.16m | 7:56PM2.14m | 7:28AM2.14m | 8:23PM2.12m | 8:09AM2.07m | 8:51PM2.09m | 8:53AM1.96m | 9:20PM2.04m | 9:43AM1.82m | 9:51PM1.98m | 10:45AM1.67m | 10:27PM1.91m | ||||||||
Low Tide | 12:49PM0.12m | 1:07AM0.93m | 1:23PM0.19m | 1:42AM0.84m | 1:56PM0.30m | 2:17AM0.78m | 2:29PM0.46m | 2:55AM0.73m | 3:02PM0.65m | 3:38AM0.72m | 3:36PM0.86m | 4:29AM0.72m | 4:14PM1.07m | ||||||||
5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | |
— | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 9 | 8 | 7 | 6 | 6 | 4 | 8 |
Temp °C | 31 | 31 | 29 | 31 | 31 | 28 | 30 | 31 | 29 | 31 | 32 | 30 | 30 | 30 | 28 | 29 | 29 | 28 | 28 | 29 | 28 |
Feels °C | 33 | 35 | 33 | 33 | 33 | 32 | 32 | 34 | 34 | 34 | 35 | 34 | 32 | 32 | 32 | 31 | 32 | 31 | 28 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 11 | ESE 11 | ESE 16 | ESE 14 | ESE 16 | ESE 16 | ESE 17 | ESE 18 | ESE 18 | ESE 17 | ESE 17 | ESE 17 | ESE 18 | ESE 19 |
37 | 36 | 34 | 28 | 28 | 28 | 28 | 40 | 47 | 211 | 215 | 787 | 1446 | 2136 | 3092 | 3675 | 4206 | 6560 | 9983 | 16246 | 28789 | |
Swell 2 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | S 7 | — | E 12 | SE 16 | E 15 | SE 9 | E 17 | S 8 | ENE 14 | ENE 15 | SE 14 | — | — | — | — | — | — |
4 | 4 | 4 | 4 | 1 | — | 3 | 10 | 17 | 20 | 212 | 1 | 21 | 42 | 8 | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | E 13 | E 15 | E 13 | E 12 | E 12 | S 7 | E 19 | E 18 | ESE 18 | ESE 11 | S 8 | ESE 9 | — | SE 16 | — | — | — | — | — | — | — |
3 | 4 | 3 | 3 | 3 | 1 | 7 | 7 | 30 | 24 | 1 | 29 | — | 9 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WSW 3 | — | — | — | — | — | — | SSE 6 | — | — | — | — | SSE 7 | ESE 7 | ENE 5 | — | — | — | — | — | — |
1 | — | — | — | — | — | — | 4 | — | — | — | — | 5 | 5 | 26 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 312 | 0 | 64 | 361 | 297 | 883 | 334 | 0 | 0 | 117 | 0 | 23 | 50 | 38 | 50 | 50 | 48 | 288 | 791 | 288 |
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.










