Surf Forecasts:
Aoshima surf forecast from 16 Jul 2026:
- Best quality surf: Friday 17 Jul, 12AM (local time) - 1.5ft (0.4m), 9s period, ESE swell with cross-offshore winds.
- Most powerful swell: Wednesday 22 Jul, 12PM (local time) - 2.5ft (0.7m), 11s period, E swell with 110 kJ wave energy.
- Next surfable swell (1★+): Friday 17 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 17) at 12AM. The primary swell is predicted to be 0.4m and 9s period with a secondary swell of 0.4m 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 0.7m 11s and forecast to arrive on Wednesday (Jul 22) at 12PM. 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 4s period and expected on Saturday (Jul 18) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 17th Jul) | 1.5ft (0.4m) 9s |
| Best Surf | 12AM (Fri 17th Jul) | 1.5ft (0.4m) 9s |
| Most Powerful | 12PM (Wed 22nd Jul) | 2.5ft (0.7m) 11s |
Table - best surf conditions forecast for Aoshima over the next 16 days.
The Lowdown
G’day, Rusty here, and I’ve been staring at the charts for Aoshima. To be honest, the next week and a half is a bit of a flat spell. There’s really nothing to get excited about until the very end of the month. The first real surf on offer is on Thursday the 16th of July, but it’s small and ordinary. The water is sitting at 82°, which is just about average for this time of year, so no surprises there.
The whole period from Thursday the 16th right through to Sunday the 26th of July is filled with tiny, weak waves. The swell height barely gets above 2ft, and the combined energy is mostly weak, sitting under 100 (58 to 120). The swell direction is all from the east or southeast, which is decent for Aoshima’s optimum SE direction, but the size is just too small to make any of it worthwhile. The wind is often light and sometimes even glassy, which would make for clean conditions, but the waves just aren’t there. It’s frustrating.
Then, on Monday the 27th of July, things start to change. The swell jumps to 5ft from the southeast with a period of 12 seconds, pushing the combined energy to 589 (moderate energy). The wind is onshore from the ENE though, so it’s messy. The next day, Tuesday the 28th of July, is the standout. The swell hits 10ft from the southeast with a period of 13 seconds, and the combined energy is a massive 2889 (very strong energy). That’s a serious groundswell, but the wind is still onshore from the east. This is only for experts – 10ft waves with onshore wind are not for the faint-hearted. The long period (13 seconds) means the waves will have good shape, but at a beach break like Aoshima, it might break a bit straight. If you’re an experienced surfer, this is your window. Wednesday the 29th of July still has 7ft swell from the SSE (1516 energy), but again, onshore wind.
So, the best of the lot is Tuesday the 28th of July at Aoshima. It’s big, it’s powerful, and it’s got serious energy. Just be prepared for the onshore wind and the fact that it’s a big swell only for the crew who know what they’re doing. The earlier part of the month is a write-off. Stay patient.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Fri afternoon. Warm (max 33°C on Thu afternoon, min 26°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Sun afternoon. Warm (max 31°C on Sun afternoon, min 26°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Thu 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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 9 | ESE 9 | E 10 | E 10 | ESE 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | E 9 | E 9 | E 11 | E 10 | E 11 | E 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 29 | 29 | 46 | 45 | 31 | 60 | 57 | 57 | 56 | 60 | 64 | 65 | 60 | 60 | 58 | 78 | 108 | 98 | 110 | 104 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross-off | glassy | glassy | cross-off | cross-off | glassy | cross-on | cross-off | cross-on | cross | cross-off | glassy | cross | glassy |
High Tide | 7:59PM2.10m | 7:10AM2.09m | 8:29PM2.09m | 7:52AM2.04m | 9:00PM2.05m | 8:37AM1.95m | 9:31PM2.01m | 9:27AM1.84m | 10:04PM1.96m | 10:26AM1.70m | 10:41PM1.91m | 11:45AM1.58m | 11:25PM1.86m | |||||||
Low Tide | 1:34AM0.99m | 1:50PM0.18m | 2:12AM0.92m | 2:26PM0.31m | 2:52AM0.87m | 3:01PM0.49m | 3:35AM0.83m | 3:38PM0.68m | 4:26AM0.80m | 4:17PM0.90m | 5:27AM0.77m | 5:06PM1.11m | ||||||||
 |  |  |  |  | | |  | | | | | | | | | | | | | |
 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — |
 | 7:20 | — | — | 7:20 | — | — | 7:19 | — | — | 7:19 | — | — | 7:19 | — | — | 7:17 | — | — | 7:16 | — |
mm | — | — | — | 3 | 1 | — | — | — | — | 3 | 1 | — | 2 | — | — | — | — | — | — | — |
Temp °C | 33 | 28 | 29 | 28 | 28 | 30 | 31 | 28 | 30 | 31 | 28 | 29 | 30 | 28 | 29 | 29 | 28 | 29 | 30 | 28 |
Feels °C | 37 | 33 | 34 | 33 | 34 | 34 | 35 | 33 | 35 | 36 | 33 | 34 | 36 | 33 | 33 | 33 | 33 | 33 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | E 10 | E 10 | ESE 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | E 9 | E 9 | E 11 | E 10 | E 11 | E 10 |
| kJ | 29 | 29 | 46 | 45 | 31 | 60 | 57 | 57 | 56 | 60 | 64 | 65 | 60 | 60 | 58 | 78 | 108 | 98 | 110 | 104 |
Swell 2 Height (m) Direction Period (s) | SSW 7 | S 7 | S 7 | S 7 | E 8 | S 7 | SE 8 | S 4 | SSW 4 | SE 8 | SSW 4 | SSE 9 | SE 9 | S 3 | SE 8 | SE 8 | E 14 | SE 8 | S 7 | S 7 |
| kJ | 18 | 17 | 9 | 4 | 21 | 4 | 11 | 3 | 2 | 10 | 3 | 8 | 3 | 1 | 3 | 3 | 15 | 2 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | SSW 7 | ESE 9 | ESE 9 | SE 9 | SSW 7 | SE 9 | S 7 | SE 8 | SSE 8 | S 6 | S 6 | SSW 4 | SSE 9 | SE 8 | S 7 | S 7 | SE 8 | S 7 | SE 8 | SE 10 |
| kJ | 11 | 8 | 8 | 3 | 10 | 3 | 1 | 10 | 6 | 1 | 1 | 1 | 8 | 3 | 1 | 1 | 3 | 1 | 2 | 4 |
Wind waves Height (m) Direction Period (s) | SW 5 | — | — | — | SW 5 | SSW 7 | SSW 3 | SSW 4 | SW 4 | S 4 | SW 4 | SW 4 | S 7 | SW 3 | — | — | — | — | — | SW 7 |
| kJ | 27 | — | — | — | 14 | 9 | 4 | 10 | 9 | 8 | 7 | 8 | 4 | 3 | — | — | — | — | — | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 19 | 912 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 38 | 0 | 2 | 702 | 0 | 0 | 312 | 0 |
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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