Surf Forecasts:
Aoshima surf forecast from 21 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 3AM (local time) - 1.5ft (0.5m), 11s period, E swell with cross-offshore winds.
- Most powerful swell: Wednesday 22 Jul, 9AM (local time) - 2.5ft (0.7m), 11s period, E swell with 108 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 3AM (local time) - 1.5ft (0.5m), 11s period with E 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 (Jul 22) at 3AM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.4m 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 0.7m 11s and forecast to arrive on Wednesday (Jul 22) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Jul 23) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 22nd Jul) | 1.5ft (0.5m) 11s |
| Best Surf | 3AM (Wed 22nd Jul) | 1.5ft (0.5m) 11s |
| Most Powerful | 9AM (Wed 22nd Jul) | 2.5ft (0.7m) 11s |
Table - best surf conditions forecast for Aoshima over the next 16 days.
The Lowdown
Second Text (Imperial)
Alright, let's translate that for the imperial crowd. The first week or so is a real snoozer. For several days, there's just nothing to get excited about. From Wednesday the 22nd through the end of July, the waves are tiny, mostly under 3 ft, with the energy in the tank.
The big one, the one you need to plan for, is Monday the 3rd of August. Aoshima (reef) is going to be a monster. We've got a solid 13 ft (4.0m) swell pouring in from the SE, with a 16-second period. That's a proper groundswell, meaning long, powerful lines. The combined energy is a massive 8435, which is very strong. The wind is cross-onshore from the NE at 12 mph, so it'll be a bit chopped, but at that size, it's all about the raw power. This is strictly for experts, as it's well over the 8 ft mark. Expect crowds, as it's a popular spot.
The day before, Sunday the 2nd of August, is the warm-up act. It's still hefty, with a 5 ft (1.5m) swell building to 6 ft (1.8m) in the afternoon from the SE, with a 15-second period. The energy is strong at 1081. The onshore NE wind at 12 mph will make it a bit bumpy, but the power is still there.
Forget the tiny dribble before that. The morning of Thursday the 6th of August might offer a glassy, clean 13 ft (4.0m) wave, but your best bet is already in the bag.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 31°C on Thu afternoon, min 27°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Sat afternoon. Warm (max 30°C on Sat morning, min 27°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||||
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 9 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SE 11 | SE 11 | SE 11 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | ESE 10 | ESE 10 | S 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 53 | 108 | 102 | 72 | 71 | 71 | 48 | 48 | 46 | 30 | 30 | 29 | 50 | 88 | 82 | 75 | 59 | 67 | 92 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | cross-on | off | glassy | cross | cross-off | glassy | cross | cross-off | glassy | cross | glassy | glassy | cross | off | glassy | cross | cross-off |
High Tide | 10:41PM1.91m | 11:45AM1.58m | 11:25PM1.86m | 1:35PM1.54m | 00:22AM1.82m | 3:27PM1.63m | 1:33AM1.81m | 4:37PM1.77m | 2:44AM1.85m | 5:22PM1.90m | 3:46AM1.93m | 5:58PM2.00m | |||||||
Low Tide | 5:27AM0.77m | 5:06PM1.11m | 6:41AM0.72m | 6:17PM1.29m | 8:00AM0.63m | 8:00PM1.39m | 9:11AM0.49m | 9:32PM1.39m | 10:07AM0.35m | 10:33PM1.33m | 10:54AM0.23m | 11:19PM1.24m | |||||||
 |  | | | | | | |  | | | |  | | | | | | | |
 | — | 5:22 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — |
 | 7:17 | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | 3 | 1 | 1 | 4 | 1 | 1 | 3 | 2 |
Temp °C | 28 | 29 | 29 | 28 | 29 | 31 | 29 | 29 | 30 | 29 | 30 | 30 | 29 | 29 | 29 | 28 | 29 | 30 | 28 |
Feels °C | 32 | 33 | 34 | 32 | 34 | 34 | 33 | 34 | 33 | 35 | 35 | 34 | 34 | 34 | 33 | 33 | 34 | 34 | 32 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | SE 11 | SE 11 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | S 8 | S 8 | S 10 |
| kJ | 53 | 108 | 102 | 72 | 71 | 71 | 48 | 48 | 46 | 27 | 30 | 29 | 50 | 88 | 82 | 75 | 52 | 50 | 92 |
Swell 2 Height (m) Direction Period (s) | E 12 | SE 8 | SE 8 | S 7 | S 7 | SE 10 | S 4 | SE 9 | ESE 18 | SE 11 | E 9 | E 9 | SE 10 | SE 10 | ESE 10 | ESE 11 | ESE 10 | ESE 10 | ESE 10 |
| kJ | 44 | 2 | 2 | 1 | 4 | 4 | 2 | 13 | 31 | 30 | 26 | 26 | 25 | 49 | 43 | 45 | 59 | 67 | 68 |
Swell 3 Height (m) Direction Period (s) | S 3 | — | S 7 | SE 7 | SE 20 | S 7 | SE 8 | ESE 18 | ESE 9 | ESE 17 | ESE 16 | SSE 8 | E 9 | E 9 | E 9 | E 8 | ESE 14 | ENE 8 | ENE 8 |
| kJ | 2 | — | 1 | 2 | 15 | 1 | 3 | 31 | 8 | 27 | 26 | 11 | 15 | 14 | 13 | 12 | 40 | 13 | 13 |
Wind waves Height (m) Direction Period (s) | SSW 3 | — | — | SSW 3 | — | — | SW 3 | — | SE 7 | SW 4 | — | — | — | — | — | — | — | — | SSW 3 |
| kJ | 4 | — | — | 1 | — | — | 3 | — | 2 | 4 | — | — | — | — | — | — | — | — | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 19 | 645 | 0 | 0 | 645 | 0 | 0 | 19 | 0 | 0 | 60 | 0 | 0 | 117 | 0 | 0 | 340 | 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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