Surf Forecasts:
Aoshima surf forecast from 25 Aug 2026:
- Best quality surf: Thursday 27 Aug, 9PM (local time) - 5.5ft (1.7m), 8s period, SSE swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 9AM (local time) - 13ft (4.0m), 11s period, SE swell with 4,171 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 9PM (local time) - 5.5ft (1.7m), 8s period with SSE 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 Thursday (Aug 27) at 9PM. The primary swell is predicted to be 1.7m and 8s period with a secondary swell of 1.4m and 8s. Another secondary swell of 0.5m and 12s 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 4.0m 11s and forecast to arrive on Wednesday (Sep 02) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (Aug 29) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 27th Aug) | 5.5ft (1.7m) 8s |
| Best Surf | 9PM (Thu 27th Aug) | 5.5ft (1.7m) 8s |
| Most Powerful | 9AM (Wed 2nd Sep) | 13ft (4.0m) 11s |
Table - best surf conditions forecast for Aoshima over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s break down what Aoshima is serving up over the next 16 days.
Straight up, the big winner is the morning of Wednesday, 2nd September. The ocean is going off with a solid 13ft swell from the SE, 11-second period, and a combined energy reading of 6608—that’s a heap of power. This is expert territory only. The wind is cross and a fresh 19 mph, so it’ll be lumpy, but for sheer size and grunt, that’s the session.
Another one to pencil in is the morning of Sunday, 6th September. You’ve got an 8ft ESE swell with a long 12-second period and 2262 energy. The wind is a lighter cross-onshore, so it’s not perfect, but that period should give some decent shape compared to the chop of other days.
The start of the run is poor. Wednesday the 26th and Thursday the 27th are small and messy with storm risks and cross-onshore winds, scoring low. Friday the 28th cleans up a bit with a light breeze and 4ft to 4ft SSE swell, but it’s short-period (7 seconds) and still marginal. From Saturday the 29th into Sunday the 30th, it drops to knee-high slop, though there is a glassy moment on Sunday morning with a tiny 2ft east swell.
From Monday the 31st through Friday the 5th of September, it’s a long stretch of poor to marginal conditions, with onshore winds and lumpy seas. Not worth the effort.
After the big Wednesday swell, the rest of the second week stays ugly—strong cross-onshore winds and messy 8ft to 12ft swells. Not your friend.
The morning of Monday, 7th September, offers a small but clean window: 5ft ESE swell, glassy, and light air. That’s your best bet for a clean wave if you’re not chasing the big stuff, but it’s not a standout.
Water temp at Aoshima is a warm 84°, about average for this time of year.
Rusty signing off.
Short Range ForecastHeavy rain (total 34mm), heaviest during Wed morning. Warm (max 30°C on Fri morning, min 26°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Mon night. Warm (max 30°C on Sat morning, min 25°C on Sun night). Winds increasing (calm on Sat night, fresh winds from the ENE by Mon night). | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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) | SSE 12 | S 11 | SE 8 | SSE 8 | SSE 8 | SE 8 | SSE 7 | SSE 7 | E 13 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | SSE 9 | SE 9 | SE 10 | ESE 10 | ESE 9 | ESE 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1271 | 526 | 367 | 423 | 374 | 248 | 169 | 144 | 127 | 109 | 102 | 101 | 63 | 59 | 58 | 88 | 81 | 377 | 643 | 838 | 1672 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off | glassy | cross | glassy | on | on | on | cross-on | cross-on | cross |
High Tide | 6:00PM2.11m | 5:21AM2.13m | 6:25PM2.16m | 6:01AM2.21m | 6:50PM2.18m | 6:40AM2.24m | 7:14PM2.19m | 7:18AM2.22m | 7:39PM2.18m | 7:56AM2.15m | 8:04PM2.14m | 8:37AM2.03m | 8:29PM2.09m | ||||||||
Low Tide | 11:19AM0.27m | 11:41PM0.97m | 11:55AM0.25m | 00:12AM0.81m | 12:28PM0.27m | 00:42AM0.68m | 12:59PM0.35m | 1:14AM0.58m | 1:30PM0.47m | 1:47AM0.51m | 1:59PM0.63m | 2:22AM0.49m | 2:29PM0.81m | ||||||||
 | |  | |  |  | |  |  | | |  | | | | |  | | | | | |
 | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — |
mm | 11 | 8 | 9 | 4 | — | 2 | — | — | — | — | — | — | — | — | — | — | 1 | 11 | 47 | 28 | 21 |
Temp °C | 28 | 28 | 27 | 29 | 29 | 27 | 30 | 30 | 27 | 30 | 30 | 27 | 28 | 29 | 27 | 28 | 28 | 27 | 27 | 27 | 28 |
Feels °C | 31 | 31 | 31 | 31 | 31 | 31 | 32 | 32 | 31 | 32 | 31 | 31 | 33 | 31 | 31 | 29 | 30 | 29 | 28 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSE 12 | SE 9 | SE 8 | SSE 8 | SSE 8 | SE 8 | SSE 7 | E 13 | SE 7 | SSE 7 | E 12 | SSE 7 | SSE 7 | SSE 7 | SSE 8 | SSE 9 | SE 9 | SE 10 | ESE 10 | ESE 9 | ENE 11 |
| kJ | 1271 | 526 | 367 | 423 | 374 | 248 | 169 | 87 | 77 | 70 | 102 | 65 | 38 | 43 | 44 | 88 | 81 | 377 | 643 | 838 | 41 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | S 11 | S 10 | E 12 | E 12 | E 12 | E 11 | ESE 10 | E 13 | E 12 | E 13 | E 12 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | SE 16 | SE 13 | E 11 |
| kJ | 501 | 525 | 184 | 106 | 101 | 70 | 37 | 35 | 123 | 109 | 3 | 101 | 63 | 59 | 58 | 36 | 37 | 37 | 211 | 680 | 23 |
Swell 3 Height (m) Direction Period (s) | E 14 | E 13 | E 13 | E 17 | E 16 | E 15 | E 14 | S 13 | S 7 | SE 13 | SW 9 | SE 11 | SE 9 | SE 10 | E 10 | — | SE 12 | SSE 14 | E 11 | — | — |
| kJ | 93 | 85 | 121 | 6 | 20 | 38 | 32 | 3 | 34 | 7 | 3 | 5 | 14 | 4 | 2 | — | 23 | 66 | 20 | — | — |
Wind waves Height (m) Direction Period (s) | SE 10 | — | — | — | — | — | — | SSE 7 | S 7 | — | SSE 7 | S 5 | — | — | — | — | — | E 6 | ENE 11 | ENE 11 | ESE 11 |
| kJ | 640 | — | — | — | — | — | — | 144 | 127 | — | 84 | 43 | — | — | — | — | — | 1 | 39 | 41 | 1672 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 283 | 807 | 48 | 283 | 312 | 0 | 0 | 312 | 0 | 0 | 312 | 0 | 0 | 312 | 0 | 50 | 50 | 283 | 803 | 803 | 232 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aoshima surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest