Aoshima Surf Break

Lat Long: 31.81° N 131.47° E

Aoshima Surf Forecast and Surf Report

Issued: 8 am 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Aoshima sea temperature is
28.9°C
0.8° 

Aoshima surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Aoshima surf forecast from 4 Sep 2026:

  • Best quality surf: Wednesday 9 Sep, 3AM (local time) - 3.5ft (1.0m), 8s period, SE swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 3AM (local time) - 13ft (4.0m), 11s period, ENE swell with 3,926 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 3AM (local time) - 3.5ft (1.0m), 8s period with SE 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 (Sep 09) at 3AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.5m 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 4.0m 11s and forecast to arrive on Monday (Sep 07) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Monday (Sep 07) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 9th Sep)3.5ft (1.0m) 8s
Best Surf 3AM (Wed 9th Sep)3.5ft (1.0m) 8s
Most Powerful 3AM (Mon 7th Sep)13ft (4.0m) 11s

Table - best surf conditions forecast for Aoshima over the next 16 days.


The Lowdown

Alright folks, let's talk shop. Right out of the gate, we got a problem: that pretty sizable 8-foot swell is on the way, but the trade winds are gonna be on it like ugly on a monkey. It's gonna be a whole lot of ocean moving around, but all of it chopped up and blown out. The energy reading is a hefty 2219, so there's no shortage of power, but it's useless power. The wave period is a junky 10 seconds, so it's just gonna be a bumpy mess.

Water temps are a balmy 84°F, which is a touch warmer than normal for this time of year. Not a big deal, just a little anomaly.

So, for the next week, from the 5th all the way through to the 9th, we're looking at a blank. It's either too small, or the wind is just ruining everything. We got onshore winds at 35 km/h, cross-onshore chop, and short-period junk. There's a solid gap here where you just don't even bother checking the cam.

The first glimmer of hope shows up on the 12th. It's tiny, only about 2 feet, but the wind goes light and offshore and the period stretches out to a lovely 14 seconds. That's a proper groundswell, even if it's small. It'll be clean, but you'll be paddling hard for a ripple. Better than nothing, but just barely.

The next few days are more of the same micro-junk. But then, look at Tuesday the 15th afternoon. The wind just dies, we're talking glassy, and the swell bumps up to a clean 5 feet. The energy is nothing special at 447, but the conditions will be. This is the first day where you can actually have a fun, smooth session.

And then, the big one. Thursday the 17th in the afternoon. The wind is forecasted to go absolutely dead, and the swell pushes up to a solid 5 feet from the ENE. The energy reading jumps again, and the report literally says "expect very good surf conditions." This is our standout. It's eleven days out, so treat it as a promise that could be broken, but mark it on your calendar. This is the window. The swell direction is a bit off from the ideal SE, but it should still wrap into Aoshima with some fun shape.

After that, the forecast goes back downhill. More onshore wind, smaller waves, and just a general lack of anything interesting. So to sum it up: the 15th afternoon and the 17th afternoon are your only real chances for a decent paddle. Everything else, you're better off finding something else to do.

That's the long and short of it. Rusty, out.

Short Range Forecast

Heavy rain (total 522mm), heaviest during Fri night. Warm (max 26°C on Fri morning, min 21°C on Fri afternoon). Mainly near gales.

Days 4-6 Weather Summary

Some drizzle, heaviest during Wed night. Warm (max 29°C on Mon afternoon, min 25°C on Mon night). Winds decreasing (fresh winds from the NE on Mon afternoon, light winds from the NNE by Wed morning).

Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
SSE
10
1.6
S
10
3
ENE
8
3
E
8
1.7
E
8
1.8
E
8
2.5
E
8
3.5
E
10
4
ENE
11
3
E
11
2
E
9
1.5
E
9
0.9
SSE
11
1.3
NE
8
0.9
SE
8
1.1
SE
8
0.9
SE
8
0.9
SE
8
0.9
SE
7
0.9
E
6
0.7
SE
7
Wave Graph
Metric surfscale
Energy kJ
1237
490
1093
1041
350
357
997
2590
3609
1736
685
340
201
200
100
154
107
84
79
49
47
Wind (km/h)
20
SE
10
ESE
50
NE
25
ESE
20
E
25
NE
35
NE
35
NNE
35
N
20
N
30
NE
20
NNE
15
NNE
15
NE
10
NNW
5
NNE
20
NE
25
NNE
20
NNE
20
NE
15
ENE
Wind State
cross
cross-on
on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross
cross-on
on
cross-on
cross-on
cross-on
on
High Tide
11:55AM1.58m
10:09PM1.81m
2:33PM1.61m
11:29PM1.70m
3:55PM1.74m
1:41AM1.69m
4:33PM1.87m
3:10AM1.79m
5:01PM1.98m
4:09AM1.94m
5:28PM2.07m
4:56AM2.07m
5:52PM2.13m
Low Tide
4:16PM1.39m
6:11AM0.70m
6:22PM1.53m
7:54AM0.67m
9:04PM1.46m
9:12AM0.56m
10:03PM1.30m
10:06AM0.45m
10:41PM1.12m
10:48AM0.37m
11:13PM0.94m
11:25AM0.33m
11:44PM0.77m
thunderstorm
thunderstorm
heavy rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
mod rain
cloud
clear
clear
clear
clear
clear
clear
part cloud
rain showers
light rain
light rain
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:52
5:52
5:52
5:52
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:35
6:34
6:32
6:30
6:30
6:29
6:27
 mm
45
83
209
82
17
42
27
8
9
1
3
3
7
Temp °C
26
25
25
26
26
26
26
26
26
27
29
27
28
28
27
28
28
27
25
25
26
Feels °C
28
29
22
26
28
25
25
25
27
27
29
27
28
29
30
29
29
27
25
26
29
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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