Aoshima Surf Break

Lat Long: 31.81° N 131.47° E

Aoshima Surf Forecast and Surf Report

Issued: 2 pm 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's Aoshima sea temperature is
29.1° C
0.5° 

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


Aoshima surf forecast from 6 Aug 2026:

  • Best quality surf: Friday 7 Aug, 12AM (local time) - 20ft (6.0m), 14s period, ESE swell with onshore winds.
  • Most powerful swell: Thursday 6 Aug, 9PM (local time) - 20ft (6.0m), 14s period, ESE swell with 14,924 kJ wave energy.
  • Next surfable swell (1★+): Friday 7 Aug, 12AM (local time) - 20ft (6.0m), 14s 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 (Aug 07) at 12AM. The primary swell is predicted to be 6.0m and 14s period with a secondary swell of 5.5m and 14s. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Aoshima in the next 16 days are 6.0m 14s and forecast to arrive on Thursday (Aug 06) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Aug 13) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 7th Aug)20ft (6.0m) 14s
Best Surf12AM (Fri 7th Aug)20ft (6.0m) 14s
Most Powerful 9PM (Thu 6th Aug)20ft (6.0m) 14s

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


The Lowdown

Alright folks, Rusty here. Let's have a look at what's coming our way for Aoshima.

Right off the bat, we've got a massive pulse of energy hitting the reef, but don't get too excited just yet. The opening of the period is a bit of a wild one. The first surf on offer is Thursday afternoon, the 6th of August, and it's a beast. We're looking at a solid 23ft swell from the ESE, but the wind is screaming onshore at 28 mph. The combined swell energy is a monstrous 38504, which is serious power. But with that wind, it's going to be a washing machine. For the experts only, and even then, it's a battle.

The pattern then settles down, but the wind stays a problem for a while. Friday through the weekend is mostly blown out with strong onshore winds and poor conditions. We get a bit of a drop in size by Monday the 10th, with 5ft swell from the East, but it's still a bit messy. The water temp is sitting at 84°, which is about average for this time of year.

Now, the real standout for this forecast is a couple of windows of clean, glassy conditions. Wednesday morning, the 12th of August, is a beauty. The wind drops to nothing – glassy – and we've got a clean 3ft swell from the East. The energy is low at 388, but it's a proper little reef wave. This is the best on offer for the first week. It's a beginner-friendly size, and with the glassy conditions, it's going to be a fun session. Be aware that Aoshima can get crowded sometimes, so get there early.

The second standout is a bit further out, and it's a promising one. Wednesday morning, the 19th of August, shows a 6ft swell from the East with glassy conditions again. The energy is moderate at 573, and it's forecast to be "very good surf conditions". This is a solid size, still manageable for most, but the quality is going to be there. The period is 9 seconds, so it's a short-period swell, which will keep the waves chunky and fun on the reef.

There's also a nice little window on the morning of Friday the 21st of August, with 5ft swell and glassy conditions, but that 19th of August morning is the one to circle.

So, to sum it up: the first week is a game of patience. Ride out the big, windy stuff on the 6th if you're a masochist, but the real gold is the glassy mornings on the 12th and especially the 19th. The second week looks more promising than the first, with lighter winds and cleaner conditions. Don't write off the 21st either.

Stay safe, keep your eyes on the horizon, and I'll see you in the water.

Rusty.

Short Range Forecast

Heavy rain (total 110mm), heaviest during Sat night. Warm (max 28°C on Thu afternoon, min 27°C on Thu night). Winds decreasing (strong winds from the ENE on Thu night, moderate winds from the E by Sun morning).

Days 5-7 Weather Summary

Heavy rain (total 31mm), heaviest during Sun afternoon. Warm (max 29°C on Mon morning, min 25°C on Tue night). Wind will be generally light.

Thu
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
!
0
0
0
0
0
0
0
1
1
2
2
2
2
2
2
2
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
7
ESE
15
6
ESE
14
5.5
ESE
13
3.5
SE
13
3
SSE
12
3
ESE
9
3
ESE
9
2.5
ESE
8
2.3
ESE
8
2.2
ESE
8
2
ESE
14
1.5
E
13
1.3
E
12
1.3
E
12
1.1
E
12
1.1
E
11
0.9
E
11
1
E
10
1
E
10
1
E
10
Wave Graph
Metric surfscale
Energy kJ
22553
14641
10515
4333
2590
1346
1350
1000
713
605
1465
760
513
488
325
287
185
214
214
214
Wind (km/h)
45
NE
45
ENE
45
E
40
E
35
E
30
E
30
ESE
25
E
20
E
20
E
20
E
15
E
15
E
10
ESE
10
NNE
10
ESE
10
WSW
0
SSE
15
SSE
5
W
Wind State
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
off
glassy
cross
off
High Tide
11:14PM1.84m
2:34PM1.58m
00:24AM1.79m
4:09PM1.71m
1:55AM1.79m
4:58PM1.85m
3:13AM1.86m
5:33PM1.97m
4:12AM1.96m
6:03PM2.06m
5:01AM2.07m
6:31PM2.13m
Low Tide
5:04PM1.28m
6:56AM0.70m
6:41PM1.44m
8:23AM0.61m
8:51PM1.47m
9:33AM0.47m
10:08PM1.38m
10:25AM0.34m
10:56PM1.27m
11:09AM0.24m
11:33PM1.13m
11:47AM0.18m
00:07AM1.00m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
rain showers
part cloud
cloud
part cloud
clear
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:33
5:33
5:33
5:35
5:35
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:06
7:05
7:04
7:02
7:01
7:00
 mm
4
17
9
9
15
6
7
27
16
17
12
1
1
2
Temp °C
28
28
28
28
28
28
28
27
27
27
27
29
28
27
27
28
26
28
29
27
Feels °C
26
26
26
27
28
29
30
28
29
29
29
32
30
30
30
31
29
30
30
31
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  • 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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