Aldinga Beach Surf Break

Lat Long: 35.29° S 138.45° E

Aldinga Beach Surf Forecast and Surf Report

Issued: 2 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Aldinga Beach sea temperature is
14.1° C
0.3° 

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


Aldinga Beach surf forecast from 20 Aug 2026:

  • Most powerful swell: Friday 21 Aug, 12AM (local time) - 2ft (0.6m), 5s period, W swell with 18 kJ wave energy.

Best Forecast Surf Conditions for Aldinga Beach this week:

The most powerful waves expected at Aldinga Beach in the next 16 days are 0.6m 5s and forecast to arrive on Friday (Aug 21) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Thursday (Aug 27) at 9AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful12AM (Fri 21st Aug)2ft (0.6m) 5s

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


The Lowdown

G’day, it’s Rusty here.

Honestly, looking at this next stretch for Aldinga Beach, it’s a pretty bleak picture for quite a while. We’re staring down the barrel of a long, flat spell to kick things off. For the first week, there’s simply nothing doing. Day after day we’re looking at tiny, wind-chopped dribble that’s not worth paddling out for. It’s going to be a test of patience, that’s for sure.

That flatness hangs around for about eight days, with barely a ripple. You’ll see a couple of stray pulses early on, but nothing with any push. The 29th of August shows a sudden jump in the swell – we’re talking a solid 6ft, but it’s coming from the WNW with a short, weak 6-second period. The energy is reading at 254, which is moderate, but the quality is just poor. It’s going to be a lumpy, cross-onshore mess, so I wouldn’t get too excited. The wind swings offshore from the ESE, so it will be clean, but the swell is too wind-swell-like to offer any real shape. This one is more for the kite crew than us paddle surfers.

Finally, towards the end of the period, around the 30th of August, we get a little life. It’s still small, but it becomes surfable. Sunday morning sees 4ft of west swell, and by the afternoon it drops slightly to 4ft, but the wind goes glassy. That’s the standout moment in this whole window – the conditions will be clean and smooth. The period is still short at 5-6 seconds, and Aldinga is inconsistent at the best of times, so it won't be epic, but it'll be something. That glassy morning and afternoon looks like the pick of a pretty average bunch.

The energy stays moderate as we head into September 1st, with 4-5ft of west swell and a glassy morning again. It’s still very ordinary, but clean and surfable. This patch is the best we get, but it’s not lighting the world on fire.

The water temp is running normal for this time of year at 57°, which is about right. But the biggest takeaway is that this is a long, drawn-out flat spell. When it’s this quiet for this long, it never tends to stay that way forever, and a change is always around the corner. Keep the board ready, but don’t rush down just yet.

The real glimmer, if you can call it that, is that Sunday the 30th and Monday the 1st offer the only genuine windows of clean, surfable (if small) waves. After that, it looks like it starts to get messy again with a fresh cross-onshore breeze on the 3rd of September.

Keep an eye on the long-range, as that sharper WNW pulse on the 29th could be a sign of things to come, even if it’s not great itself right now.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 14°C on Thu afternoon, min 10°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Mon night. Very mild (max 15°C on Mon morning, min 9°C on Tue night). Winds increasing (calm on Sun afternoon, fresh winds from the S by Tue morning).

Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
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
0
0
0
0
0
0
0
0
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)
0.7
WNW
4
0.6
W
5
0.3
WSW
9
0.4
W
5
0.5
W
4
0.2
WSW
9
0.2
WSW
8
0.3
WSW
8
0.2
WSW
8
0.2
WSW
8
0.2
W
8
0.1
SW
9
0.1
SW
9
0.1
SW
8
0.6
SW
4
0.5
SW
4
0.1
SW
14
0.2
WSW
8
0.2
WSW
8
0.1
SW
9
Wave Graph
Metric surfscale
Energy kJ
17
18
16
8
9
8
7
13
7
7
5
3
3
3
10
9
8
6
6
3
Wind (km/h)
25
WNW
15
WSW
10
W
15
W
10
WNW
15
W
5
WNW
5
ENE
10
N
10
NW
5
NE
10
N
5
WNW
5
N
30
S
25
S
15
SSW
5
SSW
10
W
10
NE
Wind State
cross-on
on
cross-on
cross-on
cross-on
on
cross-on
off
cross-off
cross-on
cross-off
cross-off
cross-on
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
High Tide
7:14PM1.18m
7:59AM1.61m
7:10PM1.01m
8:27AM1.44m
5:30PM0.91m
9:14AM1.25m
7:04AM1.03m
2:48PM1.37m
4:54AM1.07m
3:25PM1.57m
4:39AM1.20m
3:54PM1.74m
Low Tide
1:07AM0.31m
2:29PM0.69m
1:05AM0.44m
3:41PM0.90m
00:24AM0.53m
10:53PM0.50m
8:09AM1.03m
10:25PM0.36m
9:13AM0.83m
10:28PM0.22m
9:42AM0.63m
10:40PM0.10m
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
light rain
rain showers
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:50
6:48
6:47
6:46
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:46
5:47
5:49
5:49
5:50
5:51
5:52
 mm
2
1
Temp °C
14
13
13
13
14
13
14
12
14
14
13
15
14
13
14
13
11
12
11
9
Feels °C
10
10
11
9
12
11
13
11
12
12
12
12
12
12
7
7
7
9
8
7
  • 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 Aldinga Beach Surf forecast

The above surf forecast table for Aldinga Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Aldinga Beach can be found by selecting the local surf guide option on the grey menu. Our Aldinga Beach 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 (Aldinga Beach) 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 Aldinga Beach 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.

Are you planning a holiday in Adelaide? If you are looking for accommodation near Aldinga Beach, camping, hotels and holiday cottages in Adelaide, consider staying in Morphett Vale which is 19 km (12 miles) away. Other places in and around Adelaide where you can find information about places to rent, and car hire include Rapid Bay which is 36 km (22 miles) away, Adelaide, Adelaide Hills and Port Adelaide.

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