Aldinga Beach Surf Break

Lat Long: 35.29° S 138.45° E

Aldinga Beach Surf Forecast and Surf Report

Issued: 2 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Aldinga Beach sea temperature is
13.9° C
0.4° 

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, 9AM (local time) - 1.5ft (0.5m), 9s period, WSW swell with 47 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 0.5m 9s and forecast to arrive on Friday (Aug 21) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 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 Powerful 9AM (Fri 21st Aug)1.5ft (0.5m) 9s

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


The Lowdown

Alright, I’ll be honest with you – the outlook for Aldinga Beach over the next 16 days is pretty grim. The water temp is sitting at 57°F, which is about normal for this time of year, but that’s about the only thing that’s average. We’ve got a long stretch of flat to tiny, weak swell and mostly cross or onshore winds, so don’t be expecting much.

Let’s break it down. Starting Thursday the 20th of August, we’ve got a combined energy of only 33 (weak) with a 1ft swell from the WSW and a 9-second period, but it’s coming with a 15 mph cross wind from the NW. That’s a no-go. Friday the 21st sees a tiny 2ft swell at 9 seconds from the WSW, but at least the wind is offshore early – still, the energy is just 54 (weak) and it’s not enough to get excited about.

Saturday and Sunday the 22nd and 23rd are basically flat. The swell drops to 0.3-0.7ft with combined energy in the teens and single digits. The wind does go light and even cross-off or clean on Sunday morning, but there’s nothing to ride.

Monday the 24th is a real tease – we get a glassy moment in the afternoon with a 0.3ft SW swell, but again, that’s ankle-deep at best, with energy at just 4. The rest of the week through to the 31st of August is a mix of tiny swell, poor surf conditions, and increasing wind. The 28th of August (Friday) might be the best of a bad bunch – a 2ft W swell at 9 seconds with clean cross-off winds from the NNE, combined energy of 43. That’s still weak, but it’s the only window where the conditions are clean and there’s a tiny bit of shape.

After that, from the 29th of August into early September, it’s more of the same – flat to 1ft, messy winds, rain showers, and combined energy barely cracking 20. The 2nd of September (Wednesday) offers a 1ft WSW swell at 8-10 seconds with moderate cross winds, energy at 45 – still poor, but the most consistent energy we’ve seen in a while. The 3rd and 4th of September are back to tiny and weak.

Honestly, there’s nothing here worth paddling out for. The swell is too small, the period is short, and the wind is rarely on your side. This is a classic run of flat conditions for Aldinga, so don’t hold your breath. If you’re desperate, keep an eye on the 28th of August – it’s the only day that might offer a clean little wave for a beginner, but it’s still a long shot. Forecasts can change, but right now, I’d leave the boards at home.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Very mild (max 14°C on Sun morning, min 9°C on Tue night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
AM
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
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
W
4
0.8
WNW
4
0.6
W
5
0.5
WSW
9
0.2
WSW
9
0.5
W
4
0.2
WSW
8
0.2
WSW
8
0.3
WSW
8
0.2
WSW
8
0.2
WSW
8
0.2
WSW
9
0.1
SW
9
0.1
SW
9
0.1
SW
9
0.1
SW
16
0.4
SW
7
0.2
WSW
9
0.2
WSW
10
0.2
WSW
10
0.2
W
8
Wave Graph
Metric surfscale
Energy kJ
17
26
18
47
8
9
8
7
14
7
7
7
3
3
3
10
13
8
10
9
5
Wind (km/h)
25
NW
20
WNW
10
W
15
WSW
15
W
10
W
10
WSW
5
WNW
5
E
10
N
10
NNW
5
NE
10
NNW
5
W
10
SE
15
S
20
SSW
5
SSE
10
NNW
10
NNW
10
NNE
Wind State
cross
cross-on
on
on
cross-on
cross-on
on
cross-on
off
cross-off
cross
cross-off
cross
glassy
cross-off
cross-on
cross-on
glassy
cross
cross
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
1:55PM0.50m
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
clear
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
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
Temp °C
14
14
12
14
14
13
13
13
12
14
14
14
14
14
12
14
14
11
11
11
10
Feels °C
9
10
9
10
11
11
11
12
11
11
11
13
12
13
10
10
9
9
8
9
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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