Surf Forecasts:
Aldinga Beach surf forecast from 16 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 6PM (local time) - 4.5ft (1.4m), 6s period, W swell with 125 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 1.4m 6s and forecast to arrive on Wednesday (Aug 19) at 6PM. Winds are predicted to be cross-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 Wednesday (Aug 19) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6PM (Wed 19th Aug) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Aldinga Beach over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ll be straight with you – this outlook is a tough one. We’ve got a 16-day window, but for a solid week and a half, there’s just nothing worth paddling out for. The first real glimmer of something surfable doesn’t show up until Sunday, the 30th of August, and even then it’s a bit of a mixed bag.
Let’s start with the bad news. From Monday the 17th right through to Saturday the 29th, Aldinga Beach is serving up tiny, gutless waves. We’re talking 0.3ft to 1ft for days on end, with a few pulses of 3ft that are so short-period (4 to 5 seconds) they’re just lumpy messes. The wind is all over the shop – cross-offshore, cross-on, onshore – but the energy is just pathetic. The combined swell energy barely cracks double digits most days, sitting around 7 to 31 (weak energy), so it’s not even worth a look. The water temp is 57°F, which is about normal for this time of year, but you won’t be feeling it on a board.
Now, Sunday the 30th of August. This is the only standout on the whole run. The afternoon brings a pulse of 6ft swell from the west, with a period of 6 seconds. The combined energy jumps to 237 (moderate wave energy), which is the biggest number we see. The wind is a light breeze from the east, keeping it clean. But here’s the catch – that short period means the waves will be a bit crumbly and fat, not the crisp, lined-up stuff we dream about. Still, it’s the best we’ve got. This swell is solid enough that it might be a bit much for beginners over 5ft, but it’s not the terrifying 8ft+ stuff either. The crowd situation at Aldinga Beach is “often” busy, so expect some company.
After that, it’s back to the doldrums. Monday the 31st drops to 1ft, and Tuesday the 1st of September is a write-off with a fresh breeze and cross-on shore.
So, the long and short of it: the only window worth your time is the afternoon of Sunday the 30th of August at Aldinga Beach. It’s not perfect – short period, ordinary conditions – but it’s the only game in town. Keep an eye on the sky, because forecasts can change, but right now, this is a pretty blank run. For the rest of the time, you’re better off doing something else.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Tue night. Very mild (max 16°C on Mon afternoon, min 12°C on Mon night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Thu afternoon, min 10°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | SW 13 | SW 13 | SW 14 | SW 13 | W 10 | SW 10 | NW 5 | W 5 | W 6 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 9 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | SW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 7 | 8 | 7 | 2 | 4 | 54 | 99 | 60 | 17 | 15 | 6 | 14 | 17 | 9 | 8 | 8 | 8 | 7 | 7 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | glassy | off | cross-off | cross | glassy |
High Tide | 6:21PM1.66m | 6:45AM1.88m | 6:42PM1.51m | 7:09AM1.84m | 7:00PM1.35m | 7:34AM1.75m | 7:14PM1.18m | 7:59AM1.61m | 7:10PM1.01m | 8:27AM1.44m | 5:30PM0.91m | 9:14AM1.25m | |||||||||
Low Tide | 12:28PM0.15m | 00:25AM0.04m | 12:56PM0.23m | 00:41AM0.10m | 1:25PM0.35m | 00:56AM0.19m | 1:55PM0.50m | 1:07AM0.31m | 2:29PM0.69m | 1:05AM0.44m | 3:41PM0.90m | 00:24AM0.53m | 10:53PM0.50m | ||||||||
 | |  |  | |  | |  | |  | | | | | | | |  | | | | |
 | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — |
mm | — | — | — | 1 | 1 | 7 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 15 | 16 | 16 | 15 | 14 | 14 | 13 | 14 | 15 | 12 | 13 | 13 | 12 | 13 | 13 | 12 | 13 | 13 | 12 |
Feels °C | 12 | 12 | 10 | 12 | 13 | 10 | 8 | 8 | 11 | 11 | 12 | 9 | 10 | 10 | 10 | 11 | 11 | 10 | 9 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 14 | W 10 | W 10 | SW 10 | — | S 14 | WSW 9 | WSW 9 | W 5 | WSW 5 | WSW 8 | WSW 9 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | W 8 |
| kJ | 7 | 7 | 8 | 2 | 2 | 4 | — | 4 | 32 | 17 | 8 | 5 | 14 | 17 | 9 | 8 | 7 | 8 | 7 | 7 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | W 10 | SW 13 | S 13 | — | — | — | — | — | WSW 9 | WSW 8 | SW 14 | SW 14 | W 5 | S 14 | SW 14 | — | S 14 | — | SW 9 |
| kJ | — | — | 2 | 7 | 3 | — | — | — | — | — | 15 | 6 | 8 | 8 | 2 | 4 | 8 | — | 4 | — | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 15 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 3 | — | N 4 | N 3 | N 3 | N 4 | NW 5 | W 5 | W 6 | W 5 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | 7 | 6 | 5 | 19 | 54 | 99 | 60 | 12 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 34 | 34 | 34 | 33 | 34 | 35 | 439 | 33 | 34 | 603 | 34 | 34 | 34 | 33 | 33 | 34 | 33 | 33 | 33 | 33 |
Best forecast wave conditions in Adelaide | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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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