Surf Forecasts:
Aldinga Beach surf forecast from 18 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 12PM (local time) - 4.5ft (1.3m), 5s period, WNW swell with 76 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 1.3m 5s and forecast to arrive on Wednesday (Aug 19) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Thursday (Aug 20) at 12PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12PM (Wed 19th Aug) | 4.5ft (1.3m) 5s |
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 – we’ve got a dry spell ahead at Aldinga Beach. The whole 16-day window is a write-off for any kind of decent wave. The first valid surf recommendation doesn’t even show, so we’re starting with a blank. From Wednesday 19 August right through to Thursday 3 September, every single session is rated as poor surf conditions. That’s a solid two-week-plus gap with nothing worth paddling out for.
Let’s have a look at what’s going on. The swell is tiny – we’re talking 0.3 ft to 4 ft at best, and that 4 ft on the Wednesday morning is a short-period windswell from the NW with only 5 seconds between waves, and a combined energy of just 62 (weak). The wind is a fresh cross-shore at 19 mph, so that’s a lumpy, choppy mess. Not a single day cracks a decent score. Even when the wind goes light offshore or glassy, like on Tuesday 1 September morning with a glassy north breeze, the swell is only 3 ft from the NNW with a period of 4 seconds and energy of 30 (weak). That’s barely a ripple.
Aldinga Beach is an inconsistent beginner spot, and it’s fairly exposed to the SW, which is the direction we’d want. But the swell never gets going. The strongest energy we see is 94 (still weak) on the Wednesday afternoon, but that’s with a cross-onshore wind and rain showers. On Thursday 27 August morning, we get a 2 ft swell from the WNW with a period of 4 seconds and energy of 11 (very weak), but the wind is a moderate cross-onshore at 16 mph, so it’s choppy again.
We do get a few clean windows towards the end – like Sunday 30 August morning with a light ESE cross-offshore breeze and a 0.3 ft swell from the SW at 10 seconds (energy 5, very weak). But seriously, that’s flat. On Tuesday 1 September morning, glassy conditions with 3 ft from the NNW at 4 seconds (energy 30), the water temp anomaly is about average for this time of year – nothing unusual to report.
Bottom line: this is a blank run for the area. It’s not unusual for Aldinga to go quiet, and once it does, it can stay that way for a stretch. Don’t bother loading the boards for at least the next two weeks. If it looks good for kiting, maybe, but for paddle surfing – forget it. Keep an eye on the forecasts though; things can change.
Rusty
Short Range ForecastLight rain (total 7mm), mostly falling on Tue night. Very mild (max 15°C on Tue night, min 11°C on Thu night). Winds decreasing (fresh winds from the NW on Wed morning, light winds from the WSW by Thu night). | Days 5-7 Weather SummarySome drizzle, heaviest during Mon afternoon. Very mild (max 15°C on Mon morning, min 10°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 10 | NW 5 | WNW 5 | W 5 | WNW 4 | WSW 9 | W 8 | WSW 8 | WSW 8 | WSW 9 | WSW 8 | WSW 9 | WSW 9 | WSW 8 | WSW 9 | WSW 9 | SW 9 | W 8 | WSW 4 |
Wave Graph  | |||||||||||||||||||
 kJ | 4 | 62 | 69 | 36 | 17 | 16 | 42 | 24 | 21 | 9 | 6 | 15 | 8 | 7 | 7 | 7 | 3 | 1 | 3 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-on | cross | cross-on | on | on | on | cross-on | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | cross | cross-on | cross-on |
High Tide | 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 | 7:04AM1.03m | 2:48PM1.37m | ||||||||
Low Tide | 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 | 8:09AM1.03m | 10:25PM0.36m | |||||||
 |  | |  |  | | |  | |  | | | | |  | | | | | |
 | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — |
 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — |
mm | 5 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 15 | 14 | 15 | 13 | 14 | 15 | 13 | 14 | 14 | 14 | 13 | 13 | 12 | 13 | 13 | 12 | 15 | 13 | 11 |
Feels °C | 11 | 8 | 10 | 11 | 10 | 11 | 11 | 10 | 11 | 12 | 11 | 12 | 12 | 10 | 11 | 10 | 12 | 9 | 7 |
Swell 1 Height (m) Direction Period (s) | SW 10 | — | WSW 9 | WSW 9 | WSW 9 | WSW 9 | — | WSW 8 | SW 10 | WSW 9 | WSW 4 | WSW 9 | WSW 9 | WSW 8 | WSW 9 | WSW 9 | W 8 | NNW 3 | WSW 4 |
| kJ | 4 | — | 25 | 35 | 17 | 16 | — | 24 | 4 | 7 | 3 | 15 | 7 | 7 | 7 | 7 | 1 | 1 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | S 14 | — | — | — | — | SW 14 | SW 13 | SW 10 | WSW 8 | SW 14 | SW 14 | — | — | — | — | — | — |
| kJ | — | — | 4 | — | — | — | — | 7 | 7 | 4 | 6 | 8 | 8 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 15 | SW 10 | — | — | — | — | — | SW 9 | W 8 | — |
| kJ | — | — | — | — | — | — | — | — | — | 9 | 4 | — | — | — | — | — | 3 | 1 | — |
Wind waves Height (m) Direction Period (s) | N 4 | NW 5 | WNW 5 | W 5 | WNW 4 | WNW 4 | W 8 | — | WSW 8 | WSW 4 | — | — | — | — | NNW 3 | — | NNW 3 | — | — |
| kJ | 28 | 62 | 69 | 36 | 11 | 16 | 42 | — | 21 | 5 | — | — | — | — | 2 | — | 3 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 33 | 377 | 439 | 33 | 34 | 34 | 33 | 34 | 34 | 33 | 33 | 34 | 33 | 33 | 33 | 33 | 34 | 139 | 122 |
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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