Surf Forecasts:
Maslin Beach surf forecast from 21 Aug 2026:
- Most powerful swell: Tuesday 25 Aug, 9AM (local time) - 4.5ft (1.4m), 6s period, WSW swell with 114 kJ wave energy.
Best Forecast Surf Conditions for Maslin Beach this week:
The most powerful waves expected at Maslin Beach in the next 16 days are 1.4m 6s and forecast to arrive on Tuesday (Aug 25) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Monday (Aug 24) at 6PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9AM (Tue 25th Aug) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Maslin Beach over the next 16 days.
The Lowdown
Alright mate, Rusty here. Let’s have a look at what’s on offer.
Honestly, the outlook for the next 16 days is a bit of a struggle. The waves are mostly flat, weak, and the wind is all over the place. We’re looking at a long stretch of poor conditions, so don’t get your hopes up for anything exciting.
The water temp at Maslin Beach (Australia) is sitting at 57°F which is about average for this time of year, so nothing unusual there.
The first real sign of any swell energy comes on Tuesday the 25th of August, with a moderate surge of energy (114) and a 5 ft swell from the WSW, but the period is short at 6 seconds and the wind is a choppy cross-onshore. That’s not going to be clean. Then on Thursday the 3rd of September, there’s a similar spike with a 5 ft swell from the north, but again, short period (5 seconds) and a fresh cross-shore wind making it lumpy. Both of these are really only for the die-hards, and it’s going to be messy.
The best bet in the whole window is actually Wednesday the 26th of August morning. It’s small, only 1 ft from the west, but the wind goes glassy, dead calm. That means the surface will be clean as a whistle. It’s tiny, but if you’ve got a log or a foamie, it might be the only session worth paddling out for. The energy is weak (15), so don’t expect any power.
Everything else is a write-off. There are long gaps of several days with nothing but tiny, weak, or wind-affected slop. The swell is just not on our side this time.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Sun afternoon, min 10°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 30mm), heaviest during Mon night. Very mild (max 17°C on Mon morning, min 10°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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) | WSW 9 | WSW 9 | W 4 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | W 8 | SW 9 | N 4 | N 4 | WSW 6 | WSW 5 | WSW 5 | W 5 | WSW 7 | WSW 9 | N 3 | NNW 4 | SW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 8 | 10 | 8 | 8 | 13 | 7 | 7 | 5 | 3 | 6 | 4 | 114 | 42 | 35 | 7 | 5 | 8 | 5 | 5 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | off | cross | cross | cross-off | cross-off | off | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-off | cross | cross | cross-off |
High Tide | 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 | 4:45AM1.35m | 4:20PM1.87m | |||||||||
Low Tide | 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 | 10:09AM0.44m | 10:55PM0.01m | ||||||||
 | |  |  | |  | | | |  |  |  |  | | | | | | | | | |
 | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:43 | — | — | 6:43 | — | — |
 | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | 6 | 23 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 14 | 13 | 13 | 12 | 14 | 15 | 15 | 17 | 13 | 13 | 13 | 14 | 12 | 12 | 13 | 12 | 13 | 15 | 14 |
Feels °C | 9 | 10 | 11 | 11 | 11 | 11 | 11 | 13 | 12 | 13 | 11 | 12 | 8 | 9 | 9 | 11 | 11 | 11 | 8 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | WSW 4 | WSW 9 | WSW 9 | WSW 9 | WSW 5 | WSW 8 | WSW 8 | WSW 8 | W 8 | SW 9 | SW 9 | W 7 | S 16 | SW 16 | SW 14 | WSW 7 | W 4 | W 4 | WSW 7 | WSW 7 | WSW 8 |
| kJ | 6 | 8 | 8 | 7 | 4 | 13 | 7 | 7 | 5 | 3 | 3 | 1 | 5 | 9 | 8 | 5 | 4 | 1 | 4 | 5 | 7 |
Swell 2 Height (m) Direction Period (s) | WSW 9 | SW 13 | SW 15 | SW 14 | WSW 8 | S 14 | — | SW 11 | SW 10 | — | — | — | — | — | — | W 11 | WSW 7 | WSW 9 | — | — | — |
| kJ | 8 | 7 | 9 | 8 | 7 | 4 | — | 5 | 4 | — | — | — | — | — | — | 3 | 5 | 8 | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 14 | — | — | — | SW 14 | — | — | — | — | — | — | — | — | — | — | S 13 | SW 10 | — | — | — | SW 18 |
| kJ | 7 | — | — | — | 8 | — | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — | — | 12 |
Wind waves Height (m) Direction Period (s) | — | W 5 | W 4 | WSW 4 | — | — | — | NNW 3 | — | NNE 3 | N 4 | N 4 | WSW 6 | WSW 5 | WSW 5 | W 5 | NNW 3 | — | N 3 | NNW 4 | NNE 3 |
| kJ | — | 4 | 10 | 6 | — | — | — | 1 | — | 4 | 6 | 4 | 114 | 42 | 35 | 7 | 1 | — | 5 | 4 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 38 | 38 | 38 | 38 | 135 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 591 | 621 | 38 | 38 | 38 | 38 | 38 | 38 | 38 |
Best forecast wave conditions in Adelaide | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Maslin Beach Surf forecast
The above surf forecast table for Maslin Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Maslin Beach can be found by selecting the local surf guide option on the grey menu. Our Maslin 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 (Maslin 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 Maslin 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.
Maslin Beach is 13 km (8 miles) from the very large city of Morphett Vale. If you plan a holiday in Adelaide, look for hotels and other accommodation in Morphett Vale. Morphett Vale has rooms for a wide range of budgets as well as cheap car hire and transport links.
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