Surf Forecasts:
Maslin Beach surf forecast from 18 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 12PM (local time) - 4ft (1.2m), 5s period, WNW swell with 69 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 1.2m 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 4s period and expected on Thursday (Aug 20) at 6PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12PM (Wed 19th Aug) | 4ft (1.2m) 5s |
Table - best surf conditions forecast for Maslin Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here, back on the beach towel. Let's talk about what we're lookin' at for the next couple of weeks at Maslin Beach, and it's a bit of a story of two halves.
First things first, we've got a huge stretch of flat or messy water. From Tuesday the 18th all the way through to Thursday the 27th, it's a write-off. Tiny blocks of swell, mostly with onshore or cross-onshore winds—not worth paddlin' out for. That's a solid ten days of nothin', so don't bother.
The one and only real shot comes on Friday, the 28th of August. The morning session is the absolute pick of the whole forecast. We're lookin' at a solid 7ft swell from the WSW with a light offshore breeze out of the East. That's a recipe for some clean, lined-up waves. The ocean's got some real punch with a combined energy reading of (336), so it's got some grunt. This is strictly for the experienced surfer—that 7ft is well into expert territory, and with a short 6-second period, the waves might be a bit crumbly and steep. No crowds mentioned, so you could have it to yourself.
Now, that same Friday afternoon, it drops off to a still clean 6ft with the same light offshore breeze, but the energy's halved to (196). It's surfable, the wind's still good, but it's just ordinary. The magic is in that morning window.
After that excitement, we're back to a flat, glassy ocean on the 1st and 2nd of September with nothing to ride.
There's your whole forecast. A long lull, but one crisp, punchy morning to circle on the calendar for the 28th.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Tue night. Very mild (max 17°C on Tue afternoon, min 11°C on Thu night). Winds decreasing (fresh winds from the N on Tue night, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Fri night, min 10°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 | N 4 | N 4 | NW 5 | W 5 | WSW 9 | WSW 9 | WSW 9 | W 6 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | SW 10 | SW 9 | NW 3 | WSW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 4 | 18 | 56 | 51 | 28 | 17 | 16 | 15 | 8 | 15 | 16 | 8 | 16 | 8 | 7 | 7 | 4 | 3 | 2 | 11 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross | cross-on | on | cross-on | cross-on | cross-on | glassy | cross-on | on | glassy | cross-on | glassy | off | cross | cross | cross-off | cross | cross-on | cross-on |
High Tide | 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 | 7:04AM1.03m | 2:48PM1.37m | |||||||||
Low Tide | 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 | 8:09AM1.03m | 10:25PM0.36m | ||||||||
 |  |  | | |  |  | | | | |  | | | | |  | | | | | |
 | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — |
mm | 1 | — | 7 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 |
Temp °C | 16 | 17 | 15 | 14 | 14 | 13 | 13 | 15 | 13 | 13 | 13 | 14 | 12 | 13 | 12 | 13 | 14 | 14 | 15 | 15 | 13 |
Feels °C | 12 | 14 | 10 | 9 | 10 | 10 | 9 | 12 | 11 | 11 | 10 | 13 | 10 | 12 | 12 | 10 | 12 | 12 | 11 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 10 | — | S 14 | WSW 9 | W 4 | WSW 9 | W 6 | WSW 5 | WSW 9 | WSW 9 | WSW 8 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | W 8 | W 8 | W 8 | — |
| kJ | 2 | 2 | 2 | — | 4 | 28 | 9 | 16 | 15 | 6 | 15 | 16 | 6 | 16 | 8 | 7 | 7 | 1 | 1 | 1 | — |
Swell 2 Height (m) Direction Period (s) | SW 13 | S 13 | — | — | — | — | WSW 9 | — | — | WSW 9 | SW 13 | SW 15 | SW 10 | S 14 | S 14 | S 14 | SW 11 | SW 10 | SW 9 | W 9 | SW 8 |
| kJ | 7 | 3 | — | — | — | — | 17 | — | — | 8 | 7 | 9 | 4 | 4 | 4 | 4 | 5 | 4 | 3 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 14 | SW 10 | — | SW 14 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 8 | 4 | — | 8 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | N 4 | N 4 | NW 5 | W 5 | W 5 | NNW 3 | WNW 4 | — | — | — | — | — | — | — | — | N 3 | — | NNW 3 | NW 3 | WSW 4 |
| kJ | 6 | 4 | 18 | 56 | 51 | 26 | 2 | 7 | — | — | — | — | — | — | — | — | 1 | — | 1 | 2 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 38 | 38 | 39 | 443 | 38 | 39 | 138 | 38 | 38 | 39 | 38 | 38 | 39 | 38 | 38 | 38 | 38 | 38 | 39 | 613 |
Best forecast wave conditions in Adelaide | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Maslin Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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