Surf Forecasts:
Maslin 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 48 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 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 0.6m 4s period and expected on Thursday (Aug 27) at 9AM.
| Wave Type | Time (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 Maslin Beach over the next 16 days.
The Lowdown
G'day, I'm Rusty, and I've got the outlook for Maslin Beach. Let's be straight with you – this stretch of sand and reef is a beginner-friendly spot, but the 16-day forecast is a grim one. There's simply no good surf on offer for the entire period. We're looking at a blank run from now through to the start of September, which, for a spot that's already inconsistent, is pretty standard for this time of year.
The first record we see is for Thursday, 20th August, and it's a shocker. We've got a weak 2ft swell from the west with a pathetic 4-second period, and a cross-on wind from the NW at 16 mph. The combined wave energy is a measly 36 – that's weak. It's poor surf conditions, and it stays that way. The water temperature is sitting at 57°, which is about average for the time of year, so no surprises there.
We then go through a long stretch of tiny, messy waves. Friday and Saturday see nothing but ankle-biters, with swell heights barely reaching 2ft. The wind flips around, but it's always wrong. Sunday the 23rd offers a bit of a cleaner look with a light cross-offshore breeze in the morning, but the swell is only 0.7ft, so there's nothing to ride. The energy is almost non-existent, with values like 7 and 12.
The whole first week is a write-off. We see a brief moment of glassy conditions on Monday afternoon the 24th, but with a 0.3ft swell, it's a flat calm. The combined energy drops to 3. It's a consistent pattern of poor surf conditions, with the wind switching between cross, cross-on, and onshore, and the swell energy never climbing above 60. The period is often a short, weak windswell.
Into the second week, it's more of the same. Friday the 28th of August sees a slight bump in height to 3ft from the north, but with a 4-second period and a strong cross-offshore wind, it's not going to be any good. The energy is still only 54. The following days are a write-off again, with strong winds and tiny swells. The combined energy values are below 20 for most of the days.
The final day of the forecast, Friday the 4th of September, offers a glimmer with glassy conditions in the morning, but the swell is a pathetic 0.7ft. It's a tease. The combined energy is 18. There's no standout, no hidden gem. The whole 16-day window is a flat, blown-out mess. The only real takeaway is that if you're a kite surfer, some of those stronger cross-on days might look interesting, but for a paddle surfer, it's a tough call. Keep the board in the shed, mates. This run is a dud.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Thu morning, min 10°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Tue morning. Very mild (max 14°C on Sun afternoon, min 8°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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 4 | WNW 4 | W 5 | WSW 9 | WSW 9 | W 4 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | W 8 | SW 9 | W 9 | SW 9 | SW 8 | SW 15 | WSW 5 | WSW 8 | WSW 8 | SW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 19 | 24 | 18 | 48 | 8 | 9 | 8 | 7 | 7 | 7 | 7 | 5 | 3 | 2 | 3 | 2 | 9 | 3 | 7 | 6 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | on | on | off | cross-off | cross-on | cross-off | cross | glassy | cross-on | cross | cross-on | cross-off | cross | cross-on | 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 | ||||||||
 |  |  | | | | | | | |  |  | | | |  | | | | | | |
 | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:43 | — | — |
 | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 14 | 14 | 13 | 13 | 13 | 14 | 13 | 14 | 12 | 13 | 14 | 13 | 14 | 14 | 13 | 13 | 14 | 10 | 10 | 11 | 11 |
Feels °C | 9 | 10 | 10 | 10 | 10 | 12 | 11 | 13 | 11 | 10 | 12 | 12 | 11 | 13 | 12 | 10 | 9 | 8 | 8 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 9 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 4 | WSW 5 | WSW 8 | WSW 8 | WSW 8 | W 8 | W 8 | N 3 | SW 9 | SW 8 | W 6 | WSW 5 | WSW 8 | WSW 8 | W 4 |
| kJ | 17 | 16 | 14 | 48 | 8 | 8 | 5 | 4 | 7 | 7 | 7 | 5 | 1 | 1 | 3 | 2 | 1 | 3 | 7 | 6 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 14 | SW 13 | SW 15 | WSW 9 | WSW 8 | W 5 | S 14 | SW 11 | SW 10 | SW 9 | W 8 | — | S 16 | W 8 | SW 9 | W 11 | — | W 8 |
| kJ | — | — | — | 7 | 7 | 9 | 7 | 7 | 2 | 4 | 5 | 4 | 3 | 1 | — | 5 | 1 | 3 | 2 | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 14 | S 14 | S 14 | — | — | — | — | W 9 | — | — | SW 15 | S 14 | S 13 | — | SW 9 |
| kJ | — | — | — | — | — | — | 8 | 4 | 4 | — | — | — | — | 2 | — | — | 9 | 4 | 4 | — | 3 |
Wind waves Height (m) Direction Period (s) | W 4 | WNW 4 | W 5 | — | W 5 | W 4 | — | — | — | — | — | — | — | — | — | — | SW 3 | — | — | NNW 2 | — |
| kJ | 19 | 24 | 18 | — | 4 | 8 | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 443 | 38 | 38 | 38 | 38 | 39 | 135 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 126 | 126 | 126 | 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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