Surf Forecasts:
Maslin Beach surf forecast from 11 Aug 2026:
- Most powerful swell: Wednesday 12 Aug, 9AM (local time) - 4.5ft (1.3m), 6s period, WSW swell with 104 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 1.3m 6s and forecast to arrive on Wednesday (Aug 12) 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 0.5m 3s period and expected on Monday (Aug 17) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9AM (Wed 12th Aug) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Maslin Beach over the next 16 days.
The Lowdown
Right, folks. Rusty here. Gotta be straight with you—this is a tough one for Maslin Beach. The whole 16-day window is basically a write-off for decent surf. The combined energy readings are almost all in the doldrums, with the highest we see all the way out on Sunday the 23rd hitting a solid 725, but even then the timing and conditions aren't ideal. For the vast majority of the run, the swell is tiny, often under 1 ft, and periods are short, mostly under 8 seconds, which means weak, gutless waves. The water temp is sitting at 57°, which is about average for this time of year, so nothing weird there.
The only real blip on the radar comes on the morning of Sunday the 23rd of August. There's a jump in swell to 8 ft from the WSW, with a combined energy of 725. That's a solid pulse of energy. It's paired with a cross-offshore breeze from the ESE at 15 km/h, which should keep it clean. The period is short at 8 seconds, so it'll be a bit fat and crumbly, but for a beach and reef setup, it's the only chance of a wave that’s worth paddling out for. However, at 8 ft, this is expert territory. Beginners need to stay well clear. The afternoon of that same day drops to 5 ft, which is more manageable, but the energy is down to 236.
Before that, it's a barren wasteland. From the 12th right through to the 22nd, there's nothing. The swell barely reaches 1 ft on most days, and when it does hit 6 ft on the afternoon of the 22nd, the wind is a light cross-onshore, and the period is a messy 6 seconds. The whole setup is more interesting for a kite surfer than a paddle surfer on those days.
After the 23rd, it drops straight back to nothing. The rest of the month shows tiny, short-period windswell from the west and north, with moderate to strong winds on the 26th and 27th that will chop it up anyway.
So, in short, don't hold your breath. The one standout is the morning of Sunday the 23rd of August for experts only. Everyone else, maybe take a break. The long stretch of flatness is pretty normal for this area in winter, but it won't stay this way forever. Forecasts can change.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed afternoon. Very mild (max 15°C on Fri morning, min 12°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Mon morning, min 10°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 6 | W 5 | W 5 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | W 8 | W 8 | W 8 | SW 14 | SW 14 | SW 14 | W 10 | N 4 | SW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 104 | 39 | 17 | 16 | 15 | 15 | 23 | 13 | 6 | 6 | 6 | 7 | 1 | 1 | 1 | 7 | 7 | 8 | 2 | 4 | 4 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | on | on | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross | cross-off |
High Tide | 4:22PM1.88m | 5:13AM1.26m | 4:49PM1.93m | 5:24AM1.43m | 5:14PM1.93m | 5:40AM1.60m | 5:37PM1.87m | 6:00AM1.74m | 6:00PM1.78m | 6:22AM1.84m | 6:21PM1.66m | 6:45AM1.88m | 6:42PM1.51m | ||||||||
Low Tide | 9:57AM0.60m | 11:16PM0.07m | 10:29AM0.41m | 11:27PM0.05m | 10:59AM0.27m | 11:39PM0.03m | 11:29AM0.17m | 11:53PM0.01m | 11:58AM0.13m | 00:08AM0.01m | 12:28PM0.15m | 00:25AM0.04m | 12:56PM0.23m | 00:41AM0.10m | |||||||
 |  |  | | |  | |  |  | | | |  | | | | | | | | | |
 | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 13 | 13 | 12 | 14 | 14 | 14 | 15 | 14 | 14 | 13 | 14 | 12 | 13 | 13 | 14 | 17 | 17 | 14 | 18 | 18 | 17 |
Feels °C | 8 | 9 | 9 | 11 | 11 | 11 | 12 | 12 | 11 | 10 | 10 | 8 | 9 | 8 | 10 | 13 | 13 | 11 | 13 | 16 | 13 |
Swell 1 Height (m) Direction Period (s) | S 19 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | W 8 | W 8 | W 8 | SW 14 | SW 14 | W 10 | W 10 | W 10 | SW 10 |
| kJ | 7 | 15 | 16 | 16 | 15 | 15 | 23 | 13 | 6 | 6 | 6 | 7 | 1 | 1 | 1 | 7 | 7 | 2 | 2 | 2 | 4 |
Swell 2 Height (m) Direction Period (s) | — | S 17 | S 16 | S 16 | S 16 | S 16 | S 16 | S 16 | S 16 | S 15 | S 16 | S 14 | S 14 | S 14 | S 14 | — | — | SW 14 | S 13 | S 13 | — |
| kJ | — | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | — | — | 8 | 3 | 3 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 6 | W 5 | W 5 | W 4 | WSW 5 | WSW 5 | — | — | — | — | — | ESE 2 | ESE 2 | SE 2 | ESE 3 | ESE 3 | — | ENE 3 | NNE 3 | N 4 | NNE 3 |
| kJ | 104 | 39 | 17 | 10 | 8 | 5 | — | — | — | — | — | 1 | 1 | 1 | 4 | 3 | — | 1 | 7 | 4 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 621 | 614 | 38 | 38 | 38 | 38 | 38 | 126 | 126 | 39 | 137 | 39 | 126 | 141 | 38 | 38 | 39 | 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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