Surf Forecasts:
Maslin Beach surf forecast from 9 Aug 2026:
- Most powerful swell: Wednesday 12 Aug, 6AM (local time) - 5.5ft (1.7m), 6s period, WSW swell with 193 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 1.7m 6s and forecast to arrive on Wednesday (Aug 12) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 4s period and expected on Wednesday (Aug 12) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6AM (Wed 12th Aug) | 5.5ft (1.7m) 6s |
Table - best surf conditions forecast for Maslin Beach over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s have a look at what Maslin Beach has on offer over the next couple of weeks. I’ve got to be straight with you—this is a tough stretch. The swell window is open, but the size and the wind just aren’t playing ball for any decent surfing.
Right now, we’re in a flat spell. The first real chance of anything rideable doesn’t show up until Wednesday the 12th of August, but even then it’s a struggle. Wednesday morning brings a weak 4ft swell from the WSW at 6 seconds—that’s a short-period windswell, all chop and no shape. The combined wave energy is only moderate (111), and with a moderate cross-onshore breeze from the WSW, it’s going to be messy. Not worth paddling out for. The water temp is sitting at about 57°, which is pretty much bang on average for this time of year.
Thursday the 13th and Friday the 14th drop right off. We’re talking knee-high dribble—1ft to 0.7ft—with light onshore winds. Clean, sure, but there’s nothing to ride. Saturday the 15th and Sunday the 16th are even smaller, with a tiny 0.7ft to 0.3ft swell and light offshore or cross-off winds. The combined energy is in the single digits—basically a lake.
There’s a bit of a tease from Monday the 17th through to Friday the 21st, with occasional clean conditions and light cross-off breezes, but the swell stays tiny—never cracking 1ft. The period on some of those pulses is long (14 seconds), which would be great for a point break, but at Maslin, a beach-and-reef setup, that long-period energy just won’t wrap in properly with no size behind it.
The only half-interesting blip comes on Tuesday the 25th of August—over a week and a half away—when a small 2ft pulse from the north shows up, but with a short period of 4 seconds and a light cross-onshore breeze, it’s still going to be sloppy and weak. Combined energy is only 14—barely a ripple.
Honestly, there’s no standout window here. Nothing worth chasing. If the wind turns offshore and a proper groundswell sneaks in, things could change, but as it sits, the board stays on the rack. For the next two weeks, you’re better off finding something else to do.
Stay salty.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Tue night. Very mild (max 14°C on Tue morning, min 11°C on Tue night). Winds decreasing (fresh winds from the NNW on Tue afternoon, light winds from the SW by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Thu morning, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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 6 | WSW 5 | W 5 | NW 4 | NNW 5 | WSW 5 | WSW 6 | WSW 5 | WSW 5 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 154 | 49 | 17 | 43 | 47 | 105 | 111 | 74 | 19 | 15 | 15 | 24 | 22 | 6 | 13 | 6 | 6 | 8 | 8 | 8 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross | cross | on | cross-on | on | cross-on | on | on | on | on | on | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off |
High Tide | 3:10PM1.59m | 5:27AM1.02m | 3:50PM1.76m | 5:11AM1.12m | 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 | ||||||||
Low Tide | 10:56PM0.18m | 9:20AM0.81m | 11:05PM0.11m | 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 | ||||||||
 |  |  | | |  | |  |  | | | | | |  | | | | | | | |
 | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — |
 | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — |
mm | — | — | — | — | — | 3 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 13 | 14 | 14 | 13 | 13 | 13 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 11 |
Feels °C | 8 | 7 | 8 | 7 | 6 | 8 | 8 | 8 | 10 | 11 | 11 | 12 | 12 | 11 | 12 | 10 | 9 | 9 | 9 | 10 | 7 |
Swell 1 Height (m) Direction Period (s) | — | WSW 10 | WSW 9 | WSW 9 | W 6 | N 4 | — | WSW 9 | WSW 9 | WSW 9 | WSW 5 | S 16 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 |
| kJ | — | 37 | 17 | 8 | 41 | 3 | — | 8 | 15 | 15 | 5 | 5 | 22 | 6 | 13 | 6 | 6 | 6 | 6 | 6 | 6 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 17 | S 16 | S 16 | WSW 9 | — | S 16 | S 17 | S 16 | — | S 15 | SW 15 | SW 14 | SW 14 | S 13 |
| kJ | — | — | — | — | — | — | — | 6 | 5 | 5 | 15 | — | 5 | 5 | 5 | — | 5 | 8 | 8 | 8 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | S 16 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | WSW 5 | W 5 | NW 4 | NNW 5 | WSW 5 | WSW 6 | WSW 5 | WSW 5 | W 4 | — | WSW 8 | — | WNW 3 | — | — | — | — | — | — | — |
| kJ | 154 | 49 | 15 | 43 | 47 | 105 | 111 | 74 | 19 | 9 | — | 24 | — | 2 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 613 | 822 | 38 | 381 | 381 | 900 | 900 | 606 | 38 | 38 | 39 | 38 | 38 | 126 | 126 | 126 | 126 | 39 | 38 | 126 | 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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