Surf Forecasts:
Maslin Beach surf forecast from 15 Aug 2026:
- Most powerful swell: Friday 21 Aug, 6PM (local time) - 4.5ft (1.4m), 6s period, WSW swell with 150 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 Friday (Aug 21) at 6PM. 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 Wednesday (Aug 19) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6PM (Fri 21st Aug) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Maslin Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Look, I’ve been staring at the charts for Maslin Beach and I gotta be straight with you—it’s a bleak stretch ahead for most of the 16-day window. We’re looking at a long, dry spell of tiny, weak surf with mostly poor conditions. The first real pulse of anything half-decent doesn’t show up until just before the end of the month.
The water temp at Maslin Beach is sitting at 57°F right now, which is about average for this time of year, so no dramas there for a winter wetsuit session if the waves were there.
For the first week and a half, we’re talking about surf that’s barely a ripple. From Saturday the 15th right through to the 24th, it’s all 0.3ft to 0.7ft of slop, with combined wave energy often in the single digits (like 7), and a whole lot of “poor surf conditions” labels. There’s a brief flicker on Wednesday the 19th afternoon with a 2ft swell from the north, but it’s a short-period windswell (4 seconds) and the wind is a messy cross-onshore, so it’s choppy and not worth paddling out for. The entire stretch from the 15th to the 24th is a waste of time for a surf check.
Then we hit a bit of a turning point. On Tuesday the 25th, the morning shows a jump to 6ft from the northwest, but it’s a short-period, messy swell (6 seconds) with a cross-shore wind, and the combined energy is moderate at 195. It’s still labelled poor surf conditions. The real standout, the only day I’d bother circling on your calendar, is Wednesday afternoon, the 26th of August. The swell bumps up to 8ft from the southwest with a period of 7 seconds, and the combined energy hits a strong 662. The wind goes cross-offshore from the SSE at 15 km/h (9 mph), which will keep it reasonably clean. This is a solid, powerful swell for experienced surfers—anything over 8ft is expert territory at a beach-and-reef setup like this. It’s the one true pulse of energy in the whole forecast.
Thursday the 27th morning still has a 5ft southwest swell with offshore east winds at 10 km/h (6 mph), making it clean, but the energy drops to 159 and conditions are “very ordinary.” Later that afternoon, the wind goes glassy, but the swell drops to 4ft, and the energy is weak at 97. After that, it fades right back to tiny, insignificant surf through to the end of the month.
So, the honest truth? If you’re a seasoned surfer, keep your eyes on the afternoon of the 26th for that 8ft southwest swell with clean conditions. Everything else in this 16-day window is a flat spell not worth chasing. It’s one of those blank runs where you’re better off waiting for the next forecast update.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Mon morning, min 11°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Tue afternoon. Very mild (max 16°C on Tue morning, min 10°C on Thu night). Winds decreasing (fresh winds from the N on Tue night, calm by Thu night). | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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 8 | W 8 | SW 8 | W 8 | W 8 | W 8 | SW 13 | SW 13 | SW 14 | SW 13 | W 10 | W 10 | N 4 | N 4 | SW 13 | SW 12 | WSW 9 | WSW 8 | W 5 | WSW 6 | SW 6 |
Wave Graph | |||||||||||||||||||||
7 | 4 | 3 | 1 | 1 | 1 | 7 | 7 | 8 | 7 | 2 | 2 | 13 | 11 | 7 | 6 | 8 | 6 | 41 | 130 | 69 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:37PM1.87m | 6:00AM1.74m | 6:00PM1.78m | 6:22AM1.84m | 6:21PM1.66m | 6:45AM1.88m | 6:42PM1.51m | 7:09AM1.84m | 7:00PM1.35m | 7:34AM1.75m | 7:14PM1.18m | 7:59AM1.61m | 7:10PM1.01m | ||||||||
Low Tide | 11:29AM0.17m | 11:53PM0.01m | 11:58AM0.13m | 00:08AM0.01m | 12:28PM0.15m | 00:25AM0.04m | 12:56PM0.23m | 00:41AM0.10m | 1:25PM0.35m | 00:56AM0.19m | 1:55PM0.50m | 1:07AM0.31m | 2:29PM0.69m | 1:05AM0.44m | |||||||
6:58 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | |
— | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | |
mm | — | — | — | — | — | — | — | — | — | 1 | 5 | 2 | 1 | — | — | — | — | — | — | 1 | — |
Temp °C | 14 | 14 | 14 | 13 | 14 | 12 | 17 | 17 | 13 | 16 | 16 | 15 | 15 | 15 | 12 | 13 | 13 | 12 | 13 | 12 | 11 |
Feels °C | 12 | 11 | 10 | 8 | 10 | 9 | 13 | 14 | 8 | 13 | 13 | 11 | 10 | 10 | 8 | 9 | 10 | 10 | 7 | 6 | 4 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | W 8 | SW 8 | W 8 | W 8 | W 8 | SW 13 | SW 13 | W 10 | W 10 | W 10 | W 10 | W 12 | SW 14 | W 4 | W 4 | WSW 9 | WSW 8 | SW 9 | SW 14 | — |
7 | 4 | 3 | 1 | 1 | 1 | 7 | 7 | 2 | 2 | 2 | 2 | 3 | 8 | 3 | 1 | 8 | 6 | 3 | 8 | — | |
Swell 2 Height (m) Direction Period (s) | S 15 | SW 9 | S 14 | S 14 | S 14 | S 14 | — | — | SW 14 | SW 13 | S 13 | — | — | — | N 3 | SW 10 | SW 13 | SW 10 | SW 14 | — | — |
5 | 3 | 4 | 4 | 4 | 4 | — | — | 8 | 7 | 3 | — | — | — | 1 | 4 | 6 | 4 | 8 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | S 15 | — | — | — | — | — | — | — | — | — | — | — | — | SW 13 | SW 12 | — | — | — | — | — |
— | 5 | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 6 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | SE 3 | ESE 2 | SE 2 | — | ESE 2 | — | NNE 3 | NNE 3 | N 3 | NNE 3 | N 4 | N 4 | — | — | WSW 4 | W 3 | W 5 | WSW 6 | SW 6 |
— | — | 2 | 1 | 1 | — | 1 | — | 2 | 3 | 2 | 3 | 13 | 11 | — | — | 1 | 3 | 41 | 130 | 69 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 141 | 39 | 137 | 137 | 38 | 137 | 39 | 39 | 39 | 39 | 38 | 38 | 613 | 38 | 38 | 38 | 38 | 613 | 621 | 626 |
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.











