Surf Forecasts:
Maslin Beach surf forecast from 17 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 6PM (local time) - 3.5ft (1.1m), 6s period, W swell with 83 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 1.1m 6s and forecast to arrive on Wednesday (Aug 19) at 6PM. Winds are predicted to be 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 Tuesday (Aug 18) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6PM (Wed 19th Aug) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Maslin Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here, looking at the surf outlook for our region. I gotta be straight with you – it’s a tough stretch ahead. There’s hardly any decent surf on the cards, with a massive gap of nothing worth paddling out for.
Right now and for most of the next week or so, it’s flat as a tack. We see a few tiny pulses of swell, but they’re all under 2 ft with poor conditions. Not even worth dragging the board off the rack. The combined energy is barely a whisper, with values like 7 or 9 (weak). The only thing to note is that on Monday the 17th there’s a long period swell (13 seconds) coming from the SW, but at just 0.3 ft, it’s a ghost.
We finally see a glimmer of hope on Sunday the 30th of August. That’s the only real standout, and it’s a long way off. Maslin Beach sees a bump of SW groundswell pushing 5 ft in the morning and 6 ft in the afternoon, with a short period of 5-6 seconds. The combined energy jumps to 149 (moderate) and then 237 (moderate). What’s got me excited is the wind: light offshore breezes from the East both sessions at 6 mph, keeping it clean. That’s a major positive. The swell is a bit short-period for a beach break, so it might be a bit crumbly, but clean waves over 5 ft are a rarity around here. It’s promising, but being ten days out, I’d keep the optimism in check. The water temp is pretty normal for this time of year at 57°.
After that little window? The taps turn off again. Monday the 31st drops back to 1 ft with poor surf. So, there it is. One long-range, promising-but-uncertain day to pencil in. Don’t hold your breath on much else. This is a tough spell for the region, but forecasts can change.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Tue night. Very mild (max 16°C on Mon morning, min 12°C on Wed night). Winds decreasing (fresh winds from the N on Tue night, light winds from the WNW by Wed night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Fri afternoon, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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 | SW 13 | SW 14 | SW 13 | N 3 | N 4 | NW 5 | W 5 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | SW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 7 | 8 | 7 | 3 | 35 | 49 | 70 | 36 | 17 | 16 | 15 | 16 | 9 | 9 | 8 | 8 | 8 | 7 | 6 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross | cross-off | cross-on | on | cross-on | cross-on | cross-on | glassy | cross | on | glassy | cross-on | cross-on | glassy | cross | on | cross-on |
High Tide | 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 | 8:27AM1.44m | 5:30PM0.91m | 9:14AM1.25m | |||||||||
Low Tide | 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 | 3:41PM0.90m | 00:24AM0.53m | 10:53PM0.50m | ||||||||
 | |  |  | |  | |  | | | | | | |  | | | | |  | | |
 | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — |
mm | — | — | — | 1 | 1 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 12 | 13 | 14 | 13 | 14 | 14 | 13 |
Feels °C | 12 | 11 | 9 | 12 | 13 | 9 | 8 | 10 | 10 | 10 | 12 | 12 | 11 | 13 | 12 | 11 | 13 | 11 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 14 | W 10 | W 10 | SW 10 | — | S 14 | WSW 10 | W 5 | WSW 9 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | W 7 |
| kJ | 7 | 7 | 8 | 2 | 2 | 4 | — | 4 | 36 | 8 | 16 | 15 | 16 | 9 | 9 | 8 | 8 | 8 | 7 | 6 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | W 10 | SW 13 | S 13 | — | — | — | — | WSW 9 | W 5 | — | SW 14 | SW 14 | SW 15 | S 14 | — | S 15 | S 14 | SW 10 | SW 9 |
| kJ | — | — | 2 | 7 | 3 | — | — | — | — | 17 | 4 | — | 7 | 8 | 9 | 4 | — | 4 | 4 | 4 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 3 | — | N 4 | N 3 | N 3 | N 4 | NW 5 | W 5 | W 5 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | — | 7 | 6 | 3 | 35 | 49 | 70 | 28 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 39 | 39 | 39 | 38 | 38 | 39 | 613 | 38 | 138 | 138 | 38 | 38 | 41 | 38 | 38 | 47 | 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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