Surf Forecasts:
The groyne surf forecast from 8 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 7AM (local time) - 3ft (0.9m), 5s period, SE swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 4PM (local time) - 10ft (3.0m), 8s period, SE swell with 908 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 7AM (local time) - 3ft (0.9m), 5s period with SE swell.
Best Forecast Surf Conditions for The groyne this week:
The surf forecast for The groyne over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 09) at 7AM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.4m and 8s. Another secondary swell of 0.3m and 9s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The groyne in the next 16 days are 3.0m 8s and forecast to arrive on Thursday (Sep 10) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Wed 9th Sep) | 3ft (0.9m) 5s |
| Best Surf | 7AM (Wed 9th Sep) | 3ft (0.9m) 5s |
| Most Powerful | 4PM (Thu 10th Sep) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
Rusty here again, taking a look at this 16-day stretch.
Straight off, there isn’t much to work with. There’s a long quiet spell from the start of September all the way through until the third week. The first surfable day doesn’t come until Friday, 18 September, and even then it’s just barely worth paddling out.
The only spot in play here is The groyne, but for the vast majority of this time, the wind and sea state make it a waste of effort. That constant cross-onshore flow out of the south-southeast and southeast keeps conditions choppy and lumpy. There’s a pulse of swell around Thursday, 10 September, with waves hitting 7.9 ft to 9.8 ft out of the southeast (combined energy at 487 to 912, which is moderate to strong energy), but it comes with a 22 mph breeze from the SSE, making it messy and blown out. No way to enjoy that.
Water temp sits at 69.6°, which is standard for this time of year, so nothing unusual there.
The one real chance comes Friday morning, 18 September. Winds go glassy, just 5 mph from the east, and you’ve got a clean 3.9 ft swell from the east. Combined energy is a weak 148, so it’s small and weak, but the glassy surface will make it smooth. That early session is your only real window to get a halfway decent wave.
Saturday morning, 19 September, offers glassy conditions again with north-northeast at 5 mph, but the swell has dropped to just 2 ft. That’s really only going to work on a longboard.
Best on offer – Friday, 18 September, early at The groyne. Glassy winds with 3.9 ft of easterly swell is as good as it gets. After two weeks of junk, this is the moment to be in the water.
Short Range ForecastLight rain (total 9mm), mostly falling on Thu night. Warm (max 20°C on Tue morning, min 15°C on Thu night). Winds increasing (light winds from the NNW on Wed night, strong winds from the SSE by Thu morning). | Days 4-6 Weather SummaryHeavy rain (total 29mm), heaviest during Fri morning. Very mild (max 19°C on Sat morning, min 16°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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) | ENE 7 | SE 5 | SE 6 | SE 5 | ESE 6 | ESE 8 | SE 6 | SE 8 | SE 8 | SE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | E 6 | E 6 | E 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 37 | 70 | 103 | 34 | 21 | 46 | 479 | 908 | 574 | 505 | 406 | 363 | 270 | 238 | 237 | 145 | 141 | 123 | 79 | 95 | 84 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 6:16PM1.89m | 6:39AM1.31m | 7:00PM1.93m | 7:22AM1.45m | 7:40PM1.91m | 8:04AM1.56m | 8:17PM1.84m | 8:43AM1.63m | 8:51PM1.73m | 9:23AM1.66m | 9:23PM1.59m | 10:03AM1.64m | 9:54PM1.43m | ||||||||
Low Tide | 11:29AM0.23m | 00:54AM0.22m | 12:24PM0.17m | 1:31AM0.16m | 1:14PM0.14m | 2:05AM0.12m | 2:00PM0.16m | 2:38AM0.11m | 2:43PM0.23m | 3:09AM0.13m | 3:26PM0.32m | 3:40AM0.16m | 4:10PM0.44m | ||||||||
 |  |  | | |  | |  |  | | | | | | | | | | | |  | |
 | 5:52 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — | 5:48 | — | — | 5:48 | — | — | 5:47 | — | — |
 | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:38 | — |
mm | 2 | — | — | — | — | 2 | 2 | — | 3 | 4 | 3 | 5 | 3 | 3 | — | 2 | 3 | 6 | 1 | — | — |
Temp °C | 20 | 19 | 18 | 19 | 19 | 18 | 18 | 18 | 17 | 18 | 18 | 18 | 19 | 19 | 18 | 19 | 19 | 18 | 19 | 19 | 18 |
Feels °C | 19 | 15 | 15 | 18 | 18 | 18 | 12 | 11 | 11 | 14 | 14 | 15 | 15 | 14 | 14 | 15 | 15 | 16 | 16 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | ENE 7 | ENE 7 | NE 7 | SE 5 | ESE 6 | ESE 8 | E 15 | E 15 | — | E 13 | E 14 | E 14 | E 14 | E 14 | E 14 | ESE 7 | E 13 | ENE 9 | E 6 | NE 8 | E 6 |
| kJ | 37 | 20 | 7 | 34 | 21 | 46 | 4 | 4 | — | 4 | 4 | 4 | 4 | 4 | 4 | 145 | 3 | 7 | 79 | 11 | 84 |
Swell 2 Height (m) Direction Period (s) | SE 6 | E 9 | E 9 | SE 8 | SE 8 | E 8 | E 15 | — | — | SE 22 | — | NE 16 | NE 16 | NE 15 | E 20 | E 13 | SE 20 | E 13 | ENE 8 | E 12 | ENE 8 |
| kJ | 6 | 6 | 14 | 15 | 11 | 13 | 4 | — | — | 19 | — | 10 | 10 | 8 | 8 | 3 | 16 | 3 | 7 | 3 | 7 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 7 | E 6 | E 9 | E 9 | ESE 13 | — | — | — | — | — | — | E 14 | — | E 13 | SE 21 | E 11 | — | E 12 | E 10 | E 12 |
| kJ | 15 | 1 | 1 | 14 | 14 | 17 | — | — | — | — | — | — | 4 | — | 3 | 17 | 2 | — | 3 | 2 | 3 |
Wind waves Height (m) Direction Period (s) | — | SE 5 | SE 6 | — | — | — | SE 6 | SE 8 | SE 8 | SE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | — | ESE 7 | ESE 6 | — | E 6 | — |
| kJ | — | 70 | 103 | — | — | — | 479 | 908 | 574 | 505 | 406 | 363 | 270 | 238 | 237 | — | 141 | 123 | — | 95 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 157 | 15 | 1 | 47 | 1 | 426 | 473 | 152 | 47 | 210 | 47 | 47 | 47 | 47 | 47 | 47 | 13 | 47 | 47 | 13 |
Best forecast wave conditions in Sunshine Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the The groyne Surf forecast
The above surf forecast table for The groyne provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The groyne can be found by selecting the local surf guide option on the grey menu. Our The groyne 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 (The groyne) 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 The groyne 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.
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