
Surf Forecasts:
The groyne surf forecast from 10 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 1AM (local time) - 2.5ft (0.8m), 6s period, E swell with glassy winds.
- Most powerful swell: Thursday 10 Sep, 4PM (local time) - 8ft (2.5m), 8s period, SE swell with 713 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 1AM (local time) - 2.5ft (0.8m), 6s period with E 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 Tuesday (Sep 15) at 1AM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.1m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at The groyne in the next 16 days are 2.5m 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+) | 1AM (Tue 15th Sep) | 2.5ft (0.8m) 6s |
| Best Surf | 1AM (Tue 15th Sep) | 2.5ft (0.8m) 6s |
| Most Powerful | 4PM (Thu 10th Sep) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
Alright, let’s get into it.
To be straight with you, it’s a pretty grim looking stretch for The groyne. For the next week and a half, there’s nothing here that’s going to get you out of bed early. We’ve got a run of weak, short-period swells under constant cross-onshore winds. The wave energy is low to moderate at best, with readings mostly in the low hundreds, and it’s all wind-affected and lumpy. The swell direction is mostly from the east and southeast, but the wind just keeps messing it up. Honestly, from the 10th through the 18th, it’s mostly a flat, blown-out mess. The only brief moment that looks close to surfable is early on the 15th — Tuesday morning — with a glassy surface and about 3ft of weak swell, but it’s such an ordinary, small wave that it’s hardly worth the paddle.
There’s a slight increase in energy and size on the 19th and 20th — Saturday and Sunday — with the swell jumping up to 7ft and 6ft on the SE, but the wind is still cross or cross-onshore from the north, so it’s going to be choppy and raw. This isn’t a clean, rideable day; it’s a messy, powerful push of water. If you’re desperate, that Sunday morning on the 20th might have some grunt, but the wind is cross-shore and the period is a weak 7 seconds, so it’ll be lumpy and sectiony.
The one thing that pops out is the 24th of September — Thursday morning. We see the swell period jump to 12 seconds, which is a real groundswell, and the energy reading is the highest of the whole outlook. The swell is still small, only about 3ft, but with that longer period and the water temp sitting at 69°F, which is about average for this time of year, there’s a little bit of life in it. The wind is only 3 mph from the SE, with a light cross-onshore touch, so it could be glassy for a bit. It’s a long shot, but it’s the best the groyne is offering in this entire window. It’s a reef break, and long-period swells can straighten out a bit, but this one might just have a pulse.
Other than that, there’s nothing. This is a poor run for the groyne. The water temp being around average (69°F) is about what you’d expect, but it doesn't help the surf.
So, mark your calendar for the 24th, and maybe the 20th if you’re willing to wrestle with the north wind. But otherwise, it’s a lot of nothing for the next two weeks. Forecasts can change, but right now, it’s not looking fun.
Rusty
Short Range ForecastModerate rain (total 19mm), heaviest on Sat morning. Very mild (max 19°C on Thu morning, min 16°C on Fri night). Winds decreasing (fresh winds from the SSE on Thu morning, light winds from the SE by Sat night). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sun morning. Warm (max 20°C on Mon morning, min 15°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 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) | SE 6 | SE 8 | SE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 7 | E 6 | SE 7 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | ENE 6 | E 6 | ENE 7 | ESE 6 |
Wave Graph | |||||||||||||||||||||
418 | 713 | 397 | 320 | 256 | 216 | 161 | 152 | 62 | 51 | 49 | 81 | 62 | 59 | 49 | 47 | 36 | 40 | 27 | 48 | 207 | |
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-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-on | glassy | cross-on | cross-on | on |
High Tide | 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 | 10:45AM1.58m | 10:23PM1.26m | 11:32AM1.51m | 10:52PM1.11m | ||||||||
Low Tide | 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 | 4:11AM0.21m | 4:57PM0.57m | 4:42AM0.27m | 5:52PM0.68m | ||||||||
5:50 | — | — | 5:50 | — | — | 5:48 | — | — | 5:48 | — | — | 5:47 | — | — | 5:46 | — | — | 5:43 | — | — | |
— | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | |
mm | 3 | — | 2 | 2 | 2 | 1 | 4 | 1 | 4 | 3 | 1 | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 19 | 18 | 18 | 18 | 19 | 18 | 18 | 19 | 18 | 19 | 19 | 18 | 20 | 19 | 17 | 20 | 19 | 17 | 20 | 20 | 19 |
Feels °C | 12 | 11 | 13 | 14 | 16 | 15 | 15 | 16 | 17 | 17 | 17 | 16 | 18 | 17 | 17 | 20 | 17 | 16 | 18 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | E 15 | E 14 | — | E 14 | E 14 | E 14 | E 14 | E 14 | E 6 | E 6 | SE 6 | ENE 8 | E 6 | E 6 | E 6 | E 6 | E 6 | ENE 6 | E 6 | ENE 7 | E 13 |
4 | 4 | — | 4 | 4 | 4 | 4 | 4 | 62 | 51 | 26 | 7 | 62 | 59 | 49 | 47 | 36 | 40 | 27 | 48 | 4 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | S 23 | — | NE 16 | NE 16 | NE 15 | SE 7 | NE 8 | NE 8 | E 13 | NE 9 | NE 8 | E 12 | E 12 | E 12 | E 11 | ENE 8 | E 14 | E 11 |
— | — | — | 10 | — | 10 | 10 | 8 | 38 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 21 | 4 | 3 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 16 | — | — | — | — | E 14 | E 13 | E 13 | — | E 12 | E 12 | SE 10 | E 15 | E 15 | E 15 | E 12 | E 11 | — |
— | — | — | 5 | — | — | — | — | 4 | 3 | 3 | — | 3 | 3 | 4 | 4 | 4 | 4 | 3 | 2 | — | |
Wind waves Height (m) Direction Period (s) | SE 6 | SE 8 | SE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 7 | — | SE 7 | E 6 | E 6 | — | — | — | — | — | — | — | SE 3 | ESE 6 |
418 | 713 | 397 | 320 | 256 | 216 | 161 | 152 | — | 49 | 49 | 81 | — | — | — | — | — | — | — | 3 | 207 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 702 | 293 | 152 | 47 | 47 | 15 | 47 | 47 | 1 | 13 | 47 | 13 | 13 | 13 | 0 | 0 | 19 | 0 | 15 | 46 | 47 |
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.










