Surf Forecasts:
The groyne surf forecast from 12 Sep 2026:
- Best quality surf: Friday 18 Sep, 10PM (local time) - 4.5ft (1.4m), 12s period, ESE swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 10PM (local time) - 10ft (3.0m), 8s period, SE swell with 1,248 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 8s. 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 3.0m 8s and forecast to arrive on Wednesday (Sep 16) at 10PM. 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 3s period and expected on Wednesday (Sep 16) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 15th Sep) | 2.5ft (0.8m) 6s |
| Best Surf | 10PM (Fri 18th Sep) | 4.5ft (1.4m) 12s |
| Most Powerful | 10PM (Wed 16th Sep) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’m gonna level with ya – this isn’t the run of swell we dream about. The Groyne is gonna be a tough watch for the next couple of weeks. The setup is a reef break that’s exposed to swell and works best when the swell is coming from the SE. The water temp is about average for this time of year, nothing out of the ordinary.
We’ve got a fair old wait on our hands. There’s no real surf worth paddling for a good while. The first glimmer of something happens on the morning of Monday the 15th of September. We get a tiny 3ft from the E, period a short 6 seconds, and the combined energy is weak (56). But the wind is glassy – calm as – so it’s clean. That’s the only positive. It’s surfable but very ordinary. That window closes fast, with the afternoon turning ugly with a strong cross-onshore.
Then we hit a big lull. From Tuesday afternoon right through to Thursday the 25th of September, there’s nothing that’s even close to being safe or fun. The swell is mostly small and weak, and when it does push up, like on Wednesday the 24th with a 6ft from the ESE (399 energy, moderate), the wind is cross-onshore and messy. It’s poor.
The only real standout – and I use that term loosely – is the morning of Tuesday the 15th of September. It’s not about size, it’s about the glassy surface. That 3ft from the E on a reef is pretty clean, even if it’s gutless. For a beginner, it’s manageable, but for everyone else, it’s a leg-stretch at best.
Honestly, the whole run is full of poor surf conditions with moderate to strong cross-onshore winds. For most of the 16 days, the wind is just ruining whatever fetch there is. This is a blank run that feels pretty normal for this spot. The forecasts can change, but right now, I wouldn’t hold my breath.
Signing off, Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sat night. Warm (max 20°C on Sun morning, min 15°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Wed night. Warm (max 20°C on Wed morning, min 14°C on Wed night). Mainly strong winds. | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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) | ESE 7 | ESE 6 | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | ENE 6 | ENE 6 | SE 6 | SE 8 | SE 8 | SE 7 | SE 8 | SE 8 | SE 9 | ESE 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 147 | 123 | 98 | 88 | 60 | 61 | 48 | 49 | 36 | 53 | 41 | 374 | 1114 | 443 | 398 | 794 | 383 | 323 | 527 |
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 | on | glassy | glassy | cross-on | cross-off | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-off |
High Tide | 9:23AM1.66m | 9:23PM1.59m | 10:03AM1.64m | 9:54PM1.43m | 10:45AM1.58m | 10:23PM1.26m | 11:32AM1.51m | 10:52PM1.11m | 12:27PM1.44m | 11:28PM0.96m | 1:37PM1.39m | 00:33AM0.84m | |||||||
Low Tide | 3:09AM0.13m | 3:26PM0.32m | 3:40AM0.16m | 4:10PM0.44m | 4:11AM0.21m | 4:57PM0.57m | 4:42AM0.27m | 5:52PM0.68m | 5:16AM0.34m | 7:07PM0.75m | 5:58AM0.41m | 8:50PM0.75m | |||||||
 |  | |  |  | | | | | | | | | | |  | | | | |
 | — | 5:48 | — | — | 5:47 | — | — | 5:46 | — | — | 5:43 | — | — | 5:43 | — | — | 5:41 | — | — |
 | — | — | 5:38 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — |
mm | 5 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 18 | 20 | 19 | 18 | 19 | 19 | 17 | 20 | 20 | 17 | 20 | 19 | 17 | 17 | 18 | 17 | 19 | 19 | 17 |
Feels °C | 16 | 17 | 15 | 16 | 17 | 18 | 17 | 18 | 18 | 15 | 17 | 13 | 9 | 11 | 12 | 10 | 15 | 16 | 17 |
Swell 1 Height (m) Direction Period (s) | SE 7 | E 13 | E 13 | E 13 | E 6 | E 6 | E 6 | E 6 | E 6 | ENE 6 | ENE 6 | E 13 | E 11 | — | E 16 | — | E 15 | E 14 | ESE 12 |
| kJ | 54 | 3 | 3 | 3 | 60 | 61 | 48 | 49 | 36 | 53 | 41 | 3 | 2 | — | 5 | — | 4 | 4 | 527 |
Swell 2 Height (m) Direction Period (s) | ENE 6 | E 20 | E 20 | E 10 | E 12 | E 12 | NE 8 | E 12 | E 12 | E 11 | E 14 | E 13 | — | NE 11 | E 13 | E 16 | E 15 | E 15 | NE 14 |
| kJ | 34 | 8 | 8 | 2 | 3 | 3 | 2 | 3 | 3 | 3 | 4 | 4 | — | 5 | 3 | 5 | 4 | 4 | 8 |
Swell 3 Height (m) Direction Period (s) | E 14 | — | E 11 | S 19 | E 10 | E 10 | E 12 | E 15 | E 15 | E 15 | E 11 | — | — | — | NE 16 | — | — | — | — |
| kJ | 4 | — | 2 | 7 | 2 | 2 | 3 | 4 | 4 | 4 | 2 | — | — | — | 10 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 6 | ESE 6 | E 6 | — | — | — | — | NE 3 | NW 3 | — | SE 6 | SE 8 | SE 8 | SE 7 | SE 8 | SE 8 | SE 9 | — |
| kJ | 147 | 123 | 98 | 88 | — | — | — | — | 2 | 1 | — | 374 | 1114 | 443 | 398 | 794 | 383 | 323 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 47 | 47 | 13 | 1 | 13 | 0 | 0 | 911 | 0 | 47 | 1475 | 981 | 152 | 473 | 152 | 13 | 13 | 0 |
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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