Surf Forecasts:
The groyne surf forecast from 20 Aug 2026:
- Best quality surf: Friday 21 Aug, 10AM (local time) - 4ft (1.2m), 7s period, E swell with glassy winds.
- Most powerful swell: Thursday 27 Aug, 4AM (local time) - 6ft (1.9m), 7s period, SSE swell with 304 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 10AM (local time) - 4ft (1.2m), 7s 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 Friday (Aug 21) at 10AM. The primary swell is predicted to be 1.2m and 7s period with a secondary swell of 0.9m and 7s. 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 1.9m 7s and forecast to arrive on Thursday (Aug 27) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 8s period and expected on Wednesday (Aug 26) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Fri 21st Aug) | 4ft (1.2m) 7s |
| Best Surf | 10AM (Fri 21st Aug) | 4ft (1.2m) 7s |
| Most Powerful | 4AM (Thu 27th Aug) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s look at what’s on the cards for The Groyne. It’s a reef setup, exposed to the swell, and you’re gonna need it to line up perfectly for anything worth paddling out for.
Looking at the whole 16-day window, I gotta be straight with you: the good news is thin on the ground. There are long gaps with very little to get excited about. The first real chance to even suggest you grab a board doesn’t come until Thursday morning, 21 August, and even then, it’s a “look don’t jump” scenario. From there, it’s a dry spell right through the first week of September, with the last few days of the forecast showing nothing but poor conditions and tiny waves. The second week is a write-off – forgettable, tiny, and mostly onshore. For a place like this, that’s a tough run.
The standout moment, the one you’d maybe set an alarm for, is Friday morning, 21 August. You’ve got clean conditions with glassy wind straight offshore from the SE at just 3 mph. That wind makes all the difference. The swell is 4 ft from the east, with a period of 7 seconds and moderate energy (254). It’s not a giant day, but that offshore glass will give you the cleanest, most workable waves you’ll see across this whole stretch. It’s an intermediate break, so you’ll have some company – the crowds are listed as “sometimes” there, so expect a few others with the same early alarm. The water temp is 68°, which feels a bit colder than normal for this time of year, so you’ll want a decent wetsuit on.
After that morning window? It goes downhill fast. The rest of the 21st turns onshore. Saturday 22nd and Sunday 23rd have some glassy mornings but the swell is below 3 ft and weak (energy in the 90–108 range) – those are just ankle-snappers. You might get a fun little wave on Tuesday morning, 25 August, with a glassy start and a 3 ft easterly swell (energy 104), but it’s nothing to drive for. The only other moment with potential is Wednesday morning, 26 August, with clean offshore wind from the west at 6 mph, but the swell is still tiny at 3 ft.
Later in the period, on Thursday 27th, a late pulse of 6 ft swell shows up but with a period of just 6 seconds and a messy cross-shore wind. That’s a choppy, short-period mess – not worth a look for a reef break. By the time we hit late August and early September, it’s all onshore breezes and swells dropping back below 3 ft. The last week is particularly grim, with waves barely 1–2 ft and periods that are either too short or too long for this spot to work well. On 3 and 4 September you get a long period (10–11 seconds), but the swell height is tiny – it’s not going to wrap in properly with any power.
If it stays this flat and windy, the only thing that setup might be good for is a kite surfer on a gusty day. There’s just not enough push for a paddle surfer. Keep your eye on that Friday 21st morning, though. That’s your best shot, and it could clean up nicely. The forecasts can shift, so don’t give up completely, but as it stands, you’ve got one window and it’s a small one.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Thu afternoon, min 15°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Wed morning, min 16°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | E 7 | E 8 | E 7 | E 7 | E 7 | ENE 7 | E 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | E 8 | E 8 | E 8 | E 9 | ENE 8 | E 8 | E 8 | E 8 | SSE 6 |
Wave Graph | ||||||||||||||||||||
242 | 222 | 155 | 127 | 100 | 86 | 109 | 123 | 105 | 99 | 76 | 42 | 61 | 88 | 96 | 118 | 127 | 76 | 54 | 202 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | on | cross | glassy | on | glassy | glassy | on | cross | cross-on | on | glassy | glassy | cross-on | cross-off | off | cross-off | cross-off |
High Tide | 1:27AM0.90m | 3:34PM1.38m | 3:10AM0.84m | 4:35PM1.45m | 4:37AM0.87m | 5:22PM1.53m | 5:34AM0.95m | 6:00PM1.62m | 6:17AM1.05m | 6:35PM1.71m | 6:54AM1.17m | 7:08PM1.78m | ||||||||
Low Tide | 9:08PM0.75m | 7:52AM0.45m | 10:44PM0.69m | 9:00AM0.46m | 11:42PM0.60m | 10:06AM0.44m | 00:18AM0.50m | 11:01AM0.40m | 00:48AM0.40m | 11:48AM0.35m | 1:15AM0.32m | 12:30PM0.30m | 1:42AM0.25m | |||||||
— | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | |
5:28 | — | — | 5:29 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 19 | 18 | 17 | 19 | 18 | 18 | 19 | 18 | 18 | 20 | 19 | 18 | 20 | 20 | 18 | 23 | 22 | 16 |
Feels °C | 16 | 16 | 18 | 16 | 16 | 18 | 18 | 17 | 19 | 17 | 18 | 19 | 18 | 19 | 20 | 18 | 17 | 20 | 17 | 12 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | E 8 | E 7 | E 7 | E 7 | ENE 7 | E 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | E 8 | E 8 | E 8 | E 9 | ENE 8 | E 8 | E 8 | E 8 | NE 8 |
53 | 222 | 155 | 127 | 100 | 86 | 109 | 123 | 105 | 99 | 76 | 42 | 61 | 88 | 96 | 118 | 127 | 76 | 54 | 45 | |
Swell 2 Height (m) Direction Period (s) | — | ENE 7 | ENE 7 | SSE 8 | E 14 | SE 7 | SE 7 | SE 7 | SE 7 | S 6 | ENE 9 | NE 7 | NE 7 | NE 8 | NE 7 | S 5 | E 16 | NE 8 | NE 8 | E 7 |
— | 86 | 79 | 24 | 4 | 2 | 2 | 2 | 2 | 1 | 8 | 23 | 22 | 22 | 7 | 1 | 5 | 35 | 46 | 39 | |
Swell 3 Height (m) Direction Period (s) | — | SE 10 | SE 9 | SE 8 | E 14 | E 12 | E 11 | ESE 9 | E 8 | SE 7 | SE 9 | E 12 | NE 10 | S 6 | S 6 | S 10 | SSE 10 | E 15 | E 14 | E 13 |
— | 4 | 20 | 15 | 4 | 3 | 2 | 8 | 1 | 2 | 3 | 3 | 4 | 1 | 1 | 2 | 10 | 4 | 4 | 3 | |
Wind waves Height (m) Direction Period (s) | E 7 | — | — | — | — | — | — | — | — | — | — | — | ESE 2 | — | — | — | N 4 | SW 3 | NE 3 | SSE 6 |
242 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 6 | 1 | 3 | 202 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 47 | 13 | 0 | 19 | 0 | 0 | 47 | 0 | 0 | 47 | 1 | 1 | 13 | 0 | 0 | 669 | 17 | 0 | 1 | 3 |
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.











