Surf Forecasts:
The groyne surf forecast from 23 Aug 2026:
- Best quality surf: Monday 24 Aug, 7AM (local time) - 3.5ft (1.0m), 7s period, ENE swell with glassy winds.
- Most powerful swell: Sunday 30 Aug, 1PM (local time) - 6.5ft (2.0m), 7s period, E swell with 371 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 7AM (local time) - 3.5ft (1.0m), 7s period with ENE 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 Monday (Aug 24) at 7AM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.1m and 11s. 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 2.0m 7s and forecast to arrive on Sunday (Aug 30) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Aug 26) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Mon 24th Aug) | 3.5ft (1.0m) 7s |
| Best Surf | 7AM (Mon 24th Aug) | 3.5ft (1.0m) 7s |
| Most Powerful | 1PM (Sun 30th Aug) | 6.5ft (2.0m) 7s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
Alright, let’s get into it. The name’s Rusty, and I’m looking at the surf coming up for The Groyne. Honestly, it’s a bit of a mixed bag and you’ll need to pick your moments carefully.
The overall pattern is dominated by a persistent onshore or cross-onshore wind from the east and southeast, which is going to mess with the surface for most of the first two weeks. The swell is there, but it’s short-period and wind-affected, so expect bumpy, choppy conditions more often than not.
We kick off Monday the 24th of August with rain and poor surf. That sets the tone for the first few days. The wind is straight onshore from the ESE at 6 mph, with a weak 4 ft swell from the ENE at a short 7-second period. The combined energy is low at 135 (moderate). Not worth paddling out.
Tuesday the 25th morning is the first real window. The wind drops to glassy—calm, zero wind. That’s a major positive. The swell is 3 ft from the east, 8-second period, with combined energy around 145 (moderate). Conditions are described as “surfable waves but very ordinary conditions.” So, it’s small and clean, but nothing exciting. The Groyne is a reef break that’s fairly consistent, and with the glassy conditions, you *could* get a few. Just don’t expect the world. Crowds are possible here sometimes.
Wednesday the 26th morning is another glassy chance. Light rain, but the wind is a light westerly at 3 mph, making it glassy again. Swell is tiny though, 3 ft from the ENE, 8 seconds, combined energy 120 (moderate). Again, “surfable waves but very ordinary conditions.” It’s a early-morning mission for the clean, small stuff.
After that, from Thursday the 27th through to the end of August, it’s pretty much a write-off. The wind picks up, swinging from SSE to ESE and SE, 9 to 16 mph, all cross or cross-onshore. The swell builds from 4 ft up to 7 ft by the 31st, but the period stays short, around 6 to 8 seconds. Combined energy jumps up to 435 (strong) on the 31st morning, but with that onshore wind and short period, it’s going to be a messy, choppy mess. For a beach or reef setup like this, it’s looking more interesting for kite surfing than paddle surfing on those days.
The first week of September doesn’t bring much relief. The wind stays mostly cross-onshore from the SE, with swell around 6 ft to 6 ft, 8 second period, and combined energy between 368 and 422 (strong). The surf is still poor. Wednesday the 2nd and Thursday the 3rd mornings are “marginal” with lighter winds, but the swell is still messy and the tide might be a factor.
Finally, we get a couple of good mornings around the 4th and 5th of September. Friday the 4th morning: clear skies, a light cross-offshore wind from the NNW at 9 mph, and a 3 ft swell from the ENE, 8 seconds. Combined energy 140 (moderate). The condition is “clean.” This is the best on offer in the entire outlook. It’s small, but it’s clean and rideable. Saturday the 5th morning is similar: a light cross-offshore from the SW at 6 mph, 3 ft swell from the ENE, 8 seconds, combined energy 157 (moderate), and clean conditions again.
After that, the swell drops right off into the second week, with tiny 2 ft to 3 ft swells and light winds. Sunday the 8th morning has a clean cross-offshore wind, but the swell is only 2 ft, 8 seconds, combined energy 77 (weak). It’s surfable but very small.
So, the standout window is the morning of Friday the 4th of September. The wind is light and offshore, the swell is small but clean, and it’s the most consistent quality you’ll see. The morning of Saturday the 5th is a close second. The water temperature? No specific data here, but it’s about average for the time of year.
That’s the long and short of it. It’s a tough stretch, but if you’re keen, those early mornings in early September are your best bet. Keep an eye on the forecasts, but for now, that’s the call.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Tue night. Warm (max 22°C on Wed afternoon, min 17°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Wed night, min 16°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 | ENE 7 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | E 7 | NE 7 | NE 8 | E 8 | E 8 | E 7 | E 7 | E 8 | E 7 | E 9 | E 8 |
Wave Graph | |||||||||||||||||||
109 | 132 | 121 | 134 | 131 | 134 | 135 | 99 | 69 | 65 | 99 | 100 | 208 | 212 | 124 | 157 | 155 | 215 | 200 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | glassy | glassy | cross-on | cross-off | glassy | cross-on | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:34AM0.95m | 6:00PM1.62m | 6:17AM1.05m | 6:35PM1.71m | 6:54AM1.17m | 7:08PM1.78m | 7:28AM1.28m | 7:39PM1.82m | 8:01AM1.38m | 8:11PM1.82m | 8:34AM1.47m | 8:43PM1.79m | |||||||
Low Tide | 00:18AM0.50m | 11:01AM0.40m | 00:48AM0.40m | 11:48AM0.35m | 1:15AM0.32m | 12:30PM0.30m | 1:42AM0.25m | 1:09PM0.26m | 2:09AM0.20m | 1:47PM0.24m | 2:37AM0.17m | 2:25PM0.24m | 3:06AM0.15m | ||||||
— | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | |
— | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | |
mm | 4 | 2 | — | — | — | — | 3 | 2 | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 18 | 20 | 20 | 18 | 21 | 20 | 19 | 19 | 22 | 21 | 19 | 19 | 19 | 20 | 19 | 18 | 19 | 19 | 18 |
Feels °C | 18 | 18 | 19 | 18 | 20 | 19 | 19 | 21 | 21 | 18 | 16 | 17 | 17 | 18 | 17 | 17 | 17 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | E 7 | ENE 7 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | E 7 | NE 7 | NE 8 | E 8 | S 7 | NE 8 | NE 8 | NE 7 | SE 12 | SE 11 | SE 12 |
109 | 132 | 121 | 134 | 131 | 134 | 135 | 99 | 69 | 65 | 99 | 100 | 1 | 61 | 36 | 25 | 6 | 5 | 6 | |
Swell 2 Height (m) Direction Period (s) | NE 9 | E 8 | E 8 | S 6 | NE 8 | NE 8 | E 16 | NE 8 | NE 8 | E 8 | E 8 | NE 8 | NE 10 | SSE 8 | SSE 7 | SE 14 | SSE 12 | NE 10 | S 10 |
3 | 1 | 1 | 1 | 11 | 2 | 5 | 17 | 48 | 54 | 86 | 97 | 4 | 12 | 10 | 8 | 14 | 4 | 2 | |
Swell 3 Height (m) Direction Period (s) | — | E 11 | S 9 | S 10 | SSE 6 | — | S 5 | E 14 | E 14 | E 13 | — | — | — | — | S 15 | — | — | — | E 11 |
— | 2 | 2 | 2 | 3 | — | 1 | 4 | 4 | 4 | — | — | — | — | 4 | — | — | — | 2 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NNE 4 | — | — | WSW 2 | SSE 4 | SE 5 | E 8 | E 7 | E 7 | E 8 | E 7 | E 9 | E 8 |
— | — | — | — | — | — | 16 | — | — | 1 | 28 | 51 | 208 | 212 | 124 | 157 | 155 | 215 | 200 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 13 | 13 | 13 | 0 | 0 | 674 | 0 | 0 | 19 | 1 | 13 | 47 | 47 | 13 | 13 | 13 | 13 | 13 | 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.











