Surf Forecasts:
The groyne surf forecast from 23 Aug 2026:
- Best quality surf: Sunday 23 Aug, 10PM (local time) - 3ft (0.9m), 7s period, ENE swell with cross-offshore winds.
- Most powerful swell: Sunday 30 Aug, 1PM (local time) - 3.5ft (1.1m), 9s period, E swell with 201 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 10PM (local time) - 3ft (0.9m), 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 Sunday (Aug 23) at 10PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.1m and 9s. 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 1.1m 9s and forecast to arrive on Sunday (Aug 30) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 8s period and expected on Thursday (Aug 27) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 23rd Aug) | 3ft (0.9m) 7s |
| Best Surf | 10PM (Sun 23rd Aug) | 3ft (0.9m) 7s |
| Most Powerful | 1PM (Sun 30th Aug) | 3.5ft (1.1m) 9s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
G’day, this is Rusty. Let’s be real – The Groyne is not showing much love over the next 16 days. It’s a reef break, facing east, and it needs a west wind to clean up, but we’re not seeing that line up often. Water temp is 68°F, about normal for the season.
The whole thing starts Sunday, August 23rd, and it’s rough. That afternoon you’ve got a 3ft ENE swell at 8 seconds, but a cross-on ESE breeze at 15 mph stirs it up. The combined energy is weak at 100. Monday the 24th stays poor – 3ft ENE swell at 7 seconds, light SE wind, still cross-on, energy at 118. No dice.
Tuesday the 25th of August is the first real highlight. The morning is glassy, with a light NE breeze at 3 mph, and the swell is 3ft from the ENE at 8 seconds. Energy is 119, still weak, but that glassy surface makes it clean. It’s rideable, just ordinary. The afternoon gets messy again. Wednesday the 26th morning has another glassy window with calm conditions and a 4ft ENE swell at 7 seconds (energy 127), but again, just ordinary. That’s about as good as week one gets.
From Thursday the 27th, the wind cranks up. Moderate cross-onshore winds up to 16 mph mess everything up. The swell is 3ft to 4ft from the east, periods 7-8 seconds, energy peaks at 230 on Thursday afternoon, but it’s all wind-chop. Friday the 28th and Saturday the 29th are the same story. Energy is between 145 and 184, but the conditions are poor.
Sunday the 30th of August has a slight bump in period – 3ft ENE swell at 10 seconds, energy 193 – but it’s still cross-on from the SE at 12 mph. More push, but the wind ruins it. Monday the 31st sees the swell size jump to 5ft from the east at 7 seconds, energy 214, but it’s a short-period, choppy mess. Not for beginners, and not enough for experts.
The first week of September is quiet. Tuesday the 1st has a 4ft ENE swell at 7 seconds, cross-on SE wind. Wednesday the 2nd morning is glassy again with a 3ft ENE swell at 8 seconds (energy 156), but the afternoon gets onshore. Thursday the 3rd morning is the next real standout: a cross-off NNW breeze at 9 mph cleans up a 3ft ENE swell at 8 seconds, energy 126. Clean, but small. Friday the 4th and Saturday the 5th are cross-shore north winds, swell drops to 2-3ft from the ENE. Energy falls to 103 on Saturday morning, and by Saturday afternoon it’s only 74 – weak.
The last couple of days, Sunday the 6th and Monday the 7th of September, are tiny. Sunday morning has a 2ft ENE swell at 8 seconds, energy 48. Sunday afternoon goes glassy with a 2ft ENE swell at 7 seconds, energy 66 – surfable but marginal. Monday the 7th has a 1ft east swell at 9 seconds, with a clean offshore WNW breeze at 6 mph in the morning, energy just 34. Clean, but barely a ripple.
So the best of a quiet run is Tuesday the 25th of August morning, Wednesday the 26th morning, or Thursday the 3rd of September morning for glassy or clean conditions on small waves. The Groyne is inconsistent, and most of this is poor or ordinary. When the wind picks up, it looks more like a kite surfing setup than a paddle session. Keep an eye on it, but I wouldn’t plan a trip around it.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon morning. Warm (max 23°C on Wed morning, min 16°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Thu night. Warm (max 21°C on Wed afternoon, min 16°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 8 | ENE 7 | ENE 7 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | E 7 | E 8 | E 8 | E 8 | ENE 8 | E 8 | E 7 | E 8 | E 8 | E 8 | E 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 94 | 89 | 114 | 127 | 134 | 109 | 116 | 123 | 105 | 77 | 71 | 134 | 108 | 172 | 160 | 147 | 177 | 153 | 140 | 119 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-on | on | on | glassy | cross-on | cross-off | glassy | cross-on | cross-off | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:22PM1.53m | 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 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — |
mm | — | — | 1 | — | — | — | — | 1 | 2 | — | — | — | — | 2 | — | — | — | — | — | — |
Temp °C | 19 | 18 | 20 | 20 | 20 | 21 | 20 | 19 | 23 | 21 | 21 | 19 | 19 | 18 | 19 | 19 | 18 | 19 | 19 | 17 |
Feels °C | 18 | 18 | 19 | 19 | 19 | 21 | 19 | 19 | 23 | 21 | 20 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 7 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | E 7 | NE 7 | E 8 | E 8 | ENE 8 | E 8 | NE 8 | E 8 | E 8 | E 8 | E 9 |
| kJ | 94 | 89 | 114 | 127 | 134 | 109 | 116 | 123 | 105 | 76 | 69 | 134 | 108 | 172 | 160 | 35 | 177 | 153 | 140 | 119 |
Swell 2 Height (m) Direction Period (s) | S 7 | NE 9 | E 8 | NE 10 | SSE 6 | ENE 8 | SE 5 | E 16 | NE 8 | NE 7 | E 8 | NE 7 | NE 8 | NE 10 | — | S 10 | S 10 | SE 12 | SE 11 | NE 8 |
| kJ | 1 | 3 | 1 | 4 | 4 | 7 | 1 | 5 | 18 | 77 | 71 | 65 | 77 | 4 | — | 2 | 8 | 6 | 5 | 10 |
Swell 3 Height (m) Direction Period (s) | SSE 7 | — | SE 8 | S 9 | S 10 | SSE 6 | S 10 | E 13 | E 14 | E 14 | E 13 | — | — | — | — | — | SE 15 | S 9 | — | SE 10 |
| kJ | 5 | — | 3 | 2 | 2 | 3 | 7 | 3 | 4 | 4 | 3 | — | — | — | — | — | 9 | 6 | — | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NE 7 | N 4 | — | — | SW 3 | S 3 | SE 5 | SE 5 | — | E 7 | — | — | — | — |
| kJ | — | — | — | — | — | — | 9 | 10 | — | — | 2 | 5 | 45 | 24 | — | 147 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 13 | 0 | 13 | 13 | 47 | 0 | 161 | 0 | 0 | 19 | 1 | 13 | 47 | 46 | 47 | 13 | 13 | 1 | 1 | 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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