Surf Forecasts:
The groyne surf forecast from 14 Aug 2026:
- Best quality surf: Friday 21 Aug, 1AM (local time) - 3.5ft (1.0m), 7s period, ENE swell with glassy winds.
- Most powerful swell: Monday 17 Aug, 10PM (local time) - 7.5ft (2.3m), 7s period, ESE swell with 560 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 1AM (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 Friday (Aug 21) at 1AM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.6m 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 2.3m 7s and forecast to arrive on Monday (Aug 17) 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 2s period and expected on Thursday (Aug 20) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 21st Aug) | 3.5ft (1.0m) 7s |
| Best Surf | 1AM (Fri 21st Aug) | 3.5ft (1.0m) 7s |
| Most Powerful | 10PM (Mon 17th Aug) | 7.5ft (2.3m) 7s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on the cards for The Groyne over the next couple of weeks. I’ll be straight with you, it’s not looking like a classic stretch. We’ve got a long, frustrating run of poor surf conditions right through until the 20th of August, with a lot of lumpy, cross-onshore chop and moderate to fresh breezes. The swell energy is weak for most of that period (61) with very ordinary short-period windswell, so you’re really just battling the wind for nothing. The water temp is sitting at 68°F, which is a bit colder than normal for this time of year – that’s notable, so don’t leave the wetsuit at home.
The first real glimmer of hope comes on Friday the 21st of August morning. The wind goes glassy, dead calm, and we get a small 3 ft swell from the ENE with a short period of 7 seconds, and energy reading (136). It’s surfable but very ordinary, so nothing to write home about.
The only standout in this whole 16-day window is Saturday the 22nd of August morning. We’ve got a clean, cross-offshore breeze from the NW, and a 3 ft swell from the ENE, still a short 7-second period but the conditions will be smooth. Energy is low (102), so it’s a small-wave board morning. The Groyne is a reef setup, and with a short-period swell like this, it won’t have much push, but a clean session is better than none. The downside is that crowds are sometimes an issue here, so get in early. For beginners, this is fine – it’s small and clean.
After that, it’s straight back into poor form. The rest of the run from the 23rd right through to the 29th of August is all cross-onshore rubbish, plenty of rain showers, and swell energy dropping to as low as 20. The wind stays strong and lumpy, so you’re better off doing something else. The period on the 28th stretches out to 12 seconds, but with only 1 ft swell, it’s just not enough to bother with at a reef break.
So, the honest call: Saturday the 22nd of August morning is the pick, and that’s a small, clean wave for the patient ones. The rest is a write-off.
Rusty
Short Range ForecastModerate rain (total 16mm), heaviest on Sun night. Very mild (max 18°C on Fri afternoon, min 15°C on Fri night). Mainly fresh winds. | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Wed night. Very mild (max 19°C on Tue morning, min 15°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Fri 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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 5 | SE 6 | SE 6 | SE 5 | SE 6 | SE 7 | SE 6 | ESE 6 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 7 | SE 11 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 30 | 77 | 83 | 90 | 196 | 308 | 177 | 170 | 462 | 498 | 509 | 495 | 481 | 336 | 285 | 194 | 167 | 147 | 140 | 117 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-on | on | glassy |
High Tide | 9:24PM1.85m | 9:48AM1.52m | 10:01PM1.70m | 10:32AM1.51m | 10:36PM1.53m | 11:17AM1.48m | 11:10PM1.35m | 12:08PM1.43m | 11:44PM1.17m | 1:08PM1.38m | 00:23AM1.02m | 2:20PM1.36m | 1:27AM0.90m | |||||||
Low Tide | 3:49AM0.16m | 3:47PM0.24m | 4:24AM0.20m | 4:33PM0.36m | 4:58AM0.25m | 5:22PM0.50m | 5:33AM0.30m | 6:19PM0.63m | 6:10AM0.36m | 7:32PM0.72m | 6:55AM0.41m | 9:08PM0.75m | ||||||||
 |  | |  |  | | | | | |  | | | | | | | | | | |
 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — |
 | 5:25 | — | — | 5:25 | — | — | 5:27 | — | — | 5:27 | — | — | 5:27 | — | — | 5:28 | — | — | 5:28 | — |
mm | — | — | — | 1 | 6 | — | — | 8 | 1 | 1 | — | 1 | — | 1 | 1 | 2 | 6 | 1 | — | — |
Temp °C | 18 | 17 | 18 | 18 | 16 | 18 | 18 | 17 | 18 | 18 | 18 | 19 | 18 | 17 | 18 | 17 | 16 | 19 | 18 | 17 |
Feels °C | 14 | 15 | 14 | 13 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 14 | 13 | 14 | 16 | 15 | 15 | 17 | 16 | 17 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 14 | ENE 9 | E 10 | — | SE 12 | ESE 13 | ESE 12 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 26 | 25 | 26 | 27 | 16 | 17 | 16 | 17 | 4 | 29 | 46 | — | 35 | 34 | 77 | 155 | 167 | 147 | 140 | 117 |
Swell 2 Height (m) Direction Period (s) | NE 7 | NE 8 | NE 8 | NE 8 | — | E 16 | E 15 | E 15 | — | E 14 | E 13 | — | — | SE 13 | SE 9 | SE 11 | ESE 10 | SE 9 | SE 9 | ESE 8 |
| kJ | 2 | 3 | 3 | 3 | — | 5 | 4 | 4 | — | 4 | 3 | — | — | 82 | 22 | 194 | 127 | 90 | 81 | 44 |
Swell 3 Height (m) Direction Period (s) | NE 9 | — | — | — | E 16 | — | — | S 19 | — | — | — | — | — | — | SE 9 | — | — | E 12 | ESE 11 | ESE 10 |
| kJ | 3 | — | — | — | 5 | — | — | 7 | — | — | — | — | — | — | 13 | — | — | 12 | 25 | 20 |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 6 | SE 6 | SE 5 | SE 6 | SE 7 | SE 6 | ESE 6 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 7 | — | — | SSW 3 | — | — |
| kJ | 30 | 77 | 83 | 90 | 196 | 308 | 177 | 170 | 462 | 498 | 509 | 495 | 481 | 336 | 285 | — | — | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 157 | 144 | 157 | 157 | 47 | 157 | 47 | 47 | 157 | 157 | 47 | 47 | 47 | 13 | 13 | 13 | 1 | 1 | 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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