
Surf Forecasts:
The groyne surf forecast from 11 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 1PM (local time) - 2ft (0.6m), 9s period, E swell with cross-offshore winds.
- Most powerful swell: Tuesday 18 Aug, 7AM (local time) - 7ft (2.2m), 8s period, ESE swell with 634 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 1PM (local time) - 2ft (0.6m), 9s 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 (Aug 11) at 1PM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.6m and 6s. 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 2.2m 8s and forecast to arrive on Tuesday (Aug 18) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Thursday (Aug 13) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Tue 11th Aug) | 2ft (0.6m) 9s |
| Best Surf | 1PM (Tue 11th Aug) | 2ft (0.6m) 9s |
| Most Powerful | 7AM (Tue 18th Aug) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ll be straight with you – this isn’t one of those weeks where you’re itching to get the board out. The groyne is the only spot in the mix, and while there’s swell on the cards, the conditions are going to fight you almost every step of the way. The water’s sitting at 68°, which is a bit colder than normal for this time of year, so you’ll want a decent spring suit.
We start off Tuesday, August 11th, with a small 2ft easterly swell, period of 9 seconds, and a moderate southwesterly cross-offshore breeze. The energy’s weak (111), and the call is poor surf. Tuesday afternoon drops to 2ft, and while it’s surfable, it’s very ordinary. Wednesday morning, August 12th, brings a glassy session – 2ft, 9 seconds, no wind, and clean conditions. Energy’s low (83), but that glassy surface is a rare treat. But it’s small, so don’t expect much push.
From Wednesday afternoon onward, it’s a slow grind. The swell stays tiny through Thursday, barely 2ft, with cross-off and onshore winds messing it up. Friday sees a bump to 4ft, but the period drops to a terrible 5 seconds – that’s pure wind chop. The wind’s cross-onshore, and the energy’s still weak (109). The weekend gets lumpy: Saturday, August 15th, has 4ft to 5ft of short-period slop, with fresh southeasterly winds. By Saturday afternoon, the swell hits 5ft, but it’s a 6-second period, cross-onshore, and lumpy (181 energy). Sunday follows the same pattern: 4ft to 5ft, messy, and rain showers.
The swell builds into the new week. Monday, August 17th, pushes 6ft to 6ft from the ESE, period creeping up to 7 seconds, but the wind is cross-onshore and choppy. Energy’s moderate now (281–324). Tuesday, August 18th, hits 6ft with 8 seconds, but it’s onshore and the break is exposed. The energy ramps up (450), but with the wind on it, it’s not a paddle session. Wednesday, August 19th, sees the biggest swell of the period – 7ft, 7 seconds, ESE, with risk of thunderstorms. That’s pushing into expert-only territory, and the cross-onshore breeze will make it ugly. The energy’s strong (705), but it’s a messy beast.
The rest of the run through to August 26th stays small to moderate, 4ft to 5ft, with periods mostly around 9 seconds. The wind is cross-on or onshore almost every session, and the energy ranges from 136 to 523. There’s no standout day here. The best on offer is that Wednesday morning glassy session – tiny, clean, but you’ll be fighting for a wave. The second week looks more promising for swell size, but the wind never cooperates, so it’s a no-go for quality surfing. If you’re into kiting, that bigger swell with the strong cross-onshore might be worth a look, but for a paddle surfer, this is a blank run.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 23°C on Tue afternoon, min 12°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 23mm), heaviest during Sun night. Very mild (max 18°C on Fri morning, min 14°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
AM | 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 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | ESE 8 |
Wave Graph | |||||||||||||||||||||
76 | 57 | 63 | 61 | 61 | 60 | 41 | 41 | 41 | 41 | 79 | 86 | 77 | 177 | 138 | 119 | 147 | 193 | 233 | 342 | 555 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | glassy | cross-on | cross-off | cross-off | cross-on | cross-off | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 7:19PM1.98m | 7:36AM1.33m | 8:03PM2.00m | 8:21AM1.42m | 8:45PM1.95m | 9:05AM1.49m | 9:24PM1.85m | 9:48AM1.52m | 10:01PM1.70m | 10:32AM1.51m | 10:36PM1.53m | 11:17AM1.48m | 11:10PM1.35m | ||||||||
Low Tide | 12:33PM0.13m | 1:56AM0.19m | 1:25PM0.09m | 2:36AM0.15m | 2:14PM0.09m | 3:13AM0.14m | 3:01PM0.14m | 3:49AM0.16m | 3:47PM0.24m | 4:24AM0.20m | 4:33PM0.36m | 4:58AM0.25m | 5:22PM0.50m | ||||||||
6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
— | 5:23 | — | — | 5:24 | — | — | 5:24 | — | — | 5:25 | — | — | 5:25 | — | — | 5:27 | — | — | 5:27 | — | |
mm | — | — | — | — | — | 1 | — | — | — | — | — | 1 | 1 | 1 | 8 | 4 | 2 | 6 | 4 | 4 | 17 |
Temp °C | 22 | 23 | 19 | 21 | 19 | 16 | 19 | 18 | 17 | 18 | 18 | 17 | 18 | 18 | 16 | 17 | 17 | 16 | 17 | 17 | 17 |
Feels °C | 19 | 20 | 15 | 18 | 16 | 10 | 14 | 13 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 13 | 13 | 11 | 13 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 10 | E 8 | E 8 | E 14 | ENE 9 | — |
76 | 57 | 63 | 61 | 61 | 60 | 41 | 41 | 41 | 41 | 26 | 25 | 26 | 26 | 28 | 31 | 22 | 23 | 4 | 27 | — | |
Swell 2 Height (m) Direction Period (s) | NE 6 | NE 6 | NNE 7 | NE 7 | S 10 | NE 6 | NE 7 | NE 7 | SSE 7 | NE 7 | NE 7 | NE 8 | NE 8 | NE 9 | — | E 16 | E 15 | E 15 | E 14 | NE 8 | — |
31 | 27 | 29 | 15 | 8 | 9 | 8 | 7 | 4 | 2 | 2 | 3 | 3 | 3 | — | 5 | 4 | 4 | 4 | 2 | — | |
Swell 3 Height (m) Direction Period (s) | E 12 | — | S 10 | E 11 | NE 11 | E 11 | NE 10 | S 6 | NE 7 | NE 9 | E 9 | — | — | — | — | — | — | — | — | E 13 | — |
3 | — | 2 | 2 | 5 | 2 | 4 | 1 | 7 | 3 | 2 | — | — | — | — | — | — | — | — | 4 | — | |
Wind waves Height (m) Direction Period (s) | SW 3 | W 3 | WSW 2 | — | NE 3 | SSW 4 | SW 3 | SE 3 | SE 3 | SSE 5 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | ESE 8 |
5 | 1 | 1 | — | 8 | 17 | 6 | 2 | 3 | 20 | 79 | 86 | 77 | 177 | 138 | 119 | 147 | 193 | 233 | 342 | 555 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 0 | 19 | 1 | 15 | 47 | 0 | 47 | 262 | 142 | 197 | 473 | 47 | 157 | 47 | 47 | 47 | 47 | 47 |
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.











