Surf Forecasts:
The groyne surf forecast from 13 Aug 2026:
- Best quality surf: Friday 14 Aug, 7AM (local time) - 1.5ft (0.5m), 9s period, E swell with cross-offshore winds.
- Most powerful swell: Tuesday 18 Aug, 7AM (local time) - 8ft (2.4m), 8s period, ESE swell with 727 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 7AM (local time) - 1.5ft (0.5m), 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 Friday (Aug 14) at 7AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.2m and 9s. Another secondary swell of 0.6m and 4s is also forecast. 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 2.4m 8s and forecast to arrive on Tuesday (Aug 18) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 14th Aug) | 1.5ft (0.5m) 9s |
| Best Surf | 7AM (Fri 14th Aug) | 1.5ft (0.5m) 9s |
| Most Powerful | 7AM (Tue 18th Aug) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
Alright, Rusty here again, this time in feet and miles per hour.
Let’s look at The Groyne over the next couple of weeks. It’s a reef break exposed to the swell, but the direction it loves – SE – just isn’t lining up.
Water temp is about 68°, which is a bit cooler than usual for the season – maybe a degree Fahrenheit under, nothing too wild.
From Thursday the 13th through the first week, it’s a flat spell. Swell is tiny, around 2 to 3 feet, from the east or southeast, with periods under 8 seconds – short-period, weak stuff. Winds are cross or cross-onshore, 10 to 19 mph, so the surface is choppy and lumpy. The wave energy is low, under 100, barely a ripple. No good surf here at all.
By Sunday the 16th and Monday the 17th, we get some size – 6 to 8 feet – and the energy jumps into the moderate to strong range. But the wind is still onshore or cross-onshore and gusty, so it’s messy. The period stays short under 8 seconds, so it’s lumpy and powerful, not clean. Honestly, this is more for kite surfing than paddle surfing.
The real highlight hits on Saturday morning the 22nd of August. Glassy conditions – dead calm wind – with a 4-foot east swell running at 8 seconds. The energy is moderate (220) and the water is described as clean. Offshore wind direction is NW, which is perfect for this spot. That’s your best window.
Sunday morning the 23rd is also solid. Light cross-off wind, 4 feet of east swell with a 9-second period, and clean conditions. Crowds are sometimes a factor here, so expect a few others in the water but nothing heavy.
After that, from Monday the 24th onward, the swell drops fast. By the end of the forecast period, we’re back to 2 feet or less and weak. Not worth the paddle.
Bottom line: Saturday the 22nd is your day. Glassy, 4 feet, clean. Sunday the 23rd is a runner-up. The rest of the 16-day outlook is pretty grim for good waves.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Sat night. Warm (max 20°C on Thu afternoon, min 14°C on Thu night). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 43mm), heaviest during Tue morning. Very mild (max 19°C on Mon morning, min 15°C on Tue night). Mainly fresh winds. | |||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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 | SE 6 | SE 5 | SE 6 | SE 5 | SE 6 | SE 6 | SE 6 | ESE 6 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | ENE 8 | E 8 |
Wave Graph | ||||||||||||||||||||
41 | 41 | 26 | 31 | 62 | 69 | 58 | 88 | 231 | 196 | 277 | 522 | 607 | 636 | 669 | 497 | 578 | 201 | 212 | 246 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross |
High Tide | 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 | 12:08PM1.43m | 11:44PM1.17m | 1:08PM1.38m | 00:23AM1.02m | |||||||
Low Tide | 3:13AM0.14m | 3:01PM0.14m | 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 | ||||||||
— | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | |
5:24 | — | — | 5:25 | — | — | 5:25 | — | — | 5:27 | — | — | 5:27 | — | — | 5:27 | — | — | 5:28 | — | |
mm | — | — | — | — | — | 1 | 2 | 10 | — | 2 | 7 | 2 | 1 | 10 | 7 | 5 | 7 | 2 | 1 | 4 |
Temp °C | 20 | 16 | 18 | 18 | 17 | 18 | 18 | 16 | 18 | 18 | 18 | 19 | 18 | 17 | 17 | 17 | 17 | 18 | 18 | 16 |
Feels °C | 16 | 14 | 15 | 15 | 15 | 14 | 14 | 12 | 13 | 14 | 12 | 13 | 12 | 13 | 13 | 12 | 13 | 15 | 15 | 13 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 8 | E 14 | ENE 9 | E 14 | E 13 | — | — | E 8 | E 8 | ENE 8 | E 8 |
41 | 41 | 26 | 26 | 26 | 26 | 27 | 16 | 18 | 11 | 4 | 29 | 4 | 3 | — | — | 418 | 201 | 212 | 246 | |
Swell 2 Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | SE 10 | NE 8 | NE 8 | NE 8 | — | E 16 | E 10 | — | E 14 | — | — | — | — | ESE 12 | SE 11 | SE 10 | SE 10 |
7 | 2 | 2 | 4 | 3 | 3 | 3 | — | 5 | 17 | — | 4 | — | — | — | — | 15 | 31 | 27 | 24 | |
Swell 3 Height (m) Direction Period (s) | SE 7 | SSE 8 | SE 9 | NE 7 | — | — | — | — | — | E 15 | — | — | — | — | — | — | — | — | SE 10 | ESE 12 |
2 | 7 | 3 | 2 | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — | 51 | 14 | |
Wind waves Height (m) Direction Period (s) | S 3 | SE 4 | SE 5 | SE 6 | SE 5 | SE 6 | SE 5 | SE 6 | SE 6 | SE 6 | ESE 6 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | — |
1 | 6 | 19 | 31 | 62 | 69 | 58 | 88 | 231 | 196 | 277 | 522 | 607 | 636 | 669 | 497 | 578 | 138 | 101 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 47 | 15 | 30 | 157 | 141 | 157 | 157 | 152 | 157 | 47 | 47 | 210 | 157 | 47 | 47 | 157 | 47 | 13 | 47 | 1 |
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.











