Surf Forecasts:
The groyne surf forecast from 18 Aug 2026:
- Best quality surf: Saturday 22 Aug, 1AM (local time) - 3.5ft (1.1m), 7s period, E swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 10AM (local time) - 6ft (1.9m), 8s period, ESE swell with 395 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 1AM (local time) - 3.5ft (1.1m), 7s 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 Saturday (Aug 22) at 1AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.1m and 14s. 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 1.9m 8s and forecast to arrive on Thursday (Aug 20) at 10AM. 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 5s period and expected on Wednesday (Aug 26) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 22nd Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 1AM (Sat 22nd Aug) | 3.5ft (1.1m) 7s |
| Most Powerful | 10AM (Thu 20th Aug) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for The Groyne.
Honestly, it's a bit of a flat spell for the next 16 days. We've got a long stretch of poor surf conditions, with only a few windows where it gets to "surfable". The best advice is to keep your expectations low and pick your moments carefully.
The real standout, if you can call it that, is Saturday morning, August 22nd. We’ll see a clean 3.6ft swell from the east, and the wind will be glassy. That’s a rare treat, so if you can get out then, do it. The water is sitting at 67.5°, which is a bit colder than normal for this time of year, so don't forget a good steamer.
Sunday morning, August 23rd, offers a similar story with another 3.6ft east-northeast swell and glassy conditions. It’s the only other real window of clean surf. The combined energy is weak, around 134, so don't expect much push.
The surf picks up a little around August 30th with a 6.9ft SE swell, but it’s a messy, cross-onshore wind, so the quality will be poor. There’s a day on Wednesday, August 26th, with clean offshore winds from the WNW, but the swell is tiny at just 2.3ft.
After that, from September 1st onwards, it's all onshore slop and wind chop. A few bits of long-period energy pop up in the second week, but the wind just ruins it every time. It’s a blank run for the most part, which isn't unusual for this area when the conditions don't line up.
Stay patient.
Short Range ForecastLight rain (total 5mm), mostly falling on Wed night. Very mild (max 19°C on Wed morning, min 16°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat night. Warm (max 20°C on Sun morning, min 16°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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 7 | SE 11 | SE 10 | ESE 8 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | E 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 358 | 341 | 268 | 395 | 294 | 223 | 155 | 126 | 127 | 131 | 138 | 143 | 131 | 110 | 78 | 60 | 104 | 109 | 107 | 78 | 80 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | on | on | cross-on | on | glassy | glassy | on | glassy | glassy | on | glassy | glassy | cross-on | cross-off | cross | cross-on | glassy |
High Tide | 1:08PM1.38m | 00:23AM1.02m | 2:20PM1.36m | 1:27AM0.90m | 3:34PM1.38m | 3:10AM0.84m | 4:35PM1.45m | 4:37AM0.87m | 5:22PM1.53m | 5:34AM0.95m | 6:00PM1.62m | 6:17AM1.05m | 6:35PM1.71m | ||||||||
Low Tide | 7:32PM0.72m | 6:55AM0.41m | 9:08PM0.75m | 7:52AM0.45m | 10:44PM0.69m | 9:00AM0.46m | 11:42PM0.60m | 10:06AM0.44m | 00:18AM0.50m | 11:01AM0.40m | 00:48AM0.40m | 11:48AM0.35m | 1:15AM0.32m | ||||||||
 | |  | | |  | | | |  | | | | |  | | | | | | | |
 | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — |
 | — | 5:28 | — | — | 5:28 | — | — | 5:29 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — |
mm | — | — | 5 | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | 1 |
Temp °C | 19 | 18 | 17 | 19 | 19 | 17 | 19 | 18 | 17 | 19 | 18 | 17 | 20 | 19 | 18 | 20 | 19 | 17 | 22 | 21 | 20 |
Feels °C | 15 | 14 | 16 | 15 | 16 | 15 | 18 | 17 | 17 | 18 | 17 | 17 | 20 | 18 | 18 | 19 | 18 | 17 | 20 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | ESE 11 | ENE 7 | SE 10 | E 7 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | E 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 |
| kJ | 74 | 118 | 192 | 246 | 294 | 223 | 155 | 126 | 127 | 131 | 138 | 143 | 131 | 110 | 78 | 60 | 104 | 109 | 107 | 78 | 80 |
Swell 2 Height (m) Direction Period (s) | — | — | ENE 7 | ESE 9 | — | SE 10 | SE 9 | SSE 8 | E 14 | SE 8 | SE 7 | SE 7 | SE 7 | SE 6 | ENE 9 | NE 7 | SE 10 | S 10 | S 6 | S 5 | NNE 5 |
| kJ | — | — | 84 | 49 | — | 4 | 20 | 24 | 4 | 2 | 2 | 2 | 2 | 2 | 8 | 30 | 4 | 2 | 1 | 1 | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | E 13 | — | — | — | — | — | E 14 | E 12 | E 11 | ESE 10 | E 8 | SSE 7 | ESE 9 | SE 11 | E 8 | — | S 10 | S 10 | — |
| kJ | — | — | 4 | — | — | — | — | — | 4 | 3 | 2 | 9 | 1 | 5 | 8 | 5 | 1 | — | 2 | 2 | — |
Wind waves Height (m) Direction Period (s) | E 7 | SE 11 | SE 10 | ESE 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 4 | WSW 3 |
| kJ | 358 | 341 | 268 | 395 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 28 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 47 | 47 | 1 | 47 | 13 | 13 | 13 | 47 | 0 | 0 | 19 | 0 | 0 | 47 | 0 | 0 | 47 | 0 | 0 | 173 | 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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