Surf Forecasts:
The groyne surf forecast from 17 Jul 2026:
- Best quality surf: Thursday 23 Jul, 1AM (local time) - 4.5ft (1.3m), 9s period, E swell with glassy winds.
- Most powerful swell: Sunday 19 Jul, 7AM (local time) - 11ft (3.5m), 10s period, SE swell with 2,768 kJ wave energy.
- Next surfable swell (1★+): Thursday 23 Jul, 1AM (local time) - 4.5ft (1.3m), 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 Thursday (Jul 23) at 1AM. The primary swell is predicted to be 1.3m and 9s period with a secondary swell of 0.2m and 9s. 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 3.5m 10s and forecast to arrive on Sunday (Jul 19) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Jul 19) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 23rd Jul) | 4.5ft (1.3m) 9s |
| Best Surf | 1AM (Thu 23rd Jul) | 4.5ft (1.3m) 9s |
| Most Powerful | 7AM (Sun 19th Jul) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
Alright, let’s talk about The Groyne. This reef setup is exposed to the swell, and for the next couple of weeks, it’s a bit of a mixed bag. The water temp is sitting at 69° which is just about average for this time of year, nothing unusual there.
We’ve got a bit of a slow start. The first real window to even consider a paddle is early Saturday morning, the 18th. It won’t be perfect, but we see a clean 7 ft swell from the SE with a 19 mph cross-offshore wind from the SSW. The energy is starting to build, with moderate wave energy (649). It’s marginal, but if you’re keen, it’s the best of the early period.
Saturday afternoon sees the swell jump to 8 ft from the SE with a longer period of 10 seconds, and the energy gets strong (1245). But the wind goes cross-shore from the S at 19 mph, which will make it lumpy. Not ideal for a relaxing session.
The standout period looks like the tail end of the first week and into the second. On Wednesday morning, the 22nd, we have a 6 ft swell from the ESE with a period of 9 seconds. The wind is light cross-shore at 9 mph, and the energy is moderate (1019). It’s still a bit iffy, but that’s the pick of the mid-week.
Now, for the real highlight: jump forward to the morning of Thursday, July 24th. It’s small, only 4 ft from the E, with a 6 mph cross-offshore wind from the S. That clean, light wind will make for some glassy conditions. The energy is weak (210), but for a smaller wave, fun session, you can’t beat it.
The following week sees a slow fade. By Tuesday the 28th, we’re down to 3 ft from the ENE with a glassy, calm morning. The energy is very weak (76), but for longboarders or those just wanting to get wet, it’s clean.
The very end of the window, on Saturday, August 1st, throws one last chance. The afternoon session shows a 6 ft swell from the SE, period 7 seconds, and a glassy, calm wind. The energy is moderate (338), and the conditions are clean. It’s a bit small and short-period, but for a summer session, it could be worth a look.
Overall, the pattern is inconsistent. The best bet is Thursday the 24th morning for a clean, smaller wave, or if you want more size, Saturday the 18th morning with the cross-offshore wind. Expect small, clean surf for the most part. Don’t expect big, powerful groundswell; it’s more of a relaxed, smaller-wave affair.
Rusty.
Short Range ForecastHeavy rain (total 27mm), heaviest during Fri afternoon. Warm (max 20°C on Sat morning, min 15°C on Fri night). Mainly strong winds. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Mon afternoon. Warm (max 20°C on Mon afternoon, min 16°C on Tue night). Winds decreasing (fresh winds from the SE on Mon afternoon, calm by Wed night). | |||||||||||||||||||
Fri 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||
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 7 | SE 8 | SE 8 | SE 10 | SE 11 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | E 10 | ESE 10 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 423 | 710 | 640 | 1234 | 1729 | 2239 | 1484 | 1626 | 1380 | 1441 | 1396 | 1047 | 898 | 552 | 577 | 367 | 268 | 214 | 209 | 199 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | glassy | cross | on | glassy |
High Tide | 10:36PM1.80m | 10:59AM1.37m | 11:19PM1.64m | 11:51AM1.36m | 00:01AM1.47m | 12:48PM1.34m | 00:46AM1.30m | 1:52PM1.34m | 1:35AM1.15m | 3:01PM1.36m | 2:35AM1.04m | 4:06PM1.41m | 3:43AM0.98m | |||||||
Low Tide | 4:05PM0.20m | 5:07AM0.27m | 4:56PM0.31m | 5:49AM0.32m | 5:50PM0.44m | 6:31AM0.36m | 6:50PM0.56m | 7:14AM0.40m | 8:01PM0.66m | 8:01AM0.42m | 9:22PM0.71m | 8:52AM0.43m | 10:42PM0.69m | |||||||
 |  |  |  | |  | | | | |  | | |  |  | |  |  | | | |
 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — |
 | 5:12 | — | — | 5:12 | — | — | 5:13 | — | — | 5:13 | — | — | 5:14 | — | — | 5:14 | — | — | 5:15 | — |
mm | 4 | 3 | — | — | 5 | 3 | 4 | 6 | 2 | 1 | — | — | — | 1 | 2 | — | — | — | — | — |
Temp °C | 18 | 16 | 20 | 19 | 18 | 19 | 19 | 19 | 19 | 20 | 19 | 19 | 19 | 19 | 17 | 18 | 17 | 19 | 18 | 17 |
Feels °C | 13 | 10 | 14 | 13 | 11 | 14 | 15 | 15 | 14 | 16 | 14 | 15 | 16 | 16 | 15 | 17 | 17 | 18 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | — | NE 9 | E 21 | E 20 | SE 11 | ESE 17 | S 23 | — | — | — | — | — | S 12 | E 11 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 |
| kJ | — | 3 | 9 | 8 | 1729 | 29 | 11 | — | — | — | — | — | 3 | 121 | 440 | 367 | 268 | 214 | 209 | 199 |
Swell 2 Height (m) Direction Period (s) | — | — | — | NE 8 | E 18 | — | — | — | — | — | — | — | — | S 10 | S 10 | S 9 | S 9 | SSE 9 | SSE 8 | — |
| kJ | — | — | — | 3 | 7 | — | — | — | — | — | — | — | — | 2 | 2 | 7 | 7 | 8 | 7 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 13 | SE 13 | SE 12 | SE 12 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 6 | 6 | 6 | — |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 8 | SE 8 | SE 10 | SW 4 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | E 10 | ESE 10 | ESE 9 | ESE 9 | — | — | — | — | — |
| kJ | 423 | 710 | 640 | 1234 | 22 | 2239 | 1484 | 1626 | 1380 | 1441 | 1396 | 1047 | 898 | 552 | 577 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 693 | 412 | 856 | 868 | 310 | 830 | 787 | 293 | 389 | 157 | 157 | 47 | 47 | 47 | 13 | 1 | 0 | 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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