Surf Forecasts:
The groyne surf forecast from 11 Sep 2026:
- Best quality surf: Monday 14 Sep, 7AM (local time) - 3.5ft (1.1m), 6s period, ESE swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 10PM (local time) - 10ft (3.0m), 8s period, SE swell with 1,441 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 7AM (local time) - 3.5ft (1.1m), 6s period with ESE 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 Monday (Sep 14) at 7AM. The primary swell is predicted to be 1.1m and 6s period with a secondary swell of 0.9m and 6s. Another secondary swell of 0.1m and 8s 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 3.0m 8s and forecast to arrive on Wednesday (Sep 16) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Sep 16) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Mon 14th Sep) | 3.5ft (1.1m) 6s |
| Best Surf | 7AM (Mon 14th Sep) | 3.5ft (1.1m) 6s |
| Most Powerful | 10PM (Wed 16th Sep) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for The groyne over the next 16 days.
The Lowdown
Right then, let's have a look at what we've got coming up here at The Groyne.
To be honest with you, mate, it's a bit of a rough stretch ahead. The Groyne is a reef setup, fairly consistent, and it loves a SE swell, but for the next week and a half, we're just not getting the conditions to line up. The wind is mostly cross-on or cross from that SE/ESE quarter, and the swell is generally short-period windswell, around 6 to 8 seconds. It’s going to be choppy and messy for a good while.
We kick off on Friday the 11th with rain showers and a 6ft to 5ft ESE swell, but it’s all cross-on at 15 mph. That produces a moderate wave energy of 364, but the surf is just poor. That run of poor surf keeps rolling right through the weekend and into the start of the following week. The swell hangs around the 5ft mark on Saturday and Sunday, but those onshore winds just kill it. We’ll have a few days of really tiny surf in the middle of the week, with bumpy conditions.
Now, the first time things might get interesting is on Wednesday the 16th. We see a jump in swell in the afternoon, hitting 8ft from the SE, and the wave energy climbs into that strong range at 613. But, and it’s a big but, the wind is a fresh 22 mph cross-onshore, making it lumpy and poor. That’s expert level size with awful wind – not one for the average punter.
Thursday the 17th is more of the same story: a solid 8ft SE swell in the afternoon (732 energy), but with a strong 25 mph cross-onshore making it a mess. This setup looks more interesting for kite surfing than paddle surfing, frankly.
We finally get a glimmer of hope towards the end of the run. On Friday the 18th, the swell drops back a bit to 7ft from the SE, and the wind eases. The morning is still a bit cross, but the wave energy is strong at 623. It’s flagged as marginal, so with a bit of luck you might find a peak. Then, the highlight of the whole 16 days looks to be Saturday the 19th of September. The swell drops to a more manageable 5ft from the ESE, but the period stretches out to a nice 10 seconds. The wind is a gentle cross-shore at 9 mph, which should keep things relatively clean. The wave energy is still solid at 532. It’s only rated as marginal, but in this run, that’s the standout. The morning session that day is your best bet for a clean-ish wave at The Groyne, though crowds are possible at this spot.
After that, the swell fades away again into Sunday and Monday the 21st with tiny, weak surf. There’s a brief spike in swell on Wednesday the 23rd with a 7ft SE, but it’s back to messy conditions. The rest of the period into the 26th is small and choppy.
So, keep your eyes on that Saturday the 19th. It’s not perfect, but it’s the pick of a tough bunch.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Sun morning. Warm (max 20°C on Sun morning, min 16°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Tue morning, min 13°C on Wed night). Winds increasing (calm on Mon night, strong winds from the SSE by Wed afternoon). | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 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) | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 7 | ESE 7 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | ENE 6 | SE 7 | SE 9 | SE 8 | SE 8 | SE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 329 | 234 | 222 | 160 | 158 | 163 | 125 | 107 | 82 | 60 | 32 | 45 | 45 | 35 | 27 | 43 | 606 | 1109 | 517 | 717 | 694 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | on | glassy | cross-on | cross-on | cross-off | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 8:17PM1.84m | 8:43AM1.63m | 8:51PM1.73m | 9:23AM1.66m | 9:23PM1.59m | 10:03AM1.64m | 9:54PM1.43m | 10:45AM1.58m | 10:23PM1.26m | 11:32AM1.51m | 10:52PM1.11m | 12:27PM1.44m | 11:28PM0.96m | ||||||||
Low Tide | 2:00PM0.16m | 2:38AM0.11m | 2:43PM0.23m | 3:09AM0.13m | 3:26PM0.32m | 3:40AM0.16m | 4:10PM0.44m | 4:11AM0.21m | 4:57PM0.57m | 4:42AM0.27m | 5:52PM0.68m | 5:16AM0.34m | 7:07PM0.75m | ||||||||
 | |  | |  | | | |  | | |  | | | | |  | | | | | |
 | 5:50 | — | — | 5:48 | — | — | 5:48 | — | — | 5:47 | — | — | 5:46 | — | — | 5:43 | — | — | 5:43 | — | — |
 | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — |
mm | 2 | 2 | 1 | 2 | — | 1 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 19 | 19 | 18 | 19 | 19 | 18 | 20 | 19 | 18 | 19 | 19 | 17 | 21 | 20 | 17 | 21 | 18 | 17 | 18 | 18 | 16 |
Feels °C | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 15 | 16 | 18 | 18 | 17 | 19 | 17 | 14 | 17 | 11 | 9 | 11 | 10 | 9 |
Swell 1 Height (m) Direction Period (s) | E 14 | E 14 | E 14 | E 15 | E 14 | ESE 6 | E 13 | E 13 | NE 8 | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | ENE 6 | E 13 | NE 13 | E 13 | E 16 | NE 16 |
| kJ | 4 | 4 | 4 | 4 | 4 | 108 | 3 | 3 | 3 | 60 | 32 | 45 | 45 | 35 | 27 | 43 | 3 | 7 | 4 | 5 | 10 |
Swell 2 Height (m) Direction Period (s) | SE 22 | E 14 | NE 16 | E 12 | NE 15 | E 14 | NE 8 | NE 8 | E 13 | NE 9 | SE 6 | E 12 | E 12 | E 12 | NE 11 | E 11 | E 13 | — | NE 11 | NE 16 | E 12 |
| kJ | 20 | 4 | 10 | 3 | 8 | 4 | 3 | 3 | 3 | 3 | 24 | 3 | 3 | 3 | 5 | 3 | 4 | — | 5 | 10 | 3 |
Swell 3 Height (m) Direction Period (s) | NE 16 | — | — | E 14 | — | SE 20 | E 20 | E 20 | E 10 | E 12 | NE 8 | SSE 10 | E 15 | E 15 | NE 8 | E 14 | — | — | — | — | — |
| kJ | 11 | — | — | 4 | — | 15 | 8 | 8 | 2 | 3 | 3 | 18 | 4 | 4 | 2 | 4 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 7 | ESE 7 | ESE 6 | ESE 6 | ESE 6 | — | — | — | — | NE 3 | N 4 | NW 3 | SE 7 | SE 9 | SE 8 | SE 8 | SE 8 |
| kJ | 329 | 234 | 222 | 160 | 158 | 163 | 125 | 107 | 82 | — | — | — | — | 2 | 6 | 3 | 606 | 1109 | 517 | 717 | 694 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 47 | 47 | 47 | 47 | 47 | 1 | 47 | 47 | 13 | 1 | 47 | 0 | 0 | 412 | 19 | 46 | 1471 | 152 | 582 | 473 | 152 |
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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