The groyne Surf Break

Lat Long: 26.80° S 153.15° E

The groyne Surf Forecast and Surf Report

Issued: 9 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's The groyne sea temperature is
19.7° C
1.2° 

The groyne surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


The groyne surf forecast from 17 Aug 2026:

  • Best quality surf: Friday 21 Aug, 7AM (local time) - 4.5ft (1.3m), 7s period, E swell with cross-offshore winds.
  • Most powerful swell: Tuesday 18 Aug, 7PM (local time) - 7ft (2.2m), 8s period, ESE swell with 525 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 4AM (local time) - 4.5ft (1.3m), 8s 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 21) at 4AM. The primary swell is predicted to be 1.3m and 8s period. 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 7PM. 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 4s period and expected on Tuesday (Aug 25) at 4AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Fri 21st Aug)4.5ft (1.3m) 8s
Best Surf 7AM (Fri 21st Aug)4.5ft (1.3m) 7s
Most Powerful 7PM (Tue 18th Aug)7ft (2.2m) 8s

Table - best surf conditions forecast for The groyne over the next 16 days.


The Lowdown

Alright, let’s set the scene. It’s a pretty flat and average stretch coming up at The groyne. Don't get your hopes up too high for the next couple of weeks.

Water temp is 68°F, which is a bit chillier than the norm for this time of year, so a full suit is a good idea.

From Monday the 17th through Friday the 21st, it’s pretty much a no-go. We’ve got a steady cross-onshore wind out of the ESE messing things up. There’s some swell, around 6ft, but it’s short-period junk. The wave energy is moderate–we're seeing combined readings in the high 300s–but it’s all chop and no shape. It's a fight out there, not a surf.

Saturday the 22nd and Sunday the 23rd are still marginal. The swell drops, but the wind is still not helping. There’s a brief clean window on Saturday morning but the waves are only about 3ft and weak. Energy’s down in the 80s – it just doesn't have any push to it.

The one bright spot in this whole run looks like Monday morning the 24th. The wind goes glassy and we have a clean 3ft wave. It’s small, but it will be the best conditions we've seen. The energy is still weak though, around 113, so don't expect any power. We have a couple of other surfable days on the 25th and 27th with cleaner cross-offshore winds, but they are still very small and ordinary.

Then we hit a dead zone from the 28th to the 30th. We're talking waves under 2ft and energy readings down in the teens. It's completely flat. You’re better off doing something else.

We do see a pulse of swell for Monday the 31st of August and into Tuesday the 1st of September. The size jumps back up–we’re looking at 4ft in the morning and up to 8ft by the afternoon. The swell energy for that Monday afternoon is strong, hitting 629. But, the conditions are going to be rubbish. The wind is onshore and the period is short, so it'll be a big, messy, choppy 8ft. That’s expert-only territory and it won't be any fun. This is a setup that will be firing for the kiteboarders, not for us.

So, to sum it up, it’s a poor outlook. The only standout for a clean surf is that glassy Monday the 24th. It’s small, but it'll be clean. Otherwise, we’re looking at a whole lot of nothing or a whole lot of mess.

Rusty.

Short Range Forecast

Heavy rain (total 22mm), heaviest during Tue morning. Very mild (max 19°C on Wed morning, min 15°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 20°C on Sat morning, min 16°C on Thu night). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
ESE
7
1.8
ESE
8
1.9
ESE
8
2
ESE
7
1.3
ENE
7
1
SE
8
1.6
ESE
8
1.1
SE
9
1.4
E
8
1.3
E
8
1.2
E
7
1.1
E
7
1
E
7
0.9
E
7
1.1
E
9
1.1
E
8
1.1
E
8
1
ENE
8
1.1
ENE
7
Wave Graph
Metric surfscale
Energy kJ
428
375
397
415
166
113
361
176
233
187
155
126
103
83
190
169
153
123
125
Wind (km/h)
25
ESE
25
ESE
25
SE
20
SE
20
SSE
15
SE
15
S
15
SSE
15
ESE
5
ESE
5
SSE
10
ENE
10
N
5
N
20
NE
15
NW
10
SSE
15
ESE
5
NW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
on
on
cross-on
cross-on
cross
cross
cross-on
cross-off
cross
cross-on
cross-off
High Tide
11:10PM1.35m
12:08PM1.43m
11:44PM1.17m
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
Low Tide
5:33AM0.30m
6:19PM0.63m
6:10AM0.36m
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
rain showers
rain showers
rain showers
rain showers
clear
rain showers
rain showers
rain showers
rain showers
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:13
6:13
6:11
6:11
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:27
5:28
5:28
5:29
5:29
5:30
 mm
1
6
1
7
1
2
3
1
Temp °C
18
18
18
17
19
18
17
19
19
18
19
19
17
20
19
18
20
19
18
Feels °C
14
14
13
14
16
15
16
17
16
17
18
18
16
18
16
16
19
18
19
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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