The groyne Surf Break

Lat Long: 26.80° S 153.15° E

The groyne Surf Forecast and Surf Report

Issued: 3 pm 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's The groyne sea temperature is
19.8° 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 15 Aug 2026:

  • Best quality surf: Friday 21 Aug, 4AM (local time) - 4.5ft (1.4m), 8s period, E swell with glassy winds.
  • Most powerful swell: Tuesday 18 Aug, 1AM (local time) - 7ft (2.2m), 8s period, ESE swell with 540 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 4AM (local time) - 4.5ft (1.4m), 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 1.4m and 8s period. 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 2.2m 8s and forecast to arrive on Tuesday (Aug 18) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Thursday (Aug 20) at 10AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Fri 21st Aug)4.5ft (1.4m) 8s
Best Surf 4AM (Fri 21st Aug)4.5ft (1.4m) 8s
Most Powerful 1AM (Tue 18th Aug)7ft (2.2m) 8s

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


The Lowdown

Alright, Rusty here. Let’s have a look at what The Groyne has in store for us. It’s a bit of a mixed bag, and honestly, we’re in for a pretty rough run of surf over the next week or so. The good news is there’s a light at the end of the tunnel, but we’ve gotta wait for it.

The pattern is mostly onshore and lumpy, with winds blowing cross or cross-on from the SE or SSE for the bulk of the first week. Swell energy is moderate at times, jumping into the 400s and even 500s (combined energy around 186 to 579) but it’s all chopped up by the wind. The water temp is sitting around 68°, which is a bit colder than normal for this time of year. Not a great start.

Saturday the 15th and Sunday the 16th are write-offs. Winds are fresh and cross-onshore, swell around 5ft to 6ft from the SE with a short, weak period of 6 seconds. It’s lumpy and choppy – not worth paddling out.

Monday the 17th and Tuesday the 18th see a bump in size up to 7ft, still from the ESE with a period of 7 to 8 seconds, but winds remain cross-onshore and fresh. The combined energy is solid (up to 482) but it’s poor surf conditions. Too messy and blown out.

Wednesday the 19th and Thursday the 20th ease off a little, dropping to 6ft and then 4ft, but winds are still cross-onshore. Thursday afternoon lightens up to a light breeze, but it’s still choppy.

Here’s where it gets interesting. Friday morning the 21st – we’ve got a window. The wind goes glassy out of the south at just 3 mph, and we’ve got 5ft of swell from the east with an 8-second period. Combined energy is moderate at 253. This is the standout moment in the entire 16-day outlook. The water’s clean, the surf is rideable, and for a reef break like The Groyne that’s fairly consistent but can get crowded, this is your session. It’s the best on offer, and I’d be on it early. Friday afternoon the wind swings NE and brings back the chop, so it’s a short window.

Saturday the 22nd offers a glimmer with a morning cross-off breeze from the NNW, dropping the swell to 4ft. It’s clean but ordinary – surfable if you’re keen, but nothing special. The rest of the day goes cross-shore and messy.

From Sunday the 23rd through the rest of the month, it’s pretty grim. Swell drops under 3ft, winds mostly onshore or cross, and by late August we get a few pulses of longer-period swell (up to 14 seconds around the 28th and 29th) but the wind ruins it again with cross-onshore conditions. The energy picks up to 387 on the 29th afternoon, but it’s choppy and lumpy.

So the call is simple: Friday the 21st morning at The Groyne is your best shot. Glassy, clean, chest-high waves from the east. The rest is a waiting game.

Rusty.

Short Range Forecast

Heavy rain (total 20mm), heaviest during Sun night. Very mild (max 19°C on Sun morning, min 15°C on Sat night). Mainly fresh winds.

Days 5-7 Weather Summary

Heavy rain (total 21mm), heaviest during Wed afternoon. Very mild (max 19°C on Fri morning, min 15°C on Tue night). Wind will be generally light.

Sat
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
PM
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
0
0
0
0
0
0
0
0
0
0
1
2
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)
1.6
SE
6
1.7
SE
6
1.7
SE
6
1.6
SE
6
1.7
ESE
6
2.1
ESE
7
2
ESE
7
2.2
ESE
8
2.1
ESE
7
2
ESE
8
1.7
ESE
7
1.7
E
7
1.7
E
8
1.2
ENE
7
1.1
ENE
7
0.9
SE
9
1.4
E
8
1.4
E
8
1.4
E
8
1.4
ENE
8
Wave Graph
Metric surfscale
Energy kJ
155
205
223
171
216
449
417
540
482
438
319
315
323
128
118
125
258
253
251
215
Wind (km/h)
30
SE
25
SSE
30
SSE
30
SSE
25
SE
25
SE
30
SE
25
ESE
25
SE
25
SE
20
SE
25
ESE
25
ESE
15
SE
15
SSE
10
SE
10
ESE
5
S
15
NE
15
NNW
Wind State
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
glassy
cross-on
cross-off
High Tide
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
2:20PM1.36m
1:27AM0.90m
3:34PM1.38m
3:10AM0.84m
Low Tide
4:24AM0.20m
4:33PM0.36m
4:58AM0.25m
5:22PM0.50m
5:33AM0.30m
6:19PM0.63m
6:10AM0.36m
7:32PM0.72m
6:55AM0.41m
9:08PM0.75m
7:52AM0.45m
10:44PM0.69m
rain showers
rain showers
rain showers
clear
rain showers
cloud
rain showers
rain showers
rain showers
rain showers
clear
rain showers
rain showers
rain showers
rain showers
rain showers
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:15
6:13
6:13
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:25
5:27
5:27
5:27
5:28
5:28
5:29
 mm
1
8
2
4
3
1
1
2
4
7
5
2
1
Temp °C
18
17
19
19
18
18
17
18
19
18
18
18
18
17
18
18
17
19
19
17
Feels °C
13
13
13
14
12
13
12
13
14
13
14
14
15
15
16
17
16
18
17
16
  • Map Icons:
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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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