Shark Island (Cronulla) Surf Break

Lat Long: 34.06° S 151.16° E

Shark Island (Cronulla) Surf Forecast and Surf Report

Issued: 3 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shark Island (Cronulla) sea temperature is
16.7° C
0.9° 

Shark Island (Cronulla) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Shark Island (Cronulla) surf forecast from 21 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 7AM (local time) - 5ft (1.6m), 8s period, NE swell with cross-offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 10PM (local time) - 7ft (2.2m), 7s period, NE swell with 462 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 4AM (local time) - 4.5ft (1.3m), 8s period with ENE swell.

Best Forecast Surf Conditions for Shark Island (Cronulla) this week:

The surf forecast for Shark Island (Cronulla) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 26) at 4AM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.3m and 8s. Another secondary swell of 0.3m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Shark Island (Cronulla) in the next 16 days are 2.2m 7s and forecast to arrive on Tuesday (Aug 25) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Aug 27) at 4AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Wed 26th Aug)4.5ft (1.3m) 8s
Best Surf 7AM (Wed 26th Aug)5ft (1.6m) 8s
Most Powerful10PM (Tue 25th Aug)7ft (2.2m) 7s

Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.


The Lowdown

G’day, Rusty here, and I’ve got to be straight with you – the next couple of weeks around Shark Island (Cronulla) are a tough watch. This is a reef setup that needs a decent southerly or south-east swell and clean conditions to really fire, and we’re just not getting that combo. The water temp is sitting at 62°, which is a touch below average for this time of year, so you’ll want a solid steamer.

The forecast kicks off on Friday the 21st with a small 3 ft wave from the north-east, but it’s coming with a glassy wind and the combined energy is only moderate (101). It’s surfable, but it’s ordinary. From Saturday morning the 22nd, we hit a flat spell with barely any wave energy – the swell drops to 1 ft and the wind is messy. This dry patch lasts right through to the morning of Sunday the 23rd, where we get a south swell building to 4 ft. The energy ramps up to moderate (257), but the wind is cross-shore from the north-west, so it’s choppy and poor. The onshore winds and crossed-up conditions just keep coming through the 24th, 25th, and into the 26th.

There’s a brief glimmer on Wednesday morning the 26th. We get a clean 4 ft south-west groundswell, with a moderate offshore wind from the south-west, and the energy is solid (204). The period is 8 seconds, so it’s a bit short and fat, but it’s the cleanest we’ll see for a while. It’s an advanced wave, so not for beginners. That’s the standout of the whole period, but it’s still just a “surfable but ordinary” moment.

After that, it’s more of the same. Thursday the 27th morning goes glassy with a 3 ft ENE swell, but the energy is still moderate (152) and the wave quality is poor. The following days through to the 5th of September are a mix of small swells, cross-shore winds, and onshore slop. There’s a moment on Tuesday the 1st of September morning with a 3 ft south swell and a light offshore wind, and the energy is moderate (220), but it’s again just ordinary. The long-range stuff towards the 5th of September has a south swell with a long period of 12 seconds and a 19 mph cross-offshore wind, but the swell is only 3 ft, and those strong winds are going to blow it out.

Honestly, there’s no proper standout here. The best bet is Wednesday the 26th morning, but even that’s a gamble. The rest is a flat, choppy mess. Keep an eye on the charts, but don’t hold your breath.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Sat night. Warm (max 21°C on Fri afternoon, min 13°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Tue night. Warm (max 22°C on Tue morning, min 13°C on Wed night). Winds decreasing (fresh winds from the NNE on Mon afternoon, calm by Thu morning).

Fri
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
NE
6
0.5
NE
6
0.2
S
9
0.3
S
8
0.2
S
12
1.2
S
9
0.7
S
12
1
S
10
0.8
S
10
0.7
S
10
1
ENE
6
0.5
S
9
1.1
ENE
7
1.4
ENE
7
1.2
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
1
ENE
9
0.9
ENE
8
Wave Graph
Metric surfscale
Energy kJ
64
18
6
12
12
220
153
202
123
90
80
40
107
207
166
106
95
105
141
111
Wind (km/h)
5
NE
10
WNW
20
W
10
SE
10
E
10
NW
15
NE
15
NNW
15
N
25
NE
15
N
20
N
15
NW
15
NW
20
SW
25
SE
10
SSE
0
NNW
15
ENE
10
NW
Wind State
glassy
cross-off
cross-off
cross
cross-on
cross
on
cross-on
cross-on
on
cross-on
cross-on
cross
cross
off
cross
cross-off
glassy
cross-on
cross
High Tide
3:51AM0.87m
4:04PM1.30m
5:01AM0.89m
5:01PM1.35m
5:53AM0.95m
5:50PM1.41m
6:35AM1.01m
6:31PM1.48m
7:12AM1.09m
7:09PM1.53m
7:47AM1.16m
7:45PM1.56m
Low Tide
10:10PM0.50m
9:07AM0.57m
11:13PM0.45m
10:15AM0.55m
00:02AM0.38m
11:12AM0.51m
00:42AM0.31m
12:01PM0.44m
1:16AM0.24m
12:44PM0.38m
1:49AM0.18m
1:24PM0.33m
2:19AM0.14m
part cloud
clear
clear
clear
rain showers
part cloud
clear
clear
clear
clear
part cloud
part cloud
light rain
light rain
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
6:24
6:24
6:22
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:29
5:29
5:30
5:30
5:30
5:31
5:32
 mm
3
3
4
Temp °C
21
16
19
18
16
15
17
15
18
18
17
22
20
16
17
15
15
16
15
14
Feels °C
20
12
15
15
15
14
14
12
14
14
14
19
17
13
13
11
13
13
12
13
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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 Shark Island (Cronulla) Surf forecast

The above surf forecast table for Shark Island (Cronulla) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Shark Island (Cronulla) can be found by selecting the local surf guide option on the grey menu. Our Shark Island (Cronulla) 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 (Shark Island (Cronulla)) 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 Shark Island (Cronulla) 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.

Shark Island (Cronulla) is 2 km (1 miles) from Cronulla. If you plan a holiday in Sydney South Coast, look for hotels and other accommodation in Cronulla. Cronulla has rooms for a wide range of budgets as well as car hire and transport links.

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