Shark Island (Cronulla) Surf Break

Lat Long: 34.06° S 151.16° E

Shark Island (Cronulla) Surf Forecast and Surf Report

Issued: 9 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shark Island (Cronulla) sea temperature is
17.2°C
0.5° 

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 27 Aug 2026:

  • Best quality surf: Friday 28 Aug, 7AM (local time) - 5.5ft (1.7m), 11s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Friday 28 Aug, 7AM (local time) - 5.5ft (1.7m), 11s period, SSE swell with 667 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 7AM (local time) - 5.5ft (1.7m), 11s period with SSE 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 Friday (Aug 28) at 7AM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 0.4m and 8s. 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 1.7m 11s and forecast to arrive on Friday (Aug 28) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (Aug 28) at 4PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Fri 28th Aug)5.5ft (1.7m) 11s
Best Surf 7AM (Fri 28th Aug)5.5ft (1.7m) 11s
Most Powerful 7AM (Fri 28th Aug)5.5ft (1.7m) 11s

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


The Lowdown

G’day, Rusty here. Look, I’m gonna level with you—this stretch from now through the middle of September is a real mixed bag, and you’ll need to pick your moments. The only proper standout window is the first Monday in September, and that’s a solid week away. Before that, it’s pretty ordinary, with a few days of small clean surf but nothing to get excited about. After that Monday, it fades again.

Let’s start with the good stuff. The first real recommendation is Friday morning, 28 August at Shark Island (Cronulla). We’ve got a 5ft SSE swell, period 11 seconds—that’s a proper groundswell, with good energy (700), and the wind is light offshore from the SW. That’s clean, lined-up waves on a reef setup. Water temperature is about average for this time of year, no real surprises there. The swell direction is SE, which is a bit off the optimum SSE, but it’s still working fine. For a Friday session, that’s the pick.

Friday afternoon turns ugly—wind swings SSE at 16 mph, cross-off but messy, and the swell drops to 5ft. Not worth it.

Saturday morning, 29 August is another chance—5ft SSE swell, 10-second period, light SSW cross-off wind. Clean, but the energy is moderate (620) and the period is shorter. It’ll be a fun, mellow surf, but not a standout. Saturday afternoon goes cross-shore and small.

Sunday morning, 30 August is clean with a 3ft S swell, 9-second period, offshore SW wind, but it’s weak (249) and small. Surfable, but ordinary.

Monday 31 August through to Saturday 6 September is mostly poor—small, weak, and often onshore or cross-shore. The swell drops to 1.0ft–2ft, period short, energy low. A few clean windows in there, like Thursday 3 September afternoon with offshore SSW wind, but it’s only 1ft. Not worth paddling for.

Now, Monday morning, 7 September—this is the big one. Shark Island gets a 8ft S swell, period 11 seconds, and the energy is massive (1261). The wind is offshore from the SW at 16 mph, keeping it clean and lined up. That’s a solid groundswell, and on a reef break like this, it’ll be offering some proper waves. It’s right at the edge of the optimum swell direction (SE) but the S direction is still excellent. This is only for advanced surfers—8ft is getting big, and with that period, the sets will have some punch. Monday afternoon drops off, with cross-shore wind and marginal conditions.

After that, Tuesday 8 September morning is clean with a 4ft S swell, light WNW cross-off wind, and moderate energy (355). It’s a good session, but nothing like Monday. The rest of the week fades to small, choppy, and poor.

So, the standout is clear: Monday morning, 7 September at Shark Island. That’s your best bet. Everything else is either too small, too windy, or just average. If you can’t make that Monday, the Friday and Saturday mornings before are your next best, but they’re not in the same league.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 16°C on Sun morning, min 11°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Wed afternoon, min 12°C on Sun night). Wind will be generally light.

Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
3
0
2
2
1
2
1
0
2
1
0
0
0
0
0
0
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)
1.2
S
9
1.6
SSE
11
1.5
SSE
10
1.3
SSE
9
1.5
SSE
10
1.2
SE
10
0.9
SSE
9
1
S
9
1.1
S
9
1.3
S
9
1.1
S
8
1
S
9
0.9
S
9
0.9
S
11
0.8
S
11
0.7
S
10
0.6
S
10
0.5
S
10
0.4
SSE
10
Wave Graph
Metric surfscale
Energy kJ
220
572
425
261
391
281
151
155
194
275
161
169
139
191
149
108
71
49
32
Wind (km/h)
10
WNW
10
SW
25
SSE
10
S
10
SSW
10
ESE
5
WNW
10
SW
15
ESE
10
WSW
10
NW
20
NE
10
NNW
15
N
15
NE
15
NW
20
NW
20
WNW
25
WNW
Wind State
cross-off
off
cross-off
cross-off
cross-off
cross
cross-off
off
cross
off
cross
on
cross-on
cross-on
on
cross
cross
cross-off
cross-off
High Tide
8:21AM1.24m
8:21PM1.56m
8:55AM1.31m
8:57PM1.53m
9:30AM1.37m
9:35PM1.46m
10:07AM1.41m
10:15PM1.37m
10:47AM1.44m
11:01PM1.26m
11:33AM1.44m
11:54PM1.14m
Low Tide
2:19AM0.14m
2:04PM0.29m
2:50AM0.12m
2:45PM0.26m
3:21AM0.12m
3:27PM0.25m
3:53AM0.14m
4:12PM0.26m
4:27AM0.19m
5:02PM0.29m
5:05AM0.26m
6:00PM0.32m
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:18
6:16
6:16
6:15
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:32
5:34
5:35
5:35
5:36
5:37
 mm
Temp °C
14
15
15
15
15
15
14
16
15
14
17
17
15
22
22
20
26
27
21
Feels °C
13
11
10
13
14
13
14
13
12
12
14
13
13
18
18
17
22
22
18
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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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