Shark Island (Cronulla) Surf Break

Lat Long: 34.06° S 151.16° E

Shark Island (Cronulla) Surf Forecast and Surf Report

Issued: 3 am 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shark Island (Cronulla) sea temperature is
16.9° C
0.7° 

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 20 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 4AM (local time) - 2ft (0.6m), 11s period, S swell with glassy winds.
  • Most powerful swell: Sunday 23 Aug, 7PM (local time) - 3.5ft (1.0m), 11s period, S swell with 248 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 2ft (0.6m), 11s period with S 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 Sunday (Aug 23) at 4AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.3m and 4s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Shark Island (Cronulla) in the next 16 days are 1.0m 11s and forecast to arrive on Sunday (Aug 23) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Wednesday (Aug 26) at 10PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 23rd Aug)2ft (0.6m) 11s
Best Surf 4AM (Sun 23rd Aug)2ft (0.6m) 11s
Most Powerful 7PM (Sun 23rd Aug)3.5ft (1.0m) 11s

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


The Lowdown

G'day, Rusty here. Look, I'll be straight with you—this isn't a week to get excited about, but if you're patient, there's a couple of windows that might just make it worthwhile. The first solid surf on offer isn't until Sunday the 30th of August, so we've got a gap of about a week of pretty ordinary conditions to sit through.

Let's walk through it. From now, Friday the 21st of August, right through to Saturday the 29th, it's mostly poor. Small, weak swell and bad wind directions. You'll see tiny waves around 0.7ft to 3ft but combined wave energy stays low, often under 150, and the wind is either onshore or cross-shore at best. There's a brief moment on Wednesday the 26th morning with a 3ft swell from the ENE with a period of 8 seconds and a gentle offshore breeze from the SW makes things clean, but it's still only surfable in a very ordinary way—nothing to write home about.

Now, Sunday the 30th of August is where things start to perk up. Sunday morning at Shark Island (Cronulla) we're looking at a 5ft easterly swell, period 8 seconds, combined wave energy hitting 319 (moderate), and the wind goes glassy. That's a standout—clean, glassy conditions on a reef break with a decent sized swell. The water temp is about average for this time of year at 62°, so a steamer is your friend. That morning session is the pick of the whole outlook. Afternoon the wind swings onshore and chops it up, so get in early.

Monday the 31st of August morning holds some promise too. A 5ft ENE swell with period 8 seconds, combined energy at 340, and a cross-offshore breeze from the west at 9 mph should keep it clean. But keep an eye on that swell height—over 5ft, so it's getting into intermediate territory, might be a handful for beginners. The morning is your window before the wind cranks up from the SSW at 19 mph in the afternoon.

After that, it tails off. The first few days of September look small and weak again, with a blip on Saturday the 5th of September morning—2ft from the east, period 10 seconds, glassy wind, but combined energy is only 116, so it's just a small, surfable wave, nothing special.

Overall, the standout is Sunday the 30th of August morning at Shark Island—good size, glassy, and clean. Monday the 31st morning is a solid backup. The rest is a write-off until then. Stay keen, and check back in case the forecasts shift.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 21°C on Fri morning, min 13°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Tue afternoon. Warm (max 21°C on Tue morning, min 13°C on Wed night). Winds increasing (light winds from the NNW on Mon night, fresh winds from the SSW by Wed night).

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
AM
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
1
0
0
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)
0.8
ENE
6
0.9
NE
6
0.4
NE
6
0.2
S
9
0.3
S
8
0.2
S
12
1
S
10
0.6
S
13
0.9
S
10
0.8
S
10
0.7
S
10
0.6
S
10
0.9
ENE
7
0.5
S
9
1
ENE
7
0.9
ENE
8
1
ENE
8
0.9
ENE
8
1
S
7
1
S
7
0.8
ENE
8
Wave Graph
Metric surfscale
Energy kJ
47
64
13
6
12
11
179
117
158
116
92
64
68
39
105
112
140
103
103
103
78
Wind (km/h)
10
NW
10
NE
15
W
20
W
10
SE
5
SSE
5
NW
10
NNE
10
NNW
15
N
25
NE
10
N
20
NNE
15
NNW
15
NNW
15
SW
30
S
25
SW
35
S
30
S
15
SSW
Wind State
cross
on
cross-off
cross-off
cross
glassy
cross
on
cross
cross-on
on
cross-on
cross-on
cross
cross
off
cross-off
off
cross-off
cross-off
off
High Tide
2:59PM1.27m
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
part cloud
clear
clear
clear
clear
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
light rain
light rain
rain showers
part cloud
rain showers
rain showers
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
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
2
1
1
3
1
Temp °C
21
21
16
20
19
15
14
16
16
18
18
18
21
20
17
17
15
14
15
15
14
Feels °C
20
19
13
17
16
14
13
13
14
15
15
16
16
17
14
15
10
10
8
8
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Shark Island (Cronulla):

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Shark Island (Cronulla) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest