
Surf Forecasts:
Shark Island (Cronulla) surf forecast from 10 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 4PM (local time) - 5ft (1.6m), 10s period, S swell with offshore winds.
- Most powerful swell: Tuesday 11 Aug, 4PM (local time) - 5ft (1.6m), 10s period, S swell with 553 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 4PM (local time) - 5ft (1.6m), 10s 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 Tuesday (Aug 11) at 4PM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 0.6m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Shark Island (Cronulla) in the next 16 days are 1.6m 10s and forecast to arrive on Tuesday (Aug 11) at 4PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Aug 11) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Tue 11th Aug) | 5ft (1.6m) 10s |
| Best Surf | 4PM (Tue 11th Aug) | 5ft (1.6m) 10s |
| Most Powerful | 4PM (Tue 11th Aug) | 5ft (1.6m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s shaping up for Shark Island (Cronulla) over the next couple of weeks. We’ve got a bit of a mixed bag, so let’s get into it.
Right off the bat, Tuesday morning (August 11th) is a write-off. There’s some knee-high, weak stuff around 2ft from the ENE, but the wind is howling at 19 mph from the WSW, making it a cross-off mess. The water temperature is sitting at a nippy 61°, which is about two and a half degrees colder than normal for this time of year – so that wetsuit is staying zipped up.
The real story starts to build on Tuesday afternoon. The southerly swell kicks in properly, looking like a solid 5ft with a decent 10-second period. The wind swings offshore from the WSW at 12 mph, and this is where we get our first real standout. The wave energy jumps right up (625), and the combination of a long-period groundswell from the south and clean offshore conditions should make for some really fun, shapely waves. This is the pick of the forecast. Just keep in mind, at this size it’s going to be more suited to experienced surfers, and with a rating of “sometimes” for crowds, you might be sharing the takeoff zone.
Wednesday morning (August 12th) hangs in there. We’ve still got 4ft of south swell and a lighter WNW cross-off breeze. The energy is moderate (272), and it’ll be clean, but the power isn’t as nuts as Tuesday afternoon.
The middle of the forecast week gets ordinary. Thursday afternoon (August 13th) sees the southerly swell bumping up to 5ft, but the wind goes onshore from the SE and messes it up. Friday looks underwhelming, and the whole weekend is a bit of a write-off with strong southerly winds and choppy conditions, even as the swell pushes 5ft to 6ft. The period drops to a short 6-7 seconds, which means weak, bumpy waves. For a reef break like Shark Island, this setup is more interesting for kite surfing than paddling.
We hit a bit of a lull. There’s nothing really good from Thursday the 13th all the way through to late on Monday the 17th, so that’s a solid 4-day gap of poor quality.
Now, look ahead to Wednesday the 19th of August. We get a whisper of a very long-period groundswell coming in from the ESE with a period of 12 seconds. The swell height is only 3ft, but that energy reading jumps back up (323) and the wind is a light south to cross-off. It’ll be clean, but with such a long period and a small size, it could be a bit straight and closey at the reef. Worth a look for a longboard or a fish, but it’s a little inconsistent.
The tail end of the forecast is pretty quiet again. We get a glassy morning on Wednesday the 26th with a bit of 3ft ENE swell, but it’s ordinary surf. A long, drawn-out outlook with one true standout session.
The Call: Don’t mess around. Your best shot is Tuesday afternoon (August 11th) and possibly Wednesday morning (August 12th) at Shark Island. The solid 5ft south swell with offshore wind on Tuesday is the one to circle.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Tue morning, min 11°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Fri night. Very mild (max 15°C on Fri morning, min 13°C on Fri morning). Winds increasing (light winds from the SE on Fri morning, fresh winds from the S by Sat morning). | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 10 | S 10 | S 11 | S 10 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SE 7 | SE 7 | ESE 7 | SE 7 |
Wave Graph | |||||||||||||||||||||
81 | 553 | 372 | 219 | 129 | 89 | 104 | 346 | 160 | 136 | 121 | 97 | 206 | 285 | 293 | 164 | 216 | 284 | 189 | 136 | 163 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | off | cross-off | off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross | cross-off | cross | cross | cross-on | cross | cross-on |
High Tide | 7:06PM1.77m | 7:55AM1.20m | 7:55PM1.79m | 8:40AM1.27m | 8:42PM1.76m | 9:23AM1.32m | 9:26PM1.67m | 10:05AM1.35m | 10:09PM1.54m | 10:46AM1.37m | 10:52PM1.38m | 11:28AM1.37m | 11:35PM1.22m | ||||||||
Low Tide | 12:34PM0.28m | 1:54AM-0.01m | 1:28PM0.23m | 2:38AM-0.03m | 2:19PM0.20m | 3:19AM-0.02m | 3:08PM0.20m | 3:57AM0.03m | 3:57PM0.23m | 4:34AM0.11m | 4:46PM0.29m | 5:08AM0.21m | 5:38PM0.36m | ||||||||
6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | |
— | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | 4 | 1 | 1 | 2 | 1 | 2 | — |
Temp °C | 19 | 19 | 12 | 18 | 18 | 13 | 15 | 15 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 |
Feels °C | 14 | 14 | 6 | 13 | 12 | 9 | 12 | 11 | 9 | 12 | 12 | 12 | 9 | 9 | 11 | 10 | 9 | 11 | 12 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | S 10 | S 11 | S 10 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | ENE 9 | ENE 9 | ENE 10 | SSE 16 | SSE 15 | ENE 10 | S 9 | ESE 7 | S 8 |
48 | 553 | 372 | 219 | 129 | 89 | 104 | 190 | 160 | 136 | 121 | 97 | 17 | 17 | 18 | 53 | 42 | 10 | 36 | 136 | 22 | |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 9 | ENE 10 | ENE 10 | E 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | S 14 | ENE 10 | S 18 | ENE 10 | ENE 10 | SSW 13 | S 14 | S 9 | S 12 |
81 | 72 | 49 | 52 | 52 | 44 | 31 | 29 | 29 | 30 | 29 | 17 | 4 | 18 | 27 | 19 | 10 | 55 | 4 | 55 | 11 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 13 | S 12 | S 19 | S 14 | S 19 | SSE 19 | SSE 16 | S 20 | S 14 | — | S 14 | ENE 10 | S 10 | ENE 10 | S 14 | — |
— | — | — | — | — | 3 | 3 | 7 | 15 | 7 | 37 | 24 | 8 | 4 | — | 4 | 20 | 18 | 11 | 4 | — | |
Wind waves Height (m) Direction Period (s) | W 4 | — | W 3 | NW 2 | NW 3 | W 3 | W 3 | S 8 | — | — | — | — | S 7 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SE 7 | SE 7 | — | SE 7 |
9 | — | 5 | 1 | 2 | 3 | 1 | 346 | — | — | — | — | 206 | 285 | 293 | 164 | 216 | 284 | 189 | — | 163 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 20 | 0 | 1 | 0 | 0 | 0 | 0 | 43 | 1 | 0 | 0 | 32 | 95 | 43 | 43 | 229 | 655 | 46 | 132 | 132 | 5 |
Best forecast wave conditions in Sydney South Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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.











