Surf Forecasts:
Shark Island (Cronulla) surf forecast from 28 Aug 2026:
- Best quality surf: Friday 28 Aug, 10PM (local time) - 4.5ft (1.3m), 10s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 10PM (local time) - 4.5ft (1.3m), 10s period, SSE swell with 319 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 10PM (local time) - 4.5ft (1.3m), 10s 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 10PM. The primary swell is predicted to be 1.3m and 10s 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 1.3m 10s and forecast to arrive on Friday (Aug 28) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Friday (Sep 04) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Fri 28th Aug) | 4.5ft (1.3m) 10s |
| Best Surf | 10PM (Fri 28th Aug) | 4.5ft (1.3m) 10s |
| Most Powerful | 10PM (Fri 28th Aug) | 4.5ft (1.3m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Alright, Rusty again. Let's run through the same outlook in feet and knots for the crew that thinks that way.
It's a bit of a slow start for Shark Island (Cronulla). The water's at 63°, dead average for this time of year, so no surprises there.
The real highlight on the board is Tuesday morning, September 8th. You're looking at a solid 5 to 6-foot swell straight out of the South, with a 9-second period. The wind is coming cross-off from the SSW at a light 15 mph, so it should be clean. The wave energy is strong, sitting at 497. That's a proper session for the advanced crew who know the reef. It's a bit big for the beginners, but for the experienced surfer, that's a standout.
The early part of the run is slim. Friday the 28th of August has some 5-foot waves, but that cross-off wind from the SSE at 15 mph is a bit rough. The following Saturday morning, the 29th, has a smaller 3 to 4-foot SE swell with a light 6 mph S wind. It's clean but small.
Then it turns flat. From Sunday the 30th of August right through to Monday the 7th of September, it’s mostly tiny, poor quality waves with onshore or cross winds. There’s nothing worth paddling out for there. A long dry spell, for sure.
Then we get that Tuesday the 8th I just talked about. Wednesday the 9th and Thursday the 10th also hold some decent energy from the SSE with longer periods, around 4 to 5 feet, and clean conditions early on. That longer period means better shape and more push, and on a reef like Shark Island, it should handle it well.
Into the second week, we get another surge. Saturday, September 12th shows a 6-foot swell from the SSE, with a 10-second period. The energy is strong at 772. But the wind is looking like it'll be onshore from the NE at 18 mph, which is a real shame. That much swell with a bad wind is just a mess. Keep an eye on it, but don't get your hopes up.
Sunday the 6th of September afternoon actually has a small bump from the South with clean wind, but it's only around 3 feet and moderate energy – worth a peek if you're really keen.
So, in short: the one to set your alarm for is the September 8th morning session at Shark Island. The rest of the time, you’re best off saving the wax.
Short Range ForecastMostly dry. Very mild (max 18°C on Mon morning, min 11°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Wed morning, min 13°C on Mon night). Winds increasing (light winds from the NW on Wed afternoon, fresh winds from the WNW by Thu morning). | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
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) | SSE 10 | SSE 9 | SE 10 | SSE 10 | SSE 10 | S 9 | S 9 | S 9 | S 8 | S 11 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SSE 10 | SSE 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 425 | 261 | 216 | 246 | 157 | 129 | 120 | 241 | 124 | 188 | 142 | 184 | 188 | 138 | 96 | 68 | 51 | 50 | 32 | 27 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | glassy | cross-off | cross | off | cross | on | cross-on | cross-on | on | cross | cross | cross | cross | cross | cross-off | cross-on |
High Tide | 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 | 12:27PM1.43m | 1:01AM1.04m | |||||||
Low Tide | 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 | 5:50AM0.33m | 7:08PM0.35m | ||||||||
 |  |  | | | | | | | | | | |  | | | | | | | |
 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — |
 | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 15 | 14 | 16 | 15 | 14 | 18 | 17 | 15 | 21 | 22 | 19 | 26 | 26 | 22 | 26 | 24 | 20 |
Feels °C | 11 | 13 | 13 | 13 | 13 | 14 | 12 | 13 | 15 | 13 | 13 | 17 | 18 | 15 | 22 | 24 | 19 | 18 | 16 | 18 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 9 | SE 10 | SSE 10 | SSE 10 | S 9 | S 9 | S 9 | S 8 | S 11 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SSE 10 | SSE 9 |
| kJ | 425 | 261 | 216 | 246 | 157 | 129 | 120 | 241 | 124 | 188 | 142 | 184 | 188 | 138 | 96 | 68 | 51 | 50 | 32 | 17 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | NE 8 | S 9 | S 8 | S 8 | SE 10 | SE 9 | SSE 18 | S 15 | SSE 15 | NE 4 | ENE 9 | ENE 11 | NE 5 | ENE 10 | ENE 10 | ENE 10 | NE 5 | ENE 10 | SSE 12 |
| kJ | 26 | 17 | 162 | 132 | 84 | 96 | 52 | 103 | 116 | 75 | 3 | 15 | 37 | 14 | 34 | 33 | 31 | 10 | 18 | 27 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 10 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 11 | NE 12 | ENE 10 | NE 5 | NE 5 | NE 5 | ENE 10 | NE 6 | ENE 10 |
| kJ | 2 | 19 | 25 | 24 | 27 | 26 | 24 | 14 | 17 | 16 | 15 | 12 | 6 | 34 | 7 | 4 | 1 | 18 | 5 | 19 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | E 3 | NE 4 | — | NE 4 | — | NW 3 | — | NNW 3 | WNW 3 | W 4 | — |
| kJ | — | — | — | — | — | — | — | — | — | 2 | 6 | — | 14 | — | 2 | — | 1 | 8 | 9 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 120 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 60 | 1 | 1 | 5 | 1 | 1 | 1 | 1 | 1 | 29 | 1 |
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.
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