Surf Forecasts:
Shark Island (Cronulla) surf forecast from 7 Sep 2026:
- Best quality surf: Friday 11 Sep, 1AM (local time) - 8ft (2.5m), 10s period, SSE swell with offshore winds.
- Most powerful swell: Wednesday 9 Sep, 10PM (local time) - 13ft (4.0m), 10s period, S swell with 2,869 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 7AM (local time) - 3.5ft (1.0m), 8s 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 Wednesday (Sep 09) at 7AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.7m and 7s. Another secondary swell of 0.3m and 2s 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 4.0m 10s and forecast to arrive on Wednesday (Sep 09) 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 0.4m 3s period and expected on Wednesday (Sep 09) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Wed 9th Sep) | 3.5ft (1.0m) 8s |
| Best Surf | 1AM (Fri 11th Sep) | 8ft (2.5m) 10s |
| Most Powerful | 10PM (Wed 9th Sep) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
G’day, Rusty here again. Let’s talk in feet and miles per hour for the crew across the ditch.
Right, Shark Island (Cronulla) is a reef break that needs everything to line up, and over the 16 days we’ve got a long wait for the good stuff.
First up, there’s a dry spell to start. Nothing worth getting wet for on the first days. The first notable event is on Thursday, September 10th. We’ve got a 10ft swell from the south with a 10-second period, and the combined energy is strong at 1810. Wind is cross-off at 19 mph. This is over 8ft, so only for the expert crew. The swell direction isn’t spot on for the optimum (SSE), so it’s a bit of a battle.
Friday, September 11th morning is a touch smaller at 8ft, but still solid, with 20 mph cross-off wind. Combined energy is high at 2077. Still big, still for experts only.
The real standout is Thursday, September 17th morning. This is it. A clean 6ft swell from the SSE with a 10-second period, combined energy at 726. The wind is light offshore at 9 mph from the SSW, glassy conditions. “Expect very good surf conditions.” This is the call: clean, fun-sized waves, the reef will be peeling. Crowds can sometimes be a factor. Water temp is average for the season.
After that, it’s mostly onshore junk. Saturday, September 19th afternoon has a 7ft south swell, but it’s crossed out by 19 mph winds. Sunday, September 20th morning is a blown-out mess with 8ft south swell and 28 mph cross-winds.
The afternoon of the 20th has a 6ft south swell with a fresh offshore at 19 mph, but it’s marginal due to tides.
If you’re holding out, the 17th is your day. The rest is either too big, too messy, or just poor quality.
- Rusty
Short Range ForecastSome drizzle, heaviest during Mon night. Very mild (max 16°C on Tue morning, min 10°C on Tue night). Winds increasing (light winds from the SE on Tue afternoon, strong winds from the S by Wed afternoon). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Thu night. Warm (max 21°C on Sun morning, min 11°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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) | S 8 | SSE 9 | SSE 8 | S 9 | S 8 | S 8 | S 10 | S 10 | S 10 | SSE 10 | S 10 | SSE 9 | SSE 9 | SSE 11 | SSE 10 | S 10 | SSE 9 | SSE 10 | S 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 1280 | 908 | 486 | 252 | 108 | 1237 | 2642 | 1734 | 1732 | 1396 | 1170 | 579 | 487 | 503 | 331 | 184 | 115 | 128 | 125 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | off | cross-off | off | cross-off | cross-off | off | cross-off | cross | off | cross | on | cross | cross-on | on | cross-off |
High Tide | 6:02AM1.12m | 6:01PM1.63m | 6:50AM1.21m | 6:51PM1.66m | 7:33AM1.31m | 7:37PM1.65m | 8:13AM1.38m | 8:20PM1.59m | 8:50AM1.44m | 9:01PM1.50m | 9:27AM1.47m | 9:42PM1.38m | |||||||
Low Tide | 11:58PM0.15m | 11:33AM0.36m | 00:46AM0.08m | 12:29PM0.28m | 1:28AM0.04m | 1:19PM0.22m | 2:06AM0.04m | 2:07PM0.18m | 2:41AM0.07m | 2:53PM0.17m | 3:15AM0.13m | 3:37PM0.19m | 3:47AM0.21m | ||||||
 |  |  |  | |  |  | | | | | | | | | | | | | |
 | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — |
 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — |
mm | 1 | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 15 | 14 | 15 | 14 | 14 | 14 | 15 | 15 | 16 | 15 | 14 | 18 | 17 | 15 | 21 | 20 | 19 |
Feels °C | 7 | 11 | 12 | 12 | 9 | 4 | 5 | 6 | 8 | 10 | 13 | 12 | 13 | 13 | 12 | 13 | 16 | 15 | 18 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 11 | SSE 8 | S 9 | S 8 | ESE 13 | ESE 11 | ESE 10 | S 22 | E 15 | SSE 10 | SSE 9 | SSE 9 | SSE 11 | SSE 10 | S 10 | SSE 9 | SSE 10 | S 10 |
| kJ | 9 | 2 | 486 | 252 | 108 | 17 | 41 | 20 | 238 | 4 | 901 | 579 | 487 | 503 | 331 | 184 | 115 | 128 | 125 |
Swell 2 Height (m) Direction Period (s) | — | — | E 10 | SE 7 | SE 7 | E 9 | SSW 16 | SSE 23 | ESE 9 | S 22 | E 15 | E 14 | E 13 | SSE 18 | SSE 18 | NE 5 | SSE 18 | E 13 | NE 5 |
| kJ | — | — | 2 | 67 | 51 | 2 | 51 | 51 | 8 | 9 | 4 | 4 | 14 | 66 | 65 | 14 | 61 | 14 | 23 |
Swell 3 Height (m) Direction Period (s) | — | — | N 9 | E 10 | E 9 | E 17 | — | E 16 | E 15 | ENE 15 | E 10 | ENE 14 | S 18 | ENE 14 | E 14 | SSE 20 | NE 5 | ENE 13 | E 13 |
| kJ | — | — | 2 | 8 | 6 | 6 | — | 5 | 5 | 21 | 2 | 18 | 6 | 19 | 16 | 135 | 3 | 17 | 13 |
Wind waves Height (m) Direction Period (s) | S 8 | SSE 9 | — | — | SW 3 | S 8 | S 10 | S 10 | S 10 | SSE 10 | S 10 | — | — | — | ENE 3 | NNE 5 | NNW 2 | ENE 4 | — |
| kJ | 1280 | 908 | — | — | 2 | 1237 | 2642 | 1734 | 1732 | 1396 | 1170 | — | — | — | 6 | 33 | 1 | 13 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 153 | 73 | 0 | 1 | 0 | 694 | 40 | 153 | 263 | 0 | 29 | 39 | 0 | 1 | 60 | 1 | 1 | 26 | 0 |
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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