Surf Forecasts:
Shark Island (Cronulla) surf forecast from 4 Sep 2026:
- Best quality surf: Monday 7 Sep, 1AM (local time) - 7.5ft (2.3m), 10s period, S swell with offshore winds.
- Most powerful swell: Sunday 6 Sep, 10PM (local time) - 10ft (3.0m), 11s period, S swell with 2,256 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 1PM (local time) - 3.5ft (1.1m), 7s period with SSW 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 (Sep 06) at 1PM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.7m and 7s. Another secondary swell of 0.4m and 7s is also forecast. 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 3.0m 11s and forecast to arrive on Sunday (Sep 06) 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 0.9m 4s period and expected on Sunday (Sep 06) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sun 6th Sep) | 3.5ft (1.1m) 7s |
| Best Surf | 1AM (Mon 7th Sep) | 7.5ft (2.3m) 10s |
| Most Powerful | 10PM (Sun 6th Sep) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Alright, let's talk Shark Island (Cronulla). This is a proper reef break for the skilled crew, needing that south-east energy to light up.
We're starting with a dud. This weekend is dead with tiny waves and lousy winds – combined swell energy is a weak-ass 75 to 109. Not worth getting wet.
But things start stirring on Monday the 7th of September. We get a clean 5ft swell from the south, light WNW offshore breeze, and moderate energy of 349. It's a glimmer, but not the main event.
The main event is definitely Tuesday the 8th of September. The morning session brings a solid 7ft swell from the SSE, period of 9 seconds, and clean S cross-off wind. The energy cranks up to a very strong 839. That's a heavy, powerful reef wave for experts only. There's no denying that's your best window.
Later Tuesday, the swell maxes out at 8ft with a longer 11-second period, and we see combined energy hit a massive 1191. But the wind goes to a gentle cross-onshore from the east, which will definitely mess up the surface. It's a big, long-period groundswell, but the morning session is the cleaner call.
After Tuesday, it's a steady decline. Wednesday the 9th still has a clean morning with a 5ft SSE swell and light WNW winds, but it's not as good. From Thursday onward, it's all marginal or poor surf with strong southerly winds, making for bumpy, tough conditions. A lot of that week has swell over 5ft, but the wind just won't play ball. Not a beginner's paradise by any stretch.
So, skip the weekend, set your alarm for early Tuesday the 8th for the cleanest, most powerful swell of the run.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Sat afternoon, min 13°C on Sat night). Winds increasing (light winds from the NNW on Fri night, fresh winds from the WSW by Sat night). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Wed afternoon. Very mild (max 19°C on Wed morning, min 11°C on Tue night). Mainly near gales. | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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) | S 8 | S 11 | S 9 | S 9 | ENE 6 | S 7 | S 8 | S 10 | S 9 | SSE 9 | SSE 9 | SSE 9 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | S 9 | S 10 | S 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 82 | 59 | 60 | 43 | 35 | 47 | 82 | 1013 | 339 | 268 | 1377 | 826 | 1189 | 529 | 329 | 516 | 1955 | 1087 | 885 | 914 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-on | cross-off | cross-off | off | cross-off | off | cross-off | cross | cross-off | cross-off | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:23AM0.97m | 2:45PM1.44m | 3:51AM0.97m | 3:59PM1.49m | 5:04AM1.03m | 5:04PM1.56m | 6:02AM1.12m | 6:01PM1.63m | 6:50AM1.21m | 6:51PM1.66m | 7:33AM1.31m | 7:37PM1.65m | ||||||||
Low Tide | 8:29PM0.35m | 7:55AM0.47m | 9:51PM0.31m | 9:14AM0.47m | 11:01PM0.23m | 10:29AM0.43m | 11:58PM0.15m | 11:33AM0.36m | 00:46AM0.08m | 12:29PM0.28m | 1:28AM0.04m | 1:19PM0.22m | 2:06AM0.04m | |||||||
 |  |  | |  | | | | | | | | | | |  |  | | |  | |
 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | — | — | 1 |
Temp °C | 19 | 17 | 26 | 29 | 20 | 20 | 18 | 16 | 18 | 16 | 15 | 14 | 14 | 14 | 19 | 16 | 13 | 15 | 15 | 15 |
Feels °C | 15 | 15 | 22 | 23 | 14 | 15 | 13 | 12 | 15 | 12 | 7 | 11 | 11 | 11 | 15 | 10 | 5 | 8 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | S 8 | SSE 7 | S 9 | NE 6 | ENE 6 | S 7 | S 8 | S 10 | S 9 | SSE 9 | E 10 | SSE 9 | SSE 11 | SSE 10 | SSE 9 | E 9 | S 16 | SSE 22 | SSE 23 | S 10 |
| kJ | 82 | 41 | 60 | 31 | 35 | 47 | 82 | 1013 | 339 | 268 | 9 | 826 | 1189 | 529 | 329 | 2 | 47 | 95 | 175 | 914 |
Swell 2 Height (m) Direction Period (s) | NE 8 | S 11 | E 9 | S 9 | S 9 | NE 7 | NE 7 | ENE 10 | E 10 | E 10 | — | E 11 | E 10 | E 10 | NNE 4 | E 17 | E 16 | E 16 | E 15 | SSE 22 |
| kJ | 9 | 59 | 7 | 43 | 27 | 17 | 7 | 10 | 8 | 8 | — | 2 | 2 | 2 | 3 | 6 | 5 | 5 | 5 | 161 |
Swell 3 Height (m) Direction Period (s) | ENE 10 | NE 7 | NE 7 | E 9 | E 11 | E 11 | E 10 | E 10 | NE 8 | NE 7 | — | ENE 11 | — | NE 9 | E 9 | NE 4 | — | NE 16 | NE 15 | E 15 |
| kJ | 18 | 8 | 2 | 7 | 2 | 9 | 9 | 8 | 2 | 2 | — | 11 | — | 3 | 2 | 1 | — | 10 | 9 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | NE 5 | W 3 | WSW 4 | W 4 | — | — | — | — | SSE 9 | — | — | NNE 3 | WNW 3 | SSE 9 | SSE 9 | S 9 | S 10 | — |
| kJ | — | — | 6 | 7 | 10 | 9 | — | — | — | — | 1377 | — | — | 3 | 1 | 516 | 1955 | 1087 | 885 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 68 | 1 | 1 | 35 | 38 | 29 | 691 | 0 | 0 | 60 | 120 | 0 | 5 | 1 | 0 | 209 | 153 | 120 | 350 | 51 |
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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