Surf Forecasts:
Shark Island (Cronulla) surf forecast from 11 Sep 2026:
- Best quality surf: Thursday 17 Sep, 7PM (local time) - 7.5ft (2.3m), 9s period, SSE swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 4PM (local time) - 11ft (3.5m), 10s period, S swell with 2,702 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 1AM (local time) - 4ft (1.2m), 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 Saturday (Sep 12) at 1AM. The primary swell is predicted to be 1.2m and 10s period with a secondary swell of 0.2m and 19s. 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 3.5m 10s and forecast to arrive on Wednesday (Sep 16) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Tuesday (Sep 15) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 12th Sep) | 4ft (1.2m) 10s |
| Best Surf | 7PM (Thu 17th Sep) | 7.5ft (2.3m) 9s |
| Most Powerful | 4PM (Wed 16th Sep) | 11ft (3.5m) 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 the next couple of weeks are shaping up like for Shark Island (Cronulla). This is a reef setup, so when it's on, it can be a gem, but it needs the right conditions.
The immediate outlook is a bit of a write-off, to be honest. We’ve got a long stretch of poor conditions straight off the bat. From Saturday the 12th right through to Wednesday the 23rd, it’s mostly onshore slop or tiny dribble. There’s a brief moment on Tuesday the 15th morning where we get a clean, gentle offshore breeze with 3ft swell, but with the combined energy only at 89, it’s pretty weak. The wind’s good, but there’s just not enough push for a proper session. It’s a tease, really.
Now, Wednesday the 16th is where things get interesting, but it’s not for everyone. A strong southerly swell builds in, hitting 10ft by the morning with a solid 1540 combined energy, and it’s howling offshore. That wind will make the faces glassy, but the size and power make this strictly for the advanced crew. It’s going to be a heavy, powerful wave, and paddling in will be a battle. The swell direction is S, which is okay for this spot, but it's not the optimum SE direction the reef likes best.
The standout, the one I’d be circling on the calendar, is Friday the 25th. After a long dry spell, the stars line up. Morning session sees a clean 6ft S swell, combined energy of 718, and a light offshore breeze from the SSE. This is proper. The wind will have the waves standing up clean, and the size is perfect for the reef. It’s going to offer some really good shape. With crowds listed as “sometimes,” you can expect a few regulars out, but it won't be a zoo. The swell direction is a touch south of the optimum SE, but the quality of the conditions more than makes up for it. The water temp is about average for the time of year, so a spring suit is fine.
After that, the weekend of the 26th and 27th gets messy again with strong onshore winds and big, lumpy surf. It’s a shame because there’s swell there, but the wind ruins it. For the experienced crew, the Wednesday the 16th session is a big, powerful challenge, but for the rest of us, that Friday the 25th morning is the clear winner in this forecast.
- Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Mon morning, min 13°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the NE by Sun afternoon). | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Tue afternoon. Very mild (max 18°C on Mon night, min 10°C on Tue night). Winds increasing (light winds from the WNW on Mon night, strong winds from the SSW by Wed morning). | ||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 | S 12 | S 10 | S 10 | S 10 | S 10 | S 10 | NE 6 | S 11 | ENE 6 | NE 7 | NE 7 | S 8 | S 9 | S 10 | S 10 | S 10 | SSE 9 | SSE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 271 | 330 | 225 | 128 | 115 | 135 | 102 | 104 | 82 | 67 | 71 | 37 | 1134 | 1500 | 2702 | 2695 | 1598 | 1016 | 493 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | off | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 8:50AM1.44m | 9:01PM1.50m | 9:27AM1.47m | 9:42PM1.38m | 10:04AM1.47m | 10:22PM1.25m | 10:41AM1.44m | 11:04PM1.12m | 11:21AM1.39m | 11:51PM1.01m | 12:07PM1.33m | 00:47AM0.92m | |||||||
Low Tide | 2:41AM0.07m | 2:53PM0.17m | 3:15AM0.13m | 3:37PM0.19m | 3:47AM0.21m | 4:22PM0.24m | 4:19AM0.29m | 5:09PM0.31m | 4:51AM0.38m | 6:00PM0.38m | 5:28AM0.47m | 6:59PM0.45m | |||||||
 |  | | | | |  |  | | | |  |  | | | | | | | |
 | — | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:52 | — | — |
 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | 3 | — | — | — |
Temp °C | 15 | 18 | 17 | 16 | 18 | 18 | 17 | 22 | 22 | 18 | 18 | 17 | 12 | 13 | 14 | 13 | 13 | 13 | 13 |
Feels °C | 15 | 14 | 13 | 14 | 14 | 13 | 16 | 19 | 18 | 17 | 15 | 14 | 4 | 3 | 4 | 3 | 7 | 8 | 11 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | S 12 | S 10 | S 10 | S 10 | S 10 | NE 6 | NE 6 | ENE 6 | ENE 6 | NE 7 | NE 7 | NE 7 | ENE 14 | ENE 12 | ENE 13 | E 13 | S 18 | SSE 9 |
| kJ | 271 | 330 | 225 | 115 | 115 | 135 | 94 | 40 | 39 | 67 | 71 | 37 | 7 | 20 | 15 | 17 | 3 | 6 | 493 |
Swell 2 Height (m) Direction Period (s) | SSE 19 | SSE 19 | SSE 19 | ENE 4 | ENE 5 | ENE 13 | S 10 | S 11 | S 11 | S 10 | S 9 | S 9 | E 14 | ENE 14 | — | — | S 18 | E 13 | E 13 |
| kJ | 35 | 122 | 71 | 12 | 9 | 17 | 102 | 86 | 82 | 49 | 15 | 14 | 4 | 20 | — | — | 7 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | E 13 | E 14 | ENE 14 | SSE 20 | SSE 16 | E 9 | E 13 | ENE 13 | ENE 13 | E 12 | E 13 | E 13 | — | — | — | — | — | — | NE 13 |
| kJ | 14 | 15 | 19 | 128 | 27 | 2 | 13 | 17 | 16 | 12 | 3 | 13 | — | — | — | — | — | — | 7 |
Wind waves Height (m) Direction Period (s) | — | — | E 3 | NE 4 | NE 5 | NE 4 | NNE 6 | NE 6 | — | — | SW 3 | SSE 3 | S 8 | S 9 | S 10 | S 10 | S 10 | SSE 9 | — |
| kJ | — | — | 7 | 28 | 22 | 28 | 108 | 104 | — | — | 2 | 7 | 1134 | 1500 | 2702 | 2695 | 1598 | 1016 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 1 | 472 | 1 | 1 | 472 | 1 | 1 | 5 | 0 | 0 | 40 | 40 | 874 | 694 | 120 | 43 | 73 | 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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