Surf Forecasts:
Shark Island (Cronulla) surf forecast from 28 Aug 2026:
- Best quality surf: Saturday 29 Aug, 7AM (local time) - 4.5ft (1.3m), 10s period, SSE swell with cross-offshore winds.
- Most powerful swell: Saturday 29 Aug, 10AM (local time) - 4.5ft (1.3m), 10s period, SSE swell with 325 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 7AM (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 Saturday (Aug 29) at 7AM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.4m and 9s. 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 Saturday (Aug 29) at 10AM. 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 Friday (Sep 04) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 29th Aug) | 4.5ft (1.3m) 10s |
| Best Surf | 7AM (Sat 29th Aug) | 4.5ft (1.3m) 10s |
| Most Powerful | 10AM (Sat 29th Aug) | 4.5ft (1.3m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
G’day, Rusty here. I’ve had a good look at the charts for Shark Island (Cronulla) and honestly, the next week and a bit is pretty grim. We’ve got a long, slow grind of tiny, weak surf ahead, but there’s a proper promise of something special if you can wait.
From now through to the start of September, it’s mostly flat and forgettable. Saturday the 29th of August has the best of a pretty ordinary bunch with a 4ft SSE swell and clean conditions thanks to a light cross-off breeze, but that’s about it for the first week. There’s a big gap after that where the swell just disappears. For days, we’re looking at knee-to-waist high slop at best, with combined swell energy dropping right off, getting down to weak two-digit values. The wind is all over the shop, mostly onshore or cross-shore, so it’s not worth paddling out. You’d be better off doing something else.
Then, hang in there. The real story is Tuesday the 8th of September. This is the standout. A solid, meaty 12ft to 13ft S swell is forecast to roll in, with a period of 9 to 11 seconds. That’s proper groundswell. The combined energy rockets up to 2068 on Tuesday morning and then a massive 3612 by the afternoon – that’s very strong energy. The wind is looking clean, with a light to gentle cross-off breeze keeping it glassy. This is not for the faint-hearted though. At 12ft to 13ft, this is strictly for experts. Shark Island is an advanced reef break, and these sizes will be heavy, powerful, and dangerous. It’ll be an absolute show for the crew who know what they’re doing. The swell direction is SSE, which is right in the optimum spot for this break.
The following day, Wednesday the 9th, has more sizeable surf with 8ft to 10ft, but a fresh offshore breeze is going to howl, making it tricky. The energy is still very strong, but the wind will make it a battle. Thursday and beyond start to settle back down, with the swell dropping and the quality fading again as we head into the second week.
So, for the keen and capable, the morning of Tuesday the 8th of September is the one to circle. It’ll be clean, powerful, and pumping. Don’t bother for anything before that.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Mon morning, min 11°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Thu morning, min 13°C on Mon night). Winds increasing (light winds from the NNE on Mon night, fresh winds from the WNW by Thu morning). | ||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
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 9 | SSE 10 | SSE 10 | SSE 10 | S 9 | S 9 | S 9 | S 8 | S 9 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SSE 9 | SSE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 261 | 325 | 246 | 157 | 99 | 120 | 194 | 103 | 101 | 136 | 184 | 149 | 135 | 71 | 68 | 50 | 47 | 29 | 28 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | glassy | cross-off | cross | cross-off | cross | on | cross-on | cross-on | on | cross | cross-off | cross-off | cross | cross | cross-off | off |
High Tide | 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 | — | — |
 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 14 | 16 | 15 | 14 | 17 | 17 | 16 | 21 | 22 | 19 | 26 | 26 | 21 | 27 | 26 | 17 |
Feels °C | 13 | 13 | 13 | 13 | 14 | 12 | 14 | 14 | 14 | 15 | 17 | 18 | 16 | 23 | 23 | 18 | 20 | 20 | 12 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 10 | SSE 10 | SSE 10 | S 9 | S 9 | S 9 | S 8 | S 9 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SSE 9 | SSE 9 |
| kJ | 261 | 325 | 246 | 157 | 99 | 120 | 194 | 103 | 101 | 136 | 184 | 149 | 135 | 71 | 68 | 50 | 47 | 29 | 28 |
Swell 2 Height (m) Direction Period (s) | NE 8 | S 9 | S 8 | S 8 | SE 10 | SE 9 | SSE 18 | SSE 15 | SSE 15 | ENE 9 | ENE 9 | ENE 11 | NE 5 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SSE 12 |
| kJ | 16 | 74 | 132 | 65 | 96 | 52 | 103 | 75 | 45 | 15 | 15 | 37 | 14 | 34 | 33 | 32 | 18 | 18 | 28 |
Swell 3 Height (m) Direction Period (s) | S 10 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 11 | NE 12 | ENE 10 | NE 5 | NE 5 | NE 5 | NE 5 | NE 5 | ENE 10 |
| kJ | 19 | 25 | 24 | 27 | 26 | 25 | 14 | 17 | 16 | 15 | 11 | 6 | 33 | 7 | 4 | 1 | 4 | 4 | 19 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | ENE 3 | NE 4 | — | ENE 4 | NW 2 | NW 3 | NNE 5 | NNW 2 | NNW 3 | WNW 4 | SW 4 |
| kJ | — | — | — | — | — | — | — | — | 3 | 3 | — | 12 | 1 | 2 | 17 | 1 | 3 | 10 | 15 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 60 | 1 | 1 | 5 | 1 | 1 | 0 | 1 | 1 | 34 | 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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