Surf Forecasts:
Shark Island (Cronulla) surf forecast from 24 Aug 2026:
- Best quality surf: Thursday 27 Aug, 4AM (local time) - 5ft (1.5m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Saturday 29 Aug, 7AM (local time) - 7.5ft (2.3m), 9s period, SSE swell with 828 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 4AM (local time) - 3ft (0.9m), 8s period with ENE 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 (Aug 26) at 4AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.2m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Shark Island (Cronulla) in the next 16 days are 2.3m 9s and forecast to arrive on Saturday (Aug 29) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Wednesday (Aug 26) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 26th Aug) | 3ft (0.9m) 8s |
| Best Surf | 4AM (Thu 27th Aug) | 5ft (1.5m) 8s |
| Most Powerful | 7AM (Sat 29th Aug) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a 16-day window for Shark Island (Cronulla), and honestly, it’s a bit of a tough stretch ahead. The first worthwhile surf doesn’t show up until Thursday morning the 27th of August, and even then it’s not a home run. The water is sitting at 63°, which is about average for this time of year, no real anomaly to speak of.
Thursday 27th August is where things finally get a pulse. There’s a 5ft swell from the south with an 8-second period and decent cross-offshore wind. The combined energy is moderate at 375 – you’ll feel some push. It’s clean early with a light breeze, making it the pick of the run even though it’s solidly for the advanced crew. Crowds are sometimes an issue here, but for a Thursday morning on a 5ft wave, you might luck out.
Friday 28th rolls in smaller, with a 3ft SSE swell in the morning (10-second period, 211 energy) and glassy cross-off wind. The conditions are clean but the waves are ordinary – not bad for a grovel if you’re keen, but nothing to set an alarm for.
Saturday 29th August is the standout across the whole outlook. Morning session sees a 5ft swell from the SSE, 9-second period, and clean cross-off wind from the south. The combined energy hits 440, which is the biggest reading in the whole run. The southeast direction isn’t ideal for Shark Island, but the clean wind and size make it the best on offer for the advanced surfer. Crowds are a possibility here, so get in early.
After Saturday, it drops off quick. Sunday the 30th and Monday the 31st serve up tiny waves under 2ft. The 31st has a glassy morning with a very long 18-second period from the SSE – that’s a groundswell, but at only 1ft and 143 energy, it’s barely a ripple. That long period will make it straight at this reef, so it’s not really doing anything for us.
From the 1st of September right through to the end of the forecast on the 8th, the surf stays small and ordinary. The best of a bad bunch is Thursday the 3rd of September morning with 2ft from the south, clean offshore wind, but hardly worth paddling out. There’s a little bump on the 5th and 6th of September with 3ft and 2ft, but conditions are marginal at best.
All up, Saturday 29th August is your window. The rest is a long quiet spell with only a few tiny, clean moments. If nothing’s moving, don’t stress – forecasts can change, and this spot can turn on quick.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Tue night. Very mild (max 19°C on Tue morning, min 14°C on Wed night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Fri morning, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
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) | NE 6 | ENE 7 | NE 7 | ENE 8 | ENE 8 | ENE 8 | S 8 | S 9 | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | S 10 | S 9 | S 8 | S 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 184 | 76 | 231 | 103 | 76 | 78 | 258 | 386 | 304 | 225 | 407 | 370 | 201 | 395 | 236 | 181 | 97 | 69 | 47 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | on | cross |
High Tide | 6:35AM1.01m | 6:31PM1.48m | 7:12AM1.09m | 7:09PM1.53m | 7:47AM1.16m | 7:45PM1.56m | 8:21AM1.24m | 8:21PM1.56m | 8:55AM1.31m | 8:57PM1.53m | 9:30AM1.37m | 9:35PM1.46m | |||||||
Low Tide | 00:42AM0.31m | 12:01PM0.44m | 1:16AM0.24m | 12:44PM0.38m | 1:49AM0.18m | 1:24PM0.33m | 2:19AM0.14m | 2:04PM0.29m | 2:50AM0.12m | 2:45PM0.26m | 3:21AM0.12m | 3:27PM0.25m | 3:53AM0.14m | ||||||
 |  | |  | |  |  |  |  | | |  | | | |  | | | | |
 | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — |
 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — |
mm | — | 1 | 2 | 4 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 19 | 17 | 16 | 17 | 16 | 15 | 15 | 15 | 14 | 18 | 15 | 15 | 15 | 14 | 13 | 15 | 15 | 13 |
Feels °C | 14 | 14 | 13 | 14 | 13 | 11 | 11 | 13 | 13 | 14 | 15 | 11 | 12 | 9 | 10 | 12 | 13 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | NE 6 | ENE 7 | NE 7 | ENE 8 | ENE 8 | ENE 8 | S 8 | S 9 | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | S 8 | SSE 9 | S 10 | S 9 | S 8 | S 8 |
| kJ | 88 | 76 | 126 | 103 | 76 | 78 | 258 | 386 | 304 | 225 | 407 | 370 | 201 | 311 | 236 | 181 | 97 | 69 | 47 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 9 | S 9 | S 9 | S 9 | S 11 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | SSE 9 | S 8 | SE 9 | SE 9 | SE 9 | SE 8 |
| kJ | 46 | 27 | 27 | 14 | 6 | 9 | 52 | 55 | 40 | 45 | 38 | 26 | 24 | 395 | 108 | 120 | 90 | 65 | 21 |
Swell 3 Height (m) Direction Period (s) | S 18 | S 15 | S 16 | S 16 | S 16 | — | S 15 | S 15 | SSE 14 | SSE 14 | S 12 | SSW 11 | — | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 6 | 19 | 20 | 21 | 5 | — | 4 | 17 | 40 | 39 | 76 | 43 | — | 28 | 30 | 31 | 32 | 33 | 28 |
Wind waves Height (m) Direction Period (s) | NE 6 | — | NE 7 | NW 2 | SSW 3 | S 5 | — | — | — | — | — | SSW 3 | SSE 5 | — | — | — | — | ENE 3 | NE 4 |
| kJ | 184 | — | 231 | 1 | 4 | 77 | — | — | — | — | — | 2 | 33 | — | — | — | — | 3 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 15 | 15 | 1 | 32 | 46 | 29 | 0 | 60 | 1 | 0 | 43 | 0 | 43 | 40 | 0 | 1 | 2 | 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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