Surf Forecasts:
Shark Island (Cronulla) surf forecast from 26 Aug 2026:
- Best quality surf: Friday 28 Aug, 7AM (local time) - 5.5ft (1.7m), 11s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 4AM (local time) - 5.5ft (1.7m), 12s period, SSE swell with 741 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 1PM (local time) - 5.5ft (1.7m), 9s 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 Thursday (Aug 27) at 1PM. The primary swell is predicted to be 1.7m and 9s period with a secondary swell of 0.6m and 8s. 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 1.7m 12s and forecast to arrive on Friday (Aug 28) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Friday (Aug 28) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Thu 27th Aug) | 5.5ft (1.7m) 9s |
| Best Surf | 7AM (Fri 28th Aug) | 5.5ft (1.7m) 11s |
| Most Powerful | 4AM (Fri 28th Aug) | 5.5ft (1.7m) 12s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
G’day, Rusty here again. Let’s break down the same outlook in feet and Fahrenheit.
The water temp is 63°F, which is about normal for this time of year.
Friday morning, 28 August, brings swell around 5 feet from the SSE with a 11-second period, and clean offshore wind from the SW at 10 km/h. Combined energy sits at a moderate 700. Good, clean waves for the advanced crew at this reef break.
The big one arrives on the morning of 10 September: a solid SSE groundswell pushing 12 feet with a very long 14-second period. Combined energy is a huge 4370, and the wind is offshore from the SSW at 20 km/h. This is expert-only territory—way over 8 feet, long period, and a reef break. The morning of 11 September also holds excellent conditions, with 10 feet SSE swell and a 12-second period, with light offshore wind.
After Saturday afternoon, 29 August, the surf goes flat for about 9 days straight—tiny waves under 3 feet, poor conditions, and weak energy. Not worth the paddle.
The only true standouts are the big morning windows on 10 and 11 September.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Thu morning, min 11°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue afternoon, min 12°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
AM | 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 9 | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SE 10 | SSE 10 | S 9 | S 9 | S 9 | S 8 | SSE 9 | S 9 | S 12 | S 11 | S 10 | S 10 | ENE 10 | ENE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 735 | 340 | 220 | 572 | 425 | 292 | 261 | 220 | 164 | 126 | 194 | 207 | 161 | 138 | 110 | 171 | 154 | 80 | 47 | 32 | 32 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | off | cross-off | cross-off | glassy | cross-on | cross-off | cross-off | cross | off | cross | on | cross-on | cross-on | cross-off | cross | cross | cross | cross |
High Tide | 7:45PM1.56m | 8:21AM1.24m | 8:21PM1.56m | 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 | ||||||||
Low Tide | 1:24PM0.33m | 2:19AM0.14m | 2:04PM0.29m | 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 | ||||||||
 |  |  | | | | | | | | | | | | | | | | | | | |
 | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — |
 | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 16 | 15 | 15 | 17 | 17 | 15 | 23 | 26 | 20 | 27 | 27 | 21 |
Feels °C | 12 | 13 | 13 | 11 | 10 | 13 | 14 | 13 | 14 | 14 | 12 | 14 | 14 | 13 | 13 | 19 | 21 | 16 | 21 | 21 | 17 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SE 10 | SSE 10 | S 9 | S 9 | S 9 | S 8 | SSE 9 | S 9 | S 12 | S 11 | S 10 | S 10 | ENE 10 | ENE 10 |
| kJ | 575 | 340 | 220 | 572 | 425 | 292 | 261 | 220 | 164 | 126 | 194 | 207 | 161 | 138 | 110 | 171 | 154 | 80 | 47 | 32 | 32 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 8 | SSE 13 | ENE 8 | ENE 8 | NE 8 | S 9 | S 9 | S 9 | SE 10 | ENE 9 | ENE 9 | S 17 | S 16 | SSE 16 | ENE 11 | ENE 11 | ENE 6 | ENE 10 | S 9 | NE 6 |
| kJ | 42 | 24 | 183 | 27 | 26 | 16 | 188 | 159 | 120 | 94 | 25 | 15 | 144 | 134 | 81 | 22 | 38 | 23 | 33 | 28 | 5 |
Swell 3 Height (m) Direction Period (s) | S 15 | SSE 14 | ENE 9 | S 14 | S 11 | S 10 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | SE 9 | SSE 16 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | S 18 | ENE 10 | NE 6 | NE 5 | S 9 |
| kJ | 38 | 41 | 44 | 101 | 2 | 19 | 25 | 24 | 28 | 25 | 21 | 51 | 17 | 16 | 15 | 7 | 6 | 34 | 11 | 5 | 14 |
Wind waves Height (m) Direction Period (s) | S 9 | — | — | — | — | — | — | — | — | — | — | — | — | ENE 3 | NE 3 | NNE 4 | NE 5 | NW 3 | NNW 3 | NW 3 | NW 3 |
| kJ | 735 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 23 | 2 | 4 | 4 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 82 | 0 | 0 | 5 | 0 | 0 | 43 | 0 | 1 | 60 | 1 | 1 | 1 | 1 | 1 | 1 | 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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