Surf Forecasts:
Shark Island (Cronulla) surf forecast from 26 Aug 2026:
- Best quality surf: Thursday 27 Aug, 4AM (local time) - 6ft (1.9m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 10AM (local time) - 7.5ft (2.3m), 9s period, S swell with 803 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 4AM (local time) - 6ft (1.9m), 8s 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 4AM. The primary swell is predicted to be 1.9m and 8s period with a secondary swell of 1.6m and 8s. Another secondary swell of 0.7m and 8s is also forecast. 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 2.3m 9s and forecast to arrive on Thursday (Aug 27) 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 0.6m 4s period and expected on Friday (Aug 28) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Thu 27th Aug) | 6ft (1.9m) 8s |
| Best Surf | 4AM (Thu 27th Aug) | 6ft (1.9m) 8s |
| Most Powerful | 10AM (Thu 27th Aug) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s have a look at what’s coming for Shark Island (Cronulla). This reef setup needs the right window, and the next couple of weeks are a mixed bag, but there are a couple of sessions worth paddling out for if you nail the timing.
We start on Wednesday the 26th of August with a poor showing – 5ft of short-interval south swell, but a cross-off wind and weak energy mean it’s just not worth it. Water temp is 63°, pretty normal for this time of year.
Thursday the 27th stays marginal – 7ft south swell in the morning with cross-off winds and moderate energy, then drops to 5ft in the afternoon with cross wind. Not clicking.
Friday the 28th of August morning is the standout. We’ve got 5ft of clean SSE groundswell with a period of 11 seconds, offshore wind from the SW at 6 mph, and moderate energy. That offshore breeze will have the reef looking glassy and lined up. Crowds are possible here when it’s good – get in early.
Saturday the 29th still holds promise in the morning with 6ft SSE swell and gentle cross-off wind, plus solid energy. Afternoon drops off.
From Sunday the 30th through to Thursday the 10th of September, it’s mostly poor or marginal. Swell drops below 3ft for many days, with onshore winds or light cross-off conditions that don’t bring enough juice. There’s a long gap here – nearly two weeks of very little to get excited about. On Thursday the 3rd of September there’s a weird 2ft south swell with a very long 20-second period – that long period might offer a couple of stray bombs at the reef, but the size is tiny.
Friday the 4th of September afternoon is a brief bright spot – glassy with 2ft south groundswell, 14-second period, but low energy. Surfable but very ordinary.
Monday the 7th of September morning brings a big pulse – 7ft south swell with fresh offshore wind from the WSW at 19 mph and very strong energy. Period is 11 seconds – proper groundswell. This is for experts only – that size on a reef with that push is not for beginners. The offshore wind keeps it clean, but the shape will be heavy.
Thursday the 10th of September morning offers one last chance – 5ft south swell, light offshore wind, and moderate energy. A good session for a solid intermediate.
Overall, the best on offer is Friday the 28th of August morning for clean, fun-sized groundswell, and Monday the 7th of September morning for the big-wave crew. Everything else is a waiting game.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Very mild (max 16°C on Sat morning, min 11°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Tue afternoon, min 12°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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 9 | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | S 9 | SE 10 | SE 10 | S 9 | S 9 | S 9 | S 17 | SSE 9 | S 9 | S 12 | S 11 | S 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 323 | 803 | 340 | 220 | 572 | 425 | 292 | 343 | 286 | 139 | 123 | 123 | 150 | 151 | 138 | 106 | 174 | 114 | 75 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | off | cross-off | cross-off | off | cross-on | cross-off | cross-off | cross | off | cross | on | cross-on | cross | cross | cross |
High Tide | 7:47AM1.16m | 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 | |||||||
Low Tide | 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 | 4:12PM0.26m | 4:27AM0.19m | 5:02PM0.29m | |||||||
 |  |  |  | |  |  | | | | | | | | | | | | | |
 | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — |
 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — |
mm | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 14 | 15 | 15 | 15 | 16 | 15 | 14 | 17 | 15 | 15 | 17 | 16 | 15 | 23 | 25 | 20 |
Feels °C | 11 | 12 | 11 | 13 | 11 | 10 | 12 | 15 | 13 | 14 | 15 | 12 | 15 | 15 | 13 | 13 | 19 | 22 | 17 |
Swell 1 Height (m) Direction Period (s) | SSE 8 | S 9 | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SE 10 | SE 10 | S 9 | S 9 | S 9 | S 8 | SSE 9 | S 9 | S 12 | S 11 | S 10 |
| kJ | 226 | 650 | 340 | 220 | 572 | 425 | 292 | 333 | 286 | 139 | 123 | 123 | 150 | 108 | 138 | 106 | 174 | 114 | 75 |
Swell 2 Height (m) Direction Period (s) | NE 8 | ENE 8 | ENE 8 | SSE 13 | ENE 8 | ENE 8 | ENE 8 | S 9 | S 8 | S 8 | SE 10 | SE 9 | ENE 8 | S 17 | S 16 | SSE 15 | ENE 11 | ENE 11 | ENE 6 |
| kJ | 69 | 42 | 35 | 189 | 26 | 26 | 24 | 219 | 107 | 112 | 94 | 37 | 14 | 151 | 134 | 75 | 23 | 39 | 22 |
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 | ENE 9 | SSE 16 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | N 12 | ENE 10 |
| kJ | — | 18 | 41 | 44 | 101 | 2 | 19 | 29 | 28 | 31 | 25 | 25 | 51 | 17 | 16 | 15 | 7 | 3 | 34 |
Wind waves Height (m) Direction Period (s) | S 8 | S 9 | — | — | — | S 4 | — | S 9 | — | — | — | ESE 3 | — | — | NE 3 | NE 3 | — | NE 5 | — |
| kJ | 323 | 803 | — | — | — | 10 | — | 343 | — | — | — | 3 | — | — | 2 | 3 | — | 17 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 29 | 0 | 43 | 0 | 0 | 82 | 0 | 0 | 95 | 0 | 0 | 60 | 0 | 1 | 60 | 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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