Surf Forecasts:
Shark Island (Cronulla) surf forecast from 27 Aug 2026:
- Best quality surf: Friday 28 Aug, 4AM (local time) - 5.5ft (1.7m), 12s 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, 10PM (local time) - 4.5ft (1.3m), 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 10PM. The primary swell is predicted to be 1.3m and 9s period with a secondary swell of 0.4m 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 1.7m 12s and forecast to arrive on Friday (Aug 28) at 4AM. 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+) | 10PM (Thu 27th Aug) | 4.5ft (1.3m) 9s |
| Best Surf | 4AM (Fri 28th Aug) | 5.5ft (1.7m) 12s |
| 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, it’s Rusty.
Look, the next couple of weeks at Shark Island (Cronulla) are a real mixed bag. We’ve got a slow start, a brief clean window, then a long flat spell, and finally a big, powerful pulse of swell that’s the main event, but it’s not for everyone.
Water temp is 63°F, which is about normal for this time of year.
We start Thursday the 27th with a small 5ft south swell, but a light cross-shore wind is making it messy. Not worth the paddle. The energy is moderate.
Friday the 28th is the pick of the first week. The morning has 5ft of south-southeast swell, but the wind swings to a light offshore from the southwest. It cleans right up, the energy jumps, and the period is a solid 11 seconds. That’s your window. It gets blown out by the afternoon, so get out there early.
Saturday the 29th is still rideable with 4-5ft, but the wind is cross-offshore. It’s okay, but not as good as Friday. Sunday the 30th drops to 3-4ft and loses its punch.
Then comes the flat spell. Monday the 31st is tiny, and from Tuesday the 1st through Saturday the 5th, it’s basically dead. Swell is under 2ft, and the energy is all but gone. That’s nearly a week of nothing. Time to wax your board and wait.
Now, the big one. Monday the 7th of September sees a proper 10ft south swell roll in, and the energy is huge. But it’s with a fresh 35 km/h offshore breeze. It’s big, powerful, and unruly. This is strictly for the experts, and even then, it’s a battle.
The true gem is Tuesday the 8th of September. The swell eases to a still-solid 8ft, but the wind drops to a glassy 5 km/h from the south-southwest. It’s clean, it’s got a massive amount of energy, and it’s perfect for the experienced crew. The direction is south, which isn’t the absolute best for this reef, but with conditions like that, it won’t matter. That’s the session to circle on the calendar.
After that, it fades fast. Wednesday the 9th is still okay, but the wind picks up again, and by Thursday the 10th it's back to small, weak leftovers.
So, your two windows are Friday morning the 28th for the clean, fun waves, and then the big, expert-only swell on Tuesday the 8th of September. That second one is a long way off, so treat it as promising but not guaranteed. It’s got a lot of potential, though.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Sun morning, min 11°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Wed morning, min 12°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SSE 10 | SSE 9 | S 9 | S 9 | S 9 | S 8 | S 9 | S 10 | S 11 | S 11 | S 11 | S 10 | S 10 | SSE 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 332 | 220 | 572 | 425 | 299 | 365 | 246 | 145 | 192 | 194 | 256 | 166 | 125 | 164 | 195 | 149 | 143 | 75 | 50 | 32 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | off | cross | on | cross-on | cross-on | cross-on | cross | cross | cross-off | 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 | 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 | — | — | 6:18 | — | — | 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 | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 16 | 15 | 14 | 17 | 17 | 15 | 22 | 24 | 20 | 27 | 27 | 22 |
Feels °C | 13 | 13 | 11 | 11 | 13 | 14 | 13 | 14 | 13 | 12 | 12 | 14 | 14 | 13 | 18 | 21 | 16 | 22 | 22 | 19 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SSE 10 | SSE 9 | S 9 | S 9 | S 9 | S 8 | S 9 | S 10 | S 11 | S 11 | S 11 | S 10 | S 10 | SSE 10 |
| kJ | 332 | 220 | 572 | 425 | 299 | 365 | 246 | 145 | 192 | 194 | 256 | 161 | 125 | 164 | 195 | 149 | 143 | 75 | 50 | 31 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | SSE 13 | ENE 8 | ENE 8 | NE 8 | S 9 | S 8 | S 8 | SE 10 | ENE 9 | SSE 17 | SSE 17 | S 16 | ENE 9 | ENE 11 | ENE 11 | ENE 6 | ENE 10 | ENE 10 | ENE 10 |
| kJ | 24 | 186 | 27 | 26 | 16 | 40 | 135 | 89 | 74 | 26 | 57 | 166 | 124 | 15 | 22 | 38 | 22 | 33 | 33 | 32 |
Swell 3 Height (m) Direction Period (s) | SSE 14 | ENE 9 | S 14 | S 11 | S 10 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | SE 9 | ENE 9 | ENE 9 | S 12 | SSE 16 | NE 4 | NE 12 | ENE 10 | NE 5 | NE 5 | NE 5 |
| kJ | 41 | 44 | 101 | 2 | 19 | 25 | 24 | 26 | 26 | 21 | 15 | 17 | 41 | 26 | 1 | 6 | 34 | 10 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | S 4 | — | — | — | — | — | — | — | — | ENE 2 | NE 4 | — | NE 5 | NW 3 | NNW 3 | NW 3 | NW 3 |
| kJ | — | — | — | 10 | — | — | — | — | — | — | — | — | 1 | 3 | — | 17 | 2 | 4 | 3 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 82 | 0 | 0 | 60 | 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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