Surf Forecasts:
Shark Island (Cronulla) surf forecast from 22 Aug 2026:
- Best quality surf: Sunday 23 Aug, 4AM (local time) - 3.5ft (1.1m), 11s period, S swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 7AM (local time) - 4.5ft (1.4m), 12s period, S swell with 546 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 3.5ft (1.1m), 11s 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 Sunday (Aug 23) at 4AM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 0.4m and 6s. 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 1.4m 12s and forecast to arrive on Friday (Aug 28) 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 1.1m 6s period and expected on Wednesday (Aug 26) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 23rd Aug) | 3.5ft (1.1m) 11s |
| Best Surf | 4AM (Sun 23rd Aug) | 3.5ft (1.1m) 11s |
| Most Powerful | 7AM (Fri 28th Aug) | 4.5ft (1.4m) 12s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what’s coming up for our little corner of the world over the next couple of weeks. It’s a bit of a mixed bag, so let’s break it down.
We’ve got a bit of a slow start, with the first few days being pretty rough. Sunday the 23rd and Monday the 24th are a write-off with poor surf conditions. The wind is all wrong – onshore and cross-onshore, making a mess of things. Tuesday the 25th is no better, still cross-onshore and choppy. It’s not until Wednesday morning the 26th that we finally see a glimmer of hope. A light offshore wind from the SW is blowing, cleaning things up for a session at Shark Island (Cronulla). It’s not big, with swell around 3ft from the ENE, and the wave energy is weak (111), but it’s clean. Still, it’s just “surfable” at best.
Now, Thursday morning the 27th is where things start to look interesting. The wind goes glassy, absolutely dead calm, and the swell picks up to 4ft from the S with a moderate 10-second period. The combined energy is moderate (373), and the conditions are described as “good surf.” This is a real window of opportunity if you can get out there early.
Friday the 28th morning looks like another good one. Clean, cross-off wind from the WSW, a 5ft S swell with a longer 11-second period, and energy is strong (537). This is shaping up to be a proper session. The afternoon drops off a bit as the wind picks up, but the morning is the pick.
The weekend is a bit of a letdown. Saturday the 29th is small and messy, and Sunday the 30th is average at best with cross winds and mediocre conditions.
Looking into the second week, Monday the 31st has a weird one. A very long period swell from the SSE, 18 seconds, with huge energy (776), but the swell height is only 3ft. That long period at a reef break like Shark Island could produce some lovely, lines if the tide works out. The morning has light cross-shore wind. It’s a bit of a gamble, but worth a look.
Then we hit a proper standout. Tuesday the 1st of September morning is a beauty. Clean offshore wind from the WNW, a solid 3ft S swell with a nice 13-second period, and energy is strong (360). The afternoon stays clean with offshore winds. This is the best on offer – a proper winter gem.
The rest of that week fades out. Wednesday and Thursday are small and weak, with energy dropping right off. Then we get another late-week surprise. Friday the 4th of September morning sees a moderate offshore wind from the WSW, a 4ft S swell with an 11-second period, and strong energy (457). That’s a solid, clean morning session. The afternoon gets ruined by a strong cross-onshore.
The final weekend is a bit of a dud, with onshore winds and small, weak swell. Monday the 7th finishes the run with a glassy morning, but the swell is tiny at 2ft.
The standout pick for the whole period is Tuesday morning, the 1st of September. Clean offshore wind, a solid 3ft S swell with good period, and plenty of energy. If you can only get one session in, that’s the one.
Right, that’s how I see it. Stay wet.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Tue afternoon. Warm (max 21°C on Tue morning, min 13°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Wed morning. Very mild (max 16°C on Tue night, min 13°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 12 | S 9 | S 13 | S 10 | S 10 | S 10 | NE 6 | ENE 6 | NE 7 | NE 8 | ENE 8 | ENE 8 | S 9 | S 10 | S 9 | S 10 | S 11 | S 10 | S 10 |
Wave Graph | |||||||||||||||||||
25 | 220 | 161 | 164 | 118 | 89 | 161 | 60 | 200 | 129 | 106 | 80 | 356 | 314 | 251 | 230 | 476 | 314 | 151 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | off | cross-off | cross-off | glassy | on | cross | cross-off | cross-off | cross-off |
High Tide | 5:01AM0.89m | 5:01PM1.35m | 5:53AM0.95m | 5:50PM1.41m | 6:35AM1.01m | 6:31PM1.48m | 7:12AM1.09m | 7:09PM1.53m | 7:47AM1.16m | 7:45PM1.56m | 8:21AM1.24m | 8:21PM1.56m | |||||||
Low Tide | 11:13PM0.45m | 10:15AM0.55m | 00:02AM0.38m | 11:12AM0.51m | 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 | ||||||
— | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | |
— | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | |
mm | — | — | — | — | — | — | — | — | 3 | 1 | 4 | — | 2 | — | — | — | — | — | 1 |
Temp °C | 16 | 16 | 17 | 16 | 18 | 18 | 17 | 21 | 18 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 16 | 15 | 16 |
Feels °C | 15 | 14 | 13 | 13 | 14 | 14 | 15 | 18 | 16 | 14 | 14 | 12 | 13 | 14 | 12 | 15 | 12 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 9 | SSE 8 | S 10 | S 10 | S 10 | ENE 6 | ENE 6 | ENE 7 | NE 8 | ENE 8 | ENE 8 | S 9 | S 10 | S 9 | S 10 | S 11 | S 10 | S 10 |
25 | 220 | 104 | 164 | 118 | 89 | 77 | 60 | 108 | 129 | 106 | 80 | 356 | 314 | 251 | 230 | 476 | 314 | 151 | |
Swell 2 Height (m) Direction Period (s) | NE 6 | NE 6 | S 13 | ENE 9 | NE 5 | S 18 | S 10 | S 9 | S 9 | S 9 | S 16 | S 11 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 |
6 | 9 | 161 | 7 | 28 | 6 | 46 | 27 | 26 | 14 | 5 | 2 | 69 | 54 | 56 | 88 | 61 | 45 | 37 | |
Swell 3 Height (m) Direction Period (s) | S 5 | SSE 17 | — | E 14 | ENE 8 | — | ENE 10 | ENE 9 | S 16 | S 16 | — | — | — | S 16 | SSE 14 | SSE 13 | — | — | E 4 |
2 | 27 | — | 4 | 6 | — | 9 | 17 | 19 | 21 | — | — | — | 5 | 21 | 184 | — | — | 5 | |
Wind waves Height (m) Direction Period (s) | ESE 3 | — | NE 9 | NE 5 | NE 5 | ENE 5 | NE 6 | — | NE 7 | NW 3 | S 3 | S 6 | — | — | — | — | — | — | ENE 4 |
2 | — | 20 | 25 | 51 | 40 | 161 | — | 200 | 2 | 5 | 77 | — | — | — | — | — | — | 8 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 15 | 1 | 5 | 1 | 1 | 137 | 1 | 15 | 1 | 1 | 0 | 40 | 0 | 0 | 60 | 1 | 0 | 175 | 0 |
Best forecast wave conditions in Sydney South Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











