Surf Forecasts:
Shark Island (Cronulla) surf forecast from 22 Aug 2026:
- Best quality surf: Sunday 23 Aug, 4AM (local time) - 2.5ft (0.8m), 11s period, S swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 7AM (local time) - 4ft (1.2m), 10s period, S swell with 313 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 2.5ft (0.8m), 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 0.8m and 11s period with a secondary swell of 0.4m and 4s. 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 1.2m 10s and forecast to arrive on Sunday (Aug 23) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Wednesday (Aug 26) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 23rd Aug) | 2.5ft (0.8m) 11s |
| Best Surf | 4AM (Sun 23rd Aug) | 2.5ft (0.8m) 11s |
| Most Powerful | 7AM (Sun 23rd Aug) | 4ft (1.2m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
G’day, Rusty here, lookin’ at the next couple of weeks for Shark Island (Cronulla). Honestly, it’s a bit of a slow start, but there’s a couple of moments that’ll get the blood pumpin’. The water temp is sittin’ around 62°, which is just a touch cooler than usual for this time of year – nothin’ too wild, but you’ll want the rubber on.
First real whisper of somethin’ decent comes on the morning of Sunday the 23rd. We’ve got a 4ft swell from the south with a period of 9 seconds, and the combined energy’s sittin’ at 243 (moderate). The wind’s a light WNW cross-off, so it’ll be clean, but conditions are ordinary – just surfable. It’s not gonna light your world on fire, but it’s a start.
Things stay pretty flat and average through the week. Monday the 24th through Friday the 28th is mostly small, choppy, or blown-out junk. The morning of Wednesday the 26th might look clean with a SSW cross-off, but that swell’s only 3ft from the ENE with a short 8-second period – combined energy is 117 (weak). You’d be paddlin’ for not much.
Now, the first real standout is shapin’ up for the morning of Sunday the 30th of August. This is where it gets interestin’. We’ve got a 3ft southerly swell with a 9-second period, but the combined energy jumps to 285 (moderate). The wind is a light S at 3 mph – glassy offshore stuff. That’ll be clean and the reef should handle that south swell nicely. This is the best bet in the first week. Expect good surf conditions. It’s not huge, but for Shark Island, that offshore bump and clean lines will have you smilin’.
After that, the middle of the week goes quiet again – Monday the 31st has a bit of ENE energy but with onshore NNE winds, so it’s a no-go.
Looking into the second week, the morning of Tuesday the 1st of September is worth a mention. It’s smaller – 2ft from the south with a 10-second period and combined energy of 146 (moderate) – but the wind is a gentle offshore from the SW at 9 mph. Clean as a whistle, but small. Fun for a log or a fish, not much else.
Then on Thursday the 3rd of September, the afternoon session looks promisin’. A 4ft southerly swell with an 11-second period and combined energy of 398 (moderate to strong). The wind is a fresh WSW offshore at 19 mph. That’s a proper howl offshore, and while it’s a bit of a battle paddlin’ out, the reef should be shapin’ up some nice ones. The forecast quality is marginal, so keep a weather eye, but this could be the pick of the second week if it comes together.
The rest of the run into the 6th of September is small and mostly clean but weak – nothin’ to write home about.
So overall, the standout is definitely Sunday the 30th of August morning – that clean south swell with light wind is your best shot. Thursday the 3rd of September afternoon is the long-range one to watch.
Stay frothy,
Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Very mild (max 19°C on Sat morning, min 13°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Tue afternoon. Warm (max 21°C on Tue morning, min 13°C on Thu night). Winds decreasing (fresh winds from the SSW on Wed afternoon, calm by Thu night). | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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 | NE 6 | S 12 | S 9 | S 13 | S 10 | S 10 | S 10 | S 10 | ENE 6 | ENE 6 | NE 7 | ENE 8 | ENE 8 | S 6 | S 7 | S 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph | |||||||||||||||||||||
6 | 6 | 25 | 181 | 202 | 198 | 118 | 92 | 66 | 42 | 52 | 218 | 103 | 114 | 132 | 135 | 94 | 80 | 80 | 76 | 82 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-off | on | cross | cross-on | on | cross | cross-on | on | cross-on | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | glassy | off |
High Tide | 4:04PM1.30m | 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 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | |
— | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | |
mm | — | — | 2 | — | — | — | — | — | — | — | 3 | 4 | 2 | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 16 | 16 | 17 | 15 | 18 | 17 | 17 | 21 | 19 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 20 | 21 | 16 |
Feels °C | 15 | 15 | 15 | 14 | 13 | 12 | 15 | 13 | 16 | 18 | 18 | 13 | 12 | 11 | 10 | 13 | 14 | 15 | 18 | 20 | 13 |
Swell 1 Height (m) Direction Period (s) | NE 6 | NE 6 | NE 6 | S 9 | SSE 8 | S 10 | S 10 | S 10 | ENE 6 | ENE 6 | ENE 6 | NE 7 | ENE 8 | ENE 8 | ENE 8 | S 7 | S 7 | SSE 7 | ENE 8 | ENE 8 | ENE 8 |
6 | 6 | 6 | 181 | 99 | 198 | 118 | 92 | 63 | 42 | 52 | 119 | 103 | 114 | 78 | 135 | 94 | 79 | 80 | 76 | 82 | |
Swell 2 Height (m) Direction Period (s) | S 6 | S 8 | S 12 | NE 6 | S 13 | ENE 4 | ENE 5 | S 19 | S 10 | S 9 | S 9 | S 8 | S 11 | S 11 | S 11 | ENE 8 | ENE 8 | ENE 8 | SSE 7 | S 7 | S 18 |
3 | 5 | 25 | 9 | 202 | 12 | 15 | 7 | 66 | 41 | 25 | 13 | 9 | 9 | 9 | 73 | 78 | 80 | 55 | 48 | 6 | |
Swell 3 Height (m) Direction Period (s) | S 9 | S 6 | S 5 | SSE 16 | NE 9 | ENE 9 | ENE 8 | — | ENE 10 | NE 9 | NE 9 | S 16 | S 16 | S 15 | — | — | S 15 | S 14 | S 13 | S 12 | S 18 |
6 | 2 | 2 | 53 | 12 | 7 | 6 | — | 9 | 21 | 21 | 21 | 5 | 5 | — | — | 4 | 14 | 28 | 12 | 6 | |
Wind waves Height (m) Direction Period (s) | WSW 2 | SE 2 | ESE 3 | — | — | NE 4 | NE 5 | ENE 5 | — | — | — | NE 7 | — | S 3 | S 6 | — | — | — | NNW 2 | — | S 7 |
1 | 1 | 2 | — | — | 25 | 31 | 37 | — | — | — | 218 | — | 6 | 132 | — | — | — | 1 | — | 56 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 226 | 282 | 15 | 0 | 5 | 1 | 1 | 5 | 1 | 1 | 7 | 16 | 0 | 43 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
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.











