Surf Forecasts:
Shark Island (Cronulla) surf forecast from 22 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 10PM (local time) - 5ft (1.6m), 8s period, SSE swell with cross-offshore winds.
- Most powerful swell: Saturday 29 Aug, 7AM (local time) - 6ft (1.9m), 9s period, SSE swell with 579 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 4AM (local time) - 3ft (0.9m), 8s period with NE 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 Wednesday (Aug 26) at 4AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.3m and 9s. Another secondary swell of 0.4m and 3s 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 1.9m 9s and forecast to arrive on Saturday (Aug 29) 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 1.2m 6s period and expected on Wednesday (Aug 26) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 26th Aug) | 3ft (0.9m) 8s |
| Best Surf | 10PM (Wed 26th Aug) | 5ft (1.6m) 8s |
| Most Powerful | 7AM (Sat 29th Aug) | 6ft (1.9m) 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 the surf outlook for Shark Island (Cronulla). It's a bit of a mixed bag over the next couple of weeks, so we'll have to pick our moments.
The water temperature is sitting at 62°F, which is a bit colder than normal for this time of year, so you might want an extra mil.
We're starting off with a pretty flat spell. Sunday the 23rd and Monday the 24th are a write-off—poor surf conditions with small, messy swell and onshore winds. Looking at the combined energy, it's weak, around 256 (Sunday morning) down to 116 (Monday afternoon), so don't bother.
Tuesday the 25th and Wednesday the 26th are still no good. The swell is tiny and short period, with light rain and onshore winds. The combined energy stays low, under 162, so you're just looking at chop.
Then we get a bit of a tease on Thursday the 27th morning. The wind goes glassy, dead calm, with a 5ft S swell at 9 seconds. That's a moderate energy pulse at 505, and it's clean. Could be a nice little window if you're keen, but it's not a standout. The afternoon turns onshore and rubbish again.
Friday the 28th morning has a little 2ft SSE swell with a clean offshore wind, but it's tiny. The afternoon gets messy with a cross-shore.
Saturday the 29th morning is a no-go—6ft S swell at 9 seconds, but it's cross-shore and choppy. The afternoon, however, shows a bit of promise. A 4ft S swell with a light WSW offshore wind, combined energy at 330, and it's clean. That's a good, clean session on offer.
Sunday the 30th is where things get interesting. The morning has a solid 6ft S swell at 10 seconds, with a clean cross-offshore wind and strong combined energy of 1013. The afternoon pumps up to a 7ft S swell at 10 seconds, with combined energy of 1867 (very strong). The wind is a gentle cross-shore, so it'll have a slight chop, but this is a lot of power. This is the standout period. For a reef break like Shark Island, that long-period S swell will wrap in nicely, and at 7ft, it's expert territory. Keep an eye on the tide.
Monday the 31st goes back to onshore junk, and Tuesday the 1st of September morning is clean but small. The afternoon of Tuesday the 1st has a 3ft SSE swell at 12 seconds with a light offshore wind—clean, but small. That's a longer period groundswell, which will offer some good shape but with long lulls.
After that, it's a long, flat run. From Wednesday the 2nd of September right through to the end of the forecast on Monday the 7th of September, everything is under 3ft with weak combined energy, mostly under 142. The winds are onshore or cross-shore, so it's just not worth paddling out.
So, your best bet: Sunday the 30th. The morning is solid, but the afternoon is the real standout with a 7ft south swell, very strong energy, and manageable wind. It's an expert-only wave at that size at Shark Island, but it's going to be a good one. If that's too big, the Saturday the 29th afternoon offers a clean 4ft south swell with offshore wind.
Stay safe, and I'll see you in the water.
Rusty
Short Range ForecastLight rain (total 6mm), mostly falling on Tue afternoon. Very mild (max 19°C on Mon morning, min 13°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Wed morning. Very mild (max 16°C on Wed morning, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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 13 | S 10 | S 10 | S 10 | NE 6 | ENE 6 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | S 8 | S 9 | S 9 | S 10 | SSE 11 | SSE 11 | SSE 10 | SSE 9 | S 8 | S 9 |
Wave Graph | |||||||||||||||||||||
220 | 161 | 202 | 118 | 65 | 219 | 74 | 114 | 98 | 78 | 78 | 367 | 431 | 257 | 284 | 98 | 343 | 223 | 540 | 152 | 162 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross-on | cross-on | on | cross-on | cross | cross-on | cross | cross-off | cross-off | cross-off | glassy | on | cross-off | off | cross | cross-off | cross | off | cross-off |
High Tide | 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 | 8:55AM1.31m | 8:57PM1.53m | ||||||||
Low Tide | 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 | 2:45PM0.26m | 3:21AM0.12m | |||||||
6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | |
— | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | |
mm | — | — | — | — | — | — | — | 4 | 2 | 1 | — | 1 | — | — | — | — | — | 2 | — | — | — |
Temp °C | 15 | 17 | 16 | 19 | 18 | 17 | 18 | 17 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 16 | 16 | 15 | 19 | 21 | 14 |
Feels °C | 13 | 13 | 13 | 16 | 14 | 14 | 15 | 14 | 14 | 12 | 13 | 13 | 14 | 13 | 14 | 12 | 12 | 12 | 15 | 17 | 9 |
Swell 1 Height (m) Direction Period (s) | S 9 | SSE 8 | S 10 | S 10 | S 10 | ENE 6 | ENE 6 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | S 8 | S 9 | S 9 | S 10 | S 8 | SSE 11 | SSE 10 | SSE 9 | S 8 | S 9 |
220 | 133 | 202 | 118 | 65 | 106 | 74 | 114 | 98 | 78 | 78 | 367 | 431 | 257 | 284 | 91 | 343 | 223 | 540 | 152 | 162 | |
Swell 2 Height (m) Direction Period (s) | NE 6 | S 13 | NE 5 | NE 5 | S 17 | S 10 | S 9 | S 9 | S 9 | S 11 | S 11 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | SSE 11 | ENE 8 | ENE 8 | ENE 8 | SSE 9 | SE 9 |
9 | 161 | 23 | 29 | 6 | 46 | 27 | 27 | 13 | 9 | 9 | 52 | 55 | 43 | 68 | 98 | 44 | 26 | 26 | 148 | 86 | |
Swell 3 Height (m) Direction Period (s) | SSE 17 | — | ENE 9 | ENE 8 | E 13 | S 18 | S 16 | S 16 | S 16 | S 15 | — | — | S 16 | SSE 14 | S 14 | ENE 8 | SSW 13 | SSW 11 | ENE 8 | ENE 9 | ENE 9 |
27 | — | 7 | 6 | 3 | 6 | 19 | 19 | 21 | 5 | — | — | 19 | 20 | 37 | 46 | 56 | 38 | 43 | 30 | 32 | |
Wind waves Height (m) Direction Period (s) | — | NE 9 | NE 5 | NE 5 | ENE 5 | NE 6 | — | N 3 | NNW 3 | SSW 3 | S 6 | — | — | — | — | — | — | — | — | — | — |
— | 20 | 58 | 60 | 42 | 219 | — | 2 | 2 | 4 | 91 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 5 | 1 | 1 | 137 | 1 | 1 | 23 | 1 | 0 | 29 | 0 | 0 | 60 | 0 | 0 | 46 | 0 | 1 | 0 | 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.











