
Surf Forecasts:
Shark Island (Cronulla) surf forecast from 8 Aug 2026:
- Best quality surf: Thursday 13 Aug, 4PM (local time) - 6ft (1.9m), 11s period, S swell with glassy winds.
- Most powerful swell: Thursday 13 Aug, 4PM (local time) - 6ft (1.9m), 11s period, S swell with 813 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 10AM (local time) - 4.5ft (1.4m), 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 13) at 10AM. The primary swell is predicted to be 1.4m and 8s period with a secondary swell of 0.3m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Shark Island (Cronulla) in the next 16 days are 1.9m 11s and forecast to arrive on Thursday (Aug 13) at 4PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Thursday (Aug 13) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Thu 13th Aug) | 4.5ft (1.4m) 8s |
| Best Surf | 4PM (Thu 13th Aug) | 6ft (1.9m) 11s |
| Most Powerful | 4PM (Thu 13th Aug) | 6ft (1.9m) 11s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Alright, mate, Rusty here. Let’s have a look at the next couple of weeks for this stretch of coast.
Straight up, the next few days are a write-off. We’ve got a run of poor surf through Saturday, Sunday, and into Monday. There’s some swell around on Monday, but the wind is going to be howling cross-shore, making a mess of things. You’re looking at a few days of chop and lumpy conditions, not worth paddling out for. We’ll see the energy drop off a bit after that, with Tuesday and Wednesday offering just small, weak surf and more average wind.
The first real glimmer of hope shows up on Thursday the 13th. That’s when things start to come together. The swell builds to a solid 6ft from the south, and the wind swings offshore in the morning before going glassy in the afternoon. That’s the window you want. The energy is strong too, hitting 838 in the afternoon, which is a big jump from the doldrums.
That Thursday afternoon at Shark Island (Cronulla) is the standout of this whole run. Glassy conditions with a solid S swell at 6ft and an 11-second period, which is proper groundswell. It’s a reef break, advanced only, and with that size, it’s not for the faint of heart. For the crew who know what they're doing, this is as good as it gets. It’s a fairly consistent spot, so you should get sets, but it’s also a spot where crowds are sometimes a thing, so you might have to fight for a wave.
The next day, Friday the 14th, is still decent in the morning with a clean 4ft of S swell, but the wind swings onshore in the afternoon and kills it.
After that, it drops back into a bit of a lull. The weekend and the start of the following week look pretty average, with small waves and mostly cross or onshore winds. Not much to get excited about.
There is a bit of a promising sign for the following Sunday, the 23rd. The swell builds back up to 4ft from the ENE with a longer 11-second period, and if the glassy morning wind holds, it could be a clean session. But that's a long way out, so treat that one as promising but not locked in. The energy is moderate, with a 433 reading, and it’s a better option than the onshore wind that comes in during the afternoon.
So, to sum it up: it’s a slow start, but Thursday the 13th looks like the clear winner. The Sunday the 23rd is a potential backup, but it’s a long way off and less certain. The water is running a bit colder than normal at 61°F when we finally get some waves, so bring the extra rubber.
Stay patient, and be ready for Thursday.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Sun afternoon. Very mild (max 18°C on Sun afternoon, min 10°C on Sat night). Winds increasing (light winds from the NNW on Sat night, strong winds from the NW by Mon morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Wed morning, min 11°C on Wed night). Winds decreasing (fresh winds from the WSW on Wed night, calm by Thu afternoon). | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 8 | E 8 | ENE 9 | ENE 9 | NE 6 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 12 | S 10 | S 10 | S 9 | S 8 | S 11 | S 8 | S 11 | S 10 | S 8 |
Wave Graph | ||||||||||||||||||||
28 | 63 | 115 | 119 | 311 | 548 | 404 | 154 | 75 | 73 | 175 | 35 | 87 | 39 | 271 | 813 | 163 | 317 | 194 | 114 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | on | cross | cross | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | off | glassy | cross-off | cross-off | cross-on | off |
High Tide | 4:10PM1.52m | 5:03AM1.01m | 5:14PM1.61m | 6:09AM1.06m | 6:13PM1.70m | 7:05AM1.13m | 7:06PM1.77m | 7:55AM1.20m | 7:55PM1.79m | 8:40AM1.27m | 8:42PM1.76m | 9:23AM1.32m | 9:26PM1.67m | |||||||
Low Tide | 11:09PM0.26m | 10:31AM0.39m | 00:12AM0.15m | 11:36AM0.34m | 1:06AM0.06m | 12:34PM0.28m | 1:54AM-0.01m | 1:28PM0.23m | 2:38AM-0.03m | 2:19PM0.20m | 3:19AM-0.02m | 3:08PM0.20m | 3:57AM0.03m | |||||||
— | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | |
5:19 | — | — | 5:20 | — | — | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | |
mm | — | — | — | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 14 | 17 | 18 | 16 | 15 | 16 | 16 | 18 | 17 | 13 | 19 | 18 | 13 | 15 | 16 | 12 | 17 | 16 | 16 |
Feels °C | 12 | 11 | 13 | 13 | 9 | 5 | 6 | 10 | 12 | 11 | 9 | 12 | 12 | 5 | 12 | 13 | 7 | 14 | 11 | 15 |
Swell 1 Height (m) Direction Period (s) | S 8 | E 8 | ENE 9 | ENE 9 | E 14 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 12 | S 8 | S 10 | S 9 | S 8 | S 11 | S 8 | S 11 | S 10 | S 8 |
28 | 63 | 115 | 119 | 16 | 548 | 404 | 154 | 75 | 73 | 175 | 32 | 87 | 39 | 271 | 813 | 163 | 317 | 194 | 114 | |
Swell 2 Height (m) Direction Period (s) | SE 9 | S 6 | S 6 | SSE 8 | SE 10 | S 13 | S 13 | E 13 | SSW 7 | SSW 6 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
20 | 7 | 6 | 6 | 4 | 3 | 3 | 3 | 9 | 4 | 46 | 34 | 36 | 36 | 18 | 18 | 10 | 10 | 19 | 19 | |
Swell 3 Height (m) Direction Period (s) | E 8 | SSE 8 | SSE 8 | S 5 | S 7 | — | — | — | S 12 | — | S 11 | S 10 | — | S 13 | NE 7 | S 19 | — | S 19 | SSE 17 | S 19 |
22 | 13 | 6 | 2 | 1 | — | — | — | 3 | — | 2 | 35 | — | 3 | 2 | 7 | — | 7 | 27 | 7 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | — | NE 4 | NE 5 | NE 6 | NNW 4 | NNW 4 | NW 4 | W 3 | W 3 | WNW 3 | NNW 2 | WNW 3 | SW 4 | WSW 4 | — | WSW 3 | — | — | — |
15 | — | 4 | 8 | 311 | 29 | 54 | 15 | 6 | 5 | 3 | 1 | 6 | 41 | 7 | — | 4 | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 472 | 1 | 15 | 23 | 433 | 73 | 192 | 28 | 1 | 1 | 1 | 23 | 1 | 54 | 0 | 0 | 1 | 0 | 60 | 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.











