Surf Forecasts:
Shark Island (Cronulla) surf forecast from 9 Aug 2026:
- Best quality surf: Thursday 13 Aug, 10AM (local time) - 8ft (2.4m), 9s period, S swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 1PM (local time) - 8ft (2.4m), 10s period, S swell with 1,019 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 1AM (local time) - 4ft (1.2m), 10s 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 Wednesday (Aug 12) at 1AM. The primary swell is predicted to be 1.2m and 10s period with a secondary swell of 0.5m and 9s. 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 2.4m 10s and forecast to arrive on Thursday (Aug 13) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Sunday (Aug 16) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 12th Aug) | 4ft (1.2m) 10s |
| Best Surf | 10AM (Thu 13th Aug) | 8ft (2.4m) 9s |
| Most Powerful | 1PM (Thu 13th Aug) | 8ft (2.4m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for the next couple of weeks.
Right off the bat, it's a bit of a slow start. We've got a week of mostly poor conditions ahead, with only a few flickers of hope. The real standout is shaping up to be Thursday, August 13th at Shark Island (Cronulla). That morning, we're looking at a solid 8ft S swell, with a gentle SW offshore breeze. The water is sitting at 61°, which is a bit colder than normal for this time of year, so you'll want the extra rubber. The combined swell energy is pumping at (1413), which is strong, and with that offshore wind, the place should be absolutely firing. It's an advanced reef break, so this is for the experienced crew only. That afternoon the swell drops to 7ft and the wind swings cross-off, so still good but not quite the peak of the morning.
For a couple of days after that, things settle right down. We see some small, clean waves around the 3ft to 4ft mark on Friday the 14th and Saturday the 15th, but the energy is low and the conditions are marginal at best. The wind is mostly cross or cross-off, but the swell just isn't there to make it worthwhile.
Looking further ahead, the second week is a bit of a mixed bag. A lot of days with poor surf and cross-shore winds. However, Tuesday, August 25th is another one to circle on the calendar. The morning looks very promising, with a 5ft E swell, a 13-second period, and a light offshore breeze from the SW. The combined energy is a solid (706), and the comment says to expect very good surf conditions. This is a long-period groundswell, so it'll have plenty of power and shape. It's still over a week away, so keep an eye on it, but it's the best prospect for the tail end of the outlook.
Other than those two windows, it's pretty quiet. There are long gaps of several days with no real recommendations, just small, choppy, or wind-affected slop. This is one of those periods where patience will pay off.
Stay patient, pick your windows, and I'll see you in the water.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Tue morning, min 11°C on Tue night). Winds decreasing (strong winds from the NW on Mon afternoon, light winds from the WNW by Tue night). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sat morning. Very mild (max 15°C on Thu morning, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | ENE 9 | NE 9 | NE 10 | ENE 9 | S 11 | S 10 | S 9 | S 10 | S 8 | S 9 | S 9 | S 8 | S 9 | S 8 | S 7 | SSE 7 | SSE 6 | SSE 6 | S 7 | S 7 | S 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 497 | 360 | 131 | 78 | 618 | 300 | 137 | 113 | 66 | 942 | 822 | 203 | 269 | 239 | 131 | 58 | 70 | 82 | 240 | 233 | 60 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 10:05AM1.35m | 10:09PM1.54m | 10:46AM1.37m | 10:52PM1.38m | ||||||||
Low Tide | 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 | 3:57PM0.23m | 4:34AM0.11m | 4:46PM0.29m | ||||||||
 | |  |  | | | | | | | | | | |  |  | |  | | | | |
 | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — |
 | — | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 1 | — | — | 2 | 2 |
Temp °C | 16 | 14 | 16 | 19 | 19 | 13 | 18 | 18 | 14 | 15 | 15 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
Feels °C | 6 | 5 | 10 | 13 | 13 | 8 | 14 | 11 | 7 | 10 | 10 | 10 | 12 | 12 | 13 | 12 | 9 | 10 | 10 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | NE 9 | NE 10 | ENE 9 | S 11 | S 10 | S 9 | S 10 | S 8 | S 9 | S 9 | S 8 | S 9 | S 8 | S 7 | SSE 7 | ENE 10 | SSE 6 | ESE 9 | SE 9 | S 6 |
| kJ | 497 | 360 | 131 | 78 | 618 | 300 | 137 | 113 | 66 | 435 | 619 | 203 | 269 | 239 | 131 | 58 | 9 | 82 | 8 | 19 | 60 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | E 13 | — | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 10 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | SSE 20 | ENE 10 | SE 9 | ENE 10 | ENE 10 | ENE 10 | S 11 |
| kJ | 3 | 3 | 3 | — | 49 | 48 | 50 | 52 | 49 | 31 | 29 | 18 | 18 | 17 | 82 | 18 | 3 | 9 | 10 | 11 | 37 |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 17 | NE 8 | — | — | S 14 | S 13 | S 16 | — | — | S 15 | S 19 | ENE 9 | S 15 | S 20 | ESE 7 | S 18 | S 16 | SE 8 |
| kJ | — | — | — | 6 | 18 | — | — | 4 | 3 | 5 | — | — | 5 | 30 | 17 | 17 | 8 | 5 | 25 | 20 | 14 |
Wind waves Height (m) Direction Period (s) | NNW 4 | NW 5 | WNW 4 | SW 4 | — | W 3 | NW 3 | W 2 | SW 4 | S 9 | S 9 | — | — | — | — | — | SSE 6 | — | S 7 | S 7 | ESE 5 |
| kJ | 38 | 70 | 30 | 31 | — | 5 | 2 | 1 | 23 | 942 | 822 | — | — | — | — | — | 70 | — | 240 | 233 | 23 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 85 | 87 | 143 | 29 | 1 | 0 | 1 | 29 | 29 | 0 | 40 | 0 | 0 | 0 | 0 | 29 | 95 | 0 | 32 | 62 | 73 |
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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