
Surf Forecasts:
Shark Island (Cronulla) surf forecast from 9 Aug 2026:
- Best quality surf: Thursday 13 Aug, 7AM (local time) - 6ft (1.9m), 7s period, S swell with offshore winds.
- Most powerful swell: Monday 10 Aug, 4AM (local time) - 7ft (2.1m), 8s period, NE swell with 505 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 1PM (local time) - 2.5ft (0.7m), 9s period with ENE 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 Tuesday (Aug 11) at 1PM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.5m and 6s. 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 2.1m 8s and forecast to arrive on Monday (Aug 10) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Monday (Aug 10) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Tue 11th Aug) | 2.5ft (0.7m) 9s |
| Best Surf | 7AM (Thu 13th Aug) | 6ft (1.9m) 7s |
| Most Powerful | 4AM (Mon 10th Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
G’day, Rusty here. Got to level with you – the next week or so is looking pretty grim for Shark Island (Cronulla). It’s a real slow start, with nothing worth paddling out for. The water’s sitting at 61°, which is a bit cooler than we’d usually expect for this time of year.
The first few days are a write-off. Sunday the 9th is small with weak, choppy cross-on wind, and Monday the 10th gets messy with strong cross-shore wind and a chunky 6ft swell that’s all chop. Not even worth a look.
Tuesday morning the 11th stays tiny at 2ft, but the wind swings offshore. It’s clean, but there’s just no oomph. Then Tuesday afternoon things get interesting – the wind goes glassy, the swell bumps to 3ft from the south with an 11-second period and combined energy of 228, which is moderate. It’s surfable, but ordinary.
Wednesday the 12th stays clean with gentle offshore winds, but the swell drops back to 2ft. Nice to look at, but you’ll be fighting for scraps.
Now, Thursday the 13th is where it finally turns on. Morning has a clean 5ft south swell with a short 8-second period and combined energy of 379. The wind is a light offshore from the SSW, so it’ll be clean and punchy. This is the first real standout – the set waves will have some push, and it’s an advanced reef break, so only for those who know what they’re doing. Afternoon sees the swell jump to 6ft, but the wind turns cross-off and it gets a bit messier, though still clean overall.
Friday the 14th drops back to a modest 4ft with a short period. It’s clean in the morning, but nothing special.
Then we hit a stretch of poor conditions from Saturday the 15th right through to Monday the 17th. On Sunday the 16th there’s a weird 1ft swell with an 18-second period coming from the SSE – that’s a very long period groundswell, combined energy only 133, so it’s weak. With a cross-onshore wind, it won’t do anything good here.
Tuesday the 18th is another highlight. Morning brings a 5ft swell from the ESE with a 10-second period and solid combined energy of 512. Light cross-off wind, clean conditions. This one has real grunt, and the direction matches the optimum for this break. It’s a good call for experienced surfers.
Wednesday the 19th morning is also worth a mention – 5ft from the ESE again, 10-second period, combined energy of 432, glassy with near-still air. Clean and punchy.
The real standout, and the best of the whole outlook, is Saturday the 22nd. Morning has a 7ft swell from the NE with a short 7-second period, but the combined energy is 707, which is strong. The wind is a gentle cross-off from the south, keeping it clean. That’s a lot of power, so this is strictly for experts. Afternoon is still good at 6ft with clean conditions.
Sunday the 23rd morning goes glassy again with a 4ft ENE swell – nice for an easy session, but not a stand out.
Overall, the picks are Thursday the 13th morning, Tuesday the 18th morning, and Saturday the 22nd morning. The 22nd is the one with the most size and energy, but it’s only for the brave. Crowds can pop up here sometimes, so get in early.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Sun night. Very mild (max 18°C on Tue morning, min 11°C on Tue night). Winds decreasing (strong winds from the NW on Mon morning, calm by Tue afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Fri night. Very mild (max 19°C on Wed afternoon, min 11°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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 | ENE 9 | NE 6 | ENE 9 | NE 9 | NE 10 | ENE 9 | S 11 | S 8 | S 10 | S 9 | ENE 9 | S 8 | S 9 | S 8 | S 7 | S 7 | SSE 7 | S 6 | SSE 8 | S 7 |
Wave Graph | |||||||||||||||||||||
115 | 119 | 216 | 475 | 353 | 131 | 76 | 155 | 64 | 125 | 80 | 48 | 324 | 470 | 164 | 159 | 200 | 93 | 167 | 375 | 179 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | glassy | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross |
High Tide | 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 | 10:05AM1.35m | 10:09PM1.54m | ||||||||
Low Tide | 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 | 3:57PM0.23m | ||||||||
6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | |
— | 5:20 | — | — | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | |
mm | — | 2 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | 7 |
Temp °C | 17 | 17 | 16 | 16 | 14 | 14 | 18 | 18 | 11 | 18 | 19 | 12 | 16 | 15 | 14 | 15 | 16 | 15 | 15 | 15 | 15 |
Feels °C | 13 | 12 | 9 | 6 | 7 | 7 | 14 | 16 | 5 | 15 | 14 | 8 | 12 | 10 | 10 | 13 | 13 | 12 | 9 | 9 | 11 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | E 14 | ENE 9 | NE 9 | NE 10 | ENE 9 | S 11 | S 8 | S 10 | S 9 | ENE 9 | S 8 | S 8 | S 8 | S 7 | S 7 | SSE 7 | ENE 9 | ENE 10 | SSE 7 |
115 | 119 | 16 | 475 | 353 | 131 | 76 | 155 | 64 | 125 | 80 | 48 | 324 | 317 | 164 | 159 | 127 | 93 | 17 | 18 | 135 | |
Swell 2 Height (m) Direction Period (s) | NE 4 | SSE 8 | SE 8 | S 13 | S 13 | E 13 | SSW 6 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 8 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | S 14 | S 18 | ENE 10 |
2 | 6 | 3 | 3 | 3 | 3 | 24 | 73 | 46 | 47 | 50 | 34 | 50 | 29 | 29 | 18 | 18 | 17 | 4 | 7 | 18 | |
Swell 3 Height (m) Direction Period (s) | S 5 | S 5 | S 7 | — | — | S 12 | — | NE 8 | S 11 | S 15 | S 14 | S 13 | S 16 | — | S 17 | S 14 | S 19 | S 15 | S 18 | — | S 18 |
2 | 2 | 1 | — | — | 3 | — | 17 | 57 | 4 | 4 | 3 | 5 | — | 6 | 4 | 7 | 4 | 7 | — | 25 | |
Wind waves Height (m) Direction Period (s) | — | NE 4 | NE 6 | NNW 4 | NNW 5 | WNW 4 | SW 6 | — | W 3 | NNW 2 | — | SW 4 | — | S 9 | — | — | S 7 | — | S 6 | SSE 8 | S 7 |
— | 9 | 216 | 30 | 74 | 20 | 76 | — | 3 | 1 | — | 17 | — | 470 | — | — | 200 | — | 167 | 375 | 179 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 15 | 472 | 73 | 137 | 208 | 18 | 0 | 0 | 1 | 0 | 29 | 0 | 40 | 1 | 0 | 43 | 0 | 95 | 95 | 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.











