Surf Forecasts:
Shark Island (Cronulla) surf forecast from 7 Sep 2026:
- Best quality surf: Friday 11 Sep, 1AM (local time) - 10ft (3.0m), 10s period, SSE swell with offshore winds.
- Most powerful swell: Wednesday 9 Sep, 10PM (local time) - 13ft (4.0m), 10s period, S swell with 2,957 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 7AM (local time) - 3.5ft (1.0m), 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 Wednesday (Sep 09) at 7AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.7m and 7s. Another secondary swell of 0.3m and 2s 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 4.0m 10s and forecast to arrive on Wednesday (Sep 09) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Sep 09) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Wed 9th Sep) | 3.5ft (1.0m) 8s |
| Best Surf | 1AM (Fri 11th Sep) | 10ft (3.0m) 10s |
| Most Powerful | 10PM (Wed 9th Sep) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Alright, Rusty here, let’s talk about the next couple of weeks for Shark Island (Cronulla).
The first real chance to slide into the water is on Tuesday the 8th of September. It’s a solid 8-foot swell out of the SSE, with a cross-off breeze from the south at 16 mph in the morning that’ll keep things clean. The wave energy is pumping hard (915). For the advanced surfer, this is big and exciting – but for a beginner, 8-foot is too much. Crowds can sometimes be a thing here, so get out early.
Wednesday the 9th is a tale of two halves. The morning is small – only 3-foot of S swell with a clean offshore SSW wind at 16 mph, but the energy is weak (165). The afternoon blows up: 10-foot of short-period S windswell and a strong cross-off wind at 28 mph. The energy is huge (1379), but it’s wild and a bit raw. That big, wind-affected ocean on a reef-beach setup might be better for kite surfing than a paddle session.
Thursday the 10th and Friday the 11th hold in the 8 to 10-foot range with a longer period, clean enough cross-off winds, and energy levels well above 2000. This is expert territory – the energy is heavy. Water temperature is about normal for this time of year (18°).
Now, the real standout comes on Saturday the 19th of September. The swell drops to a more comfortable 7-foot from the SSE with a nice 11-second groundswell period. The wind is a light offshore from the SSW at 9 mph in the morning. The combined energy sits at a solid 992. This is the sweet spot – good shape, clean faces, and not too big for a solid intermediate. Crowds could be present, but with that glassy offshore wind, it’s going to be hard to stay out of the water. The swell direction matches what this reef loves.
The morning of the 18th is a close second: 12-foot of SSE groundswell, offshore wind at 16 mph, and insane energy (4001). That one is strictly for experts.
After the 19th, it drops away fast. The 20th through the 22nd is mostly small and messy, with onshore winds.
Mark that Saturday the 19th down. That’s the one you want to make happen. The later window is too uncertain to guarantee anything.
Rusty
Short Range ForecastSome drizzle, heaviest during Mon afternoon. Very mild (max 18°C on Mon afternoon, min 10°C on Tue night). Winds increasing (light winds from the SE on Tue afternoon, strong winds from the S by Wed afternoon). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Thu night. Warm (max 20°C on Sun morning, min 11°C on Fri night). Winds decreasing (fresh winds from the S on Thu afternoon, light winds from the S by Fri night). | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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) | SSE 9 | S 8 | SSE 9 | SSE 8 | S 9 | S 8 | S 8 | S 10 | S 10 | S 10 | SSE 10 | S 9 | SSE 9 | SSE 9 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | S 9 | S 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 352 | 1280 | 913 | 486 | 252 | 108 | 1350 | 2642 | 1667 | 1962 | 1470 | 1252 | 617 | 424 | 408 | 339 | 153 | 108 | 87 | 67 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross | cross | off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross | on | cross | cross-on | on | cross-on |
High Tide | 5:04PM1.56m | 6:02AM1.12m | 6:01PM1.63m | 6:50AM1.21m | 6:51PM1.66m | 7:33AM1.31m | 7:37PM1.65m | 8:13AM1.38m | 8:20PM1.59m | 8:50AM1.44m | 9:01PM1.50m | 9:27AM1.47m | 9:42PM1.38m | |||||||
Low Tide | 11:58PM0.15m | 11:33AM0.36m | 00:46AM0.08m | 12:29PM0.28m | 1:28AM0.04m | 1:19PM0.22m | 2:06AM0.04m | 2:07PM0.18m | 2:41AM0.07m | 2:53PM0.17m | 3:15AM0.13m | 3:37PM0.19m | 3:47AM0.21m | |||||||
 |  |  |  |  | | | | | |  | | | | | | | | | | |
 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — |
 | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 18 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 14 | 17 | 16 | 15 | 20 | 19 | 18 |
Feels °C | 16 | 8 | 9 | 12 | 12 | 8 | 4 | 5 | 6 | 8 | 10 | 12 | 12 | 13 | 13 | 11 | 13 | 14 | 12 | 15 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | E 10 | E 11 | SSE 8 | S 9 | S 8 | ESE 13 | ESE 11 | ESE 10 | SSE 22 | E 15 | SSE 9 | SSE 9 | SSE 9 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | S 9 | NE 6 |
| kJ | 352 | 9 | 2 | 486 | 252 | 108 | 17 | 41 | 39 | 157 | 4 | 917 | 617 | 424 | 408 | 339 | 153 | 108 | 87 | 49 |
Swell 2 Height (m) Direction Period (s) | E 10 | — | — | E 10 | SE 7 | SE 7 | E 9 | S 26 | S 23 | ESE 10 | S 22 | E 15 | E 14 | E 13 | SSE 19 | SSE 18 | ENE 4 | NE 4 | E 13 | S 10 |
| kJ | 8 | — | — | 8 | 69 | 50 | 6 | 13 | 41 | 18 | 9 | 4 | 4 | 14 | 69 | 61 | 13 | 5 | 14 | 67 |
Swell 3 Height (m) Direction Period (s) | NE 8 | — | — | N 9 | E 10 | E 9 | E 17 | — | E 16 | E 15 | ENE 15 | — | ENE 14 | S 19 | E 14 | E 14 | SSE 21 | SSE 18 | ENE 13 | E 13 |
| kJ | 3 | — | — | 2 | 8 | 7 | 6 | — | 5 | 5 | 21 | — | 18 | 7 | 15 | 16 | 83 | 32 | 17 | 13 |
Wind waves Height (m) Direction Period (s) | — | S 8 | SSE 9 | — | NNW 2 | SW 3 | S 8 | S 10 | S 10 | S 10 | SSE 10 | S 9 | — | — | — | ENE 3 | NE 4 | — | ENE 4 | — |
| kJ | — | 1280 | 913 | — | 1 | 3 | 1350 | 2642 | 1667 | 1962 | 1470 | 1252 | — | — | — | 9 | 27 | — | 34 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 5 | 73 | 73 | 0 | 1 | 40 | 791 | 46 | 43 | 263 | 0 | 0 | 82 | 0 | 1 | 60 | 1 | 1 | 85 | 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.
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