Surf Forecasts:
Shark Island (Cronulla) surf forecast from 10 Sep 2026:
- Best quality surf: Thursday 17 Sep, 1AM (local time) - 7ft (2.1m), 11s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 7AM (local time) - 11ft (3.5m), 10s period, S swell with 2,290 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 7AM (local time) - 5.5ft (1.7m), 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 Friday (Sep 11) at 7AM. The primary swell is predicted to be 1.7m and 10s period with a secondary swell of 0.1m and 15s. 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 3.5m 10s and forecast to arrive on Wednesday (Sep 16) 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 1.4m 5s period and expected on Tuesday (Sep 15) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 11th Sep) | 5.5ft (1.7m) 10s |
| Best Surf | 1AM (Thu 17th Sep) | 7ft (2.1m) 11s |
| Most Powerful | 7AM (Wed 16th Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming our way for Shark Island (Cronulla).
The next 16 days start off pretty flat and ugly, but there’s a bit of a pulse trying to build. Friday the 11th morning is your best shot early on. Swell is a solid 5 ft out of the SSE, and with glassy 3 mph SW winds, it’s gonna be clean. Water temp is sitting at 64°, which is about average for this time of year – nothing weird there. The combined energy is moderate at 509, so there’s enough push. This is a reef break for the advanced crew, so don’t bring the beginners. After Friday morning, things go downhill fast – the afternoon turns to poor conditions with cross-on E winds, and then we’ve got a run of days with tiny or wind-affected surf.
Saturday the 12th morning has 4 ft SSE swell and 12-second period, but cross-shore NNW winds keep it from being top-notch. Sunday and Monday are forgettable with tiny, messy waves.
Now, Wednesday the 16th morning is where it gets interesting but serious. We’ve got a big 10 ft S swell rolling in, with very strong combined energy at 2006. Period is 10 seconds, and the wind is cross-off from the SSW at 22 mph – that’s clean, but this is only for experts. Too big for most. The afternoon drops to 8 ft, still big and clean, but again, experts only.
Thursday the 17th morning is the real standout. Swell drops to a much more manageable 5 ft S, period 10 seconds, and the wind goes glassy again at 3 mph from the S. Clean, clean, clean. Combined energy is 571 – solid moderate. This is the one to aim for. Crowds are possible here sometimes, but early glassy morning should thin it out.
After that, it’s back to poor conditions for the rest of the run. Small swell, onshore winds, choppy – not worth paddling out. There’s a brief flare on Wednesday the 23rd afternoon with 7 ft S swell and light cross-on wind, but it’s marginal. Same story Thursday the 24th morning with 5 ft onshore junk.
To wrap it up: Friday morning the 11th and Thursday morning the 17th are your standouts. Get out there early.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Sat morning, min 13°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the NE by Sun afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 24°C on Mon afternoon, min 11°C on Tue night). Winds increasing (light winds from the NNW on Mon morning, strong winds from the S by Tue night). | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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) | SSE 10 | SSE 9 | SSE 10 | SSE 12 | S 10 | S 10 | S 10 | S 10 | S 10 | S 11 | S 11 | ENE 6 | S 9 | S 9 | SSE 8 | S 10 | S 9 | S 11 | S 10 | SSE 10 | SSE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 492 | 367 | 271 | 343 | 225 | 148 | 115 | 138 | 104 | 119 | 82 | 47 | 27 | 14 | 915 | 1999 | 950 | 1029 | 530 | 391 | 211 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | cross | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off |
High Tide | 8:20PM1.59m | 8:50AM1.44m | 9:01PM1.50m | 9:27AM1.47m | 9:42PM1.38m | 10:04AM1.47m | 10:22PM1.25m | 10:41AM1.44m | 11:04PM1.12m | 11:21AM1.39m | 11:51PM1.01m | 12:07PM1.33m | 00:47AM0.92m | ||||||||
Low Tide | 2:07PM0.18m | 2:41AM0.07m | 2:53PM0.17m | 3:15AM0.13m | 3:37PM0.19m | 3:47AM0.21m | 4:22PM0.24m | 4:19AM0.29m | 5:09PM0.31m | 4:51AM0.38m | 6:00PM0.38m | 5:28AM0.47m | 6:59PM0.45m | ||||||||
 |  |  | | | | | | | | | | |  |  |  | |  | | | | |
 | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:52 | — | — |
 | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — |
Temp °C | 16 | 15 | 15 | 18 | 17 | 16 | 18 | 18 | 17 | 23 | 24 | 23 | 18 | 17 | 14 | 13 | 14 | 14 | 14 | 14 | 13 |
Feels °C | 14 | 13 | 16 | 15 | 13 | 14 | 14 | 13 | 16 | 20 | 20 | 20 | 16 | 13 | 7 | 5 | 6 | 8 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 9 | SSE 10 | SSE 12 | S 10 | S 10 | S 10 | S 10 | ENE 6 | NE 6 | S 11 | ENE 6 | NE 6 | NE 6 | NE 6 | E 12 | E 14 | S 11 | S 10 | SSE 10 | SSE 9 |
| kJ | 492 | 367 | 271 | 343 | 225 | 148 | 115 | 138 | 69 | 31 | 82 | 47 | 18 | 8 | 1 | 3 | 4 | 1029 | 530 | 391 | 211 |
Swell 2 Height (m) Direction Period (s) | E 15 | E 14 | SSE 19 | SSE 19 | SSE 19 | NE 4 | ENE 4 | ENE 13 | S 10 | S 11 | ENE 13 | SSE 10 | S 9 | S 9 | E 14 | E 15 | — | E 13 | S 19 | E 13 | NE 4 |
| kJ | 17 | 4 | 35 | 122 | 71 | 9 | 8 | 17 | 104 | 119 | 16 | 31 | 27 | 14 | 15 | 4 | — | 3 | 28 | 13 | 2 |
Swell 3 Height (m) Direction Period (s) | — | E 10 | E 13 | ENE 14 | ENE 14 | SSE 20 | SSE 16 | E 9 | E 13 | E 13 | — | E 12 | E 12 | E 13 | S 18 | — | — | — | E 13 | S 19 | E 13 |
| kJ | — | 2 | 14 | 19 | 19 | 129 | 27 | 2 | 13 | 13 | — | 12 | 3 | 13 | 6 | — | — | — | 13 | 7 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | ENE 3 | NE 4 | NE 4 | ENE 4 | — | — | NE 5 | NW 2 | SSW 3 | SE 3 | SSE 8 | S 10 | S 9 | — | — | NE 3 | NNE 3 |
| kJ | — | — | — | — | 3 | 18 | 16 | 34 | — | — | 37 | 1 | 2 | 5 | 915 | 1999 | 950 | — | — | 2 | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 5 | 0 | 1 | 472 | 1 | 1 | 472 | 1 | 1 | 5 | 0 | 29 | 225 | 218 | 175 | 43 | 0 | 0 | 5 | 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.
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