Surf Forecasts:
Shark Island (Cronulla) surf forecast from 10 Sep 2026:
- Best quality surf: Friday 11 Sep, 4AM (local time) - 7ft (2.1m), 10s period, S swell with offshore winds.
- Most powerful swell: Friday 11 Sep, 4AM (local time) - 7ft (2.1m), 10s period, S swell with 884 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 1AM (local time) - 6.5ft (2.0m), 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 1AM. The primary swell is predicted to be 2.0m and 10s period with a secondary swell of 0.1m and 22s. 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 2.1m 10s and forecast to arrive on Friday (Sep 11) at 4AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Tuesday (Sep 15) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 11th Sep) | 6.5ft (2.0m) 10s |
| Best Surf | 4AM (Fri 11th Sep) | 7ft (2.1m) 10s |
| Most Powerful | 4AM (Fri 11th Sep) | 7ft (2.1m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Alright, Rusty here, let’s get into the outlook for Shark Island (Cronulla) over the next sixteen days.
The first few days are mostly a miss. Thursday afternoon, September 10, brings a 7ft south swell at 10 seconds, but that cross-off south wind at 15 mph makes it a rough go. Water temp sits at 64°F, about average for the time of year. Friday morning, September 11, cleans up a bit with a 6ft SSE swell at 10 seconds and lighter cross-off winds at 6 mph. It’s better, but still not top shelf. Saturday morning, September 12, drops to 4ft south swell, but the cross-shore wind keeps it mediocre. Saturday afternoon through Monday, September 14, is a downward spiral of smaller swell and onshore winds.
We get a small window on Thursday morning, September 17 – glassy conditions with a 4ft south swell at 10 seconds. It’s surfable, nothing more.
The real standout comes on Saturday morning, September 19. That’s a heavy 10ft south swell at 11 seconds, with offshore WSW winds at 9 mph and massive wave energy (1944). This is serious groundswell – expert territory only. Saturday afternoon holds 7ft and clean with offshore SW winds (695 energy), which is another beauty for experienced surfers. Then Monday morning, September 21, brings glassy seas with a 5ft SE swell at 10 seconds and good energy (761) – another top-tier session.
After that, it tails off. Sunday, September 20, is big swell but ruined by strong onshore NE winds. The rest of the run is small, wind-affected, or poor quality. Thursday, September 24, has a 6ft ENE swell but it’s short-period at 7 seconds and messy – better for kite surfing.
So, your best bets are the morning of Saturday, September 19, and Monday morning, September 21. Crowds will be a factor when it’s clean and solid. Choose wisely.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun morning, min 13°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 26°C on Mon morning, min 14°C on Tue night). Mainly fresh winds. | |||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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 10 | S 10 | SSE 10 | SSE 9 | SSE 10 | S 10 | S 11 | SSE 10 | S 9 | S 10 | S 10 | S 11 | S 11 | S 10 | S 10 | E 13 | SSE 8 | S 9 | S 8 | S 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 826 | 767 | 551 | 409 | 271 | 270 | 229 | 163 | 110 | 141 | 102 | 114 | 82 | 49 | 28 | 13 | 509 | 705 | 301 | 381 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross | cross-off | cross | on | cross | cross-on | on | cross-off | cross | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross |
High Tide | 7:37PM1.65m | 8:13AM1.38m | 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 | |||||||
Low Tide | 2:06AM0.04m | 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 | ||||||||
 |  | | | | | |  | |  | | | | |  |  |  | | | | |
 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — |
 | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — |
Temp °C | 15 | 14 | 15 | 15 | 15 | 18 | 17 | 16 | 19 | 18 | 17 | 26 | 25 | 24 | 16 | 15 | 15 | 15 | 15 | 14 |
Feels °C | 10 | 11 | 13 | 13 | 15 | 15 | 13 | 15 | 15 | 13 | 17 | 21 | 21 | 21 | 13 | 11 | 11 | 11 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | SSE 22 | S 10 | SSE 10 | SSE 9 | SSE 10 | S 10 | S 11 | SSE 10 | S 9 | S 10 | ENE 6 | S 11 | S 11 | NE 6 | NE 6 | NE 6 | E 14 | S 9 | S 8 | S 11 |
| kJ | 157 | 767 | 551 | 409 | 271 | 270 | 229 | 163 | 110 | 141 | 43 | 114 | 82 | 25 | 18 | 5 | 15 | 705 | 301 | 381 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | S 22 | E 15 | E 14 | SSE 19 | SSE 19 | SSE 19 | SSE 20 | NE 4 | ENE 13 | S 10 | ENE 6 | ENE 13 | S 10 | S 10 | S 9 | NE 6 | S 17 | E 14 | ENE 13 |
| kJ | 17 | 9 | 17 | 4 | 35 | 122 | 70 | 75 | 4 | 17 | 102 | 22 | 16 | 49 | 28 | 6 | 1 | 24 | 16 | 17 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 15 | — | E 10 | E 13 | E 14 | ENE 14 | E 13 | SSE 16 | E 9 | E 13 | ENE 13 | — | E 12 | E 12 | E 13 | S 17 | E 14 | ENE 12 | NE 7 |
| kJ | 2 | 4 | — | 2 | 14 | 15 | 19 | 13 | 27 | 2 | 13 | 17 | — | 12 | 3 | 13 | 6 | 16 | 15 | 2 |
Wind waves Height (m) Direction Period (s) | S 10 | — | — | — | — | — | E 3 | NE 4 | NNE 4 | ENE 4 | — | — | NE 4 | — | S 4 | SSE 5 | SSE 8 | — | — | — |
| kJ | 826 | — | — | — | — | — | 1 | 8 | 11 | 21 | — | — | 12 | — | 9 | 53 | 509 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 96 | 0 | 0 | 43 | 0 | 1 | 132 | 1 | 1 | 147 | 0 | 1 | 5 | 1 | 227 | 153 | 120 | 40 | 5 | 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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