
Surf Forecasts:
Shark Island (Cronulla) surf forecast from 5 Sep 2026:
- Best quality surf: Thursday 10 Sep, 7PM (local time) - 8ft (2.4m), 10s period, S swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 1AM (local time) - 11ft (3.5m), 10s period, SSE swell with 2,099 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 10AM (local time) - 3.5ft (1.0m), 7s period with SSW 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 Sunday (Sep 06) at 10AM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.4m and 7s. Another secondary swell of 0.2m and 11s is also forecast. 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 Thursday (Sep 10) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Sep 06) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sun 6th Sep) | 3.5ft (1.0m) 7s |
| Best Surf | 7PM (Thu 10th Sep) | 8ft (2.4m) 10s |
| Most Powerful | 1AM (Thu 10th Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
G’day, I’m Rusty, and I’ve been staring at the charts for your spot – Shark Island (Cronulla). This is a reef setup that likes a solid S to SSE pulse. Over the next two and a half weeks, we’ve got a messy start with some real junk to sift through, but there’s a couple of windows that’ll get the heart rate up if you’re patient.
Right now, things are flat and ordinary. Saturday the 5th only offers a tiny 2 ft S swell with weak combined energy (67) and a moderate cross-off breeze – basically a write-off. Sunday morning the 6th sees a bump to 3 ft from the SSW with offshore wind, but the period is short at 7 seconds and the energy is still low (112). It’s surfable but very average.
Monday morning the 7th is when you start to pay attention. The wind goes glassy, dead calm – a beautiful NW breeze at 5 km/h – and the swell is a clean 5 ft from the S with moderate energy (261) and an 8-second period. This is the first real highlight. It’s clean, it’s lined up, and for a fairly consistent reef like Shark Island with a SE optimum, a little S swell with glass makes for a proper session. Water temp is sitting right on average for this time of year at 64°, so don’t bother with the thick rubber.
The real standout though is Thursday the 10th. Morning shows 8 ft from the S with a 10-second period and combined energy surging to 1249. That’s strong. Afternoon gets even punchier: 8 ft from the S, period still 10 seconds, and energy jumps to a massive 2705. Winds are cross-off from the SSE at 20 km/h, keeping it clean. This is big, powerful, and right in the groove for Shark Island. For advanced surfers only – at over 8 ft this is expert territory. The reef will handle it, and the long 10-second period means proper groundswell lines. Crowds are possible here, but when it’s this size, the lineup thins out.
Friday morning the 11th holds solid at 6 ft from the S with an 11-second period and 740 energy. Light cross-off from the WNW at 10 km/h – almost glassy again. Clean, punchy, and the set gaps will be noticeable with that longer period, making the paddle out a bit easier for those who wait.
After that, it drops off. Saturday the 12th is messy with onshore NE winds, and Sunday the 13th fades to 4 ft with a long 11-second period but cross-shore breeze. The next week gets a bit of a pulse late on Tuesday the 15th – 8 ft from the S again, with 8-second period and 852 energy – but it’s blowing a solid 35 km/h cross-off from the SSW. That’s strong wind, even if it’s offshore, so expect a bit of a blast. By Wednesday the 16th it’s back to 5 ft and clean, but nothing special.
Thursday the 17th afternoon offers another late push: 7 ft from the S with an 11-second period and 1633 energy. Winds are cross-off from the SSE at 30 km/h – clean but windy. That’s worth a look for the crew who don’t mind a bit of spray.
So, the best on offer? Monday morning the 7th for glassy, fun waves, and Thursday the 10th for the big, powerful session. The water’s average for September, so just your usual spring wetsuit.
- Rusty
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 22°C on Sat night, min 13°C on Sun night). Winds increasing (light winds from the NW on Mon morning, fresh winds from the S by Mon night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Fri morning, min 11°C on Tue night). Winds decreasing (fresh winds from the S on Wed morning, light winds from the WNW by Fri morning). | ||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
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 9 | SSW 7 | S 8 | S 10 | SSE 8 | SSE 9 | S 8 | SSE 9 | SSE 9 | S 9 | S 9 | SSE 7 | SSE 10 | S 10 | S 10 | S 11 | S 10 | S 10 | S 10 |
Wave Graph | |||||||||||||||||||
27 | 91 | 125 | 864 | 270 | 275 | 617 | 838 | 547 | 270 | 186 | 577 | 2099 | 1616 | 1183 | 1186 | 755 | 573 | 468 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | off | cross | cross | cross-off | cross-off | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off |
High Tide | 3:51AM0.97m | 3:59PM1.49m | 5:04AM1.03m | 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 | |||||||
Low Tide | 9:14AM0.47m | 11:01PM0.23m | 10:29AM0.43m | 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 | |||||||
— | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | |
— | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 19 | 18 | 16 | 18 | 16 | 15 | 15 | 15 | 14 | 15 | 14 | 14 | 13 | 13 | 13 | 17 | 16 | 14 |
Feels °C | 18 | 15 | 13 | 12 | 15 | 12 | 9 | 10 | 12 | 12 | 9 | 6 | 7 | 8 | 8 | 10 | 13 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | NE 6 | NE 7 | NE 7 | S 10 | SSE 8 | SSE 9 | E 10 | E 11 | SSE 9 | S 9 | S 9 | E 9 | ESE 12 | S 10 | ESE 9 | S 11 | S 10 | S 10 | S 10 |
16 | 16 | 7 | 864 | 270 | 275 | 9 | 9 | 547 | 270 | 186 | 7 | 27 | 1147 | 17 | 1186 | 755 | 573 | 468 | |
Swell 2 Height (m) Direction Period (s) | S 9 | E 11 | E 10 | ENE 10 | NE 8 | E 10 | NE 8 | — | E 10 | SE 9 | ESE 8 | S 16 | E 16 | SSE 23 | E 15 | ESE 8 | E 15 | E 14 | ENE 13 |
27 | 9 | 8 | 10 | 2 | 8 | 2 | — | 8 | 129 | 46 | 5 | 5 | 100 | 5 | 7 | 4 | 15 | 18 | |
Swell 3 Height (m) Direction Period (s) | E 11 | — | — | E 10 | E 10 | NE 7 | — | — | N 9 | E 10 | ENE 9 | E 17 | — | ESE 10 | NE 15 | SSE 23 | S 21 | E 10 | E 9 |
9 | — | — | 8 | 8 | 2 | — | — | 2 | 8 | 9 | 6 | — | 20 | 9 | 52 | 9 | 2 | 2 | |
Wind waves Height (m) Direction Period (s) | W 3 | SSW 7 | S 8 | — | — | — | S 8 | SSE 9 | — | — | WNW 3 | SSE 7 | SSE 10 | S 10 | S 10 | — | — | — | — |
4 | 91 | 125 | — | — | — | 617 | 838 | — | — | 1 | 577 | 2099 | 1616 | 1183 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 16 | 29 | 0 | 95 | 0 | 0 | 82 | 82 | 43 | 60 | 1 | 43 | 312 | 0 | 0 | 43 | 0 | 0 | 60 |
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.










