
Surf Forecasts:
Shark Island (Cronulla) surf forecast from 6 Sep 2026:
- Best quality surf: Thursday 10 Sep, 7AM (local time) - 10ft (3.0m), 10s period, S swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 1AM (local time) - 11ft (3.5m), 10s period, SSE swell with 2,316 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 1AM (local time) - 6ft (1.9m), 9s 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 Monday (Sep 07) at 1AM. The primary swell is predicted to be 1.9m and 9s period with a secondary swell of 0.2m and 10s. 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 Wednesday (Sep 09) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 7th Sep) | 6ft (1.9m) 9s |
| Best Surf | 7AM (Thu 10th Sep) | 10ft (3.0m) 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
Alright, Rusty here, looking at the surf for the next couple of weeks. It's a slow start, so don't rush down this afternoon. The good stuff starts building later in the week, with a couple of standout windows for the experienced crew.
This first stretch is a write-off. Sunday afternoon (September 6th) is a no-go with strong southerly winds at 18.6 mph making a mess of things. Monday and Tuesday stay pretty average, with small, short-period swells and onshore or cross-shore breezes. You're looking at a few days of flat to poor conditions to kick things off.
Now, things get interesting from Thursday the 10th. We've got a solid 8.2 ft south swell building, and while the morning is marginal, Thursday afternoon looks promising. The wind is a moderate cross-off from the south at 12.4 mph, keeping the surface clean, and the swell period stretches to 10 seconds with strong wave energy. That's a powerful setup for the advanced crew at Shark Island (Cronulla). The swell is getting up there, so this one is for the experts only. This spot is a reef break, fairly exposed to the south swell, and with crowds sometimes, it’s worth an early paddle.
Friday the 11th morning is the real standout. The wind swings light offshore from the southwest at 6.2 mph, grooming a solid 6.6 ft south swell with a 10-second period. The conditions are expected to be very good. This is the pick of the week for the experienced surfers – clean, powerful lines on the reef.
After that, Saturday the 12th morning offers a glassy session with a lighter 5.2 ft south swell and a longer 11-second period. It’s a good option for a relaxed paddle if Friday doesn’t work out. The water temp is about average for this time of year at 64.2°F.
The following week has some pulses, but nothing that matches that Friday peak. There’s a bigger, punchy 7.2 ft south swell on Tuesday the 15th morning, but it's short-period (8 seconds) – a lot of power but not the best shape. Then on Wednesday the 16th morning, we get a glassy 4.9 ft south groundswell with an 11-second period, making for a clean but smaller session. The long-range window on Thursday the 17th morning shows a glassy 2.3 ft SSE swell with a very long 16-second period – that’s a groundswell, but tiny. That long period might make it break too straight for the beachies, but on the reef at Shark Island, it could offer some clean, walled-up lines if it fills in. Still, it’s a long way out, so keep an eye on it.
All in all, the best bet is Friday morning the 11th for a proper session. Thursday afternoon the 10th is the next best. The rest is a mix of small, windy, or marginal conditions.
Short Range ForecastMostly dry. Very mild (max 18°C on Mon morning, min 11°C on Tue night). Winds increasing (light winds from the NW on Mon morning, strong winds from the S by Wed morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 16°C on Fri morning, min 11°C on Wed night). Winds decreasing (strong winds from the S on Wed afternoon, calm by Sat morning). | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 8 | S 9 | SSE 8 | SSE 9 | S 8 | SSE 8 | SSE 8 | S 9 | S 8 | S 8 | SSE 10 | S 10 | S 10 | S 11 | S 10 | SSE 10 | S 10 | S 11 | SSE 10 | SSE 9 |
Wave Graph | ||||||||||||||||||||
213 | 580 | 212 | 352 | 858 | 737 | 428 | 264 | 140 | 832 | 2316 | 1218 | 1277 | 1762 | 767 | 681 | 584 | 606 | 424 | 216 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross | cross-on | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross | off | glassy | cross-on | cross |
High Tide | 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 | 8:50AM1.44m | 9:01PM1.50m | ||||||||
Low Tide | 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 | 2:53PM0.17m | 3:15AM0.13m | |||||||
— | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | |
5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 16 | 18 | 17 | 16 | 16 | 15 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 16 | 15 | 14 | 15 | 15 | 14 |
Feels °C | 12 | 13 | 15 | 14 | 10 | 11 | 12 | 12 | 8 | 4 | 5 | 8 | 9 | 11 | 14 | 9 | 10 | 13 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | NE 7 | S 9 | SSE 8 | SSE 9 | E 10 | E 11 | SSE 8 | S 9 | S 8 | ESE 13 | ESE 11 | ESE 10 | ESE 10 | S 10 | S 10 | SSE 10 | S 10 | S 11 | SSE 10 | SSE 9 |
7 | 580 | 212 | 352 | 8 | 9 | 428 | 264 | 140 | 35 | 42 | 39 | 18 | 1231 | 767 | 681 | 584 | 606 | 424 | 216 | |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | SSE 11 | E 10 | NE 8 | — | E 10 | SE 8 | SE 7 | E 9 | E 16 | S 22 | SSE 22 | SSE 21 | E 15 | E 14 | E 13 | S 19 | SSE 18 | E 13 |
9 | 8 | 44 | 8 | 2 | — | 8 | 78 | 43 | 7 | 5 | 38 | 92 | 87 | 4 | 4 | 14 | 28 | 63 | 13 | |
Swell 3 Height (m) Direction Period (s) | — | NE 7 | NE 8 | NE 8 | — | — | N 9 | E 10 | E 9 | E 17 | NE 16 | E 16 | E 15 | ESE 9 | SE 8 | E 10 | E 9 | E 14 | ENE 14 | E 9 |
— | 2 | 2 | 3 | — | — | 2 | 8 | 7 | 5 | 10 | 5 | 5 | 8 | 3 | 2 | 2 | 15 | 19 | 2 | |
Wind waves Height (m) Direction Period (s) | S 8 | — | — | — | S 8 | SSE 8 | — | — | SW 3 | S 8 | SSE 10 | S 10 | S 10 | S 11 | — | — | — | — | ENE 2 | NNE 3 |
213 | — | — | — | 858 | 737 | — | — | 4 | 832 | 2316 | 1218 | 1277 | 1762 | — | — | — | — | 1 | 3 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 95 | 0 | 1 | 210 | 120 | 50 | 95 | 1 | 43 | 433 | 40 | 43 | 73 | 0 | 0 | 153 | 0 | 0 | 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.










