
Surf Forecasts:
Shark Island (Cronulla) surf forecast from 5 Sep 2026:
- Best quality surf: Monday 7 Sep, 1AM (local time) - 8ft (2.5m), 10s period, S swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 4AM (local time) - 11ft (3.5m), 10s period, S swell with 2,337 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 10AM (local time) - 3ft (0.9m), 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 0.9m and 7s period with a secondary swell of 0.4m and 6s. 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 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Sep 06) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sun 6th Sep) | 3ft (0.9m) 7s |
| Best Surf | 1AM (Mon 7th Sep) | 8ft (2.5m) 10s |
| Most Powerful | 4AM (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, let’s have a look at what’s in store for the next couple of weeks down at Shark Island (Cronulla).
Right off the bat, the forecast is a bit of a slow starter. We’ve got clean conditions from Saturday afternoon with a light cross-offshore breeze, but the swell is tiny, only 2 ft from the south. It’s flat and the energy is weak (66), so don’t get your hopes up for the weekend.
Sunday morning sees a bump in size to 3 ft with a clean offshore wind, but the period is short at 7 seconds, so the waves will be a bit crumbly and weak (90). It’s surfable, but nothing to write home about.
Now, Monday the 7th is where things start to get interesting. The swell picks up to 5 ft from the SSE with a period of 10 seconds. The combined energy jumps to 548, which is a solid moderate. The wind is light and cross-shore, so there will be some small ripples on the face. This is a promising day, but the tide might play games with us.
Tuesday the 8th is a real standout. We’ve got a solid 10 ft south swell rolling in early morning, with a clean cross-offshore wind. The energy is pumping at 2607 – that’s strong. This is for experienced surfers only; the size is well over 8 ft. The afternoon settles a bit to 8 ft but the period stretches to 11 seconds, which will bring in some nice groundswell lines. Again, experts only.
The following Thursday, September 10th, is another cracker. Thursday morning has another 10 ft south swell with clean winds and very strong energy (2926). By the afternoon, the swell drops a touch to 8 ft, but the wind is light cross-offshore and the conditions are described as excellent for experienced surfers. The energy is still massive at 2295. This is the best window for the crew who can handle it.
Friday the 11th offers a brief reprieve for the slightly less hardcore. The swell drops to 6 ft from the south, and we get glassy conditions with a 3 mph offshore wind. The period is 10 seconds and the energy is 787. This is clean, good surf for those with some experience, and the crowd might be around but it’s a reef break, so pick your line.
After that, the swell fades through the second week. Saturday the 12th has a weak 4 ft south swell, but the wind turns onshore and choppy. Sunday the 13th morning gives us a glassy 3 ft south swell with a 12-second period, so there will be some long lines, but it’s small and clean. That’s your best bet in the second week.
From the 14th onwards, the forecast is pretty poor. Onshore winds, weak swells, and messy conditions dominate until we see another pulse of size on Wednesday the 16th – 8 ft south swell with a long 12-second period and clean winds, but again, that’s big and only for the experts. The energy is 2400, so it’s a proper swell.
After that, it’s mostly small and onshore to finish the period. A few clean mornings here and there with 3 ft to 5 ft swell, but nothing that’ll get the heart racing.
To sum it up: The real action is from Monday the 7th through to Friday the 11th. The standout is Thursday September 10th – that afternoon session with 8 ft south swell, a 10-second period, and gentle offshore winds is going to be magic for those who know what they’re doing. If you’re not keen on the big stuff, Sunday the 13th morning offers a glassy, clean 3 ft south swell that’ll be a fun, easy paddle.
Stay safe out there, and don’t be a hero if you’re not ready for the size.
- Rusty
Short Range ForecastMostly dry. Warm (max 28°C on Sat afternoon, min 13°C on Sat night). Winds increasing (light winds from the NW on Mon morning, fresh winds from the S by Mon night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Tue morning, min 11°C on Tue night). Winds decreasing (strong winds from the S on Wed morning, light winds from the SSW by Thu night). | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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) | S 9 | S 9 | S 9 | SSW 7 | S 8 | S 10 | SSE 10 | SSE 9 | SSE 9 | S 10 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | S 10 | S 10 | S 11 | S 10 | S 10 | S 11 |
Wave Graph | |||||||||||||||||||||
60 | 42 | 27 | 70 | 196 | 1131 | 544 | 487 | 1351 | 1476 | 1456 | 591 | 315 | 454 | 1845 | 1649 | 1224 | 1068 | 774 | 632 | 441 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | off | cross-off | off | cross | cross-on | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-off |
High Tide | 2:45PM1.44m | 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 | 9:51PM0.31m | 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 | ||||||||
6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | |
— | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 28 | 22 | 20 | 18 | 16 | 18 | 17 | 16 | 15 | 14 | 14 | 15 | 14 | 14 | 13 | 13 | 13 | 16 | 16 | 15 |
Feels °C | 22 | 22 | 19 | 15 | 13 | 12 | 15 | 13 | 10 | 11 | 11 | 12 | 9 | 5 | 5 | 9 | 9 | 11 | 13 | 13 | 15 |
Swell 1 Height (m) Direction Period (s) | S 9 | ENE 5 | ENE 6 | NE 6 | S 8 | S 10 | SSE 10 | SSE 9 | E 10 | SSE 10 | SSE 11 | SSE 10 | SSE 9 | S 16 | S 17 | S 10 | S 10 | S 11 | S 10 | S 10 | S 11 |
60 | 17 | 23 | 11 | 94 | 864 | 544 | 487 | 9 | 1129 | 1456 | 591 | 315 | 5 | 49 | 1232 | 973 | 1068 | 774 | 632 | 441 | |
Swell 2 Height (m) Direction Period (s) | NE 5 | S 9 | S 9 | E 11 | NE 7 | ENE 10 | E 10 | ENE 10 | — | E 11 | E 10 | E 10 | — | E 9 | E 16 | S 23 | SSE 22 | SSE 23 | E 15 | E 14 | ENE 13 |
4 | 42 | 27 | 9 | 7 | 10 | 2 | 9 | — | 2 | 2 | 2 | — | 2 | 5 | 40 | 93 | 53 | 4 | 15 | 18 | |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | — | E 10 | E 10 | NE 8 | E 10 | — | — | — | — | S 18 | E 17 | — | E 16 | E 15 | E 15 | S 22 | E 10 | S 19 |
7 | 7 | 6 | — | 9 | 8 | 2 | 8 | — | — | — | — | 6 | 6 | — | 5 | 5 | 4 | 9 | 2 | 29 | |
Wind waves Height (m) Direction Period (s) | NNW 2 | W 3 | WSW 3 | SSW 7 | S 8 | S 10 | — | — | SSE 9 | S 10 | — | — | NW 3 | SSE 9 | SSE 9 | S 10 | S 10 | — | — | NE 3 | — |
1 | 4 | 5 | 70 | 196 | 1131 | — | — | 1351 | 1476 | — | — | 1 | 454 | 1845 | 1649 | 1224 | — | — | 2 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 33 | 29 | 0 | 95 | 0 | 1 | 82 | 175 | 0 | 43 | 1 | 43 | 647 | 43 | 0 | 0 | 0 | 0 | 60 | 0 |
Best forecast wave conditions in Sydney South Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










