Surf Forecasts:
Shark Island (Cronulla) surf forecast from 30 Jul 2026:
- Best quality surf: Friday 31 Jul, 7AM (local time) - 7ft (2.1m), 10s period, S swell with offshore winds.
- Most powerful swell: Thursday 30 Jul, 10PM (local time) - 6ft (1.9m), 11s period, S swell with 835 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 10PM (local time) - 6ft (1.9m), 11s 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 Thursday (Jul 30) at 10PM. The primary swell is predicted to be 1.9m and 11s period. 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 1.9m 11s and forecast to arrive on Thursday (Jul 30) at 10PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Tuesday (Aug 04) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 30th Jul) | 6ft (1.9m) 11s |
| Best Surf | 7AM (Fri 31st Jul) | 7ft (2.1m) 10s |
| Most Powerful | 10PM (Thu 30th Jul) | 6ft (1.9m) 11s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s going on at Shark Island (Cronulla). This is a reef that needs a good S/SE swell, and we’re looking at a few options.
The first call is on Thursday the 30th of July. We’ve got a 6ft southerly swell, but the cross-off wind and a combined energy of 890 (moderate) only make it a marginal day. The water temp is 63°, which is about what you’d expect for winter.
Then things go quiet. From Friday the 31st of July through the next week, there’s some swell around 5ft to 6ft, but the wind is almost always wrong, and the surf quality is in the toilet. The 4th of August is practically flat, with combined energy dropping to 19 and 39. That’s a reef that’s not breaking.
The first real blip of hope is Wednesday the 5th of August. A 5ft southerly swell, clean cross-off wind from the west at 10 mph, and the combined energy is back up to 416 (moderate). The wave comment says “expect good surf conditions,” so that’s a solid session for those who are patient.
But the true standout, the one that’s worth waiting for, is Friday the 14th of August. The swell builds to 8ft in the morning and hits 8ft in the afternoon. The wind is offshore from the SW at 10 mph, so the faces will be clean and hollow. The combined energy jumps from 893 to 1097 – that’s strong, powerful stuff. The guidance says “expect very good surf conditions.” This is a reef, and that size is for experts only. It’s the best day by a long shot, but it’s also the most distant, so don’t book the time off just yet.
Just a heads up, the 12-second period swell on the 2nd of August is a groundswell that can be a bit too straight for this reef. Not the day.
So, a long stretch of average to flat, with the 5th of August being a good paddle, and the 14th of August being the big one. The forecast is promising.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Sun morning, min 11°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Mon morning, min 9°C on Tue night). Winds decreasing (fresh winds from the W on Tue afternoon, calm by Wed morning). | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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 10 | S 10 | S 9 | S 9 | S 9 | SSE 9 | SSE 12 | SE 12 | SSE 12 | SE 11 | SE 11 | SE 11 | SSE 10 | SSE 10 | S 6 | S 10 | S 10 | S 10 | S 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 521 | 759 | 541 | 505 | 440 | 380 | 301 | 669 | 558 | 680 | 380 | 198 | 140 | 43 | 10 | 26 | 318 | 408 | 414 | 275 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | off | off | cross-on | cross | cross | on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off |
High Tide | 8:49PM1.59m | 9:29AM1.15m | 9:23PM1.56m | 10:05AM1.20m | 9:59PM1.51m | 10:43AM1.24m | 10:36PM1.44m | 11:23AM1.28m | 11:18PM1.34m | 12:07PM1.32m | 00:06AM1.23m | 12:58PM1.35m | 1:06AM1.12m | |||||||
Low Tide | 3:30AM0.15m | 3:02PM0.35m | 4:02AM0.14m | 3:43PM0.36m | 4:33AM0.15m | 4:27PM0.37m | 5:06AM0.17m | 5:15PM0.40m | 5:42AM0.21m | 6:11PM0.42m | 6:24AM0.26m | 7:17PM0.43m | ||||||||
 |  | | | |  | | | | | | | | | | | | | |  | |
 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — |
 | 5:13 | — | — | 5:14 | — | — | 5:14 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 14 | 14 | 15 | 14 | 15 | 14 | 16 | 16 | 15 | 20 | 19 | 14 | 16 | 15 | 11 | 16 | 16 | 13 |
Feels °C | 10 | 9 | 10 | 9 | 12 | 12 | 14 | 12 | 12 | 11 | 12 | 18 | 14 | 10 | 8 | 7 | 4 | 13 | 12 | 9 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 10 | S 10 | S 9 | S 9 | S 9 | SSE 9 | SSE 12 | SE 12 | SSE 12 | SE 11 | SE 11 | SE 11 | SSE 10 | SSE 10 | S 6 | S 10 | S 10 | S 10 | S 9 |
| kJ | 299 | 759 | 541 | 505 | 440 | 380 | 301 | 669 | 558 | 680 | 380 | 198 | 140 | 43 | 10 | 26 | 318 | 408 | 414 | 275 |
Swell 2 Height (m) Direction Period (s) | S 12 | — | NE 7 | NE 6 | NE 7 | NE 7 | SSE 13 | SE 15 | SE 14 | E 17 | NE 5 | NE 5 | NE 5 | ESE 8 | ESE 7 | SSE 10 | E 9 | E 8 | E 13 | E 9 |
| kJ | 69 | — | 2 | 2 | 2 | 2 | 68 | 174 | 228 | 6 | 19 | 7 | 6 | 12 | 5 | 9 | 6 | 5 | 3 | 6 |
Swell 3 Height (m) Direction Period (s) | NE 6 | — | E 13 | E 13 | E 13 | E 12 | NE 7 | NE 7 | E 17 | S 21 | NE 8 | E 16 | E 15 | ENE 5 | E 14 | E 7 | E 13 | E 13 | E 10 | E 12 |
| kJ | 1 | — | 3 | 3 | 3 | 3 | 2 | 2 | 6 | 9 | 3 | 5 | 5 | 2 | 4 | 4 | 3 | 3 | 2 | 3 |
Wind waves Height (m) Direction Period (s) | S 9 | — | — | — | — | — | NE 3 | NE 4 | NNE 4 | NE 4 | — | NNW 2 | NW 3 | WNW 3 | SW 5 | SSW 6 | — | — | — | — |
| kJ | 521 | — | — | — | — | — | 6 | 10 | 8 | 13 | — | 1 | 7 | 1 | 18 | 64 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 40 | 0 | 0 | 73 | 0 | 0 | 5 | 1 | 1 | 60 | 1 | 1 | 1 | 1 | 253 | 29 | 1 | 0 | 0 | 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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