
Surf Forecasts:
Shark Island (Cronulla) surf forecast from 31 Jul 2026:
- Best quality surf: Saturday 1 Aug, 1AM (local time) - 5.5ft (1.7m), 10s period, S swell with offshore winds.
- Most powerful swell: Sunday 2 Aug, 4PM (local time) - 5ft (1.5m), 12s period, SSE swell with 669 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 1AM (local time) - 5.5ft (1.7m), 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 Saturday (Aug 01) at 1AM. The primary swell is predicted to be 1.7m and 10s period with a secondary swell of 0.1m and 7s. 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 1.5m 12s and forecast to arrive on Sunday (Aug 02) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (Aug 04) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 1st Aug) | 5.5ft (1.7m) 10s |
| Best Surf | 1AM (Sat 1st Aug) | 5.5ft (1.7m) 10s |
| Most Powerful | 4PM (Sun 2nd Aug) | 5ft (1.5m) 12s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s talk about Shark Island (Cronulla). This is a reef break that’s fairly exposed to the south-east, and right now it’s the only spot worth a look for the next 16 days. The water’s sitting at 63°F, with a slight anomaly of -1°F, so pretty much what you’d expect for this time of year.
The first surf we see is this Friday afternoon, the 31st of July. We’ve got a 6ft swell from the south with a period of 9 seconds, pushing a moderate wave energy of 570. The wind is cross-off from the SSE at 12 mph, which cleans it up, but it’s being called marginal. Not a total loss, but don’t expect perfection.
The real standout, and I mean the one to circle, is Saturday the 1st of August. The morning brings rain showers, but the wind is light offshore from the southwest at 3 mph, and that’s glassy. The swell drops just a touch to 5ft from the SSE, still 9 seconds, with energy at 411. The call is “expect good surf conditions,” and that’s the best we’ll get. The afternoon cleans up even more with a glassy ENE breeze at 3 mph, swell at 5ft, and energy at 367. Saturday is the day.
Sunday morning the 2nd has a bigger energy spike at 743, thanks to a 5ft SSE swell with a 12-second period, but the wind is a cross-shore NNW at 9 mph, putting a slight chop on it. The longer period means better shape, but it’s not clean. Avoid the Sunday afternoon session—that NE wind at 16 mph is onshore and the conditions are poor.
After that, it’s a rough patch. From Monday the 3rd through to the 10th, the swell drops, the winds get messy, and the scores are flat. There’s a brief window on Thursday morning the 6th with a 5ft S swell, 9 seconds, and a light cross-off WSW breeze at 6 mph. That’s clean, but it’s just one session. Same goes for Friday morning the 7th—5ft from the SSE, 9 seconds, and a slight air WSW wind at 3 mph. Another clean slot, but energy is moderate at 408.
Then we hit a big gap. From the 8th of August right through to the 15th, the surf is tiny, the wind is mostly onshore or cross-off, and the energy numbers are pathetic—mostly under 200. The best you’ll find in that second week is a modest 4ft on the 5th, but it’s cross-shore and marginal. The 11th and 12th have some clean cross-off wind, but the swell is barely 2ft. It’s a long, flat stretch.
If you’re a beginner, Saturday the 1st is fine at 5ft, but anything over 5ft can be a bit much. This is a reef break, so it’s for advanced surfers anyway. The 12-second period on Sunday the 2nd is a groundswell, and at a reef like Shark Island, that’s a good thing—longer lines, better shape. But the crowd is a concern; it’s “sometimes” busy, so be ready for company on the good days.
Bottom line: Saturday the 1st of August is your pick. Early morning, offshore, clean—that’s the one. The rest of the window is mostly a write-off, with a few tidy windows on the 6th and 7th. But after that, it’s a long wait until the 14th, and even that’s just a 3ft S swell with a 8-second period. Not worth paddling out for.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Fri night. Very mild (max 19°C on Mon morning, min 11°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Mon afternoon, min 9°C on Tue night). Winds decreasing (fresh winds from the WSW on Tue afternoon, light winds from the SE by Wed afternoon). | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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 | SSE 9 | SSE 9 | SSE 12 | SSE 12 | SSE 12 | SE 11 | SE 11 | SE 11 | SE 11 | E 7 | SSE 10 | S 7 | S 10 | S 10 | S 10 | S 9 | S 8 | SSE 8 |
Wave Graph | ||||||||||||||||||||
565 | 539 | 406 | 301 | 575 | 509 | 669 | 380 | 194 | 134 | 29 | 10 | 10 | 39 | 196 | 277 | 557 | 343 | 264 | 212 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | glassy | cross | cross | on | cross | cross-off | cross | cross-off | cross-off | off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off |
High Tide | 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 | 1:57PM1.39m | 2:20AM1.03m | |||||||
Low Tide | 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 | 7:13AM0.32m | 8:34PM0.42m | ||||||||
— | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | |
5:14 | — | — | 5:14 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:17 | — | |
mm | — | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 13 | 14 | 14 | 16 | 16 | 15 | 19 | 21 | 15 | 17 | 18 | 11 | 16 | 15 | 13 | 14 | 15 | 14 |
Feels °C | 10 | 11 | 12 | 13 | 12 | 12 | 11 | 12 | 13 | 15 | 11 | 11 | 11 | 4 | 13 | 11 | 9 | 11 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | NE 6 | S 10 | SSE 9 | SSE 9 | SSE 12 | SSE 12 | SSE 12 | SE 11 | SE 11 | SE 11 | SE 11 | SW 5 | SSW 6 | S 7 | S 10 | S 10 | S 10 | S 9 | S 8 | SSE 8 |
2 | 539 | 406 | 301 | 575 | 509 | 669 | 380 | 194 | 134 | 29 | 6 | 6 | 39 | 196 | 277 | 557 | 343 | 264 | 212 | |
Swell 2 Height (m) Direction Period (s) | E 13 | NE 7 | NE 7 | SSE 13 | SE 14 | SE 14 | S 21 | NE 5 | NE 5 | NE 5 | E 8 | E 7 | E 7 | S 9 | E 13 | E 10 | E 9 | E 8 | E 8 | ENE 8 |
3 | 2 | 2 | 64 | 132 | 228 | 9 | 14 | 7 | 6 | 20 | 9 | 4 | 16 | 14 | 17 | 15 | 6 | 5 | 6 | |
Swell 3 Height (m) Direction Period (s) | — | E 13 | E 12 | NE 7 | NE 7 | E 17 | E 17 | NE 8 | E 16 | E 15 | E 15 | SSE 10 | SSE 10 | E 8 | E 8 | E 7 | E 18 | E 12 | NE 8 | E 12 |
— | 3 | 3 | 2 | 2 | 6 | 6 | 3 | 5 | 5 | 4 | 10 | 10 | 5 | 4 | 4 | 6 | 3 | 3 | 3 | |
Wind waves Height (m) Direction Period (s) | S 9 | — | — | — | NE 3 | — | ENE 3 | N 5 | NW 3 | NNE 5 | SW 4 | WNW 2 | SW 5 | WSW 3 | — | — | — | — | — | — |
565 | — | — | — | 3 | — | 7 | 51 | 2 | 16 | 5 | 1 | 14 | 3 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 95 | 0 | 0 | 0 | 1 | 1 | 137 | 1 | 1 | 1 | 1 | 176 | 143 | 1 | 1 | 60 | 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.











