Surf Forecasts:
Shark Island (Cronulla) surf forecast from 23 Aug 2026:
- Best quality surf: Thursday 27 Aug, 4AM (local time) - 5ft (1.6m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 1AM (local time) - 4.5ft (1.3m), 11s period, S swell with 403 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 4AM (local time) - 4ft (1.2m), 8s period with ENE 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 Wednesday (Aug 26) at 4AM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.3m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Shark Island (Cronulla) in the next 16 days are 1.3m 11s and forecast to arrive on Friday (Aug 28) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Wednesday (Aug 26) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 26th Aug) | 4ft (1.2m) 8s |
| Best Surf | 4AM (Thu 27th Aug) | 5ft (1.6m) 8s |
| Most Powerful | 1AM (Fri 28th Aug) | 4.5ft (1.3m) 11s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Alright mates, Rusty here. Let’s talk about Shark Island (Cronulla) for the next couple of weeks.
Honestly, it’s a pretty bleak start. The next week and a half is mostly a bust. You’re looking at a long stretch of poor conditions with onshore winds and weak, short-period swells. The water’s about average temperature for this time of year, nothing to write home about.
The one session that’s got my blood pumping is Saturday morning, the 5th of September. That’s the real standout. We’ve got a clean offshore breeze from the SW, which is dreamy for this reef. The swell is a small but solid 3ft from the SSE, with a very long 16-second period. That’s deep ocean groundswell, boys. The combined energy is strong (553). It’s going to be glassy, clean, and the reef will love that long period. Expect crowds sometimes, as it’s a well-known spot.
Before that, Thursday morning the 27th of August has a 5ft S swell and a light cross-offshore breeze, keeping things tidy. The combined energy is moderate (358). It’s surfable, but not the same quality as that Saturday morning.
The rest of the window is full of onshore junk and weak energy. Don’t waste your time.
So, circle that Saturday the 5th of September. That’s the one. It’s a long-range call, so it’s promising but not locked in yet. Keep an eye on it.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Tue afternoon. Warm (max 21°C on Tue morning, min 13°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Fri morning, min 13°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 10 | S 10 | S 10 | NE 6 | NE 6 | NE 7 | NE 8 | ENE 8 | ENE 8 | S 8 | S 8 | S 8 | S 11 | S 9 | S 11 | SSE 10 | SSE 10 | SSE 10 | SSE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 202 | 118 | 89 | 226 | 113 | 235 | 182 | 143 | 105 | 341 | 283 | 195 | 403 | 162 | 338 | 205 | 210 | 183 | 136 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross-on | on | glassy | glassy | cross-on | cross-on |
High Tide | 5:53AM0.95m | 5:50PM1.41m | 6:35AM1.01m | 6:31PM1.48m | 7:12AM1.09m | 7:09PM1.53m | 7:47AM1.16m | 7:45PM1.56m | 8:21AM1.24m | 8:21PM1.56m | 8:55AM1.31m | 8:57PM1.53m | |||||||
Low Tide | 00:02AM0.38m | 11:12AM0.51m | 00:42AM0.31m | 12:01PM0.44m | 1:16AM0.24m | 12:44PM0.38m | 1:49AM0.18m | 1:24PM0.33m | 2:19AM0.14m | 2:04PM0.29m | 2:50AM0.12m | 2:45PM0.26m | 3:21AM0.12m | ||||||
 |  | |  |  |  |  |  |  |  |  | | | | | | | |  | |
 | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — |
 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — |
mm | — | — | — | — | — | 5 | 3 | 4 | 1 | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 16 | 19 | 18 | 17 | 21 | 18 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 17 | 16 | 16 | 17 | 17 | 16 |
Feels °C | 13 | 16 | 14 | 14 | 18 | 15 | 15 | 13 | 12 | 12 | 14 | 12 | 14 | 15 | 13 | 16 | 16 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | S 10 | ENE 6 | S 10 | NE 6 | ENE 6 | ENE 7 | NE 8 | ENE 8 | ENE 8 | S 8 | S 8 | S 8 | S 11 | S 9 | S 11 | SSE 10 | SSE 10 | SSE 10 | SSE 9 |
| kJ | 202 | 39 | 89 | 116 | 49 | 131 | 182 | 143 | 105 | 341 | 283 | 195 | 403 | 162 | 338 | 205 | 210 | 183 | 136 |
Swell 2 Height (m) Direction Period (s) | NE 4 | S 10 | S 17 | S 10 | S 9 | S 9 | S 9 | S 11 | S 11 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | NE 8 | ENE 4 | ENE 8 | ENE 8 | ENE 9 |
| kJ | 20 | 118 | 6 | 46 | 27 | 27 | 14 | 9 | 9 | 56 | 54 | 40 | 70 | 45 | 78 | 13 | 26 | 48 | 45 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 8 | — | S 18 | NE 9 | S 16 | S 16 | S 16 | — | S 15 | SSE 15 | SSE 14 | — | SSE 12 | SSW 9 | ENE 8 | NE 4 | S 16 | NE 4 |
| kJ | 7 | 7 | — | 6 | 21 | 19 | 21 | 5 | — | 4 | 21 | 41 | — | 83 | 8 | 25 | 4 | 5 | 3 |
Wind waves Height (m) Direction Period (s) | NE 5 | NE 6 | ENE 5 | NE 6 | NE 6 | NE 7 | NW 3 | S 4 | S 6 | — | — | — | — | — | ENE 8 | NE 4 | NE 4 | ENE 8 | NE 4 |
| kJ | 47 | 86 | 54 | 226 | 113 | 235 | 2 | 13 | 106 | — | — | — | — | — | 75 | 23 | 10 | 90 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 137 | 1 | 15 | 15 | 1 | 0 | 62 | 29 | 0 | 5 | 1 | 1 | 85 | 0 | 0 | 2 | 2 |
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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