Surf Forecasts:
Shark Island (Cronulla) surf forecast from 10 Aug 2026:
- Best quality surf: Thursday 13 Aug, 10AM (local time) - 7ft (2.1m), 9s period, S swell with offshore winds.
- Most powerful swell: Tuesday 11 Aug, 7PM (local time) - 5.5ft (1.7m), 11s period, S swell with 688 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 1AM (local time) - 4.5ft (1.3m), 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 Wednesday (Aug 12) at 1AM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.5m 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 1.7m 11s and forecast to arrive on Tuesday (Aug 11) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Sunday (Aug 16) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 12th Aug) | 4.5ft (1.3m) 10s |
| Best Surf | 10AM (Thu 13th Aug) | 7ft (2.1m) 9s |
| Most Powerful | 7PM (Tue 11th Aug) | 5.5ft (1.7m) 11s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
G’day, it’s Rusty again. Let’s break it down in imperial.
Shark Island (Cronulla) is a reef for advanced surfers only, and this 16-day look is mostly a struggle. The water temperature is 62°F, and that’s about 3°F colder than average for this time of year, so it’s noticeably chilly.
We start Monday 10 August with nothing rideable. The wind is cross or cross-off and the swell is messy. There’s a big lull through the first few days. The one real highlight hits Thursday 13 August in the morning.
Thursday morning: swell runs about 7ft from the south, 9 second period, with light offshore wind out of the southwest. The combined energy is strong at 974, so plenty of push. Expect very good, clean surf. The afternoon drops to 6ft but the wind goes cross-shore, so get out early.
Friday 14 August morning has clean 4ft south swell with light offshore wind, moderate energy at 214—surfable but nothing exciting. After that, from Saturday 15 August through the middle of the next week, the forecast is mostly poor. Too small, wrong wind, or both.
Wednesday 19 August morning brings a clean 4ft southeast swell with a light cross-off breeze, moderate energy (353), but the period is short at 8 seconds so it’s just okay.
Looking way out to Monday 24 August afternoon, there’s a late window with clean offshore wind and 4ft east-northeast swell, moderate energy (359), and good conditions expected. That’s two weeks away so keep your fingers crossed.
Best call: Thursday 13 August morning. Everything else is a waiting game.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Tue morning, min 11°C on Tue night). Winds decreasing (strong winds from the NW on Mon morning, light winds from the WNW by Wed morning). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Sat morning. Very mild (max 16°C on Thu morning, min 10°C on Thu night). Winds increasing (light winds from the SW on Fri morning, fresh winds from the S by Sat afternoon). | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | ENE 9 | ENE 9 | ENE 10 | ENE 9 | S 12 | S 10 | S 9 | S 9 | S 8 | S 9 | S 9 | S 8 | S 9 | S 9 | SSE 7 | S 6 | S 8 | SSE 8 | SSE 6 | S 12 | S 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 497 | 404 | 115 | 78 | 675 | 345 | 173 | 104 | 66 | 640 | 465 | 138 | 189 | 210 | 85 | 54 | 88 | 127 | 103 | 26 | 209 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross | cross-off | off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross |
High Tide | 6:13PM1.70m | 7:05AM1.13m | 7:06PM1.77m | 7:55AM1.20m | 7:55PM1.79m | 8:40AM1.27m | 8:42PM1.76m | 9:23AM1.32m | 9:26PM1.67m | 10:05AM1.35m | 10:09PM1.54m | 10:46AM1.37m | 10:52PM1.38m | ||||||||
Low Tide | 11:36AM0.34m | 1:06AM0.06m | 12:34PM0.28m | 1:54AM-0.01m | 1:28PM0.23m | 2:38AM-0.03m | 2:19PM0.20m | 3:19AM-0.02m | 3:08PM0.20m | 3:57AM0.03m | 3:57PM0.23m | 4:34AM0.11m | 4:46PM0.29m | ||||||||
 | |  |  | | | |  | | | | | | |  |  | | | |  |  | |
 | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — |
 | — | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | 1 | 1 | 3 | 3 | — |
Temp °C | 16 | 14 | 15 | 19 | 19 | 13 | 17 | 18 | 14 | 16 | 15 | 13 | 15 | 15 | 15 | 14 | 15 | 15 | 15 | 15 | 15 |
Feels °C | 6 | 6 | 8 | 13 | 14 | 7 | 13 | 11 | 9 | 13 | 11 | 9 | 13 | 12 | 12 | 11 | 9 | 9 | 11 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 10 | ENE 9 | S 12 | S 10 | S 9 | S 9 | S 8 | S 8 | S 9 | S 8 | S 9 | S 9 | SSE 7 | S 6 | S 8 | ENE 10 | ENE 10 | S 12 | S 11 |
| kJ | 497 | 404 | 115 | 78 | 675 | 345 | 173 | 104 | 66 | 295 | 465 | 138 | 189 | 210 | 84 | 54 | 88 | 18 | 20 | 26 | 209 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | E 13 | — | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | SSE 21 | ENE 9 | ENE 9 | S 13 | S 18 | ENE 10 | E 4 |
| kJ | 3 | 3 | 3 | — | 49 | 47 | 50 | 52 | 49 | 31 | 29 | 29 | 18 | 18 | 85 | 17 | 17 | 31 | 6 | 21 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 12 | — | — | — | S 14 | S 13 | S 20 | — | S 15 | S 18 | SSE 21 | ENE 9 | SSE 15 | S 19 | S 18 | S 18 | E 8 | ENE 10 |
| kJ | — | — | — | 3 | — | — | — | 4 | 3 | 8 | — | 18 | 7 | 44 | 17 | 22 | 7 | 6 | 24 | 1 | 20 |
Wind waves Height (m) Direction Period (s) | NNW 4 | NW 5 | WNW 4 | SW 5 | — | W 3 | NW 3 | — | WSW 3 | S 9 | — | WSW 2 | — | — | — | — | — | SSE 8 | SSE 6 | SSE 6 | ESE 5 |
| kJ | 34 | 60 | 20 | 41 | — | 8 | 2 | — | 3 | 640 | — | 1 | — | — | — | — | — | 127 | 103 | 90 | 13 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 85 | 135 | 190 | 32 | 1 | 0 | 0 | 17 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 29 | 95 | 0 | 0 | 472 | 132 |
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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