
Surf Forecasts:
Shark Island (Cronulla) surf forecast from 20 Jul 2026:
- Best quality surf: Friday 24 Jul, 4AM (local time) - 7ft (2.1m), 8s period, S swell with offshore winds.
- Most powerful swell: Friday 24 Jul, 7AM (local time) - 6.5ft (2.0m), 9s period, S swell with 670 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 4AM (local time) - 4.5ft (1.4m), 10s 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 Tuesday (Jul 21) at 4AM. The primary swell is predicted to be 1.4m and 10s period with a secondary swell of 0.5m and 11s. Another secondary swell of 0.4m and 3s is also forecast. 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 2.0m 9s and forecast to arrive on Friday (Jul 24) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Thursday (Jul 23) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 21st Jul) | 4.5ft (1.4m) 10s |
| Best Surf | 4AM (Fri 24th Jul) | 7ft (2.1m) 8s |
| Most Powerful | 7AM (Fri 24th Jul) | 6.5ft (2.0m) 9s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Righto, let’s have a look at what’s coming up for the next couple of weeks. It’s a bit of a mixed bag, but there are a couple of windows that’ll have you reaching for your board.
We start off on Monday the 20th of July with a bit of energy building. The morning session is looking the best of the early days. You’ve got a solid 6ft swell rolling in from the ENE, with a period of 11 seconds, giving it some decent grunt. The combined energy is moderate at 778, and the wind is light from the WNW, blowing cross-off, which will keep the surface clean. The water temp is sitting at 63°F, which is pretty much normal for this time of year. The standout here is Shark Island (Cronulla). This reef break handles the direction well, and with those clean conditions, the morning of the 20th is the pick of the first week. Mind you, it’s an advanced spot, so it’s not for the faint-hearted.
The pattern then drops off for a few days. Tuesday and Wednesday see the swell back right off, with heights dropping to 3ft or less. The wind on Wednesday afternoon turns glassy, which is a rare treat, but the waves are just too small to get excited about. Thursday is a write-off with a strong WSW breeze, and the swell is tiny.
Then we get a bit of a lift on Friday the 24th of July. The morning brings a new 6ft S swell with a period of 9 seconds – short period, so it’ll be a bit lumpy, but the combined energy is moderate at 583. The wind is light from the west, cross-off, so it’ll be clean enough. It’s surfable, but not the best of the run.
The real standout of the outlook is on Monday the 3rd of August. That morning, a massive 13ft S swell hits, with a period of 11 seconds. The combined energy is a whopping 6325 – that’s strong to very strong wave energy. This is big, powerful stuff. The wind is from the NNW at 9 mph, cross-shore, so it won’t be perfectly clean, but the energy is undeniable. For experienced surfers only – this is well over 8ft, so it’s a big day. The afternoon drops to 8ft, still only for experts. The caveat here is that the period is 11 seconds, so it’s a groundswell, but it’s not a long-period beast that becomes too straight. The reef at Shark Island should handle this size, but it’s going to be a serious session.
There’s a gap of several days of poor surf between the 20th and the 24th, and then again after the 27th until the 3rd of August. The second week’s offering is that big Monday the 3rd, and then it settles back down. The long-range Monday the 3rd is the one to circle – it’s promising, but remember, long-range forecasts can change, so keep an eye on it.
So, overall: the morning of Monday the 20th is your best early bet for clean, solid waves. The absolute standout, if you’ve got the skills, is the morning of Monday the 3rd of August for a big, powerful swell. Stay safe out there.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 11°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Thu morning, min 8°C on Thu night). Winds decreasing (fresh winds from the WSW on Thu afternoon, calm by Fri morning). | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | S 8 | S 9 | S 9 | SSE 15 | S 11 | S 12 | S 12 | S 11 | S 10 | S 10 |
Wave Graph | |||||||||||||||||||||
631 | 643 | 469 | 314 | 307 | 218 | 175 | 163 | 126 | 94 | 71 | 148 | 533 | 286 | 380 | 418 | 322 | 535 | 375 | 279 | 313 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | cross | cross | on | cross | cross-off | glassy | cross-off | cross-off | cross-off | off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | off | cross | cross-off |
High Tide | 1:05PM1.28m | 1:02AM1.17m | 1:57PM1.29m | 1:59AM1.03m | 2:51PM1.30m | 3:05AM0.94m | 3:46PM1.32m | 4:16AM0.90m | 4:39PM1.35m | 5:22AM0.90m | 5:30PM1.40m | 6:15AM0.93m | 6:15PM1.45m | ||||||||
Low Tide | 7:10PM0.47m | 7:19AM0.32m | 8:19PM0.51m | 8:02AM0.41m | 9:32PM0.51m | 8:50AM0.47m | 10:42PM0.48m | 9:44AM0.50m | 11:41PM0.43m | 10:40AM0.50m | 00:29AM0.37m | 11:33AM0.48m | 1:11AM0.31m | ||||||||
6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | |
— | 5:06 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:08 | — | — | 5:09 | — | — | 5:09 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 14 | 16 | 16 | 15 | 19 | 20 | 16 | 18 | 16 | 10 | 13 | 15 | 10 | 18 | 18 | 13 | 16 | 16 | 13 |
Feels °C | 13 | 12 | 12 | 13 | 13 | 13 | 16 | 18 | 12 | 12 | 8 | 3 | 11 | 10 | 3 | 15 | 16 | 7 | 12 | 12 | 9 |
Swell 1 Height (m) Direction Period (s) | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | S 8 | S 9 | S 9 | S 11 | S 11 | S 12 | S 12 | S 11 | S 10 | S 10 |
631 | 643 | 469 | 314 | 307 | 218 | 175 | 163 | 126 | 94 | 71 | 148 | 533 | 286 | 282 | 418 | 322 | 535 | 375 | 279 | 313 | |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | S 10 | S 5 | ENE 9 | ENE 8 | NE 8 | SSE 15 | ENE 8 | SSE 18 | ENE 8 | ENE 8 | NE 8 | NE 8 |
138 | 97 | 57 | 55 | 31 | 17 | 17 | 20 | 8 | 8 | 2 | 45 | 28 | 18 | 380 | 14 | 63 | 6 | 6 | 2 | 2 | |
Swell 3 Height (m) Direction Period (s) | SE 15 | SE 15 | SE 14 | SE 14 | SSE 14 | SE 13 | S 13 | — | — | E 9 | S 9 | S 9 | S 17 | S 21 | ENE 8 | S 20 | ENE 8 | E 8 | — | N 6 | — |
9 | 8 | 8 | 7 | 21 | 7 | 3 | — | — | 2 | 7 | 43 | 22 | 35 | 14 | 30 | 14 | 1 | — | 1 | — | |
Wind waves Height (m) Direction Period (s) | — | — | NNE 3 | — | NE 4 | NNE 4 | — | — | WNW 2 | — | — | SW 4 | — | — | WSW 2 | WNW 3 | — | — | — | — | — |
— | — | 4 | — | 10 | 19 | — | — | 1 | — | — | 7 | — | — | 1 | 1 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 5 | 1 | 1 | 85 | 1 | 0 | 0 | 1 | 1 | 29 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 |
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.










