
Surf Forecasts:
Shark Island (Cronulla) surf forecast from 9 Sep 2026:
- Best quality surf: Thursday 10 Sep, 7AM (local time) - 8ft (2.5m), 9s period, S swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 1AM (local time) - 11ft (3.5m), 10s period, S swell with 2,473 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 7AM (local time) - 8ft (2.5m), 9s 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 (Sep 10) at 7AM. The primary swell is predicted to be 2.5m and 9s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.2m and 23s is also forecast. 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 3.5m 10s and forecast to arrive on Thursday (Sep 10) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Tuesday (Sep 15) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Thu 10th Sep) | 8ft (2.5m) 9s |
| Best Surf | 7AM (Thu 10th Sep) | 8ft (2.5m) 9s |
| Most Powerful | 1AM (Thu 10th Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
Right, mate, Rusty here. Let’s have a look at what’s on offer at Shark Island (Cronulla) over the next few weeks. It’s a reef break that’s fairly exposed to a southerly swell, and it needs an offshore from the south-east to really line up. The water temp is sitting right on average for this time of year at 64°, so nothing unusual there.
The start of the period is a bit of a write-off. Wednesday the 9th is a non-starter—big, windy, and messy. Thursday morning the 10th is where it first starts to look interesting. There’s a moderate 7ft south swell with a 9-second period, and the wind is blowing offshore from the SSW at 15 mph. That’s clean, solid surf with moderate energy (861). This is the standout of the whole window. The size is a touch over 5ft, so it’s not for beginners, but for advanced surfers it’s a proper session. Crowds are sometimes a factor here, so keep that in mind.
Friday morning the 11th is still decent. A 5ft south swell, light offshore from the SSW at 6 mph, and the period pushes out to 10 seconds. The energy is moderate (475), and it’s clean. Not as punchy as Thursday, but a good follow-up session.
From Friday afternoon onward, things taper off. The swell drops, the wind goes onshore or cross-shore, and the conditions turn ordinary. Saturday the 12th morning has a 4ft south swell with a 12-second period, which is a bit long for this beachy reef, but the wind is light cross-shore, so it’s marginal. The energy is moderate (464). After that, it’s a long stretch of small, weak, and often blown-out surf. There’s a gap of several days with no real recommendations—from Saturday afternoon right through to the following week.
The next possible window shows up on Tuesday the 16th morning. The swell is small at 3ft from the SSE, with an 8-second period, but the wind goes glassy from the NE at 3 mph. That’s rare and worth noting. The energy is moderate (236), and it’s glassy. It’s not a standout, but if you’re desperate for a paddle and the conditions are calm, it’s a chance.
Thursday the 17th morning has a slight bump with a 4ft south swell, 8-second period, and a cross-off from the WNW at 9 mph. Clean, but the energy is still moderate (204) and the period is short, so it’s not a classic.
Right at the end of the forecast, on Thursday the 24th afternoon, there’s a big pulse of 8ft south swell with a 7-second period, but the wind is screaming cross-off from the south at 25 mph. That’s a strong breeze, and the energy is strong (817), but it’s a brutal, messy, stormy setup. That’s more for kite surfers than paddle surfers, and the scores reflect that—it’s poor quality.
So, if you’re planning a surf, Thursday the 10th morning is the clear winner. The rest of the week is a slow grind with small, weak swells, and the long-range stuff is unreliable. Keep an eye on the glassy morning of the 16th for a quiet, clean session if you’re not fussy about size.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu morning. Very mild (max 16°C on Wed morning, min 11°C on Wed night). Winds decreasing (strong winds from the S on Wed afternoon, calm by Fri night). | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Mon morning, min 14°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||
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) | S 8 | SSE 8 | S 10 | S 9 | S 9 | SSE 10 | S 10 | S 9 | SSE 9 | S 12 | S 11 | S 10 | S 10 | S 11 | NE 6 | S 11 | S 11 | ENE 6 | SSE 10 | S 9 | S 9 |
Wave Graph | |||||||||||||||||||||
133 | 844 | 2473 | 732 | 763 | 710 | 469 | 397 | 259 | 330 | 229 | 117 | 92 | 110 | 108 | 116 | 82 | 69 | 31 | 15 | 421 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | cross-off | off | off | cross | cross-off | cross | on | cross-on | cross-on | on | cross | cross-on | on | cross | cross-off | cross-off | cross-off |
High Tide | 6:51PM1.66m | 7:33AM1.31m | 7:37PM1.65m | 8:13AM1.38m | 8:20PM1.59m | 8:50AM1.44m | 9:01PM1.50m | 9:27AM1.47m | 9:42PM1.38m | 10:04AM1.47m | 10:22PM1.25m | 10:41AM1.44m | 11:04PM1.12m | ||||||||
Low Tide | 12:29PM0.28m | 1:28AM0.04m | 1:19PM0.22m | 2:06AM0.04m | 2:07PM0.18m | 2:41AM0.07m | 2:53PM0.17m | 3:15AM0.13m | 3:37PM0.19m | 3:47AM0.21m | 4:22PM0.24m | 4:19AM0.29m | 5:09PM0.31m | ||||||||
6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — | |
— | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 14 | 14 | 13 | 15 | 14 | 16 | 16 | 15 | 17 | 17 | 16 | 19 | 18 | 17 | 23 | 23 | 21 | 16 | 15 | 14 |
Feels °C | 11 | 4 | 4 | 8 | 10 | 11 | 14 | 14 | 16 | 14 | 13 | 13 | 15 | 14 | 16 | 18 | 18 | 20 | 12 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | S 8 | ESE 13 | ESE 11 | SE 10 | SSE 22 | SSE 10 | S 10 | S 9 | SSE 9 | S 12 | S 11 | S 10 | S 10 | S 11 | NE 6 | S 11 | S 11 | ENE 6 | ENE 6 | NE 6 | S 9 |
133 | 17 | 41 | 25 | 158 | 710 | 469 | 397 | 259 | 330 | 229 | 117 | 92 | 110 | 47 | 116 | 82 | 69 | 26 | 9 | 421 | |
Swell 2 Height (m) Direction Period (s) | SE 7 | E 17 | S 26 | SSE 23 | ESE 9 | ESE 9 | E 10 | E 14 | SSE 18 | SSE 19 | SSE 19 | ENE 4 | ENE 4 | ENE 13 | S 10 | NE 6 | ENE 13 | S 10 | SSE 10 | S 9 | NE 6 |
51 | 5 | 13 | 102 | 17 | 8 | 2 | 15 | 32 | 119 | 68 | 12 | 8 | 17 | 102 | 28 | 16 | 49 | 31 | 15 | 5 | |
Swell 3 Height (m) Direction Period (s) | E 9 | E 17 | — | E 9 | E 15 | S 22 | E 15 | E 10 | E 13 | E 14 | ENE 14 | SSE 19 | SSE 16 | E 9 | ENE 13 | ENE 13 | — | E 12 | E 12 | E 13 | E 14 |
6 | 6 | — | 2 | 4 | 9 | 4 | 2 | 14 | 15 | 19 | 72 | 25 | 2 | 17 | 17 | — | 12 | 3 | 13 | 14 | |
Wind waves Height (m) Direction Period (s) | SW 3 | SSE 8 | S 10 | S 9 | S 9 | — | — | — | — | — | ENE 3 | NE 4 | NE 4 | NE 4 | NE 6 | — | ENE 4 | — | — | SSE 5 | — |
4 | 844 | 2473 | 732 | 763 | — | — | — | — | — | 2 | 26 | 16 | 40 | 108 | — | 32 | — | — | 62 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 791 | 40 | 0 | 43 | 0 | 0 | 43 | 0 | 1 | 60 | 1 | 1 | 472 | 1 | 1 | 41 | 1 | 226 | 73 | 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.










