Surf Forecasts:
Shark Island (Cronulla) surf forecast from 9 Sep 2026:
- Best quality surf: Thursday 10 Sep, 7AM (local time) - 10ft (3.0m), 9s period, S swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 1AM (local time) - 11ft (3.5m), 10s period, S swell with 2,612 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 7AM (local time) - 10ft (3.0m), 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 3.0m and 9s period with a secondary swell of 2.5m and 9s. Another secondary swell of 0.4m and 10s 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 1.4m 6s 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) | 10ft (3.0m) 9s |
| Best Surf | 7AM (Thu 10th Sep) | 10ft (3.0m) 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
Alright folks, Rusty here. Let’s have a look at what’s shaping up for us around Shark Island (Cronulla). It’s a bit of a waiting game to be honest, but there’s a proper window of quality for the crew that can handle it.
The water temp is sitting at 64°, which is pretty much bang on average for this time of year, so no surprises there.
The first real call to action is Thursday the 10th, early. We’ve got a solid 8ft S swell rolling in with a period of 9 seconds, and the wind is blowing offshore from the SSW at 16 mph. That’s a clean, powerful combo for this reef. The combined energy is strong at 2144, so there’s plenty of grunt. This is for the advanced crew only – anything over 8ft gets proper serious, and Shark Island is a reef, so respect it. Thursday morning is the standout, no question.
Thursday afternoon drops off a fair bit, and Friday morning the 11th is still surfable with 5ft S swell and light cross-off winds, but the energy is way down at 496. It’s a decent session, but not the top pick.
After that, we hit a long dry patch. From Saturday morning through to the morning of Saturday the 19th, it’s all small, weak, or onshore junk. There’s nothing worth paddling out for – a solid 10-day gap where the best you’ll get is a few knee-high sliders with poor conditions.
Things finally show a pulse again on Saturday morning the 19th, with 6ft S swell. The winds are cross-off from the SSW at 16 mph, which cleans it up, but the combined energy is only 594, and the conditions are described as marginal. It’s surfable, but don’t expect the world.
The real hidden gem in this whole outlook is Thursday morning the 24th. It’s a week and a half away, so keep that in mind, but the forecast is for 6ft S swell with glassy conditions – the wind is a whisper from the ENE. The energy is moderate at 609, and with a 9-second period, it should set up nicely on the reef. For a Thursday morning with no crowds, that’s a proper little session if you can sneak away.
So, to wrap it up: Thursday the 10th morning is the big one for the experienced guys. Thursday the 24th morning is a very promising, cleaner option further out. The rest of the window is a whole lot of nothing. Stay patient.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Wed morning, min 10°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). Winds increasing (light winds from the NNW on Sat morning, fresh winds from the S by Mon night). | ||||||||||||||||||||
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 7 | S 10 | S 9 | S 9 | SSE 10 | S 10 | S 9 | SSE 10 | S 12 | S 11 | S 10 | S 11 | S 10 | NNE 6 | S 11 | S 10 | ENE 6 | S 9 | E 13 | SSE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 108 | 821 | 2612 | 1124 | 794 | 725 | 479 | 397 | 276 | 336 | 233 | 117 | 143 | 141 | 112 | 112 | 80 | 67 | 40 | 13 | 422 |
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 | cross-off | cross | cross-off | cross | on | cross-on | cross-on | on | cross | cross-on | on | cross-off | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 14 | 14 | 15 | 14 | 15 | 15 | 15 | 17 | 17 | 16 | 19 | 19 | 17 | 23 | 23 | 20 | 16 | 15 | 14 |
Feels °C | 11 | 5 | 4 | 8 | 10 | 11 | 12 | 13 | 15 | 14 | 13 | 14 | 15 | 15 | 17 | 17 | 18 | 18 | 13 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | S 8 | ESE 13 | ESE 11 | S 9 | SSE 22 | SSE 10 | S 10 | S 9 | SSE 10 | S 12 | S 11 | S 10 | S 11 | S 10 | NE 6 | S 11 | S 10 | ENE 6 | ENE 6 | NE 6 | SSE 9 |
| kJ | 108 | 17 | 41 | 893 | 158 | 725 | 479 | 397 | 276 | 336 | 233 | 117 | 143 | 141 | 47 | 112 | 80 | 67 | 25 | 8 | 422 |
Swell 2 Height (m) Direction Period (s) | SE 7 | E 17 | S 26 | SE 10 | ESE 9 | ESE 9 | E 15 | E 14 | SSE 18 | SSE 19 | SSE 18 | ENE 4 | ENE 5 | ENE 13 | S 10 | ENE 6 | ENE 13 | S 10 | E 12 | E 13 | ENE 5 |
| kJ | 51 | 5 | 13 | 25 | 17 | 8 | 17 | 4 | 33 | 120 | 66 | 13 | 9 | 17 | 100 | 22 | 16 | 48 | 12 | 13 | 3 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 17 | — | SSE 23 | E 9 | S 22 | — | E 10 | E 13 | E 14 | ENE 14 | SSE 20 | SSE 17 | ENE 13 | ENE 13 | ENE 13 | E 10 | E 12 | — | — | E 14 |
| kJ | 6 | 6 | — | 102 | 2 | 9 | — | 2 | 14 | 15 | 19 | 75 | 27 | 35 | 17 | 17 | 2 | 12 | — | — | 15 |
Wind waves Height (m) Direction Period (s) | SW 2 | SSE 7 | S 10 | S 9 | S 9 | — | — | — | — | — | E 3 | NNE 5 | NE 5 | NE 4 | NNE 6 | — | ENE 4 | — | S 9 | SSE 6 | — |
| kJ | 1 | 821 | 2612 | 1124 | 794 | — | — | — | — | — | 5 | 37 | 23 | 17 | 112 | — | 20 | — | 40 | 131 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 791 | 46 | 0 | 82 | 0 | 0 | 43 | 0 | 1 | 60 | 1 | 1 | 137 | 1 | 1 | 41 | 0 | 232 | 120 | 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.
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