
Surf Forecasts:
Shark Island (Cronulla) surf forecast from 8 Sep 2026:
- Best quality surf: Friday 11 Sep, 1AM (local time) - 10ft (3.0m), 10s period, S swell with offshore winds.
- Most powerful swell: Wednesday 9 Sep, 10PM (local time) - 13ft (4.0m), 10s period, SSE swell with 2,898 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 4PM (local time) - 6ft (1.9m), 8s period with SSE 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 (Sep 08) at 4PM. The primary swell is predicted to be 1.9m and 8s period with a secondary swell of 0.2m and 10s. 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 4.0m 10s and forecast to arrive on Wednesday (Sep 09) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Wednesday (Sep 09) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Tue 8th Sep) | 6ft (1.9m) 8s |
| Best Surf | 1AM (Fri 11th Sep) | 10ft (3.0m) 10s |
| Most Powerful | 10PM (Wed 9th Sep) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Shark Island (Cronulla) over the next 16 days.
The Lowdown
G’day, Rusty here, and I’ve got a look at what’s heading our way for the next couple of weeks. It’s a bit of a mixed bag, so let’s get into it.
We’re kicking off with some solid action early on, but it’s not all smooth sailing. The standout period is Tuesday the 8th of September through to Friday the 11th, with the pick of the bunch being Friday morning. That’s where we’ll see the best conditions.
Shark Island (Cronulla) – This reef break is the main show. On Tuesday the 8th, we’ve got a 8 ft SSE swell rolling in with a 9-second period. The combined energy is moderate at 841, and while the wind is a cross-off from the S at 15 mph, it’s clean. The water temp is sitting at 64°, which is bang on average for this time of year. Tuesday afternoon drops a bit to 6 ft SSE, still clean with a light breeze. Not too shabby.
Wednesday the 9th is a write-off – the morning drops to 3 ft, and by the afternoon the wind screams up to 28 mph from the S with a 10 ft swell, but it’s a messy, poor setup. No good.
Thursday the 10th brings a big 10 ft swell from the S with a 9-second period, and the energy jumps to 1501 – that’s strong. But the wind is a fresh cross-off around 19 mph, and the conditions are marginal. This is getting into expert territory (over 8 ft), so only for the experienced crew. The afternoon stays similar at 8 ft S, but still a bit rough.
Now, Friday the 11th morning is the real gem. The swell drops to a more manageable 7 ft from the SSE, with a 10-second period (decent groundswell), and the combined energy is moderate at 848. But the magic is in the wind – a gentle 9 mph offshore from the SSW. That’ll groom the reef beautifully. This is a standout session for advanced surfers, with clean, lined-up waves. The reef setup will handle the long period well, so expect some proper barrels. The afternoon sees a cross-shore wind and a slight drop in quality, but the morning is where it’s at.
After Friday, the surf fades fast. Saturday the 12th has a 5 ft SSE swell but the wind swings onshore by the afternoon, and it’s all downhill from there. There’s a long gap of poor-to-mediocre waves from Saturday the 12th right through to Sunday the 20th of September. The swell drops to under 3 ft most days, with onshore or cross-shore winds and low energy (mostly under 200). Not worth a paddle.
There’s a slight flicker on Sunday the 20th of September morning – a 3 ft S swell with a gentle 9 mph offshore from the WSW. The energy is weak at 182, and the conditions are “surfable but very ordinary.” It’s a small, clean option for a longboard or a mellow session, but nothing to get excited about.
The rest of the outlook runs into the 23rd of September with tiny swells and onshore winds. It’s a flat spell, folks. A few days of glassy conditions on the 23rd morning, but the swell is only 2 ft – not enough to do much.
So, bottom line: get out on Friday the 11th morning for the best of the run. After that, it’s a waiting game.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu night. Very mild (max 16°C on Tue morning, min 10°C on Tue night). Winds increasing (light winds from the ENE on Tue afternoon, strong winds from the S by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sun morning, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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) | SSE 9 | SSE 8 | S 9 | S 8 | SSE 8 | S 10 | S 9 | S 10 | S 10 | SSE 10 | SSE 10 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | S 9 | S 9 | S 10 | S 12 | S 11 | S 10 |
Wave Graph | |||||||||||||||||||||
839 | 486 | 252 | 108 | 953 | 2664 | 1374 | 1611 | 1586 | 842 | 644 | 415 | 327 | 281 | 154 | 110 | 110 | 94 | 134 | 114 | 80 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross | off | cross | on | cross | cross-on | on | cross | cross | on | cross-off |
High Tide | 6:01PM1.63m | 6:50AM1.21m | 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 | ||||||||
Low Tide | 11:33AM0.36m | 00:46AM0.08m | 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 | ||||||||
6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — | |
— | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 16 | 15 | 14 | 15 | 15 | 14 | 14 | 15 | 14 | 16 | 15 | 14 | 18 | 16 | 15 | 20 | 18 | 17 | 26 | 25 | 22 |
Feels °C | 11 | 12 | 11 | 9 | 5 | 4 | 6 | 8 | 9 | 14 | 13 | 14 | 15 | 12 | 13 | 15 | 12 | 15 | 22 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | E 11 | SSE 8 | S 9 | S 8 | ESE 13 | ESE 11 | ESE 10 | S 22 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | S 9 | S 9 | NE 6 | S 12 | S 11 | S 10 |
2 | 486 | 252 | 108 | 17 | 41 | 19 | 236 | 1155 | 842 | 644 | 415 | 327 | 281 | 154 | 110 | 110 | 35 | 134 | 114 | 80 | |
Swell 2 Height (m) Direction Period (s) | — | E 10 | SE 7 | SE 7 | E 17 | NE 16 | SSE 23 | ESE 9 | S 22 | E 15 | E 14 | E 13 | SSE 19 | SSE 18 | NE 4 | NE 5 | ENE 13 | S 10 | NE 6 | ENE 13 | NE 5 |
— | 8 | 69 | 51 | 5 | 10 | 103 | 17 | 9 | 4 | 4 | 14 | 69 | 113 | 13 | 6 | 17 | 94 | 18 | 16 | 18 | |
Swell 3 Height (m) Direction Period (s) | — | N 9 | E 10 | E 10 | E 17 | — | E 16 | E 15 | E 15 | E 10 | ENE 14 | S 18 | E 14 | E 14 | SSE 19 | SSE 16 | ENE 13 | SSE 13 | ENE 13 | — | E 12 |
— | 2 | 8 | 7 | 6 | — | 5 | 5 | 4 | 2 | 18 | 6 | 15 | 15 | 125 | 53 | 17 | 34 | 17 | — | 12 | |
Wind waves Height (m) Direction Period (s) | SSE 9 | — | — | SW 2 | SSE 8 | S 10 | S 9 | S 10 | S 10 | — | — | — | — | ENE 3 | NNE 4 | — | NE 4 | — | — | ENE 6 | — |
839 | — | — | 1 | 953 | 2664 | 1374 | 1611 | 1586 | — | — | — | — | 9 | 29 | — | 15 | — | — | 20 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 73 | 0 | 1 | 0 | 379 | 46 | 43 | 263 | 0 | 0 | 0 | 0 | 1 | 60 | 1 | 1 | 85 | 1 | 1 | 15 | 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.










