Surf Forecasts:
Windang Island surf forecast from 10 Sep 2026:
- Best quality surf: Friday 11 Sep, 7AM (local time) - 5ft (1.6m), 10s period, SSE swell with offshore winds.
- Most powerful swell: Wednesday 16 Sep, 7AM (local time) - 8ft (2.5m), 9s period, S swell with 1,171 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 7AM (local time) - 5ft (1.6m), 10s period with SSE swell.
Best Forecast Surf Conditions for Windang Island this week:
The surf forecast for Windang Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 11) at 7AM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 0.1m and 15s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Windang Island in the next 16 days are 2.5m 9s and forecast to arrive on Wednesday (Sep 16) 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 0.4m 3s period and expected on Tuesday (Sep 15) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 11th Sep) | 5ft (1.6m) 10s |
| Best Surf | 7AM (Fri 11th Sep) | 5ft (1.6m) 10s |
| Most Powerful | 7AM (Wed 16th Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Windang Island over the next 16 days.
The Lowdown
G’day, Rusty here, and I’ve got a look at Windang Island for the next couple of weeks. This is a reef and point set-up that’s exposed to the south-east, so it needs the right direction to fire. The water temp is about average for this time of year, so nothing too wild in that department.
We’ve got a bit of a tease at the start. Friday morning, 11 September, is the standout in the whole run. The swell is 5ft from the SSE, with a period of 10 seconds, and the combined energy is sitting at 441 (moderate wave energy). The wind is glassy, ESE at 3 mph, so the surface will be clean as a whistle. The conditions are set to be good, and that’s your best bet. But by Friday afternoon, the wind swings onshore from the E at 6 mph, and it’s poor. So don’t sleep in.
Saturday morning, 12 September, the swell drops to 3ft, still from the SSE, with a long-ish 11-second period, but the wind is a cross-on from the NE at 3 mph. It’s marginal, and the afternoon gets choppy with a stronger NE breeze. Sunday and Monday are small and messy, with cross-onshore winds and poor surf – not worth paddling out here.
Then there’s a real gap. From Tuesday, 15 September, through to Friday, 18 September, it’s mostly poor or marginal, with the swell bouncing around but the wind never lining up. On Wednesday morning, 16 September, the swell jumps to 8ft from the S with a 9-second period and energy at 942 (strong wave energy), but the wind is a moderate cross-shore, making it choppy and marginal. That size is for experts only, and the conditions don’t help.
The next real chance comes later. Saturday, 19 September, the swell is tiny at 2ft to 2ft, but the wind swings offshore and cross-offshore, so the surface is clean. The energy is weak (94 to 151), but it’s surfable and ordinary. Sunday, 20 September, morning looks the best of the second week: 3ft from the S, 10-second period, with a clean cross-offshore breeze from the NW at 6 mph. The energy is 238 (moderate), and the conditions are good for a small wave session. The afternoon stays clean with offshore wind.
After that, it fades again. The week of 21 September onwards is mostly poor, with onshore winds and tiny swell. The last day in the window, Saturday, 26 September, morning is glassy but only 2ft from the S – not much to work with.
So, the real standout is Friday morning, 11 September. Get out there early for clean, chest-high waves from the SSE at Windang Island. The second week’s best is Sunday, 20 September, for a clean, small-wave session. The rest of the run is quiet, with a big gap of poor surf from the 15th to the 18th. Rusty out.
Short Range ForecastMostly dry. Warm (max 20°C on Sun morning, min 12°C on Thu night). Winds increasing (calm on Fri afternoon, fresh winds from the NE by Sun morning). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 26°C on Mon morning, min 12°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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 10 | SSE 10 | SSE 9 | SSE 10 | SSE 11 | SSE 10 | SSE 9 | SSE 11 | S 10 | NE 6 | S 11 | S 10 | SSE 10 | ENE 6 | SSE 7 | SSE 8 | S 9 | S 8 | SSE 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 640 | 435 | 314 | 230 | 254 | 170 | 118 | 150 | 102 | 106 | 83 | 55 | 31 | 26 | 102 | 639 | 919 | 355 | 435 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | on | off | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off | cross | cross | cross-off | cross-on | cross-on | cross | cross | cross-on | off |
High Tide | 8:09AM1.34m | 8:16PM1.55m | 8:47AM1.40m | 8:58PM1.46m | 9:24AM1.43m | 9:39PM1.34m | 10:00AM1.43m | 10:19PM1.21m | 10:38AM1.40m | 11:02PM1.09m | 11:18AM1.36m | 11:49PM0.98m | |||||||
Low Tide | 2:02AM0.04m | 2:03PM0.18m | 2:38AM0.07m | 2:49PM0.17m | 3:11AM0.13m | 3:34PM0.19m | 3:43AM0.21m | 4:19PM0.24m | 4:15AM0.29m | 5:06PM0.30m | 4:48AM0.38m | 5:58PM0.37m | |||||||
 |  | |  | |  | | | | |  | | | |  |  | | | | |
 | — | 6:01 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — |
 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — |
Temp °C | 12 | 17 | 16 | 13 | 18 | 17 | 14 | 20 | 19 | 17 | 26 | 25 | 22 | 18 | 15 | 13 | 15 | 14 | 11 |
Feels °C | 9 | 15 | 14 | 12 | 14 | 14 | 13 | 15 | 15 | 15 | 24 | 23 | 20 | 16 | 12 | 9 | 10 | 10 | 9 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 9 | SSE 10 | SSE 11 | SSE 10 | SSE 9 | SSE 11 | S 10 | NE 6 | NE 6 | S 10 | ENE 6 | ENE 6 | NE 6 | NE 6 | E 14 | E 12 | SSE 10 |
| kJ | 640 | 435 | 314 | 230 | 254 | 170 | 118 | 150 | 102 | 33 | 31 | 55 | 21 | 26 | 12 | 1 | 4 | 3 | 435 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | E 15 | E 14 | SSE 19 | SSE 19 | SSE 20 | NE 4 | SSE 16 | ENE 13 | S 10 | S 11 | ENE 13 | SSE 10 | S 9 | E 13 | E 14 | ENE 14 | E 15 | E 13 |
| kJ | 7 | 4 | 4 | 35 | 70 | 76 | 8 | 26 | 17 | 106 | 83 | 17 | 31 | 14 | 13 | 14 | 19 | 4 | 14 |
Swell 3 Height (m) Direction Period (s) | S 21 | E 10 | E 10 | E 13 | ENE 14 | ENE 14 | SSE 19 | ENE 13 | — | E 13 | E 13 | S 15 | E 12 | E 12 | — | S 17 | — | — | S 19 |
| kJ | 9 | 2 | 2 | 14 | 19 | 19 | 74 | 17 | — | 13 | 13 | 5 | 12 | 3 | — | 6 | — | — | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ENE 3 | NE 4 | NE 4 | NE 5 | NE 6 | — | NE 6 | — | S 6 | SSE 7 | SSE 8 | S 9 | S 8 | — |
| kJ | — | — | — | — | — | 3 | 13 | 4 | 41 | 98 | — | 36 | — | 22 | 102 | 639 | 919 | 355 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 73 | 0 | 20 | 73 | 0 | 7 | 412 | 0 | 7 | 7 | 2 | 14 | 94 | 61 | 61 | 14 | 0 |
Best forecast wave conditions in Illawarra | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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Information about the Windang Island Surf forecast
The above surf forecast table for Windang Island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Windang Island can be found by selecting the local surf guide option on the grey menu. Our Windang Island 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 (Windang Island) 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 Windang Island 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.
Windang Island is 7 km (4 miles) from the city of Port Kembla. If you plan a holiday in Illawarra, look for hotels and other accommodation in Port Kembla. Port Kembla has rooms for a wide range of budgets as well as car hire and transport links.
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