Surf Forecasts:
Windang Island surf forecast from 7 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 10PM (local time) - 4.5ft (1.3m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 10PM (local time) - 13ft (4.0m), 10s period, S swell with 2,725 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 10PM (local time) - 4.5ft (1.3m), 9s period with S 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 Tuesday (Sep 08) at 10PM. The primary swell is predicted to be 1.3m and 9s period with a secondary swell of 0.9m and 7s. Another secondary swell of 0.3m and 2s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Windang Island 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 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 8th Sep) | 4.5ft (1.3m) 9s |
| Best Surf | 10PM (Tue 8th Sep) | 4.5ft (1.3m) 9s |
| Most Powerful | 10PM (Wed 9th Sep) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Windang Island over the next 16 days.
The Lowdown
Alright, Rusty here again, giving you the same read in feet and miles.
We’ve got a little gap to start – the first surf worth a mention is Tuesday morning, September 8th. That’s about a one day wait from now. The pattern overall is a bit up and down, with some decent swell pulses but wind that’ll keep you guessing.
Tuesday morning, September 8th sees a 7ft SSE swell, with a short 8-second period. The wind is cross-offshore from the SSW at 9 mph, which will keep the surface clean. The energy is moderate, reading 646. Not the longest period, so it won’t have that deep groundswell feel, but for a Tuesday morning session it’s worth a look. Water temp is around 64°F, about normal for this time of year.
Wednesday morning the 9th is a miss – SSW wind picks up to 16 mph, cross-off, but the swell drops to 4ft. Too small.
The first real standout is Thursday morning, September 10th. This is the early pick. You’ve got a 8ft S swell, period 10 seconds, pushing strong energy of 1551. The wind is cross-off from the SSW at 16 mph, so it’s clean. At 8ft, this is for the experienced crew – beginners stay on the beach. The swell direction is S, and the break likes SE, so it’s in the ballpark. Crowds are possible here, but with that size and clean wind, it’ll be worth sharing the lineup.
Friday morning, September 11th is also solid – 8ft S swell, 9 seconds, cross-off wind from the S at 9 mph. Energy still high at 1725.
Circle Thursday morning, September 17th – that’s a 8ft S swell, 9 seconds, cross-off SSW at 16 mph, clean. Good, but it’s a warm-up.
Now the big one – Friday morning, September 18th. This is the standout of the whole 16 days. You’re looking at an 12ft SSE groundswell, with a long 12-second period. The energy is massive at 3055. Wind is cross-off from the SSW at 16 mph, so it’ll be clean. At 12ft, this is expert territory only. That long period will give long, powerful sets and good shape – perfect for a reef and point like Windang Island. If you’ve got the skill, this is the session to target.
Saturday morning, September 19th steps down to a 6ft SSE swell with an 11-second period and light cross wind. Still fun, but not the highlight.
And Tuesday afternoon, September 22nd shows 5ft SE swell with a short 7-second period, but cross-off NNW wind at 6 mph and good conditions noted. A small, clean option to finish the run.
Bottom line: Thursday the 10th morning is your first clean 8ft+ chance. But if you want the real standout, make sure you’re free on Friday the 18th morning – just bring your big-wave gear and your nerves.
Rusty out.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon afternoon. Very mild (max 16°C on Mon afternoon, min 9°C on Wed night). Winds increasing (light winds from the E on Tue afternoon, fresh winds from the S by Wed afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Sun morning, min 11°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 | S 9 | SSE 8 | SSE 8 | S 8 | S 8 | S 8 | S 10 | S 10 | SSE 10 | SSE 10 | S 9 | SSE 9 | SSE 9 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | S 9 | NNE 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 336 | 1375 | 644 | 460 | 173 | 157 | 1300 | 1878 | 1461 | 1673 | 1219 | 1029 | 505 | 367 | 359 | 214 | 146 | 108 | 87 | 65 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross | cross-on | off | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off |
High Tide | 4:59PM1.53m | 5:58AM1.09m | 5:56PM1.59m | 6:46AM1.18m | 6:46PM1.62m | 7:29AM1.27m | 7:33PM1.61m | 8:09AM1.34m | 8:16PM1.55m | 8:47AM1.40m | 8:58PM1.46m | 9:24AM1.43m | 9:39PM1.34m | |||||||
Low Tide | 11:54PM0.14m | 11:28AM0.35m | 00:42AM0.07m | 12:24PM0.28m | 1:24AM0.04m | 1:15PM0.22m | 2:02AM0.04m | 2:03PM0.18m | 2:38AM0.07m | 2:49PM0.17m | 3:11AM0.13m | 3:34PM0.19m | 3:43AM0.21m | |||||||
 |  |  |  |  |  | |  | | |  | | | | | | | | | | |
 | — | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — | 6:01 | — | — | 6:00 | — | — |
 | 5:40 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 14 | 16 | 15 | 11 | 13 | 13 | 12 | 15 | 15 | 14 | 17 | 16 | 12 | 20 | 18 | 15 | 23 | 21 | 18 |
Feels °C | 11 | 7 | 12 | 13 | 8 | 8 | 5 | 4 | 9 | 9 | 10 | 15 | 15 | 11 | 15 | 14 | 12 | 17 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 11 | SSE 8 | S 8 | SE 7 | ESE 13 | ESE 11 | ESE 10 | SSE 22 | SSE 22 | SSE 9 | SSE 9 | SSE 9 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | S 9 | NE 6 |
| kJ | 2 | 9 | 2 | 460 | 173 | 42 | 17 | 49 | 33 | 160 | 45 | 692 | 505 | 367 | 359 | 214 | 146 | 108 | 87 | 25 |
Swell 2 Height (m) Direction Period (s) | NE 8 | — | — | E 10 | SE 7 | E 9 | E 9 | S 24 | SSE 23 | ESE 9 | E 15 | E 15 | E 14 | E 13 | SSE 18 | SSE 17 | NE 4 | SSE 18 | ENE 13 | S 9 |
| kJ | 2 | — | — | 2 | 69 | 7 | 2 | 11 | 52 | 17 | 4 | 4 | 4 | 14 | 66 | 28 | 10 | 30 | 17 | 64 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 10 | E 15 | E 17 | S 24 | E 16 | E 16 | ENE 15 | — | ENE 14 | E 16 | E 14 | E 14 | SSE 20 | E 13 | ENE 13 | E 13 |
| kJ | — | — | — | — | 8 | 4 | 6 | 11 | 5 | 5 | 21 | — | 19 | 5 | 15 | 16 | 40 | 14 | 17 | 13 |
Wind waves Height (m) Direction Period (s) | SSE 9 | S 9 | SSE 8 | — | NW 2 | S 8 | S 8 | S 10 | S 10 | SSE 10 | SSE 10 | S 9 | — | — | — | ENE 4 | NNW 2 | NE 4 | NE 5 | NNE 6 |
| kJ | 336 | 1375 | 644 | — | 1 | 157 | 1300 | 1878 | 1461 | 1673 | 1219 | 1029 | — | — | — | 16 | 1 | 7 | 43 | 65 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 63 | 14 | 13 | 60 | 0 | 15 | 834 | 15 | 61 | 302 | 14 | 2 | 22 | 0 | 7 | 119 | 0 | 7 | 26 | 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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