Surf Forecasts:
Windang Island surf forecast from 12 Sep 2026:
- Best quality surf: Thursday 17 Sep, 10PM (local time) - 7ft (2.2m), 9s period, SSE swell with offshore winds.
- Most powerful swell: Wednesday 16 Sep, 10PM (local time) - 13ft (4.0m), 10s period, S swell with 3,412 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 10PM (local time) - 2.5ft (0.8m), 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 Saturday (Sep 12) at 10PM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.3m and 20s. Another secondary swell of 0.6m and 4s 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 16) 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 0.9m 6s period and expected on Monday (Sep 14) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sat 12th Sep) | 2.5ft (0.8m) 10s |
| Best Surf | 10PM (Thu 17th Sep) | 7ft (2.2m) 9s |
| Most Powerful | 10PM (Wed 16th Sep) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Windang Island over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's have a look at what's on the table for Windang Island over the next couple of weeks.
First up, the water out there is sitting at 64°, which is pretty much spot on for this time of year, nothing unusual there.
Right, let’s get into it. Honestly, the start of this outlook is a bit of a write-off. We’ve got a run of poor conditions from Saturday the 12th right through until Monday the 14th. It’s small, cross-onshore, and choppy, with combined swell energy barely making a dent, only reaching around 348 (moderate wave energy) at best. Not worth paddling out for.
We’re waiting until Wednesday the 16th of September for the first real pulse of energy. A strong S/SSW swell fills in, pushing 10 ft on the Wednesday morning. The combined energy rockets up to 1539 (strong wave energy). The wind is a fresh cross-offshore breeze, keeping the surface clean. However, this is solid, powerful stuff over 8 ft, so it's strictly for the experienced crew only. The swell period is 9 seconds, so it has a bit of grunt behind it. That same energy holds into Thursday morning (17th) with 10 ft and clean conditions again, energy at 1645.
But hold on a minute – the real standout comes in on Friday the 18th of September. After the big southerly energy backs off a touch, we get a really nice window. Friday morning sees the swell drop to a much more manageable 5 ft from the ESE, but the magic is in the wind: glassy, absolute zero wind, with a combined energy of 613 (moderate wave energy) and the period stretching out to 10 seconds. The forecast score here is the best on offer across the whole outlook. This is your window for clean, fun waves at Windang Island. The crowds can be a factor here sometimes, so an early session will pay off.
Saturday the 19th is still worth a look with a glassy 4 ft swell from the ESE and a period of 11 seconds, though the energy drops to 440. After that, the size really drops away again, with tiny surf and mostly unfavourable winds through the end of the month, though we do see another spike of bigger SS swell on Tuesday the 22nd, hitting 12 ft with combined energy of 2324 (very strong wave energy). The wind is cross, making it lumpy – that one’s a big, messy beast for experts only.
So, to sum it up: mid-week is big and clean for the experts, but the absolute cherry on top is that glassy Friday morning session on the 18th.
- Rusty
Short Range ForecastMostly dry. Warm (max 24°C on Mon morning, min 13°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Tue afternoon. Very mild (max 19°C on Tue morning, min 9°C on Tue night). Winds increasing (light winds from the S on Tue morning, fresh winds from the SSW by Wed morning). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 11 | SSE 10 | SSE 9 | S 10 | S 10 | S 10 | NE 7 | NE 6 | NE 7 | NE 7 | SSE 6 | S 8 | S 9 | S 10 | S 10 | SSE 9 | SSE 9 | SSE 8 | ESE 10 | ESE 10 | ESE 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 259 | 170 | 118 | 108 | 100 | 108 | 109 | 92 | 106 | 73 | 49 | 1188 | 1500 | 2451 | 3019 | 1635 | 1094 | 601 | 402 | 458 | 444 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off | cross | cross-on | off | cross | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | off | glassy | cross-on | off |
High Tide | 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 | 12:04PM1.30m | 00:46AM0.90m | 12:59PM1.24m | 2:00AM0.85m | ||||||||
Low Tide | 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 | 5:25AM0.47m | 6:58PM0.43m | 6:10AM0.54m | 8:09PM0.47m | ||||||||
 |  |  | | | | | |  | |  |  |  | |  | | | | | | | |
 | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 5 | — | — | 1 | — | — | — | — | — | — |
Temp °C | 19 | 18 | 14 | 21 | 19 | 16 | 24 | 22 | 17 | 19 | 18 | 12 | 13 | 14 | 12 | 14 | 14 | 11 | 18 | 19 | 16 |
Feels °C | 15 | 14 | 12 | 16 | 14 | 14 | 20 | 18 | 16 | 18 | 16 | 7 | 3 | 5 | 3 | 9 | 10 | 8 | 14 | 16 | 13 |
Swell 1 Height (m) Direction Period (s) | SSE 11 | SSE 10 | SSE 9 | S 10 | S 10 | ENE 6 | NE 7 | S 10 | NE 7 | NE 7 | NE 7 | NE 7 | ENE 14 | — | ENE 13 | E 13 | E 13 | SSE 8 | ESE 10 | ESE 10 | ESE 11 |
| kJ | 259 | 170 | 118 | 108 | 100 | 69 | 54 | 56 | 106 | 73 | 39 | 7 | 20 | — | 17 | 3 | 3 | 601 | 402 | 458 | 444 |
Swell 2 Height (m) Direction Period (s) | SSE 19 | SSE 20 | NE 4 | SSE 16 | ENE 13 | S 10 | S 11 | E 13 | SSE 10 | S 9 | S 9 | E 14 | ENE 14 | — | — | NE 13 | NE 13 | E 10 | S 8 | S 9 | S 8 |
| kJ | 70 | 77 | 9 | 26 | 17 | 108 | 85 | 13 | 31 | 15 | 6 | 4 | 19 | — | — | 7 | 7 | 51 | 205 | 154 | 89 |
Swell 3 Height (m) Direction Period (s) | ENE 14 | ENE 14 | SSE 19 | ENE 13 | — | E 13 | E 13 | S 15 | E 12 | E 13 | E 13 | — | — | — | — | — | S 15 | E 13 | S 18 | SSE 18 | SSE 17 |
| kJ | 19 | 19 | 74 | 17 | — | 13 | 13 | 4 | 12 | 3 | 3 | — | — | — | — | — | 4 | 13 | 6 | 31 | 29 |
Wind waves Height (m) Direction Period (s) | — | ENE 3 | NNW 2 | NE 5 | NE 5 | NNE 6 | NE 7 | NE 6 | — | SW 3 | SSE 6 | S 8 | S 9 | S 10 | S 10 | SSE 9 | SSE 9 | — | — | NE 4 | N 4 |
| kJ | — | 6 | 1 | 8 | 47 | 72 | 109 | 92 | — | 2 | 49 | 1188 | 1500 | 2451 | 3019 | 1635 | 1094 | — | — | 13 | 9 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 7 | 119 | 0 | 14 | 412 | 0 | 14 | 27 | 0 | 2 | 14 | 61 | 800 | 636 | 94 | 61 | 22 | 0 | 0 | 20 | 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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