Surf Forecasts:
Windang Island surf forecast from 15 Sep 2026:
- Best quality surf: Thursday 17 Sep, 10AM (local time) - 7ft (2.2m), 10s period, SSE swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 10PM (local time) - 11ft (3.5m), 10s period, SSE swell with 2,413 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 10AM (local time) - 7ft (2.2m), 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 Thursday (Sep 17) at 10AM. The primary swell is predicted to be 2.2m and 10s period with a secondary swell of 0.1m and 13s. 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 3.5m 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 0.4m 3s period and expected on Sunday (Sep 20) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Thu 17th Sep) | 7ft (2.2m) 10s |
| Best Surf | 10AM (Thu 17th Sep) | 7ft (2.2m) 10s |
| Most Powerful | 10PM (Wed 16th Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Windang Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. We've got a bit of a mixed bag coming our way. The next week and a half looks pretty average, but there are a couple of days that will have the crew scrambling for their boards if they can get the timing right. Water temp sits around 65°, which is a touch warmer than normal for this time of year, so you won’t need a thick suit.
The first real chance for a wave will be early on Wednesday, September 16th up at Windang Island. The models are showing a solid 10ft south swell creeping in with a 10-second period. That’s a decent amount of power and the wind is cross-offshore out of the SSW, so the face should be clean. But look, that’s expert-only territory. Anything over 8ft at a reef and point setup like this one is not for the faint of heart. If you're a beginner, stay well clear. The afternoon gets lumpy with the wind swinging cross-shore, so the morning window is your only window.
Thursday morning, September 17th is looking like the standout of this whole run. The swell drops to a much more manageable 7ft from the SSE, still with a solid 10-second period. With a light SSW cross-off breeze, the conditions will be clean. This is your best bet for a proper session. Crowds are only sometimes an issue here, so you might have a bit of room. By the afternoon the wind swings onshore, so get it while it's good.
After that, we hit a bit of a flat spell with a couple of small, weak days. Saturday morning, September 19th gives us a tiny 3ft south swell with glassy conditions. It’s surfable if you’re desperate, but it’s really just a longboard cruiser wave.
The next real pulse arrives a week later, on Tuesday, September 22nd morning. Another solid 8ft south swell, a bit shorter period at 8 seconds, but the energy is strong. The wind is clean and cross-off from the SW, so the wave quality will be there. Again, that size is for advanced surfers only.
Outside of those windows, the sea breeze and onshore winds mess things up for most afternoons, and the week heading into the end of September looks pretty messy with onshore winds and small, weak swell. The best advice I can give is to circle Thursday the 17th and maybe Tuesday the 22nd on your calendar.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Tue afternoon. Warm (max 20°C on Tue morning, min 8°C on Wed night). Winds decreasing (fresh winds from the S on Wed morning, calm by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Sun morning, min 16°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | NE 7 | SSE 6 | S 9 | S 10 | S 10 | S 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 | S 9 | SSE 9 | S 9 | S 10 | S 7 | SSE 9 | SSE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 50 | 90 | 1256 | 1818 | 1725 | 2155 | 825 | 488 | 315 | 295 | 211 | 110 | 113 | 87 | 43 | 28 | 27 | 17 | 155 | 471 | 678 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross-off | cross | cross-off | cross-off | on | cross-off | on | cross-on | off | glassy | cross | off | cross | cross-off | cross-off | cross-on | cross-on | cross |
High Tide | 10:38AM1.40m | 11:02PM1.09m | 11:18AM1.36m | 11:49PM0.98m | 12:04PM1.30m | 00:46AM0.90m | 12:59PM1.24m | 2:00AM0.85m | 2:06PM1.22m | 3:22AM0.85m | 3:16PM1.23m | 4:29AM0.90m | 4:17PM1.27m | ||||||||
Low Tide | 5:06PM0.30m | 4:48AM0.38m | 5:58PM0.37m | 5:25AM0.47m | 6:58PM0.43m | 6:10AM0.54m | 8:09PM0.47m | 7:10AM0.59m | 9:24PM0.46m | 8:27AM0.61m | 10:27PM0.42m | 9:41AM0.58m | 11:15PM0.36m | ||||||||
 |  |  |  | |  | | |  | | | | | | | | | | |  |  | |
 | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — | 5:48 | — | — |
 | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — |
mm | — | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 20 | 18 | 12 | 14 | 14 | 13 | 14 | 13 | 11 | 18 | 20 | 17 | 26 | 26 | 19 | 28 | 28 | 23 | 19 | 16 | 13 |
Feels °C | 18 | 15 | 8 | 6 | 6 | 6 | 10 | 10 | 9 | 14 | 17 | 13 | 22 | 22 | 16 | 25 | 25 | 20 | 17 | 13 | 8 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | ENE 14 | NE 12 | E 13 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 | S 9 | SSE 9 | S 9 | S 10 | S 7 | SSE 9 | S 15 |
| kJ | 50 | 38 | 7 | 20 | 6 | 3 | 825 | 488 | 315 | 295 | 211 | 110 | 113 | 87 | 43 | 28 | 27 | 17 | 155 | 471 | 18 |
Swell 2 Height (m) Direction Period (s) | S 9 | E 13 | E 14 | — | E 15 | — | E 13 | E 13 | E 13 | SSE 18 | SSE 17 | SSE 16 | SSE 17 | SSE 17 | S 17 | E 11 | NE 3 | S 6 | NE 4 | NE 4 | — |
| kJ | 15 | 13 | 4 | — | 4 | — | 3 | 3 | 3 | 109 | 101 | 51 | 57 | 28 | 6 | 2 | 2 | 7 | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | E 12 | — | S 16 | — | — | — | S 19 | S 19 | S 19 | E 12 | SE 6 | ENE 3 | NE 5 | NE 5 | E 12 | S 16 | S 18 | NE 4 | E 11 | E 9 | — |
| kJ | 3 | — | 5 | — | — | — | 7 | 7 | 7 | 3 | 10 | 1 | 3 | 1 | 3 | 5 | 7 | 2 | 3 | 1 | — |
Wind waves Height (m) Direction Period (s) | SSW 4 | SSE 6 | S 9 | S 10 | S 10 | S 10 | — | — | — | — | ENE 3 | WNW 2 | — | E 2 | NW 2 | NW 3 | NNE 3 | W 2 | — | — | SSE 8 |
| kJ | 3 | 90 | 1256 | 1818 | 1725 | 2155 | — | — | — | — | 3 | 1 | — | 1 | 1 | 1 | 8 | 1 | — | — | 678 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 1253 | 94 | 636 | 636 | 61 | 0 | 63 | 0 | 2 | 7 | 0 | 0 | 7 | 2 | 32 | 7 | 84 | 116 | 94 | 61 |
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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