Surf Forecasts:
Windang Island surf forecast from 17 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 1AM (local time) - 3ft (0.9m), 7s period, ESE swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 7PM (local time) - 2.5ft (0.8m), 9s period, ESE swell with 113 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 1AM (local time) - 3ft (0.9m), 7s period with ESE 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 (Aug 18) at 1AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.6m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Windang Island in the next 16 days are 0.8m 9s and forecast to arrive on Wednesday (Aug 19) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 5s period and expected on Friday (Aug 21) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 18th Aug) | 3ft (0.9m) 7s |
| Best Surf | 1AM (Tue 18th Aug) | 3ft (0.9m) 7s |
| Most Powerful | 7PM (Wed 19th Aug) | 2.5ft (0.8m) 9s |
Table - best surf conditions forecast for Windang Island over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's cookin' for Windang Island over the next couple weeks.
Right off the bat, I gotta be honest with ya – it's a pretty grim stretch for a while. We're lookin' at over a week of small, messy, or just plain wonky conditions before anything worth paddlin' out for shows up. The water temp is sittin' around 64°, which is pretty normal for this time of year, so no shocker there.
The first real glimmer comes on the morning of Friday, August 28. That's a full 11 days out, so keep that in mind – it's a long-range promise, not a guarantee. But man, if it lines up, it could be the standout of the outlook. We're talkin' a solid 6ft swell out of the NE, with clean, glassy conditions – dead calm wind. That combo is rare and it's gonna make Windang Island (Illawarra) look real, real good. The short period of 8 seconds means it's windswell, so it won't have that groundswell punch, but for a point-and-reef setup like this, that NE direction is what we wanna see. Combined swell energy hits a solid 688 – that's a moderate, punchy amount of power. Afternoon gets a bit more size at 7ft but picks up a light cross-onshore breeze, which'll mess with the face a little, so the early session is the one.
The other day worth a mention is Saturday, August 29 in the morning. Swell drops to 3ft from the ENE, but the wind flips back to glassy again. Perfect conditions for a small-wave grovel. Combined energy is 243, so there's enough push for a longboard or a fish. Just don't expect much size.
Before that? Honestly, it's flat or junk. There's a couple of mornings on the 20th, 21st, and 24th that look clean with offshore or glassy wind, but the swell is tiny – under 3ft – and the energy readings are low (down in the 20s and 30s). You could probably get wet on a foamie, but it ain't worth writing home about.
Also, I gotta point out that on Wednesday, August 26 afternoon, that swell height is 3ft from the SSE with a 11-second period, but it's choppy with a cross-onshore wind. Combined energy is 262, which is decent push, but the wind just kills it for clean surfing. On a reef setup like this, it might be more interesting for a kite session than paddle surfing.
To sum it up: the first 10 days are a write-off for decent waves. Keep an eye on that Friday the 28th morning – that's your best shot at something special.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Mon morning. Very mild (max 17°C on Wed morning, min 12°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Fri afternoon. Warm (max 21°C on Thu morning, min 10°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | S 9 | ESE 6 | ESE 7 | S 11 | ESE 14 | ESE 11 | ESE 10 | ESE 10 | ESE 9 | ESE 7 | E 6 | E 6 | E 6 | SSE 5 | ENE 6 | NE 6 | NE 6 | NE 6 | S 8 | NE 9 | S 10 |
Wave Graph | |||||||||||||||||||||
81 | 75 | 62 | 60 | 61 | 102 | 82 | 72 | 70 | 40 | 37 | 28 | 27 | 21 | 13 | 9 | 9 | 9 | 31 | 22 | 44 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | glassy | cross-on | cross-off | cross | cross-on | cross-off | cross-off | cross | off | cross-off | glassy | off | cross-off | cross-on | cross-off | cross-off | cross-on | off |
High Tide | 11:25AM1.33m | 11:33PM1.19m | 12:09PM1.31m | 00:20AM1.05m | 12:57PM1.28m | 1:17AM0.93m | 1:52PM1.25m | 2:28AM0.86m | 2:55PM1.25m | 3:49AM0.84m | 3:59PM1.27m | 4:58AM0.87m | 4:56PM1.32m | ||||||||
Low Tide | 5:35PM0.35m | 5:40AM0.30m | 6:32PM0.42m | 6:17AM0.40m | 7:36PM0.47m | 7:00AM0.48m | 8:51PM0.49m | 7:55AM0.53m | 10:06PM0.48m | 9:02AM0.56m | 11:09PM0.43m | 10:09AM0.54m | 11:58PM0.37m | ||||||||
6:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | 5:25 | — | — | 5:27 | — | — | 5:28 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | |
mm | 2 | 1 | 3 | 2 | — | — | — | — | — | — | — | 1 | — | 4 | 1 | — | — | — | — | — | — |
Temp °C | 15 | 15 | 13 | 15 | 16 | 14 | 17 | 17 | 16 | 21 | 21 | 17 | 17 | 14 | 13 | 16 | 16 | 14 | 20 | 19 | 15 |
Feels °C | 12 | 12 | 12 | 14 | 14 | 13 | 14 | 13 | 13 | 18 | 18 | 16 | 16 | 14 | 12 | 13 | 14 | 13 | 16 | 16 | 12 |
Swell 1 Height (m) Direction Period (s) | ESE 6 | S 8 | ESE 7 | ESE 6 | ESE 6 | ESE 8 | ESE 7 | ESE 10 | NE 5 | ESE 7 | E 6 | E 6 | E 6 | SSE 5 | ENE 6 | NE 6 | NE 6 | NE 6 | S 8 | SSE 6 | S 10 |
75 | 52 | 62 | 60 | 60 | 60 | 56 | 72 | 34 | 40 | 37 | 28 | 27 | 17 | 13 | 9 | 9 | 9 | 31 | 12 | 44 | |
Swell 2 Height (m) Direction Period (s) | S 9 | S 12 | S 8 | S 11 | S 10 | ESE 11 | ESE 10 | SE 6 | ESE 9 | NE 5 | E 10 | S 12 | S 5 | ENE 6 | SSE 4 | S 9 | S 8 | S 5 | NE 6 | NE 9 | NE 9 |
81 | 27 | 52 | 55 | 35 | 102 | 82 | 19 | 70 | 14 | 2 | 3 | 12 | 21 | 2 | 6 | 5 | 4 | 6 | 20 | 19 | |
Swell 3 Height (m) Direction Period (s) | E 10 | ENE 10 | E 10 | ESE 10 | ESE 14 | S 10 | S 8 | S 8 | S 7 | E 11 | S 13 | E 10 | S 11 | S 10 | SE 6 | SE 4 | S 5 | S 9 | SSE 15 | S 11 | S 6 |
8 | 9 | 8 | 11 | 61 | 29 | 12 | 6 | 4 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 6 | 21 | 22 | 6 | |
Wind waves Height (m) Direction Period (s) | — | ESE 6 | — | — | — | NE 3 | ENE 5 | ENE 6 | NE 5 | NNW 2 | NE 5 | — | — | — | — | — | — | — | — | — | — |
— | 75 | — | — | — | 5 | 14 | 31 | 62 | 1 | 21 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 14 | 0 | 0 | 26 | 0 | 7 | 268 | 0 | 7 | 7 | 13 | 2 | 2 | 285 | 362 | 302 | 130 | 7 | 26 | 2 |
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.











