Surf Forecasts:
Windang Island surf forecast from 13 Sep 2026:
- Best quality surf: Thursday 17 Sep, 7PM (local time) - 6.5ft (2.0m), 9s period, SSE swell with cross-offshore winds.
- Most powerful swell: Thursday 17 Sep, 4AM (local time) - 11ft (3.5m), 10s period, S swell with 2,541 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 1AM (local time) - 4.5ft (1.4m), 6s period with NE 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 Monday (Sep 14) at 1AM. The primary swell is predicted to be 1.4m and 6s period with a secondary swell of 0.9m and 6s. Another secondary swell of 0.7m and 10s 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 3.5m 10s and forecast to arrive on Thursday (Sep 17) at 4AM. 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 4s period and expected on Sunday (Sep 20) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 14th Sep) | 4.5ft (1.4m) 6s |
| Best Surf | 7PM (Thu 17th Sep) | 6.5ft (2.0m) 9s |
| Most Powerful | 4AM (Thu 17th Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Windang Island over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s break down what Windang Island’s got coming over the next couple of weeks. It’s a reef and point set-up, picks up swell well. Water temp is about 65°, right where it should be for this time of year, so nothing wild there.
We’re starting off slow. Sunday the 13th is a dud – 2ft SSE swell, but the NE wind is blowing 12 mph cross-on, chopping it up. Monday the 14th morning offers a tiny clean window: 2ft S swell with a light NNW cross-off breeze at 6 mph. It’s surfable, but nothing to write home about. That clean spell doesn’t last; Monday afternoon and all of Tuesday are poor with weak energy and chop.
Then things heat up. Wednesday the 16th morning, a solid 10ft S groundswell rolls in, period 10 seconds. Wind is SSW at 22 mph, cross-off, keeping it clean. Combined swell energy is pumping at 1708 – that’s strong. This is for the experts only; over 8ft is serious stuff. Thursday the 17th morning holds similar size at 10ft S, wind a bit lighter at 12 mph from the SSW, still cross-off, and energy hits 2801. That’s the standout window for the big-wave crew.
Friday the 18th morning is a sneaky gem. The swell drops to a clean 5ft from the SSE, period 9 seconds, but the wind is dead calm – glassy, with a light E breeze at 3 mph. That’s the best combo of size and perfect conditions in the whole outlook. Moderate energy at 345. This is the one to circle for the average surfer.
After that, it fades fast. Saturday the 19th sees a tiny 1ft SSE groundswell with a very long 17-second period. It’s glassy in the morning, but that’s barely a ripple. Sunday the 20th is flat – 0.7ft swell, energy down to 36 and 20. Monday the 21st brings a spike of 8ft S swell, but the wind is cross-on from the SSE at 9 mph, making it choppy. Not worth it.
The second week is pretty grim. Tuesday the 22nd through to Monday the 28th is mostly small, weak swells with poor wind – cross-on or onshore, lots of chop. A few clean moments on the 25th and 26th mornings with light cross-off breezes, but the swell is only 2ft to 3ft from the NE, with weak energy (57 to 93). There’s a pulse on Sunday the 27th morning with 5ft NE swell and onshore wind, but it’s marginal. Honestly, after that Friday the 18th morning, the window slams shut.
Best on offer: Friday the 18th morning – 5ft SSE swell, glassy, clean. If you’re after the big stuff, Thursday the 17th morning – 10ft S, clean and powerful, but experts only.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Tue night. Warm (max 25°C on Mon morning, min 8°C on Tue night). Winds increasing (light winds from the NW on Sun night, fresh winds from the S by Wed morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Sat morning, min 8°C on Wed night). Winds decreasing (fresh winds from the S on Wed afternoon, calm by Sat morning). | |||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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 10 | NE 6 | S 11 | S 10 | NE 6 | NE 7 | NE 7 | S 9 | S 10 | S 10 | S 10 | S 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | S 9 | SE 11 | SE 11 | S 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 106 | 162 | 85 | 56 | 52 | 47 | 30 | 1215 | 1702 | 2252 | 2340 | 1662 | 739 | 436 | 336 | 301 | 102 | 57 | 59 | 25 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross-on | off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-off | glassy | cross-on | off | glassy | cross-on | cross-off |
High Tide | 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 | 2:06PM1.22m | 3:22AM0.85m | |||||||
Low Tide | 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 | 7:10AM0.59m | 9:24PM0.46m | ||||||||
 |  | |  |  | |  |  | | | | | | | | | | | | | |
 | — | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — | 5:50 | — | — |
 | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — |
mm | — | — | — | — | — | — | 1 | 3 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 25 | 24 | 21 | 20 | 19 | 10 | 13 | 14 | 12 | 15 | 14 | 11 | 19 | 20 | 17 | 25 | 24 | 20 |
Feels °C | 16 | 16 | 22 | 20 | 19 | 17 | 16 | 3 | 4 | 5 | 4 | 10 | 10 | 8 | 16 | 17 | 13 | 20 | 19 | 17 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | ENE 6 | NE 7 | S 10 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 12 | E 13 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 |
| kJ | 106 | 71 | 46 | 56 | 52 | 47 | 30 | 7 | 2 | 6 | 3 | 1129 | 739 | 436 | 336 | 301 | 102 | 55 | 37 | 25 |
Swell 2 Height (m) Direction Period (s) | ENE 13 | S 10 | S 11 | ENE 13 | SSE 10 | S 9 | S 9 | E 14 | E 14 | E 15 | — | E 13 | E 13 | E 13 | E 13 | SSE 17 | SE 8 | SE 11 | SE 11 | SE 9 |
| kJ | 17 | 106 | 85 | 17 | 31 | 15 | 14 | 4 | 4 | 4 | — | 3 | 3 | 3 | 3 | 30 | 48 | 55 | 58 | 12 |
Swell 3 Height (m) Direction Period (s) | — | E 13 | E 13 | S 15 | E 12 | E 12 | E 13 | S 16 | — | — | — | S 19 | S 19 | — | S 18 | ESE 10 | SSE 16 | SSE 17 | SSE 17 | SSE 16 |
| kJ | — | 13 | 13 | 5 | 12 | 3 | 3 | 5 | — | — | — | 7 | 7 | — | 6 | 11 | 53 | 57 | 59 | 25 |
Wind waves Height (m) Direction Period (s) | NE 5 | NE 6 | — | NE 6 | — | WSW 2 | SE 4 | S 9 | S 10 | S 10 | S 10 | S 10 | — | — | — | NE 3 | WNW 2 | WNW 2 | NE 3 | — |
| kJ | 45 | 162 | — | 45 | — | 1 | 20 | 1215 | 1702 | 2252 | 2340 | 1662 | — | — | — | 2 | 1 | 1 | 2 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 88 | 0 | 0 | 27 | 0 | 2 | 127 | 61 | 933 | 636 | 94 | 14 | 22 | 0 | 0 | 14 | 0 | 0 | 14 | 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.
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