Windang Island Surf Break

Lat Long: 34.55° S 150.88° E

Windang Island Surf Forecast and Surf Report

Issued: 9 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Windang Island sea temperature is
18.0° C
0.8° 

Windang Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Windang Island surf forecast from 18 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 10PM (local time) - 3ft (0.9m), 7s period, E swell with cross-offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 1AM (local time) - 2ft (0.6m), 11s period, ESE swell with 102 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 10PM (local time) - 3ft (0.9m), 7s period with E 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 10PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.8m and 7s. Another secondary swell of 0.5m and 12s 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 0.6m 11s and forecast to arrive on Wednesday (Aug 19) at 1AM. 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 Tuesday (Aug 25) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Tue 18th Aug)3ft (0.9m) 7s
Best Surf10PM (Tue 18th Aug)3ft (0.9m) 7s
Most Powerful 1AM (Wed 19th Aug)2ft (0.6m) 11s

Table - best surf conditions forecast for Windang Island over the next 16 days.


The Lowdown

G’day, it’s Rusty here. Let’s cut to it—this stretch is mostly a waiting game. The next week and a half is pretty flat and ordinary, with hardly any swell and winds that are mostly cross-shore or onshore. You’ll see a lot of days with waves under 3 feet, and the energy is weak, often in the low double digits or even single digits (like 60 or 44). There are a few moments, like Friday the 21st morning with a clean 2.6ft easterly and light offshore wind, but it’s still pretty small. The standout is definitely the end of the run—Monday the 31st and Tuesday the 1st look like they’ll fire.

Windang Island (Illawarra) is the only break in the mix, and it’s a reef and point setup, exposed to the SE. For the first week, you’re mostly looking at poor surf—lots of 1ft to 2ft slop, short periods, and cross-onshore breezes messing it up. The water’s sitting at 64.4°F, which is about average for this time of year, so no drama there.

Now, let’s talk about the good stuff. From the 24th afternoon, things start to get a bit more interesting—a glassy 2.3ft with a bit more energy (106) turns into a surfable but still ordinary session. Then the 25th has a moderate offshore with 2.3ft (113). Still small, but cleaner.

The real kicker comes on Monday the 31st. The morning kicks off with a 6.9ft southerly, 10-second period, and a light offshore—energy jumps to 891. That’s a proper pulse. The afternoon gets even better: 9.8ft at 10 seconds with a moderate offshore, and the energy rockets to 2717. That’s strong, powerful surf. This is the standout, no question. It’s big enough to sort out the experienced crew—this is not for beginners. Over 8ft means experts only. The offshore wind is going to keep it clean, and the south direction suits the exposure.

Tuesday the 1st still has solid 9.8ft surf in the morning, but the wind turns cross-off, and it’s a bit more questionable on the tides—still a good day, but not as crisp as Monday. The energy is still strong at 1567. The afternoon drops off with a cross-on breeze and it gets choppy.

Then Wednesday the 2nd morning looks fantastic: 5.9ft south-east swell, glassy, with a strong energy reading of 1071. That’s another clean session, though smaller than Monday. The afternoon gets onshore and a bit messier at 7.2ft.

So here’s the call: if you can wait, Monday the 31st and Tuesday the 1st are your days. Monday looks the pick of the lot—big, clean, and powerful. The long-range promise is real, but keep in mind it’s a week and a half out, so it’s promising, not certain. Before that, it’s mostly a skimboard and kite-surf kind of stretch with the small, choppy conditions. Keep the faith—this one’s worth the wait.

Short Range Forecast

Light rain (total 2mm), mostly falling on Tue morning. Warm (max 22°C on Thu morning, min 12°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 20°C on Fri morning, min 12°C on Fri night). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
E
6
0.4
ESE
14
0.6
ESE
11
0.6
ESE
10
0.6
ESE
10
0.7
ESE
9
0.5
ESE
8
0.5
ESE
6
0.7
ENE
6
0.8
ENE
7
0.6
ENE
6
0.4
ENE
6
0.4
NE
6
0.3
S
8
0.5
S
4
0.3
SSE
17
0.4
S
9
0.5
S
10
0.5
S
10
0.7
ENE
8
0.4
S
9
Wave Graph
Metric surfscale
Energy kJ
79
61
102
82
74
70
37
24
35
50
26
14
8
12
9
57
24
48
48
52
25
Wind (km/h)
10
NE
15
ENE
10
NW
10
NNE
25
NE
10
NNW
10
N
10
ENE
10
NW
10
W
15
NW
15
W
5
SW
10
ESE
10
W
5
NNE
25
NE
10
NW
10
NNW
5
N
10
NW
Wind State
cross-on
cross-on
cross-off
cross
cross-on
cross-off
cross
cross-on
cross-off
off
cross-off
off
cross-off
on
off
cross-on
cross-on
cross-off
cross-off
glassy
cross-off
High Tide
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
5:50AM0.92m
5:44PM1.38m
Low Tide
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
11:07AM0.50m
00:38AM0.30m
light rain
part cloud
part cloud
clear
clear
part cloud
part cloud
light rain
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
light rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:31
6:31
6:30
6:28
6:28
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:27
5:28
5:28
5:29
5:30
5:30
5:30
 mm
1
1
1
8
Temp °C
17
16
14
18
17
15
22
18
16
20
19
16
18
17
14
18
17
14
22
21
16
Feels °C
14
13
12
15
12
12
18
17
15
19
17
13
15
16
13
15
13
12
20
21
15
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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