Windang Island surfForecast / NSW – Illawarra / Australia

information circle12 Day Weather and Surf, issued 10 am Thursday 18 Dec 2025 AEDT
Forecast update in hr  min  s Forecast update imminent
Windang Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Windang Island sea temperature is
21.6° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Windang Island this week:

The surf forecast for Windang Island over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 18) at 11PM. The primary swell is predicted to be 1.8m and 7s period with a secondary swell of 1.3m and 7s. Another secondary swell of 0.4m 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 12 days are 2.1m 10s and forecast to arrive on Thursday (Dec 25) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Saturday (Dec 20) at 5AM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 18th Dec)6ft (1.8m) 7s
Best Surf 5AM (Mon 22nd Dec)6ft (1.8m) 7s
Most Powerful11AM (Thu 25th Dec)7ft (2.1m) 10s

Table - best surf conditions forecast for Windang Island over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 33°C on Fri afternoon, min 21°C on Sat morning). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Sun afternoon. Warm (max 30°C on Sun morning, min 16°C on Tue night). Winds increasing (calm on Mon morning, fresh winds from the S by Tue night).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.5
S
1.6
NE
1.8
NE
1
ENE
1
NE
0.7
NE
0.9
SSE
0.9
ENE
0.5
NE
0.6
ENE
1.4
NE
1.2
SSE
1.7
SSE
1.4
SSE
0.7
SSE
0.5
S
0.7
S
1.6
S
1.3
SSE
0.9
S
1.1
SSE
Period(s) (?)106787767776599710106775
Wave
Graph
(?)Metric surfscale
Energy kJ (?)531592921171075356902632132874423184750871941868852
Wind
(km/h)
20
NE
25
NE
5
WSW
5
ENE
25
ESE
10
WNW
15
N
30
NNE
5
WSW
15
N
10
ENE
20
S
15
ENE
15
ENE
10
NE
5
NE
5
NNE
15
S
15
NE
10
NE
20
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
off
glasscross-
on
offcrosscross-
on
offcrosscross-
on
crossononcross-
on
cross-
on
cross-
on
crosscross-
on
cross-
on
cross
High Tide
/ height (m)
8:29PM
0.98
8:24AM
1.51
9:10PM
0.99
9:02AM
1.53
9:49PM
1.00
9:40AM
1.55
10:28PM
1.00
10:18AM
1.54
11:09PM
1.01
10:56AM
1.52
11:50PM
1.02
11:35AM
1.48
12:35AM
1.04
Low Tide
/ height (m)
2:38PM
0.25
1:49AM
0.41
3:17PM
0.21
2:28AM
0.41
3:56PM
0.19
3:07AM
0.40
4:34PM
0.18
3:45AM
0.41
5:12PM
0.17
4:25AM
0.42
5:50PM
0.17
5:07AM
0.45
6:28PM
0.18
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise5:37--5:39--5:39--5:39--5:39--5:39--5:41--
Sunset-8:06--8:07--8:07--8:07--8:07--8:08--8:08-
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
clear
rain showers
thunderstorm
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
Rain (mm)
---------13----------
Temp. °C292824323327252923302825222120272920252825
Feels °C (?)272623323226252925312826201920273015222726
  • Map Icons:
  • Break
  • 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 12 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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