Windy Harbour surfForecast / WA – Far South / Australia

information circle12 Day Weather and Surf, issued 7 pm Tuesday 16 Dec 2025 AWST
Forecast update in hr  min  s Forecast update imminent
Windy Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Windy Harbour sea temperature is
20.1° C
(Which is 1.5°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Windy Harbour this week:

The surf forecast for Windy Harbour over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Dec 20) at 11PM. The primary swell is predicted to be 3.0m and 11s period with a secondary swell of 0.8m and 13s. Another secondary swell of 1.7m and 8s is also forecast. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Windy Harbour in the next 12 days are 4.0m 17s and forecast to arrive on Monday (Dec 22) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Wednesday (Dec 17) at 2AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sat 20th Dec)10ft (3.0m) 11s
Best Surf11PM (Sat 20th Dec)10ft (3.0m) 11s
Most Powerful 2PM (Mon 22nd Dec)13ft (4.0m) 17s

Table - best surf conditions forecast for Windy Harbour over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 20°C on Fri morning, min 12°C on Thu night). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Very mild (max 17°C on Fri night, min 12°C on Sat night). Winds decreasing (fresh winds from the S on Fri night, light winds from the ESE by Sat night).

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tue
23
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
2
2
1
2
!
0
!
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.2
SW
4
WSW
3.5
SW
2.5
SSW
1.7
SW
1
SW
1.1
SW
1
SW
1.2
SW
2
SSW
3.5
SSW
3
SSW
2.3
SW
2.2
SW
2.1
SW
2.4
SSW
3
SSW
4
SSW
4
SSW
3
SSW
2.5
SSW
Period(s) (?)1412119121211111114910121313131416151414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)598392131151177805263273224332160419471464149316321429185736068322656637612721
Wind
(km/h)
30
W
30
SW
25
SSW
25
SSE
25
SE
30
SE
25
E
20
SSE
25
SSE
30
S
25
SSE
25
SSE
10
ESE
10
S
20
S
15
SSE
20
SSE
25
SE
20
ESE
25
SE
35
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
oncross-
on
cross-
on
cross-
on
crosscross-
on
ononcross-
on
cross-
on
cross-
on
ononcross-
on
cross-
on
cross-
on
crosscross-
on
cross-
on
High Tide
/ height (m)
8:21PM
0.91
8:49PM
0.96
9:19PM
0.99
9:50PM
1.00
10:20PM
0.99
10:50PM
0.97
11:18PM
0.94
Low Tide
/ height (m)
6:21AM
0.26
6:21AM
0.24
6:35AM
0.20
7:01AM
0.18
7:33AM
0.16
8:10AM
0.17
8:50AM
0.19
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tue
23
Sunrise-4:56--4:56--4:56--4:58--4:58--4:58--4:58-
Sunset--7:25--7:25--7:27--7:28--7:28--7:29--7:29
clear
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C191818171717152018171616141616161717151918
Feels °C (?)1813131212119161412101091312141512101513
  • 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 Windy Harbour Surf forecast

The above surf forecast table for Windy Harbour provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Windy Harbour can be found by selecting the local surf guide option on the grey menu. Our Windy Harbour 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 (Windy Harbour) 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 Windy Harbour 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.

Windy Harbour is 168 km (104 miles) from Bunbury. If you plan a holiday in Far South of Western Australia, look for hotels and other accommodation in Bunbury. Bunbury has rooms for a wide range of budgets as well as car hire and transport links.

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