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Surf Forecasts:

Big Rock surfForecast / WA – Margaret River / Australia

information circle12 Day Weather and Surf, issued 7 am Saturday 24 Jan 2026 AWST
Forecast update in hr  min  s Forecast update imminent
Big Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big Rock sea temperature is
21.9° C
 (Which is 1.6°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Big Rock this week:

The surf forecast for Big Rock over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jan 25) at 11PM. The primary swell is predicted to be 5.0m and 17s period. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Big Rock in the next 12 days are 5.0m 17s and forecast to arrive on Sunday (Jan 25) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Wednesday (Jan 28) at 8PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 25th Jan)16ft (5.0m) 17s
Best Surf11PM (Sun 25th Jan)16ft (5.0m) 17s
Most Powerful11PM (Sun 25th Jan)16ft (5.0m) 17s

Table - best surf conditions forecast for Big Rock over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 6mm), mostly falling on Sun morning. Warm (max 21°C on Sat night, min 16°C on Mon night). Winds increasing (light winds from the NW on Sat morning, fresh winds from the W by Sun afternoon).

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Thu morning, min 12°C on Tue night). Winds decreasing (fresh winds from the SSE on Wed night, light winds from the SW by Thu morning).

Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Friday
30
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
0
0
0
0
0
0
0
3
1
1
3
2
0
2
1
0
1
0
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3
SW
3
SW
2.5
WSW
3
WSW
3.5
WSW
5
WSW
4.5
WSW
4.5
WSW
3.5
SW
3
SW
2.5
SW
2.1
SW
1.7
SW
1.3
SW
1.2
SW
1.4
SW
1.1
SW
0.8
SW
1.4
SW
1.5
SW
1.6
SW
Period(s) (?)151414131317161513121211111110101013121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)39663192240329724358137201005878794863268319021027663399284341241208584614650
Wind
(km/h)
15
NW
20
WNW
30
WNW
25
W
30
W
25
W
30
SW
25
SSW
20
S
25
S
30
S
20
SE
15
S
35
S
25
SE
10
SW
30
S
25
SSE
35
SSW
40
SSE
30
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		onononononcross-
on		cross-
on		crosscrosscrosscross-
off		crosscrosscross-
off		cross-
on		crosscross-
off		crosscross-
off		cross-
off
High Tide
/ height (m)
2:19PM
0.55
3:01PM
0.61
4:06PM
0.67
5:21PM
0.74
6:25PM
0.81
7:20PM
0.86
8:08PM
0.89
Low Tide
/ height (m)
5:01AM
0.37
2:45AM
0.28
3:02AM
0.17
3:35AM
0.09
4:12AM
0.04
4:49AM
0.03
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Friday
30
Sunrise5:31--5:33--5:33--5:35--5:35--5:37--5:37--
Sunset-7:30--7:30--7:29--7:29--7:28--7:27--7:27-
part cloud
clear
part cloud
rain showers
rain showers
rain showers
rain showers
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
Rain (mm)
---1131--------------
Temp. °C181921212018181817171816212117222219202016
Feels °C (?)17161717151312121214121018151121181515138
  • 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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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Big Rock surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Big Rock at:
surf-forecast.com

Information about the Big Rock Surf forecast

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

Big Rock is 85 km (53 miles) from the city of Bunbury. If you plan a holiday in Margaret River, 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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