Surf Forecast Surf Report

Big Rock surfForecast / WA – Margaret River / Australia

information circle12 Day Weather and Surf, issued 1 am Thursday 24 Apr 2025 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
22.7° C
(Which is 1.9°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 Thursday (Apr 24) at 8AM. The primary swell is predicted to be 5.5m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Big Rock in the next 12 days are 6.0m 13s and forecast to arrive on Thursday (Apr 24) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Apr 30) at 11AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Thu 24th Apr)18ft (5.5m) 12s
Best Surf 8AM (Thu 24th Apr)18ft (5.5m) 12s
Most Powerful 5AM (Thu 24th Apr)20ft (6.0m) 13s

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

Updates in  hr  min  s Forecast update imminent
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
4.5
SW
3.5
SSW
3
SW
2.5
SW
2.5
SW
2.4
SW
2.3
SW
2.4
SW
2.3
SW
2.1
SW
2.1
SW
2.1
SW
2.1
SW
1.8
SW
1.5
SW
1
WSW
1.3
WSW
1.2
WSW
0.9
WSW
1.6
SW
1.9
SW
1.9
SW
1.9
SW
1.8
SW
2.1
SW
2.3
SW
2.3
SW
2.3
SW
2.3
SW
2.3
SW
1.5
SW
1.8
SW
3.5
SW
3
SW
2.4
SW
1.9
SW
Period(s) (?)121114141413131313121313121111131212161616151414131313121211212017161514
Wave
Graph
(?)Metric surfscale
Energy (?)571826503013260325282032187620021626136314171374113075648733547237845211931672148614261215145218191764159115391325183925467798382725251423
Wind
(km/h)
30
S
30
SSE
15
SE
10
SSE
20
SSE
15
E
5
SSE
20
S
15
SE
15
S
20
S
15
ESE
5
E
15
S
15
ESE
15
NNE
10
NW
15
ENE
25
N
15
N
10
ENE
15
N
5
NW
10
SE
15
SSW
20
SSW
25
SW
50
SSW
40
S
25
SSE
20
S
20
S
10
WSW
25
WSW
25
WSW
25
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
cross-
off
cross-
off
cross-
off
offglasscrosscross-
off
cross-
off
crosscross-
off
glasscrossoffcross-
off
cross-
on
offcross-
off
crosscross-
off
crosscross-
on
cross-
off
crosscross-
on
cross-
on
crosscross-
off
cross-
off
crosscrosscross-
on
oncross-
on
cross
High Tide
/ height (m)
9:04AM
0.74
8:47PM
0.76
8:56AM
0.77
10:01PM
0.71
8:58AM
0.82
11:29PM
0.66
9:07AM
0.89
9:22AM
0.95
9:41AM
1.01
10:04AM
1.05
10:27AM
1.06
10:49AM
1.04
11:07AM
0.99
11:11AM
0.93
10:51AM
0.85
Low Tide
/ height (m)
2:50PM
0.55
2:52AM
0.53
3:36PM
0.45
2:55AM
0.59
4:26PM
0.36
2:27AM
0.64
5:19PM
0.31
6:19PM
0.29
7:30PM
0.29
9:00PM
0.30
10:40PM
0.32
11:55PM
0.34
12:47AM
0.37
1:24AM
0.41
1:46AM
0.47
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Sunrise6:48--6:48--6:50--6:50--6:50--6:52--6:52--6:54--6:54--6:54--6:56--6:56--
Sunset-5:46--5:45--5:45--5:44--5:43--5:42--5:40--5:39--5:38--5:37--5:37--5:36-
part cloudpart cloudpart cloudpart cloudpart cloudclearclearpart cloudclearpart cloudpart cloudclearclearclearclearpart cloudpart cloudpart cloudpart cloudpart cloudpart cloudclearclearpart cloudcloudpart cloudpart cloudrain showerspart cloudpart cloudcloudpart cloudcloudcloudcloudrain showers
Rain (mm)
---------------------------3-------3
Temp. °C171716161817171717181716181816192019222221222221201919181616161618181919
Feels °C (?)1010111413131614141613121715131617171819212021211917161178121114141515

Short Range Forecast: Mostly dry. Very mild (max 18°C on Fri afternoon, min 14°C on Sat morning). Winds decreasing (fresh winds from the S on Thu morning, calm by Sat morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Tue afternoon, min 15°C on Sun night). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 22°C on Wed morning, min 18°C on Wed morning). Wind will be generally light.

Long Range Forecast: Light rain (total 6mm), mostly falling on Sat morning. Very mild (max 19°C on Mon afternoon, min 14°C on Sat night). Winds decreasing (strong winds from the SSW on Sat morning, light winds from the SSW by Sun night).

  • 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 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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