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Big Rock Surf Forecast
/ WA – Margaret River (57 breaks) / Western Australia (159 breaks) /
Surf Forecasts:
Big Rock surfForecast / WA – Margaret River / Australia
48hr Weather and Surf, issued 1 pm Thursday 04 Dec 2025 AWSTForecast 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
19.9° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Big Rock today?
The current surf forecast for Big Rock at 4PM is: 3.0m 13s primary swell from a Southwest direction (forecast issued at 01:00pm December 04). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Dec) | 10ft (3.0m) | 12s |
| Afternoon (04 Dec) | 10ft (3.0m) | 13s |
| Evening (04 Dec) | 8ft (2.5m) | 12s |
Table - waves today at Big Rock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 04 | Friday 05 | Saturday 06 | Sunday 07 | |||||||||||||||||||||
| 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2406 | 2483 | 2445 | 2331 | 2068 | 1824 | 1599 | 1468 | 1468 | 1369 | 1513 | 1513 | 1605 | 1513 | 1398 | 1167 | 1017 | 930 | 913 | 759 | 745 | 548 | 515 | 443 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off | glass | on | on | cross- on | cross- on | cross | cross- on | cross- on | on |
High Tide / height (m) | 8:43PM 0.91 | 9:11PM 0.95 | 9:40PM 0.95 | |||||||||||||||||||||
Low Tide / height (m) | 6:20AM 0.03 | 7:15AM 0.05 | ||||||||||||||||||||||
Thursday 04 | Friday 05 | Saturday 06 | Sunday 07 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:01 | - | - | - | - | - | - | - | 5:01 | - | - | - | - | - | - | - | 5:01 |
| Sunset | - | - | 7:17 | - | - | - | - | - | - | - | 7:17 | - | - | - | - | - | - | - | 7:19 | - | - | - | - | - |
 |  | |  | |  |  |  | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 16 | 16 | 16 | 16 | 15 | 16 | 17 | 18 | 18 | 17 | 16 | 16 | 15 | 15 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 17 | 18 |
| Feels °C (?) | 14 | 12 | 11 | 11 | 12 | 12 | 13 | 14 | 15 | 13 | 12 | 12 | 13 | 12 | 13 | 15 | 14 | 13 | 14 | 14 | 15 | 15 | 17 | 17 |
- 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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