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Surf Forecasts:
Big Rock surfForecast / WA – Margaret River / Australia
48hr Weather and Surf, issued 7 pm Monday 08 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
20.1° C
(Which is 1.1°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 1AM is: 2.2m 13s primary swell from a Southwest direction and 0.8m 15s secondary swell from a West-southwest direction (forecast issued at 07:00pm December 08). An open ocean swell of 1.0m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Dec) | 8ft (2.5m) | 13s |
| Afternoon (09 Dec) | 7.5ft (2.3m) | 12s |
| Evening (09 Dec) | 7ft (2.1m) | 13s |
Table - waves today at Big Rock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | |||||||||||||||||||||
| 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 | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 851 | 1040 | 997 | 1834 | 2031 | 2248 | 2049 | 1749 | 1568 | 1448 | 1448 | 1471 | 1671 | 1619 | 1783 | 1890 | 1682 | 1565 | 1457 | 1819 | 1129 | 956 | 772 | 706 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross |
High Tide / height (m) | 10:28PM 0.85 | 10:37PM 0.77 | 10:22PM 0.68 | |||||||||||||||||||||
Low Tide / height (m) | 10:08AM 0.18 | 10:54AM 0.24 | 11:19AM 0.30 | |||||||||||||||||||||
Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:01 | - | - | - | - | - | - | - | 5:01 | - | - | - | - | - | - | - | 5:01 | - | - |
| Sunset | 7:21 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - |
 |  |  | | | | | | |  | | | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 16 | 15 | 15 | 15 | 17 | 20 | 20 | 18 | 16 | 15 | 13 | 12 | 17 | 22 | 21 | 22 | 18 | 18 | 17 | 16 | 19 | 21 | 21 |
| Feels °C (?) | 12 | 11 | 10 | 10 | 10 | 13 | 16 | 13 | 11 | 9 | 11 | 9 | 8 | 14 | 20 | 17 | 18 | 14 | 15 | 16 | 13 | 15 | 17 | 16 |
- 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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