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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 Saturday 30 Aug 2025 AWST
How big are the waves at Big Rock today?
The current surf forecast for Big Rock at 7PM is: 1.0m 20s primary swell from a West-southwest direction and 1.2m 16s secondary swell from a West-southwest direction (forecast issued at 01:00pm August 30). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Aug) | 3ft (0.9m) | 16s |
| Afternoon (30 Aug) | 3ft (0.9m) | 16s |
| Evening (30 Aug) | 4.5ft (1.4m) | 16s |
Table - waves today at Big Rock. (Swell directed towards the surf break)
Saturday 30 | Sunday 31 | Monday 01 | Tuesday 02 | |||||||||||||||||||||
| 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) (?) | 16 | 16 | 22 | 16 | 20 | 19 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 666 | 573 | 937 | 1631 | 2621 | 3181 | 3763 | 5740 | 5837 | 5303 | 5110 | 4629 | 4108 | 3725 | 3114 | 2729 | 2692 | 2655 | 2546 | 2430 | 2567 | 2914 | 3334 | 3449 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | glass | glass | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | cross- on | cross- on | glass | cross- off |
High Tide / height (m) | 1:02AM 0.81 | 1:56AM 0.84 | 3:36AM 0.85 | |||||||||||||||||||||
Low Tide / height (m) | 3:16PM 0.34 | 3:11PM 0.32 | 3:13PM 0.30 | |||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 01 | Tuesday 02 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:37 |
| Sunset | - | - | 6:00 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - |
 |  | |  | | |  | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 15 | 15 | 15 | 15 | 14 | 13 | 13 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 15 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 13 |
| Feels °C (?) | 8 | 12 | 13 | 14 | 13 | 12 | 10 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 12 | 13 | 11 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for WA - Margaret River
Continuing clean conditions at Big Rock (calm at Witchcliffe 21 km from Big Rock). 1.1m 8s swell from the S with a 0.9m 15s groundswell from the WSW. 2 swells combining to make bigger set waves.
21 km away, 36 min ago
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