Big Rock Surf Forecast

/ WA – Margaret River (57 breaks) / Western Australia (159 breaks) /

Australia (828 breaks)

Surf Forecasts:

Big Rock surfForecast / WA – Margaret River / Australia

48hr Weather and Surf, issued 7 am Sunday 14 Sep 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 17.6° C
(Which is slightly warmer than usual)

How big are the waves at Big Rock today?

The current surf forecast for Big Rock at 11AM is: 6.5m 11s primary swell from a West direction (forecast issued at 07:00am September 14). The wind direction is predicted to be onshore.

Time (AWST) & Date	Wave Height	Wave Period
Morning (14 Sep)	18ft (5.5m)	10s
Afternoon (14 Sep)	21ft (6.5m)	12s
Evening (14 Sep)	21ft (6.5m)	13s

Table - waves today at Big Rock. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Sunday 14							Monday 15								Tuesday 16								Wed 17
	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	5 PM	8 PM	11 PM	2 AM
Rating (10 max)	0	0	0	0	0	0	0	0	!	!	!	0	0	0	0	0	3	2	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	W	W	W	W	W	W	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	SW	SW	SW	SW	SW	WSW	WSW	WSW	WSW
Period(s) (?)	9	10	11	12	13	13	13	14	14	15	15	15	14	14	14	14	13	13	13	12	12	12	11	11
Wave Graph (?)
kJ (?)	2852	4904	9707	12949	13463	13916	13902	14423	15542	16063	15402	13855	12332	10389	8674	7126	5362	4446	3813	3026	2081	2202	2123	2205
Wind (km/h)	WNW	WNW	W	W	WSW	WSW	WSW	WSW	SW	SW	SW	SW	SW	SW	SW	WSW	WSW	WNW	WNW	WNW	WNW	WNW	WNW	WNW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	on	on	on	on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	on	on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on
High Tide / height (m)								12:57AM 0.82									3:37AM 0.80
Low Tide / height (m)				1:48PM 0.20									2:32PM 0.17								3:09PM 0.17

	Sunday 14							Monday 15								Tuesday 16								Wed 17
Sunrise	-	6:22	-	-	-	-	-	-	-	6:20	-	-	-	-	-	-	-	6:18	-	-	-	-	-	-
Sunset	-	-	-	-	6:09	-	-	-	-	-	-	-	6:10	-	-	-	-	-	-	-	6:10	-	-	-

Rain (mm)	2	3	3	1	3	1	-	1	1	1	-	-	-	-	-	-	-	-	1	1	-	-	2	-
Temp. °C	15	14	13	13	12	13	12	12	12	11	12	12	12	13	13	13	13	13	14	15	16	15	15	16
Feels °C (?)	5	3	1	0	0	1	1	2	2	1	4	3	4	6	7	7	8	8	8	9	9	8	8	9

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

Wind Update Wind reports 21 km away suggest it is still onshore at Big Rock (fresh winds from the W at Witchcliffe). A 6.0m groundswell from the W is too big for here
59 minutes ago Big Rock

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21 km away, 59 min ago

35 km/h

0.0

17.6

Air / Water (°C)

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