Big Rock 48 hour detailed Surf Forecast

Lat Long: 33.87° S 114.98° E

Issued: 7 pm 07 Sep 2026 (local time)

Forecast update in hr min

Today's Big Rock sea temperature is

18.2°C

Big Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Surf Forecasts:

How big are the waves at Big Rock today (08 Sep):

Morning surf: Morning surf (08 Sep, local time) - 13ft (4.0m), 16s period with SW swell.
Afternoon surf: Afternoon surf (08 Sep, local time) - 13ft (4.0m), 16s period with WSW swell.
Evening surf: Evening surf (08 Sep, local time) - 11ft (3.5m), 16s period with WSW swell.

The current surf forecast for Big Rock at 2AM is: 3.5m 16s primary swell from a Southwest direction (forecast issued at 07:00pm September 07). An open ocean swell of 1.0m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (AWST) & Date	Wave Height	Wave Period
Morning (08 Sep)	13ft (4.0m)	16s
Afternoon (08 Sep)	13ft (4.0m)	16s
Evening (08 Sep)	11ft (3.5m)	16s

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

	Short Range Forecast Mostly dry. Very mild (max 19°C on Tue afternoon, min 11°C on Tue morning). Winds decreasing (fresh winds from the SSE on Mon night, calm by Thu afternoon).
	Mon 7			Tuesday 8								Wednesday 9
	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
Rating (10 max)	5	4	4	5	7	6	7	8	8	7	6	6	5	5	3	5	5	5	4
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	WSW 16	WSW 16	SW 16	WSW 16	WSW 16	WSW 16	WSW 16	WSW 15	WSW 15	WSW 15	WSW 15	WSW 15	WSW 15
Wave Graph
kJ	5863	5268	5464	5922	7620	7953	7820	7328	7126	5968	5958	5252	4920	4278	3750	3487	3156	3038	2655
Wind (km/h)	SSE	SSE	SE	SE	SE	ESE	ESE	SE	SE	E	E	E	E	E	ENE	NE	E	E	E
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	off	off	off	off	off	cross-off	cross-off	off	off	off
High Tide						7:55AM0.87m						00:50AM0.59m			8:46AM0.83m
Low Tide	3:55PM0.19m								4:26PM0.23m			1:13AM0.59m					4:50PM0.28m


	—	—	—	—	6:30	—	—	—	—	—	—	—	6:28	—	—	—	—	—	—
	6:05	—	—	—	—	—	—	—	6:06	—	—	—	—	—	—	—	6:06	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	16	13	13	12	12	11	16	19	19	15	12	11	11	12	15	19	19	19	18
Feels °C	11	7	8	8	7	5	11	15	16	10	7	7	8	8	10	15	17	16	15
Swell 1 Height (m) Direction Period (s)	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	WSW 16	WSW 16	SW 16	WSW 16	WSW 16	WSW 16	WSW 16	WSW 15	WSW 15	WSW 15	WSW 15	WSW 15	WSW 15
kJ	5863	5268	5464	5922	7620	7953	7820	7328	7126	5968	5958	5252	4920	4278	3750	3487	3156	3038	2655
Swell 2 Height (m) Direction Period (s)	—	—	S 10	—	—	—	—	—	—	SSE 6	—	—	—	—	—	—	NNE 5	WSW 26	WSW 26
kJ	—	—	7	—	—	—	—	—	—	88	—	—	—	—	—	—	19	66	66
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	NNE 6	SW 26	WSW 26	—
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	22	27	66	—
Wind waves Height (m) Direction Period (s)	SSE 4	S 5	S 6	S 6	—	SSE 5	—	SSE 5	SSE 6	—	E 4	ENE 4	ENE 4	ENE 5	NE 5	—	—	—	NE 4
kJ	31	88	106	66	—	44	—	41	111	—	14	25	30	48	62	—	—	—	21
Nearest Offshore or Glassy	Huzzawouie (Huzzas) WA - Margaret River	Bunbury The Wall WA - Perth South	Conto Springs WA - Margaret River	Huzzawouie (Huzzas) WA - Margaret River	Huzzawouie (Huzzas) WA - Margaret River	Huzzawouie (Huzzas) WA - Margaret River	Huzzawouie (Huzzas) WA - Margaret River	Big Rock WA - Margaret River	Big Rock WA - Margaret River	Big Rock WA - Margaret River	Big Rock WA - Margaret River	Big Rock WA - Margaret River	Big Rock WA - Margaret River	Big Rock WA - Margaret River	Cobblestones WA - Margaret River	Big Rock WA - Margaret River	Big Rock WA - Margaret River	Big Rock WA - Margaret River	Big Rock WA - Margaret River
Rating (10 max)	6	4	7	6	8	8	8	8	8	7	6	6	5	5	5	5	5	5	4
Distance (km)	1	89	31	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0
Best forecast wave conditions in Margaret River	Supertubes		Conto Springs	Conto Springs	Conto Springs	South Point	Supertubes	Cobblestones	Supertubes	Margaret River Bommie	Margaret River Bommie	Margaret River Bommie	Margaret River Bommie	Margaret River Bommie	The Bombie and Boat Ramp	Margaret River Bommie	Margaret River Bommie	Margaret River Bommie	Margaret River Bommie
Rating (10 max)	6		7	8	9	8	8	9	8	8	7	6	6	6	5	5	5	5	5
Best forecast wave conditions in Australia	Supertubes WA - Margaret River	Flatrock SA - Eyre Peninsula	Conto Springs WA - Margaret River	Conto Springs WA - Margaret River	Conto Springs WA - Margaret River	Douglas Point SA - East Coast	Supertubes WA - Margaret River	Cobblestones WA - Margaret River	Supertubes WA - Margaret River	Margaret River Bommie WA - Margaret River	Margaret River Bommie WA - Margaret River	Margaret River Bommie WA - Margaret River	Margaret River Bommie WA - Margaret River	Margaret River Bommie WA - Margaret River	The Bombie and Boat Ramp WA - Margaret River	Margaret River Bommie WA - Margaret River	Margaret River Bommie WA - Margaret River	May's Point TAS - East Coast	May's Point TAS - East Coast
Rating (10 max)	6	7	7	8	9	8	8	9	8	8	7	6	6	6	5	5	5	8	7
Header Global	Supertubes Australia	Easter Reef Australia	Easter Reef Australia	Easter Reef Australia	Easter Reef Australia	Easter Reef Australia	Supertubes Australia	Cobblestones Australia	Cobblestones Australia	Gas Bay Australia	Gas Bay Australia	Cobblestones Australia	Gas Bay Australia	Saint Leu Reunion	Cobblestones Australia	Cobblestones Australia	Saint Leu Reunion	Saint Leu Reunion	May's Point Australia
Rating (10 max)	6	5	5	5	5	5	8	9	8	8	7	6	6	9	5	5	9	9	7

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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Big Rock 48 hour detailed Surf Forecast

How big are the waves at Big Rock today (08 Sep):

Short Range Forecast

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