Big Rock Surf Forecast and Surf Reports

(Margaret River, Australia)

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Big Rock Surf Guide

Big Rock in the Margarets River Area is an exposed reef break that has reasonably consistent surf Offshore winds are from the east. Most of the surf here comes from groundswells and the best swell direction is from the southwest. There is a right hand reef break. When it's working here, it can get crowded. Beware of urchins, rips, rocks, locals and sharks.

Big Rock Spot Info

Type:	Rating:	Reliability:	Todays Sea Temp*:
Reef	2	fairly consistent	20.6°C*ocean temperature recorded from satellite

Surfing Big Rock:

The best conditions reported for surf at Big Rock occur when a Southwest swell combines with an offshore wind direction from the East.

Hourly Forecast

16 Day Forecast

What's the best time of year to surf Big Rock (for consistent clean waves)?

marchBest Season: autumn

The best time of year for surfing Big Rock with consistent clean waves (rideable swell with light / offshore winds) is during Autumn and most often the month of March. Clean surfable waves are typically found 45% of the time in March while 54% of the time it tends to be blown out. For the remaining 1% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.

clean

45%

Surfable waves that hold up well for longer rides in prevailing cross-offshore, offshore or light wind conditions.

blown out

54%

Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing).

too small

Waves usually considered too small for good surf. Some wave-magnet breaks may still work though if conditions are right (on occasion).

Explore Big Rock Location Map

Interactive Big Rock surf break location map. View information about nearby surf breaks, their wave consistency and rating compared to other spots in the region. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Click icons on the map for more detail. The nearest passenger airport to Big Rock is Perth Jandakot Airport (JAD) in Australia, which is 215 km (134 miles) away (directly). The second closest airport to Big Rock is Perth International Airport (PER), also in Australia, 234 km (145 miles) away.

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Please note that some surf spot locations are approximate to protect their exact location while others are not shown at close zoom level.

Big Rock Surf Forecasts:

Hourly Forecast

16 Day Forecast

Todays Surf Summary
Tuesday, 5 May 2026, 17:26 Local Time

m, °C	Tuesday 05			Wed
ft, °F	5PM	8PM	11PM	2AM
Wave (m)	WSW	SW	SW	SW
Period (s)	19	14	14	18
Wind (km/h)
Wind State	cross- off	cross- off	cross- off	off

What does Big Rock look like?

Latest photos from Big Rock. Upload your own or view all photos on the gallery page.

Credit: jaysea

Tides at Big Rock

Current tide and informaton

For Cowaramup, Australia, 1 km from Big Rock.

Next High Water: 10:33am | 1.08m

Next Low Water: 09:03pm | 0.42m

NEXT	IS AT (local time)	remaining
high tide
low tide

Big Rock Sea Temperature

The water temperature (20.6 °C) at Big Rock is warm and the air temperature should feel similar (windchill forecast 18.0 °C). If the sun does come out as forecast, it should feel warm enough to surf in a shorty or a summer wetsuit.

Today, many surfers would wear a shorty.

Current Temp*: 20.6°C*ocean temperature recorded from satellite