Big Wave
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Level 10/10

Cow Bombie

Gracetown, Australia
😮‍💨Hold-downs🦈Sharks🏝️Remote

Cow Bombie (Cowaramup Bombora) is Australia's premier big wave break—an open-ocean reef that lurks 2 kilometres offshore from Gracetown in the Margaret River region. When massive Indian Ocean storm swells push through, the bombie comes alive with waves that have been ridden at 40+ feet, making it the biggest wave ever surfed in Australia. The break was pioneered by local big wave chargers and has since attracted international big wave surfers. Only accessible by jet ski, Cow Bombie represents the absolute pinnacle of Australian big wave surfing.

3-Day Forecast
Thu
30
0
Poor
3.3m
@14s
23km/h
Fri
1
18
Poor
5.2m
@14s
27km/h
Sat
2
0
Poor
3.9m
@13s
19km/h
+7
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Today's Conditions

Swell
3.3m
SW(222°)
Score: 3/25
Period
14s
Long period groundswell
Score: 4/25
Wind
23km/h
SW(218°)
Score: 0/25
Weather
17°C
0.1mm38%
Windswell Component
1.1mSW@4s
Secondary Swell
0.4mWSW
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning
AM: 13 km/h SW|PM: 25 km/h SW
13 km/h vs 25 km/h afternoon

Location & Conditions

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0°45°90°135°180°225°270°315°NESW
Swell
Wind
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Tide Times

8:30 am
High tide - 0.63m
5:30 pm
Low tide - 0.16m
9:30 pm
High tide - 0.21m
Times shown in spot-local time.

Strike Score Breakdown

0
Poor
Components
Swell Direction15/25
Swell Size3/25
Swell Period4/25
Wind0/25
Raw Score22/100
Adjustments
⚠️ Weak Component-15
📉 Undersized Swell-10
🚫 Undersized Capmax 44
Adjusted Score0/100
Confidence
Multiplier×1.00
Final Score0

Spot Details

Swell Requirements

Optimal direction
WSW (240°)
Direction range
190° - 290°
Size range
4m - 18m
Ideal size
10.4m
Height multiplier
1.08×
Ideal period
20s+

Wind Requirements

Optimal direction
E (100°)
Offshore range
70° - 135°

Tide Requirements

Optimal tide
all

Water temp

18°C

Wetsuit

3/2mm fullsuit

Difficulty

10/10

Crowd level

1/10

Access: Jet ski launch from Gracetown. 2km paddle/ride to the break.

Best Season

Peak: Jun-Aug

Secondary: May, Sep

Winter only. Needs massive swell to break on the outer reef.

Getting There

Airport
BQB
Drive time
60 min
Boat required
$600
Data quality
verified

Strike Log

Community Discussion