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Conditions at Margaret River in August
August: Still Massive, with a Hint of Spring on the Horizon
August remains deep winter in the swell department. The average height is 2.7m (8.9ft) and the period is the longest of the year at 13.3s. The dominant SW (25.6%) and WSW (14.0%) swells are pure, long-period Southern Ocean groundswell, and the W component adds further power. The wind regime is still frustratingly frontal - WSW, W and WNW combine for more than 34% of the wind rose, with a significant share blowing at 20-40 kph. Ideal wind sits at 18%, but those percentages improve as the month progresses and spring approaches. When the synoptic setup aligns a southwest pulse with a pre-frontal E/SE wind, Margaret River is as world-class as it gets. Water temp dips to its annual minimum of 17.6°C, air temp is 14.3°C, and rainfall eases slightly to 3.12 mm/day.
Average Spot conditions at Margaret River in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Margaret River during August. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Margaret River for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Margaret River for August. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Margaret River.