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Conditions at Wasaga Beach in August
August: A Glimmer of Late-Summer Swell
August is the first month since spring to show a faint pulse of energy. Average wave height edges up to 0.3m (1ft) and the period lengthens slightly to 3.0s. The wave rose still shows strong NNW dominance (16.7%) and good NW (13.6%) and WNW (11.6%) exposure, and the frequency of 0.5-1m (1.5-3ft) waves improves - NNW contributes 3.4% and NW 2.7% - suggesting the first early-season cold fronts are starting to nudge the lake. Most days remain flat, but the occasional late-August northern low can produce fun-sized, punchy 1m (3ft) waves for a few hours.
Wind patterns show a slight improvement: onshore W/WNW/NW/NNW flow drops to 44%, offshore E/ESE/SE/SSE winds are around 17%, and ideal surfing finally reappears at 1% of the time. The water is at its warmest of the year - 20-23°C (68-73°F) - and air temperatures average 20.1°C with precipitation near 2.12 mm/day, making the rare clean day particularly enjoyable. Keep an eye on the weather maps; the fall transition is beginning.
Average Spot conditions at Wasaga Beach in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Wasaga Beach 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 Wasaga Beach for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Wasaga Beach 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 Wasaga Beach.