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Conditions at Wasaga Beach in May
May: Lake Calm, Flat Water and No Swell
By May the last echoes of the winter storm track are gone, and Wasaga Beach turns into a mirror-flat lake. The average wave height drops to just 0.2m (0.6ft), the lowest of the year, and the average period is a windblown 2.9s. The wave rose still shows a high percentage of NNW/NW/WNW directions - 16.9%, 16.3% and 14.0% respectively - but the wave heights are almost all in the 0-0.5m (0-1.5ft) micro category. These are tiny ripples, not surf; a 0.5-1m wave is rare, and anything over 1m is almost non-existent. The fetch over Georgian Bay is in a summer mode under stable high pressure, so the lake remains idle.
Winds are equally unfriendly: onshore W/WNW/NW/NNW flow blows 48% of the time, while offshore E/ESE/SE/SSE winds sit near 21%, but the combination of light winds and no swell means 0% ideal surfing. Air temperatures warm to 10.9°C, precipitation climbs to 2.11 mm/day, and water temperatures start to rise through 8-12°C (46-54°F). The first warm days will tempt you to bring a board, but pack a groveler and expect to work hard for ankle-biters.
Average Spot conditions at Wasaga Beach in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Wasaga Beach during May. 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 May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Wasaga Beach for May. 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.