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Conditions at Kalk Bay in May
May: The Magic Window Arrives
May is arguably the sweet spot of the year. Average swell height climbs to 2.6m (8.5ft) and the period holds at a powerful 12.4s. The dominant swell directions shift slightly toward WSW/SW at 37.6% combined, but SSW still chips in 11.8% and S another 4.0%. More importantly, the wind regime flips in your favor: NNW becomes the leading direction at 22.1%, with NW at 11.4% and WNW at 6.4% - all offshore or cross-offshore angles for Kalk Bay. Ideal wind hits its annual peak of 25%. There's a trade-off: precipitation ramps to 2.33mm/day and water temp cools to 15.8°C, so you'll want a good 4/3 wetsuit for those dawn sessions. This is the start of the prime window, when the South Atlantic low-pressure train delivers consistent, powerful surf and regular clean-up opportunities.
Average Spot conditions at Kalk Bay in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Kalk Bay 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 Kalk Bay for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Kalk Bay 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 Kalk Bay.