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Conditions at Kalk Bay in April
April: Real Swell Windows Open Up
April is when Kalk Bay starts waking up. Average height rises to 2.4m (7.9ft) and period reaches 12.2s, meaning much more of the energy arrives as powerful, well-organized groundswell. Swell direction is still led by SW at 23.3% and SSW at 19.3%, with WSW at 7.6% and S at 9.3% adding variety, while the more favorable SSE angle contributes 3.6%. The wind pattern begins to shift: SE is still dominant at 25.4%, but NNW jumps to 11.5% and NW to 8.1%. Ideal wind percentage reaches 18%. Precipitation increases to 1.65mm/day as fronts become more frequent. Air temps average 17.5°C and water temp drops to 15.9°C - time for a thicker suit and your first true winter-wavelength sessions.
Average Spot conditions at Kalk Bay in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Kalk Bay during April. 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 April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Kalk Bay for April. 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.