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Conditions at Cape Town in March
March: Autumn Kicks the Door Open
March is where the transition starts to ramp up. Average swell still sits at 7-8ft (2.1-2.4m), but the period lengthens to 11.7s and the ideal-wind ratio jumps to 34%. The South Atlantic high begins to weaken while mid-latitude fronts brush the Cape, producing a healthy spread of SW (25.7%), SSW (21.0%) and S (11.2%) groundswell. The wind picture is favorable, with SSE at 31.2%, SE at 18.5% and S at 14.1%; NNW (7.4%) and NW (4.3%) are the main onshore threats as fronts approach. Water temperature is 14.3°C, air averages 19.4°C and rainfall is still light at 0.52mm/day. With longer-period swell and cleaner winds, March is a genuine standout month for surf quality.
Average Spot conditions at Cape Town in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Cape Town during March. 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 Cape Town for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cape Town for March. 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 Cape Town.