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Conditions at Hermanus in March
March: Autumn Starts to Stir the Ocean
March is a transition month and a slow ramp toward winter. Average swell height rises to 2.2m (7.2ft), period lengthens to 11.6s, and ideal wind jumps to 18%. The ESE/E/SE trades are still present-E is 17.4% and ESE 18.8%-but the W/WNW/NW quadrants pick up, especially light-to-moderate W (7.6%), WNW (7.3%), and NW (4.5%) breezes that blow offshore at Hermanus. Swell remains predominantly from the SW (27.9%) and SSW (23.7%), though the S component (11%) and SSE (6%) add more of the direction that really suits the SSE-facing beach. Water temps cool to 18.1°C and rain increases slightly to 1.26 mm/day as the first frontal systems nudge in. It is not yet winter, but the occasional solid S/SSE groundswell combined with offshore flow is a good sign of things to come.
Average Spot conditions at Hermanus in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Hermanus 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 Hermanus for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Hermanus 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 Hermanus.