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Conditions at Betty's Bay in March
March: Autumn Transition Starts to Open the Door
March is the first month where the seasonal momentum shifts. The SE trade wind still dominates - ESE (19.6%), SE (16.2%) and E (10.6%) - but the NW/NNW offshore flow strengthens, pushing the ideal-wind percentage up to 22%. Average swell height rises slightly to 7.2ft (2.2m), and the period lengthens to 11.6s as the first serious autumn cold fronts begin to move through the South Atlantic. Swell direction is almost perfectly split between SW (27.9%) and SSW (23.7%), with S adding another 11.0%; the 5-8ft (1.5-2.4m) range is again the meat of the distribution. These are proper late-summer/early-autumn groundswells with excellent shape potential when the wind cooperates. Water temperature drops to 17.2C, air averages 19.4C, and rainfall ticks up to 0.84mm/day as the front frequency increases.
Average Spot conditions at Betty's Bay in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Betty's Bay 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 Betty's Bay for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Betty's Bay 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 Betty's Bay.