Conditions at Sao Juliao in March
March: Late-Winter Groundswell
March is a transition month but still firmly in the best-surf window. Average swell height remains solid at 2.3m (7.5ft) with a 12.3s period, and the swell tower is led by NW (24.5%), WNW (18.3%), and NNW (14.8%) - a perfect spread for the west-northwest facing beach. The ocean is starting to settle, so the ratio of clean, well-ordered groundswell to storm surf improves. Wind is trickier though: the NNW wind machine has already started cranking, making up 20.9% of all wind observations, with N winds adding another 11.6%. Ideal offshore flow (ENE, E, ESE, SE) only occurs around 18% of the time, but late-season cold fronts still bring windows of light easterlies. When those align, the average 2-3m set waves can be crisp and rippable. Air temps warm to 13.4°C, water temp is 14.7°C, and precipitation drops to 1.77 mm/day, making longer surf sessions more comfortable.
Average Spot conditions at Sao Juliao in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Sao Juliao 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 Sao Juliao for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sao Juliao 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 Sao Juliao.