Conditions at Castaways in March
March: Longest Periods and Shifting Winds
March marks the transition within the northeast monsoon, and the swell starts to come more directly from the south. SSE and S combine for a hefty 67% of all wave energy, with swell heights holding at a solid 1.1m (3.5ft). The average period jumps to 11.3s - the longest of the season - giving every wave added push and shape. The winds, however, are no longer a single-direction guarantee. Ideal wind drops to 64%, and while NNE and NNW still play a role, there is a notable increase in W and WNW winds, especially later in the month. That said, lighter overall wind speeds mean plenty of glassy mornings. With water at 29.7°C and rainfall still low, it remains a rewarding month for the dedicated surfer.
Average Spot conditions at Castaways in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Castaways 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 Castaways for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Castaways 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 Castaways.