Conditions at Caldera in March
March: Longer Periods, Same Flat Reality
March sees the average swell period jump to 12.9s, hinting at more organized, longer-period energy arriving from the Southern Hemisphere. The average swell height remains around 1ft (0.3m), but the direction is well aligned: SSW delivers 50.9% of the directional spectrum and S adds a further 19.8%. The problem is again height, with no meaningful SSW swell making it into the 2-3ft (0.5-1m) range. The wind is a mix of offshore northeast trades and a developing southerly component; NE is 26.6%, NNE is 16.7%, but SSW wind has increased to 14.1% and S wind to 11.6%, which means afternoons get lumpy. Precipitation is minimal at 0.24mm/day, air temperatures average 28.8°C, and water temperature is 28.8°C. Early mornings are the clear window, though the surf itself remains marginal.
Average Spot conditions at Caldera in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Caldera 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 Caldera for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Caldera 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 Caldera.