Conditions at Il Castello in March
March: Spring's South Swell Shift
March begins the transition into smaller, more southerly windswell. The average height drops slightly to 0.8m (2.6ft) while the period remains a marginal 5.1s. The S/SSE sector suddenly becomes very active - S is 12.0% and SSE 11.4% - but the SW/WSW combination is still the biggest source of waves at 27.7% combined. Ideal offshore wind drops to 17%, with NNE (11.5%) and NE (9.3%) leading the offshore flow, but onshore S through WSW winds climb to 21.7% of the time. This means more south swell with bump and fewer clean windows. Water temperature is 13.7°C (56.7°F), air temperatures warm to 11.7°C, and rain remains common. Surfable but inconsistent; look for a north wind following a cold front to turn the afternoon chop into clean lines.
Average Spot conditions at Il Castello in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Il Castello 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 Il Castello for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Il Castello 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 Il Castello.