Conditions at Cap Sim in March
March: Holding Winter Size as Spring Approaches
March continues to produce serious surf. Average swell is still 7.2ft (2.2m) and the period remains a robust 12.3 seconds. The directional spectrum is heavily NNW at 35 percent and NW at 23 percent, with an expanded WNW component near 9 percent as the tail end of winter storms sends waves from more westerly angles. However, the atmosphere begins to transition: ideal wind days fall to 40 percent, as SSW, SW and WSW winds become more frequent, mixing in light-wind days with blown-out frontal days. NE winds are still the leading offshore breeze.
March water temperature creeps up to 17.2°C and air temps average 16.7°C. This is a good month for bigger winter swells, but patience is required to pick off the clean, offshore windows between passing fronts.
Average Spot conditions at Cap Sim in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Cap Sim 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 Cap Sim for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cap Sim 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 Cap Sim.