Conditions at Arenillas in March
March: The Last True Blast of Winter Power
March is the last month of true winter power. The average swell height drops slightly to 5-6ft (1.8m), but the period is still a strong 12.2s. The swell direction story is, if anything, even more focused: NW makes up 42.9% of the wave rose, with WNW 18.5% and NNW 14.3%. The biggest concentration is in the 1-2m band, meaning plenty of head-high to double-overhead surf. The wind, however, starts to shift. The ideal offshore wind percentage falls to 36% as S/SSW/SW winds drop to under 20% combined (S 6.5%, SSW 6.7%, SW 4.0%). Westerly and WNW winds increase (9.4% and 12.6% respectively), which can be dicey for spot cleanliness. Air temps start to rise slightly to 11.3°C (min 0.9°C, max 22.6°C), precipitation is 2.65mm/day and water temp is 12.9°C. The month can still deliver epic winter surf, but you need to pick the smaller windows when Atlantic lows position themselves to give Arenillas offshore S-SW flow.
Average Spot conditions at Arenillas in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Arenillas 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 Arenillas for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Arenillas 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 Arenillas.