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Conditions at Black Rock in March
March: The First Taste of Autumn Power
March is a transition month, and you can feel it in the numbers. The average swell height remains steady at 5-6ft (1.7m), while the average period jumps to 9.1s - the first real sign of longer-period Southern Ocean energy filtering into the region. The swell rose is still dominated by SSE (17.6 percent), E (15.4 percent) and SE (15.5 percent), with SSW-W swell climbing only to about 1.1 percent. The wind picture improves too, with the best ideal-wind score of the year at 34 percent. NNE and NE flows are consistent, and the air and water both hold at a pleasant 22.5°C. You still won't get perfect W/SW groundswell, but the combination of longer period, cleaner surface conditions and consistent 3-6ft (0.9-1.8m) waves makes March one of the more user-friendly months at Black Rock.
Average Spot conditions at Black Rock in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Black Rock 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 Black Rock for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Black Rock 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 Black Rock.