- Home
- ...North America
United States- Blacks Beach
Conditions at Blacks Beach in March
March: Spring's First Shift
March is a transition month, and it shows in the data. Average swell height is still a solid 1.1m (3.6ft), but the direction balance tips southward: WSW now matches W closely (39.0 percent vs. 44.4 percent), and SW swell contributes 13.2 percent. The average period remains long at 12.6s, so the surf still has plenty of push. The problem is wind quality. Ideal offshore flow drops to just 28 percent as the thermal gradient strengthens and the winter high pressure weakens. Onshore W and WNW winds now combine for over 34 percent of all wind observations, creating frequent afternoon chop. Despite this, late-season North Pacific fronts can still deliver excellent 1.5-2m (5-6.5ft) WNW swells, often accompanied by cold, clean conditions. Water temps slowly rise to 14.9°C (59°F), and precipitation eases to 1.52 mm/day. March is for patient surfers who can chase the windows between the building spring sea breezes.
Average Spot conditions at Blacks Beach in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Blacks Beach 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 Blacks Beach for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Blacks Beach 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 Blacks Beach.