Conditions at Crab Island in March
March: Spring Tension in the Atlantic
March is a transition month, but not a letdown. Average swell height eases to 6-7ft (1.8-2.1m) while the period still sits at a healthy 11.9 seconds. The swell direction actually becomes even more favorable: W dominates with 28.7%, WSW and WNW both deliver 16.1%, and NW adds another 3.2%, giving a total of over 64% from the optimum western quadrants. The 1-2.5m (3-8ft) classes are well filled, so there is plenty of solid, rippable surf.
The atmosphere is starting to spring-clean. Ideal wind conditions tick up to 17%, and the offshore flow from ENE, E, ESE, and SE reaches around 20% of the observations. That said, the onshore westerly wind machine still runs at 34%, so grinding storm surf is still common. On the bright side, the sun is getting higher, air temperatures nudge up to 7.3°C, and water temps stay around 8.5°C. March is one of the last months to enjoy serious winter groundswell without the worst of the winter chill.
Average Spot conditions at Crab Island in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Crab Island 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 Crab Island for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Crab Island 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 Crab Island.