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Conditions at Sennen Cove in March
March: Early Spring, Still Firing
March is a transition month, but Sennen still sees robust swell. Average heights ease only slightly to 7ft (2.1m) with an 11.2s period, and the percentage of WNW swell jumps to 11.3%, matching the beach's exposure well. W is still the big player at 22.8%, WSW adds 14.8%, and NW arrives 3.8% of the time. These swells are a mix of leftover winter groundswell and early spring low-pressure activity. Ideal offshore wind jumps to 10% and the mean wave period remains comfortable for organised surf. As high pressure begins to nudge in, some days bring lighter winds and clearer skies, making March an excellent month for experienced surfers after some winter size. Water is still cold at 9.2°C, air near 9.0°C, with less rain (2.42 mm/day) than midwinter. Aim for a dropping NW groundswell and a S/SSW flow.
Average Spot conditions at Sennen Cove in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Sennen Cove 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 Sennen Cove for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sennen Cove 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 Sennen Cove.