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Conditions at Llangennith in March
March: Transition to Spring, Size Drops but Quality Windows Increase
March is a transition month. The average swell height eases to 4ft (1.2m) and the period settles at 10.0s, still long enough to produce punchy, organized waves. The swell distribution remains dominated by WSW at 41.6%, with W adding 23.2% and SW/WNW adding another 12.7%, so the beach is still exposed to plenty of western energy. What changes is the weather pattern: the jet stream begins to waver, and high pressure starts to build more often, giving ideal offshore wind 10% of the time. The NE-ENE-E-ESE composite is around 22%, which means more clean, glassy mornings even as the swell shrinks. Rain decreases to 2.66mm/day, air temperatures edge up to 7.4°C, and water remains cold at 8.2°C. This is the month where you can start scoring fun 3-5ft (1-1.5m) waves without needing to fight the worst of the winter wind.
Average Spot conditions at Llangennith in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Llangennith 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 Llangennith for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Llangennith 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 Llangennith.