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Conditions at St Ives in March
March: Transitional Power
March signals the first subtle shift toward spring, but the Atlantic still has plenty of bark. Average swell height eases to 2.1m (7ft) and the average period remains a healthy 11.2s, so long-period groundswell is still very much on the menu. The swell rose shows W (22.8%), WSW (14.8%) and WNW (11.3%) as the main players, with a greater share in the 1-2m range than January. This is the month where St Ives can be pumping one day and mellow the next, as the jet stream starts to wobble. Offshore wind windows are still frequent enough - SSW (8.1%), SW (8.5%) and WSW (9.6%) all appear regularly - but WNW and NNW winds also take up roughly 17% of the observations, bringing onshore chop. Ideal conditions sit at 17%. Water temp is still cold at 9.1°C, air temp around 9.0°C, and rain is slightly less frequent than mid-winter. March is a reliable transition month with quality left in the tank.
Average Spot conditions at St Ives in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at St Ives 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 St Ives for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at St Ives 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 St Ives.