Conditions at Kugenuma in March
March: Spring Transition Adds Punch
March marks a clear shift in Kugenuma's swell spectrum. The SW share drops to 11.6%, while SSW (17.2%) and S (14.9%) become the leading directions, and the SE/SSE quadrant also becomes active with SE at 9.0% and SSE at 12.2%. This broadens the swell window and keeps the beach well exposed to a wider variety of southern pulses. The average height creeps up to 0.8m and the period lengthens slightly to 8.1s, giving the waves a little more push. Wind patterns are still dominated by NNE (23.3%), NE (13.8%) and N (8.2%), but spring also brings stronger SSW (8.2%) and SW (10.0%) flow. The ideal-wind frequency rises to 18%, the highest since December, making March a solid transition month. Air temperatures average 6.8°C and water sits at 15.0°C, so the air is softening while the ocean lags behind. This is one of the more underrated months: offshore mornings become more frequent, and those S/SSW swells carry enough energy to turn Kugenuma into a long, rippable beachbreak.
Average Spot conditions at Kugenuma in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Kugenuma 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 Kugenuma for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Kugenuma 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 Kugenuma.