Conditions at Kugenuma in February
February: Coldest Water, Solid South Swell
February keeps Kugenuma locked in the same winter formula as January, but with the coldest water of the year at 14.9°C. The average swell height and period are identical to January - 0.7m (2-3ft) and 7.8s - highlighting a stable but not oversized regime. Swell from the SW still leads the pack at 21.5%, followed by SSW at 13.3% and due south at 9.9%, while the SSE adds another 6.2%. Alongside NNE/NE background swell, this creates a well-mixed southern window. The wind climatology remains favourable: NNE dominates at 28.6%, NE at 13.7%, N at 8.1% and NNW at 7.0%. When high pressure over Siberia locks in, cold continental air streams down the coastline and grooms the surface. The 14% ideal-wind frequency is low, but the sheer volume of offshore-direction wind means frequent early-morning clean windows before the S/SW sea-breeze influence grows. Precipitation is modest at 2.19 mm/day, so there are plenty of rideable days between passing fronts.
Average Spot conditions at Kugenuma in February
Swell history for February
Wind history for February
Swell quality
Analyze the groundswell consistency at Kugenuma during February. 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 February.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Kugenuma for February. 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.