Conditions at Klitmöller in December
December: Midwinter Maximum
December closes the year with maximum North Sea power. Average swell height reaches around 6-7ft (1.8-2.1m) with an average period of 7.5s, tied with January for the longest average period of the year. W and WNW dominate the swell direction at 9.7% and 11.0%, while NW adds 8.3% and the optimal N/NNE/NW/NNW sector comes to roughly 16%. Waves over 5ft (1.5m) are abundant, and the short-period nature means hollow, close-out sections mixed with clean shoulders. Wind is predominantly WSW and W, with 20% offshore flow. Water temperature is 6.2°C, air averages 3.7°C, and daylight is scarce. It is cold, dark and often wild - exactly what midwinter North Sea surfing is about.
Average Spot conditions at Klitmöller in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Klitmöller during December. 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 Klitmöller for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Klitmöller for December. 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 Klitmöller.