Conditions at Spiekeroog in December
December: Winter Solstice Swell
December closes the year with some of the most consistent surf of the season. Average swell height sits at around 5ft (1.5m), average period is 6.5s, and the short-period energy is powerful enough to break hard on the sandbars. Swell direction remains broadly northwesterly, with NW at 12.0%, W at 11.7%, WSW at 10.6%, WNW at 9.8%, NNW at 7.8% and SW at 7.9%. The wind data are dominated by a strong SW flow: SW at 14.5%, WSW at 11.8%, SSW at 12.5%, and S at 7.4%. This favorable offshore direction is the reason December can be a hidden gem, despite the cold. Ideal surfing winds occur about 12% of the time, and when the windows line up with a deep low in the North Sea, the island is often rewarded with clean, hollow, grinding 4-6ft (1.2-1.8m) waves and the occasional larger set. Water temp drops to 6.7°C, air temps average 5.7°C, and winter rubber is non-negotiable.
Average Spot conditions at Spiekeroog in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Spiekeroog 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 Spiekeroog for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Spiekeroog 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 Spiekeroog.