Conditions at Bunkers in December
December: Winter Heights
December brings the biggest, most consistent swells of the year to Bunkers. Average swell height is 6-7ft (2.0m) with a 7.5s period, and the direction window is well distributed from SW through NW. The W and WNW directions alone contribute 20.7% of the waves, and the full NW-W sector approaches 32%, with solid chunks of 5-8ft (1.5-2.5m) surf plus occasional 8ft+ (2.5m+) bombs on active days.
Wind is a mix of winter mayhem and clean offshore shots. Onshore W/WNW winds total 27.9%, while offshore east-to-south-southeast winds are 22.9%, with 19% ideal surf conditions. The strong Icelandic Low and frequent North Atlantic cyclones mean there is no shortage of swell; the challenge is finding a window when the wind is not howling onshore. With air temps at 3.7°C and water temp at 6.2°C, December is raw, powerful, and rewarding for those willing to brave the cold.
Average Spot conditions at Bunkers in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Bunkers 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 Bunkers for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Bunkers 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 Bunkers.