Conditions at Bundoran in December
December: Deep Winter Deliveries
December delivers the full force of winter to Bundoran. The average swell height rises to 5-6ft (1.7m) and the period lengthens to 12.2s - powerful, well-organized groundswell from the core North Atlantic storm track. W and WNW swells once again dominate the wave rose, with strong percentages in the 1.5-2m and 2-2.5m classes, plus the first signs of XXL overhead energy. This is serious surf: heavy, grinding, and fast along the sandbanks.
With ideal wind at 31 percent, December offers some of the best offshore-window odds of the year. The classic recipe is a deep low west of Ireland driving WNW/NW swell, then a passing ridge of high pressure bringing offshore easterly/southeasterly winds and crisp, sunny spells. Air temperature averages just 5.0°C and water is 9.4°C, so it is cold, powerful and all about the chase - but when December lines up at Bundoran, it is world-class.
Average Spot conditions at Bundoran in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Bundoran 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 Bundoran for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Bundoran 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 Bundoran.