Conditions at Mullaghmore Head in January
January: A Pounding Atlantic Start
January sits right in the heart of Mullaghmore's big-water season. The average swell is 6ft (1.8m) and the average period is 12.6s, squarely in the powerful long-period range. Direction-wise, the North Atlantic delivers a relentless mix of W (23%) and WNW (26%) energy, with NW (11%) and NNW (7%) adding the kind of northwest angles this coast loves. Even though dead-north swell is rare (under 1%), the NW/NNW component, combined with long-period groundswell, is what pushes real size into the bay. Winds favor the offshore half of the compass: S (11%), SSW (10%), SW (10%) and WSW (11%) combine for a high percentage of clean or semi-clean windows, and the data shows ideal winds about 33 percent of the time. When a deep low in the North Atlantic aligns with a negative NAO pattern, expect pumping, heavy XXL conditions - but also cold, wet and stormy days, with air temps around 6.7°C, water 8.3°C and over 4mm/day of rain.
Average Spot conditions at Mullaghmore Head in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Mullaghmore Head during January. 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 Mullaghmore Head for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Mullaghmore Head for January. 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 Mullaghmore Head.