Conditions at Magheroarty in January
January: Midwinter Monsters
January is peak season at Magheroarty, with the North Atlantic firing on all cylinders. The average swell height is 11.8ft (3.6m), and the average period is a powerful 12.5s - a combination that puts this stretch of Donegal firmly in the XL arena. The wave rose is dominated by westerly energy: W swell accounts for 9.0% of all observations, WNW for 5.7%, NW for 3.1% and NNW for 3.0%, with the majority of that energy in the 1.5m to over-2.5m classes. That means long, grinding lines that can double up on the sandbars when the direction locks into the northwest.
Wind is the great filter in January. The offshore quadrant (S, SSW, SW and WSW) is very active and makes up a large share of the wind rose, but the ideal wind window is only 8%. A lot of that southerly flow arrives at 20-40km/h, putting a bumpy texture on the waves. N, WNW, NW and NNW winds - the onshore killers for this beach - also appear frequently enough to make sessions short-lived. With water temp at 8.5°C, air temps averaging 5.3°C and average precipitation at 4.61mm/day, January is strictly for the thick rubber crew. Chase the morning after a cold front passes and west-northwest groundswell collides with a light southerly, and you will see Magheroarty at its heaviest.
Average Spot conditions at Magheroarty in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Magheroarty 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 Magheroarty for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Magheroarty 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 Magheroarty.