Conditions at Boilers in January
January: Winter Heavyweight
January is peak season at Boilers. The average swell tips 7ft (2.2m) with a 13.3s period, the longest of the entire year. Most of that energy arrives from the NNW (28.7%) and NW (32.5%), with nearly 10% from WNW. For a southwest-facing set-up, the rare WSW and W bands are the gold; they only account for 1.4% of the total, but any south of west pulse sends the bank into overdrive. The rest of the time, raw north-window groundswell still produces heavy, pitching walls.
Wind data shows why January scores so high: 46% of the time the breeze is ideal offshore from the N/NNE/NE quadrant. NNW winds still blow 20.9% of the time and can add texture, but when the pressure gradient tightens between the Azores High and passing Atlantic lows, the coast can remain glassy. With an average air temperature of 16.2°C, water temperature of 17.2°C and only 0.76mm of rain a day, January is a legit winter swell magnet.
Average Spot conditions at Boilers in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Boilers 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 Boilers for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Boilers 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 Boilers.