Conditions at Agger in January
January: Peak North Sea Power
January is the heart of the Danish winter surf season, and the numbers show it: average swell height reaches 7ft (2.1m), the highest of the year, with an average period of 7.5s. The swell rose is dominated by the WNW, W, WSW and NW quadrants, and a sizeable chunk of the distribution from those directions sits in the 1.5-2.5m range - this is the month for serious overhead waves. Air temperatures average just 3.9°C and water temps sit at 4.3°C, so this is heavy rubber territory. The catch at Agger is wind. Onshore WSW-WNW winds blow about 35 percent of the time in January, often in direct association with the biggest swells. Ideal offshore ENE through SE winds occur only 18 percent of the time, often under the cold high pressure that follows a North Sea low. When that lock occurs, you get grinding, punchy 7.5s-period windswell lining up on the sandbanks, and it is worth every frozen paddle. Precipitation is high at 3.02mm/day, so be ready for raw, storm-washed sessions.
Average Spot conditions at Agger in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Agger 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 Agger for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Agger 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 Agger.