Conditions at Il Castello in January
January: Deep Winter's Southwestern Punch
January is the heart of the surf season at Il Castello. The average swell height is 0.9m (3ft) with a period of 5.1s, so most energy arrives as short-period windswell rather than true groundswell. Swell from the SW/WSW quadrant dominates the rose: SW makes up 15.8% of all observations and WSW another 13.2%, with S and SSW adding another 14.6%. A solid portion arrives in the 0.5-1m (1.5-3ft) range, and there are genuine 1-1.5m (3-5ft) pulses from the southwest as well. The wind regime is among the best of the year: NNE (16.5%) and NE (14.1%) combine with N and ENE to create offshore flow, and ideal surf wind is present 21% of the time. Still, 15.4% of winds blow from the onshore S through WSW quadrant, so southwesterly swell is often accompanied by bump. Water temperature hovers near 13.2°C (55.8°F), air temperatures average 9.9°C and precipitation runs 2.0mm/day - this is proper winter wetsuit surf.
Average Spot conditions at Il Castello in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Il Castello 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 Il Castello for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Il Castello 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 Il Castello.