Conditions at Artiglieria in December
December: Winter Swell in Full Swing
December matches January for consistency and adds the highest average period of the year at 6.0s. Swell height averages 2.3ft (0.7m), and the favourable W/SW/WSW/SSW window still supplies 58% of the wave energy, with WSW (18.9%) and W (17.3%) leading the charge. The wind patterns become more continental: E, ESE, NW and NNW all share time, but the percentage of true offshore NNO/NO/ONO/O flow peaks at 16%. This is the month when northern European high pressure often connects with Mediterranean lows to create long, clean rides. Air temperature averages 8.3°C, water is 16.6°C and precipitation is high at 2.94 mm/day. A thick wetsuit, a hood and a keen eye on the synoptic chart are essential, but December delivers the goods more often than any other month.
Average Spot conditions at Artiglieria in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Artiglieria during December. 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 Artiglieria for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Artiglieria for December. 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 Artiglieria.