Conditions at Berria in December
December: Prime Time at Berria
December is the crown jewel of the Berria calendar. Average swell is 6.2ft (1.9m), average period is 12.6s, and the wind is ideal for surfing 53% of the time - the highest of any month. Swell direction is as good as it gets: NW 35.8%, WNW 20.6%, and NNW 11.9% combine to feed the beach from the optimal north-west quadrant. Size is generous, with NW putting 9.9% of waves in the 3-5ft (1-1.5m) range, 11.4% in 5-6ft (1.5-2m), and 9.5% in 6-8ft (2-2.5m). The wind rose shows why it works: SSW (14.9%) and S (12.5%) are the top two wind directions - clean, offshore flow - with W and WNW taking over only between frontal passages. Air temp averages 10.4°C, water temp 13.8°C, and rain is 3.65 mm/day. Get on it early, because December offers the most consistent combination of size, period and offshore wind Berria sees all year.
Average Spot conditions at Berria in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Berria 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 Berria for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Berria 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 Berria.