- Home
- ...North America
Costa Rica- Playa Avellanes
Conditions at Playa Avellanes in December
December: The Prime Window Arrives
December is the true start of the best season at Playa Avellanes. Average swell height is 4ft (1.3m), average period is 11.7s, and the directional mix opens up dramatically: SSW drops back to 31.1 percent, while SW at 18.7 percent, WSW at 6.6 percent, W at 4.6 percent, and WNW at 4.4 percent combine for 34.3 percent of the spectrum. NNW and NW add another 10.7 percent of wrap-around energy, giving this west-facing coast plenty of variety.
Winds are as good as it gets. NE dominates at 50.7 percent, ENE adds 29.2 percent, and ideal surfing wind reaches 75 percent. Rain is scarce at 0.70mm/day, air is 27.1C, and water is 27.8C. December sets the tone for the next three months: clean, offshore, long-period, and consistent. If you want the best chance at Playa Avellanes, book around the winter solstice.
Average Spot conditions at Playa Avellanes in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Playa Avellanes 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 Playa Avellanes for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Playa Avellanes 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 Playa Avellanes.