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Conditions at Isla Uvita in December
December: Winter Swell Season Locks In
December is a top-tier month. ENE still leads at 62%, but NE jumps to 30% and NNE adds 7%, so the average swell comes from a more north-easterly angle that lines up beautifully with the northeast-facing beach. Average height climbs to 4.3ft (1.3m), period to 8.2s, and the dominant height bins are 3-5ft (1-1.5m) and 5-6.5ft (1.5-2m). That translates into regular shoulder- to head-high, punchy surf with occasional bigger sets.
Ideal wind holds at 43%, with the offshore W/SW quadrant becoming more frequent as high pressure strengthens and winter fronts slide through the Caribbean. The dry season is taking hold: rain drops to 5.95 mm/day, air temps average 23.9°C, and water temps ease to 27.8°C. December delivers the classic formula - trade swell plus improving wind - and it shows in the surf.
Average Spot conditions at Isla Uvita in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Isla Uvita 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 Isla Uvita for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Isla Uvita 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 Isla Uvita.