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Conditions at Prainha in December
December: Summer Onshore Slop
December settles into the full summer pattern at Prainha. Average wave height is 1.5m (5ft), average period is only 8.2s, and ideal wind frequency limps in at 25%. Swell is dominated by east at 22.8%, east-northeast at 22.1%, east-southeast at 17.0%, southeast at 13.6% and south-southeast at 11.9%. The beach still gets waves, but they are shorter-period, less consistent and often chopped up by the northeast and east-northeast trades, which combine for over 35% of the wind. Water temperature is warm at 22.1°C and air temperatures average 21.3°C, so it is comfortable, but the surf quality is underwhelming. The rare cold-front pulse can bring a few clean days, but overall December is a low-quality month for serious surfers.
Average Spot conditions at Prainha in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Prainha 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 Prainha for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Prainha 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 Prainha.