Playa Hermosa seasonal overview
Playa Hermosa, Costa Rica, is a consistent year-round surf destination with a strong reliance on ground swells, which dominate nearly every month (90%+ frequency). The best conditions typically occur from December to March when the swell consistency remains high (96–100% ground swells) and wind conditions are most favorable, with good winds occurring 47–62% of the time. During this period, the average swell size ranges from 0.9 to 1.0 meters, offering clean, surfable waves with minimal wind interference. April and November serve as transitional months, still offering reliable ground swells (100% and 93% respectively) but with increasing onshore winds reducing quality, particularly in April where bad winds occur 61% of the time. From May to October, wave heights increase slightly (1.3m average), but wind conditions deteriorate significantly, with bad winds dominating 65–69% of the time, making sessions more challenging due to cross-onshore or onshore winds. September and October see a slight rise in wind swell contributions (6–8%), but this does little to offset the poorer wind outlook. Overall, the prime season for quality surfing at Playa Hermosa is during the Northern Hemisphere winter (December–March), when clean ground swells and manageable winds align most favorably. The rest of the year still provides consistent waves, but wind conditions become increasingly problematic, reducing the number of ideal surfing days.
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Conditions at Playa Hermosa in December
December at Playa Hermosa brings consistent surf with an average swell height of 0.9m and a solid period of 13.7s, indicating well-spaced, powerful waves. The swell is predominantly from the SSW (77.36% of waves in the 0.5–2m range), providing clean, organized lines ideal for intermediate to advanced surfers. Smaller contributions from SW and S directions add variety, though larger waves (>2m) are rare. Wind conditions are favorable 60% of the time, with light to moderate NNE–NE breezes (under 20kph) being most common, keeping the surface clean. However, occasional stronger SW winds (7.42% at 10–20kph) may create minor chop. Overall, expect punchy beachbreak peaks with good shape, offering high-performance rides and occasional hollow sections. Prime time is mid-morning before winds pick up. Bring your shortboard or step-up for the best experience.
Average Spot conditions at Playa Hermosa in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Playa Hermosa 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 Hermosa for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Playa Hermosa 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 Hermosa.
