Playa Tamarindo - surf spot statistics

Playa Tamarindo in Costa Rica benefits from consistent year-round swell, primarily ground swell, which dominates the conditions with over 90% presence in every month. The swell size remains steady, averaging between 1.1m and 1.4m, peaking slightly from May to September. Wind conditions vary more noticeably, with the best wind reliability occurring from May to August when favorable winds are present around 50-55% of the time. The worst wind conditions are from December to March, when onshore winds dominate, reducing surf quality despite solid swell. April stands out as a transition month with 100% ground swell and improving wind conditions. For advanced surfers seeking the most reliable mix of swell and wind, the window from May to August offers the best balance, with slightly larger waves and a higher chance of offshore or light onshore winds. September and October still provide solid swell but see a marginal drop in wind quality. While Tamarindo rarely has flat spells, those prioritizing glassy conditions should focus on mid-year, whereas those comfortable with chop may find decent waves year-round.

In December, Playa Tamarindo offers decent surfing conditions with an average swell height of 1.1m and a solid average period of 13.6s, indicating well-spaced, organized waves. The dominant swell directions are SSW and SW, contributing to 27.5% and 28.3% of waves in the 1-1.5m range, respectively. These swells produce the majority of rideable waves, with a tendency for clean, mid-sized surf. However, the wind is often a limiting factor—only 36% of the time are conditions ideal (light offshore or cross-offshore). Winds are predominantly from the NE (46.5% of the time, often at 10-30kph), which can create choppy or blown-out conditions. Smaller, cleaner windows are more likely early mornings before the NE winds pick up. Expect a mix of waist- to head-high waves with occasional larger sets, best suited for intermediate surfers. Wind management is key for scoring the best sessions.