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 September, Playa Tamarindo offers solid surf conditions with an average swell height of 1.4m and a strong average period of 14.3s, indicating consistent, well-spaced waves that are ideal for intermediate to advanced surfers. The swell predominantly comes from the SW direction, with a significant portion of waves in the 1-1.5m (26.9%) and 1.5-2m (13.25%) ranges, providing punchy, rideable waves. Larger sets occasionally reach 2-2.5m, though these are less frequent. Wind conditions are favorable 45% of the time, with light to moderate speeds (10-20kph) most common from the SSW and SW, which typically allow for cleaner faces. However, stronger gusts occasionally occur, particularly from the WSW and W. Early mornings often see the best conditions before onshore winds pick up. Overall, September delivers reliable surf with good energy and shape, making it a strong month for surfing at this spot.