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Conditions at Playa Tamarindo in September
September: Wet-Season Lull and Variable Winds
September sees the peak of the rainy season, with precipitation averaging 8.76mm/day. Air temperature eases to 26.8°C and water is still warm at 29.0°C. Swell continues to arrive from SSW and SW, but the period drops slightly to 13.0s and heights hold at 4-5ft (1.2-1.5m). Wind becomes lighter and more variable: E, ESE, SE, SSE, and S are all present, with ideal wind at 59 percent. The lack of a dominant trade flow means more lumpy, drifty conditions, and the WNW window remains mostly empty. This is a month for patience.
Average Spot conditions at Playa Tamarindo in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Playa Tamarindo during September. 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 Tamarindo for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Playa Tamarindo for September. 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 Tamarindo.