Conditions at Yo-Yos in September
September: The Wind Wins
September is statistically the windiest and least favorable month for surf quality at Yo-Yos. The swell is still very good - 1.6m (5.2ft / 1.6m) average with a 14.2s period, and an overwhelming 86.3% from the SSW - but the wind is a relentless mix of SE (46.1%), SSE (24.0%), and ESE (20.2%). Ideal wind frequency bottoms out at just 4%, meaning nearly every session is a fight against onshore chop. The dry season continues with just 0.93mm/day of rain, air temps at 25.7°C, and water at 27.8°C. If you're in the area, you can still find surfable waves, but the odds of glassy conditions are extremely slim.
Average Spot conditions at Yo-Yos in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Yo-Yos 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 Yo-Yos for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Yo-Yos 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 Yo-Yos.