Conditions at Orio in September
September: Autumn Stirs in the Atlantic
September marks the beginning of the upward trend at Orio. Average swell height climbs back to 4ft (1.3m), the period stretches to 10.4s, and ideal wind frequency jumps to 32 percent. The direction distribution is still extremely favorable: NW at 54 percent, WNW 21 percent, and NNW 15 percent combine for 90 percent of all incoming swell. This is the first month where early autumn lows renew the long-period groundswell supply before the onshore summer regime fully lets go. Wind remains a challenge, though - NNW, WNW and NW winds are still common, while S and SSE winds combine for 13 percent and can provide glassy, lined-up conditions. Water temperature is still warm at 20.9°C, air hovers near 19.0°C, and precipitation is around 2.6 mm/day. Early autumn is one of the most pleasant months to surf Orio in a slightly thinner wetsuit.
Average Spot conditions at Orio in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Orio 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 Orio for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Orio 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 Orio.