Conditions at Karmay in September
September: Autumn Ignition
September is when Karmay starts to wake from the summer slumber. Average swell height jumps to 5.2ft (1.6m), period builds to 8.0s, and the western swell window - S, SSW, SW, WSW and W - supplies a much larger share of the energy. The first low pressure systems deepen over the North Atlantic, sending long-period forerunners ahead of the main fronts.
Winds are still transitional, with NNW at 18.5% and SE/SSE around 20% combined. Ideal offshore flow sits at 23%. Water temperature is still pleasant at 14.9°C, air temps average 13.6°C, and when the wind turns N/NE after a front, September produces some of the most enjoyable, rippable surf of the year.
Average Spot conditions at Karmay in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Karmay 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 Karmay for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Karmay 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 Karmay.