Conditions at Vila Nova de Milfontes in September
September: Autumn Stirring
September marks the first real shift back toward surf season. The average swell height rises slightly to 4-5ft (1.4m), and the period lengthens to 10.6s, giving waves more push and shape. Swell direction remains strongly NW at 55.4 percent, with WNW at 21.3 percent adding good exposure angles. Ideal wind increases to 23 percent, and the NNW wind regime starts to weaken to 27.9 percent. Water temperature peaks at 18.1°C, the warmest reading of any month, while air temperatures remain warm at 21.3°C and precipitation stays modest at 0.77mm/day. Early autumn lows can occasionally send more southerly or west energy, so the month can overdeliver when a distant storm aligns with the exposure of the beach.
Average Spot conditions at Vila Nova de Milfontes in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Vila Nova de Milfontes 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 Vila Nova de Milfontes for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Vila Nova de Milfontes 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 Vila Nova de Milfontes.