Conditions at Zambujeira do Mar in September
September: Early Autumn Teaser
September is an early autumn teaser. Average swell increases slightly to 1.5m (5ft) and the period stretches to 10.6s - enough to hint at the longer-period groundswell to come. The NW quadrant still rules with NW 52.7%, WNW 16.5% and NNW 19.0%, producing more waves in the 1-2m (3-6ft) range.
Ideal wind jumps to 23%, and although NNW (28.4%) and NW (16.7%) still dominate, the North Atlantic begins to send pulses with longer fetch. Water temperature is warmest at 18.4°C, average air temperature is 21.3°C, and rain increases to 0.77mm/day. The first solid swell of autumn can already fire if the wind clocks into the offshore quadrants.
Average Spot conditions at Zambujeira do Mar in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Zambujeira do Mar 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 Zambujeira do Mar for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Zambujeira do Mar 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 Zambujeira do Mar.