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Conditions at Mayport Poles in September
September: Tropical Swell and the Fall Spark
September is the first month of the year where the surf stats start to lift. Average height climbs back to just over 2ft (0.7m) and the average period jumps to 7.5s, the highest of the year. The swell distribution is also more promising: E (32.9%), ESE (26.4%) and ENE (24.4%) dominate, with a notable 4.8% of ENE swell in the 3-5ft (1-1.5m) range and another 1.2% at 5-6.5ft (1.5-2m). This is the tropical transition - a mix of ocean swells and early-season nor'easters. The downside is wind: NE (13.5%), ENE (14.1%), E (10.6%) and ESE (8.3%) are mostly onshore, and ideal wind is only 10%. Still, when the wind goes light or southwest ahead of a front, these east swells wrap clean and fast. Water temp is 28.1°C, air averages 26.9°C, and rain is 4.90 mm/day.
Average Spot conditions at Mayport Poles in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Mayport Poles 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 Mayport Poles for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Mayport Poles 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 Mayport Poles.