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Conditions at Melbourne Beach in September
September: Tropical Swell Season Opens
September is the turning point. The average swell height jumps back to 0.8m and average period reaches 9.0s, the highest of the year, thanks to tropical cyclones and early autumn fronts. ENE (35.6%) and E (37.5%) dominate, with a much healthier share of 1-1.5m waves in both sectors. There are also pockets of 1.5-2m and 2-2.5m energy from NE and ENE, giving Melbourne Beach its first real taste of size since spring. Wind quality remains the issue: ideal wind is only 16% of the time, and ENE (15.0%), E (13.4%) and ESE (11.6%) winds are common. When a tropical low or front negotiates the wind angle, the waves can be spectacular. Water temp is still warm at 28.6C, air temp is 26.8C, and precipitation is 6.18 mm/day, but this is the month to start watching the tropics seriously.
Average Spot conditions at Melbourne Beach in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Melbourne Beach 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 Melbourne Beach for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Melbourne Beach 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 Melbourne Beach.