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Conditions at Mooloolaba in September
September: Spring Swing
September is the beginning of the spring transition. Ideal wind frequency is still good at 25%, but the swell begins to back off to an average of 4ft (1.3m) with a shorter period of 8.2s. E (19.3%), ESE (16.3%) and SE (16.5%) remain the main swell directions, with ENE (10.4%) and NE (7.3%) starting to add more north in the mix. Wind direction becomes split: NNW (17.6%) and NNE (9.7%) are increasingly common, while SE (10.7%) and ESE (7.2%) still bring onshore pulses. The 25% ideal offshore flow is still enough to produce plenty of clean days, especially early in the month. Water temp begins to warm to 21.1°C, air temp averages 19.7°C, and rainfall is at its yearly low of 1.66mm/day.
Average Spot conditions at Mooloolaba in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Mooloolaba 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 Mooloolaba for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Mooloolaba 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 Mooloolaba.