Conditions at Nyang Nyang in September
September: SSW Energy Peaks
September is a transition month with serious punch. Average swell height is still big at 2.0m (6.6ft) and the period remains long at 14.3 seconds. The directional focus is remarkable: SSW accounts for 70.9% of the swell, backed by S at 11.3% and SW at 3.4%. Nearly half of the waves fall in the 1.5-2m (5-6ft) class, and another 34% run 2-2.5m (6-8ft), so Nyang Nyang stays stuffed with southwest groundswell as the dry season begins to loosen.
The wind field is relaxing relative to mid-winter. ESE is down to 39.1%, SE still contributes 32.5%, but the strongest trade speeds are less frequent, and the ideal wind window climbs to 18%. Rain is still minimal at 0.98 mm/day, air temp is 25.8°C and water temperature is 26.8°C. Look for the easing afternoon trade and the first north-flow days - those early-season patterns can turn September into an absolute unsung hero, with overhead SSW swell and cleaner conditions than August.
Average Spot conditions at Nyang Nyang in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Nyang Nyang 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 Nyang Nyang for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Nyang Nyang 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 Nyang Nyang.