Conditions at Ninjas/Piddlies in September
September: Monsoon Eases, Southern Lines Remain
September is the beginning of the end of the southwest monsoon, and the percentages shift subtly. Ideal wind remains high at 52%, with W (31.5%), WNW (26.7%) and WSW (17.5%) still dominating the offshore flow. The wave period is a solid 8.4s and average height is 1.1m (3.6ft). Swell direction is still predominantly from the south - SSE 15.3%, S 18.9%, SSW 14.3%, SW 13.7%, WSW 16.3%, W 15.2% - but the SSE share has grown, giving the east-facing reefs a slightly better chance of seeing refracted lines. It's a transition month in disguise: clean conditions with occasional 3-5ft (1-1.5m) south pulses that can wrap in. Rain remains substantial at 6.02mm/day, air temperature is 27.5°C, water temperature is 29.1°C. Not the best month, but better than the dead of summer for this spot.
Average Spot conditions at Ninjas/Piddlies in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Ninjas/Piddlies 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 Ninjas/Piddlies for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ninjas/Piddlies 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 Ninjas/Piddlies.