Conditions at Serangan in September
September: Early Transition Shimmers
September sees the start of a slow change as the trades begin to ease slightly. Average swell height is still solid at 6-7ft (1.8-2.1m) and the period is 14.3s, with SSW swell dominating at 70.9 percent. S adds 11.3 percent and SSE 0.7 percent. Wind-wise, the East Monsoon is still strong: ESE and SE each sit around 37 percent, while ideal offshore flow is limited to 3 percent. Still, the lighter wind speeds in the ESE/SE range mean the surface can be cleaner during parts of the day, offering hope of the first glassy windows of the transition. Water temp climbs to 26.7°C, air to 24.4°C, and precipitation is still low at 1.14 mm/day. It's the light at the end of the onshore tunnel.
Average Spot conditions at Serangan in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Serangan 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 Serangan for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Serangan 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 Serangan.