Conditions at Kapu Beach in September
September: Monsoon Relents and Windows Open
September is the beginning of the monsoon's retreat, and the surf at Kapu becomes more interesting. The average swell height drops to 4-5ft (1.3m), while the direction balance shifts: WSW now dominates with 50.8 percent of wave energy, followed by W at 24.2 percent and SW at 19.1 percent. The bulk of the swell is in the 3-5ft (1-1.5m) range, but there is still plenty of 5-6.5ft (1.5-2m) energy on any given pulse. Periods average 9.5s - a bit shorter, but enough to hold the swell together.
Wind conditions improve measurably, with ideal offshore flow up to 21 percent. The wind rose is much more mixed, allowing more easterly/northeasterly offshore windows. Rain decreases to 11.44 mm/day, water temp sits at 27.4°C, and the beach starts to feel like a surf spot again. The first clean, head-high sets of the post-monsoon season are within reach.
Average Spot conditions at Kapu Beach in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Kapu 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 Kapu Beach for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Kapu 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 Kapu Beach.