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Conditions at Peahi-Jaws in September
September: First Signs of a New Season
September is a quiet transition month with the first hints of winter. Average swell height is still only 4ft (1.3m), but the period ticks up to 9.8s. ENE remains the dominant source at 48.0%, followed by NE at 19.6% and E at 14.0%. Yet the north begins to stir: N and NNW contributions appear at 3.8% each, and the ideal offshore wind score improves to 23%-the best since April. Early season low pressures in the North Pacific can produce the first long-period pulses of the autumn, and if they arrive with light southerly flow, Jaws can suddenly come to life. Water temp is a warm 26.6°C, air temp 25.0°C, and rainfall remains modest at 1.02mm/day.
Average Spot conditions at Peahi-Jaws in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Peahi-Jaws 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 Peahi-Jaws for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Peahi-Jaws 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 Peahi-Jaws.