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Conditions at Taronui Bay in September
September: Spring Transition and the Northwest Bent
September ushers in the spring transition with a 33.5% combined share for N, NNE, NW and NNW swells. NNW (13.1%) and NW (8.9%) are now common arrivals from Tasman lows, and the average period remains low at 8.6s, which makes waves peaky but also easily chopped. The wind is still largely westerly, with W (12.9%), WSW (12.2%) and WNW (11.1%) dominating. The ideal wind percentage is the lowest of the year at 21, meaning offshore windows are precious. However, when a cold front clears and the wind backs to the SW/S, the north-facing bay turns on with well-formed bank waves in the 1-2m (3-6ft) range. Air temperature starts to rise (13.8°C) and water is still a brisk 15.3°C.
Average Spot conditions at Taronui Bay in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Taronui Bay 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 Taronui Bay for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Taronui Bay 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 Taronui Bay.