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Conditions at Pennington Bay in March
March: The Autumn Wind Shift Begins
March is the first real transition month. Average swell height ticks up to 1.8m (5.9ft) and the period lengthens to 11.7s, a sign that the Southern Ocean is starting to wake up. SSW swell still dominates at 44%, while SW brings another 22% and straight S contributes 19%. The direction mix hasn't changed dramatically, but the wind profile is shifting. Ideal offshore wind now arrives 12% of the time, and although SE/SSE winds still rule the numbers, there is more WNW and NNW flow mixed in after frontal passages.
This is a good month for patient surfers. The late-season warmth - water 19.0°C, air 18.3°C - lingers through the first half, while rain increases to 0.82mm/day as fronts begin to push through more regularly. Morning NW/N offshore sessions become more workable, and when a clean south swell lines up, the bay can offer proper A-frame peaks at head-high to slightly overhead.
Average Spot conditions at Pennington Bay in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Pennington Bay during March. 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 Pennington Bay for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Pennington Bay for March. 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 Pennington Bay.