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Conditions at Green Island in March
March: The First Real Turn Toward Autumn
March marks the first serious shift away from summer slop. Average size remains 1.7m (5.5ft) with period 8.7s, but clean wind percentages jump to 39 percent. The offshore component begins to strengthen - N through WNW flow now accounts for 21.9 percent - and the S/SSE component of the swell increases; SSE alone supplies 17.6 percent of the waves. This is the start of the fair season. The water is still warm at 22.3°C, air averages 20.8°C and rainfall drops to 3.31 mm/day. Expect punchy 3-6ft (1-1.8m) surf with better shape when westerly winds clear the coast, especially after cold fronts push through the Tasman Sea.
Average Spot conditions at Green Island in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Green Island 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 Green Island for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Green Island 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 Green Island.