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Conditions at Vairao in December
December: Wet-Season Fireworks and Westerly Windows
December closes the year with the most promising mix of ingredients for Vairao. Average surf heights settle at 5-6ft (1.7m) with the shortest average period of the year at 11.4s, but the swell direction starts to lean more westerly than at any time since the previous summer. The S and SSE quadrants remain large-22.0% and 21.1%-but the SW-WNW window jumps back up to over 10% of the total, bringing the kind of angles that actually light up this west-facing spot.
Add to that a healthy 39% ideal-wind frequency, with NE, E and ESE offshore flows in good supply, and you have a recipe for proper surf. The wet season is now fully engaged: air temps average 26.6°C, water sits at a warm 28.1°C, and precipitation jumps to 8.03mm/day. Tropical storms and late-season lows in the South Pacific can spin up excellent WNW-SW pulses in December, and when they meet Vairao's reef under an offshore breeze, the results can be memorable.
Average Spot conditions at Vairao in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Vairao during December. 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 Vairao for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Vairao for December. 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 Vairao.