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Conditions at Whangapoua Beach in December
December: Summer Sets the Table
December brings back the summer swell axis to Whangapoua. The favorable N-NNE-NE-ENE window jumps to 51%, with NE at 18% and ENE at 17%, while NNE adds 11%. The average period moves up to 7.2s, and although the mean height is only about 1.3-1.5ft (0.4-0.5m), the swell direction is more consistent and better aligned with the beach's NNE exposure. This is the beginning of the best season for Whangapoua's directional window.
Winds are a mix of summer and spring: WSW at 16.4% and SW at 11.2% provide offshore flow, but NNW at 12.5% and NW at 8.8% add cross-shore chop. Ideal wind appears just 1% of the time, so patience is required. Air temperatures warm to 18.1°C, water rises to 18.6°C, and precipitation is 2.42mm/day. By the end of the month, the early NE-ENE pulses are becoming more regular, and the first settled windows of good-quality, small-scale summer surf start to show.
Average Spot conditions at Whangapoua Beach in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Whangapoua Beach 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 Whangapoua Beach for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Whangapoua Beach 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 Whangapoua Beach.