Conditions at Biarritz in December
December: The Apex of the Biarritz Year
December is statistically the best month of the year for surf conditions at Biarritz. Average swell height is 6ft (1.7m), period is 12.6s, and the wind is ideal for surfing 51 percent of the time - the highest annual mark. WNW (39.6 percent), NW (32.4 percent), NNW (5.0 percent) and W (3.8 percent) keep the swell window locked open. The distribution is ideal for hollow beach breaks: 3-5ft (1-1.5m) at 20.7 percent, 5-6.5ft (1.5-2m) at 19.1 percent, 6.5-8ft (2-2.5m) at 13.0 percent, plus a meaningful share of XL waves over 8ft (2.5m).
The wind regime is winter perfection. S winds lead at 13.7 percent, SSW at 10.5 percent, and SW/WSW add 5.9 percent each. That south to southwest flow is offshore for the NW-facing beaches, grooming the swell into clean, powerful walls. W and WNW winds still appear but less frequently than in autumn. Water temp is 13.4°C and air averages 7.7°C; precipitation is 3.6 mm/day. December delivers Biarritz at its most consistent and most spectacular.
Average Spot conditions at Biarritz in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Biarritz 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 Biarritz for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Biarritz 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 Biarritz.