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Conditions at Sayulita in December
December: Peak WNW Groundswell, Cold-Front Wind Roulette
December closes the year with classic winter conditions. The average swell height is 1.0m (3.3ft), period 13.4s, and the swell rose is exactly what Sayulita wants to see: WNW at 44.5%, W at 37.1%, NW at 4.8%, and WSW at 11.1%. Nearly half of the wave energy arrives from the WNW, with a good chunk in the 1-1.5m (3.3-4.9ft) class and occasional 1.5-2m (4.9-6.6ft) sets. This is the most consistent swell direction of the year. Winds, however, are once again the enemy: NNW at 35.1%, NNE at 21.9%, N at 17.8%, NW at 8.2%, and only 5% ideal offshore conditions. Water temperature is down to 26.1 degrees C, air 24.7 degrees C, and rain remains low at 0.72mm/day. December is the classic winter trade-off: powerful WNW groundswell, but wait for the wind to swing offshore to truly enjoy it.
Average Spot conditions at Sayulita in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Sayulita 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 Sayulita for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sayulita 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 Sayulita.