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Conditions at San Augustin in December
December: Winter Mix of NE Energy and South Glories
December brings the shortest average period of the year at 11.2s and average swell heights around 4-5ft (1.4m). The wave rose is dominated by NE and ENE swells, which together make up more than 32% of the energy and show a good amount of 1.5-2m (5-6.5ft) swell. Those east/northeast directions are the least efficient at San Augustin's south-facing beach, so much of the month's size may appear softer or more wrapped than the SW/S swell of summer. Still, the favorable SSE/S/SSW/SW quadrant accounts for about half of the total, with a lot of fun 3-5ft (1-1.5m) SSW energy.
Winds remain favorable about 60% of the time, with NNW, NW and WNW offshore breezes common and often light. Water temperature cools to 27.1°C, air averages 27.5°C, and rainfall is very low at 0.13mm/day. December is all about patience - wait for one of the longer-period SSW windows and a light offshore morning, and you can still find clean, rippable waves to close out the year.
Average Spot conditions at San Augustin in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at San Augustin 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 San Augustin for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at San Augustin 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 San Augustin.