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Conditions at Pichilemu in December
December: Summer Kickoff
December gives Pichilemu a classic early-summer setup. The average swell is unchanged at 1.6m (5.2ft) and the period sits at 12.4s, but the WSW swell signal fires hard again, jumping to 72.5% of the total, with SW at 19.1% and W at 7.4%. The wave-height distribution is packed with hollow, friendly 1-2m (3.3-6.6ft) surf, and just enough 2-2.5m (6.6-8.2ft) sets to keep it interesting. Ideal wind remains high at 69%, with the SW/SSW/WSW offshore flow dominating the coastal wind rose while N and NNE winds stay in the single digits. Air temperature reaches a pleasant 17.3°C, water settles at 13.4°C, and rainfall is minimal at 0.23mm/day. If you want long-period summer swells with offshore texture, December marks the beginning of the prime window at one of Chile's most storied surf towns.
Average Spot conditions at Pichilemu in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Pichilemu 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 Pichilemu for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Pichilemu 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 Pichilemu.