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Conditions at Chesterman Beach in December
December: Deep Winter Groundswell
December is chest-deep in peak season. Average swell height ties the annual high at 2.6m (8.5ft), with the period stretching to 12.4s - the kind of powerful, long-period groundswell that is the hallmark of a good winter on Vancouver Island. The swell direction is dominated by W, WSW, and SW, and while the height can be big, it is exactly what Chesterman's west-southwest facing sandbars are built to handle. The wind regime turns more offshore-friendly, with E and ESE flow dominating the easterly quadrant, producing 25% ideal conditions - the best ratio of any winter month. Air temps average 5.1°C, water temp drops to 8.1°C, and precipitation is high at 9.93mm/day. If you can handle the cold, this is the month for career sessions.
Average Spot conditions at Chesterman Beach in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Chesterman 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 Chesterman Beach for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Chesterman 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 Chesterman Beach.