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Conditions at Low Island in December
December: Peak Winter, Peak Size
December is the apex of the surf year at Low Island. The average swell height reaches 9.8ft (3.0m), the largest of any month, and the 11.7s period gives it serious long-period power. The directional breakdown is less single-direction dominant than spring, but WSW (10.6%), SW (8.9%), SSW (5.8%) and W (4.0%) combined still place the bulk of the energy squarely in the ideal swell window. Larger swells over 8.2ft (2.5m) are a frequent occurrence, so patience and the right board are essential. Winds are predominantly from the E/ESE/SE/SSE, with an ideal offshore wind fraction of 28% - enough to keep some outstanding sessions alive if you are selective. Water temperature sits at a cold 6.6°C (43.9°F), air temperatures average 3.0°C (37.4°F), and precipitation is high at 9.14mm/day. December delivers the full winter package: XXL swells, cold, raw conditions, and some of the most powerful, charging waves of the year.
Average Spot conditions at Low Island in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Low Island 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 Low Island for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Low Island 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 Low Island.