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Conditions at Honolua Bay in December
December: Peak Season at Honolua Bay
December is the statistical peak of the year. Average swell height reaches 2.0m (about 6-7ft) and average period is 12.3s, producing powerful, long-period groundswell. The direction rose shows the strongest optimal signal of any month: NNW at 23.9%, N at 8.0%, NW at 3.4%, and WNW at 0.5%, combining for about 36% of total swell energy from exactly the directions this bay wants. The 1.5-2.5m (5-8ft) range dominates the north-northwest sector, with large percentages in 2-2.5m and even a hint of over-2.5m (8ft+) conditions.
Winds are not perfect, but they are workable. ENE wind is still 47.8% and NE 14.6%, yet the southwest quadrant returns to about 9% and the ideal wind index is 28%. Many of the biggest NNW swells are followed by light west or southwest winds, creating clean, hollow, world-class lefts at Honolua. Water temperature is 24.8°C, air averages 23.9°C, and precipitation is 2.04 mm/day. This is the month the bay earns its reputation.
Average Spot conditions at Honolua Bay in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Honolua Bay 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 Honolua Bay for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Honolua Bay 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 Honolua Bay.