Conditions at Ozaki in December
December: Winter Small Craft Warning
December brings the annual minimum in average swell height, with the mean dropping to 0.6m (2ft) even though the average period hangs around 9.2 seconds. The dominant swell directions remain SEO to ESE, with ESE at 25.1% and SE at 17.2%, but the height distribution is heavily weighted toward 0-0.5m and 0.5-1m, meaning most days are small and marginal. The wind field once again turns into a strong northwest monsoon, with WNW at 22.3%, NW at 13.7% and NNW at 12.6%; this produces excellent offshore direction in theory, but ideal conditions only occur 10% of the time due to the frequent strength of the wind. WSW and W energy begins showing up in the swell statistics, but that is largely local wind-driven noise from the offshore winds rather than usable groundswell. Air temperatures fall to 10.8°C, water cools to 20.7°C, and surfers need patience and winter rubber to find the occasional clean, fun-sized set.
Average Spot conditions at Ozaki in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Ozaki 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 Ozaki for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ozaki 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 Ozaki.