Conditions at Pencit Reef in December
December: Mid-Winter Power under Storm-Torn Skies
December closes the year with serious wave power. Average swell height is 1.6m (5.2ft) and the period holds at a commanding 10.0s. The directional spread is extremely focused - NE 60.1%, ENE 24.8%, and NNE 7.9% - with the 1.5-2m (5-6.5ft) class especially well represented and a significant 2-2.5m (6.5-8ft) component. This is the northeast monsoon in full force, sending consistent, long-period northeasterly energy into the Philippine Sea.
Yet ideal surf wind remains rare - only about 6% of the time. The NE monsoon blows onshore across the reef for most of December, so even though the swell is pumping, the surface is often messy and difficult. If a strong high-pressure cell over eastern Asia sets up a brief offshore S-SW flow, then the same swell becomes a genuine event in the 6-8ft range. But those moments are fleeting. Water remains warm at 28.4°C, air is 27.7°C, and tropical rains increase to 14.8mm/day. Bring a board you don't mind scratching; December is big, raw, and unrefined.
Average Spot conditions at Pencit Reef in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Pencit Reef 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 Pencit Reef for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Pencit Reef 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 Pencit Reef.