Conditions at Inside Lefts in December
December: Wet Season Slop With a Pulse
December closes the year under the full northwest monsoon. The average swell is still 5ft (1.5m) and the average period 12.3s, so there is energy in the water. SSW is the leading swell source at 46.7 percent, with SW at 22.8 and WSW at 14.8. The most common sizes are 3-5ft (1-1.5m) and 5-6.5ft (1.5-2m), with WSW and W adding a secondary 6.5-8ft (2-2.5m) window.
Winds have shifted fully back to the west/northwest, with W at 20.9 percent and WNW at 15.3 percent. The S/SSW/SW/WSW quadrant is also active, leaving only 15 percent ideal wind time. Rainfall is heavy at 8.59mm/day, air temp stays tropical at 27.4C, and water is 29.2C. December is for the monsoon-bump hunters who can find a rare clean day between squalls.
Average Spot conditions at Inside Lefts in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Inside Lefts 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 Inside Lefts for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Inside Lefts 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 Inside Lefts.