Conditions at Muli in December
December: The NE Monsoon Returns
December marks the establishment of the northeast monsoon, bringing drier, cleaner conditions back to Muli. Average swell height settles at 1.3m (4.3ft) with an average period of 9.9s. The swell distribution becomes more ESE-SSE again: SE (13.5%), SSE (18.0%), S (20.3%), SSW (13.6%), with a nice spread of SW (13.2%) and WSW (9.2%). The wind is primarily from the N/NNW/NW section: NW (14.3%), NNW (11.1%), W (14.9%), WNW (18.4%), and N (3.2%), giving an ideal wind percentage of 54%. This is a delightful return to consistency - the winter trades push clean offshore breezes across a SE-facing reef, turning the moderate south swells into peelable, groomed waves. Air temp averages 27.2°C (24.8-29.3°C), precipitation 5.05 mm/day, and water temp 28.6°C. Time to ride.
Average Spot conditions at Muli in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Muli 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 Muli for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Muli 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 Muli.