Conditions at Uluwatu in January
January: Monsoon Grip and Onshore Chop
January is one of the more testing months at Uluwatu. The swell table shows a solid SSW/SW groundswell supply-SSW accounts for 35.7% and SW for 47.4% of all readings-with the dominant heights sitting in the 5-6ft (1.5-2.0m) range. The average is around 5-6ft (1.7m) at a 12.4s period, so there is real power in the water. The problem is the wind. W (36.7%) and WNW (17.2%) dominate, with WSW adding 14.6%; those are exactly the onshore/cross-onshore directions that chop up the reef. Ideal surfing wind occurs only 23% of the time. Air temperatures hover at 27.8°C, the water is a warm 29.2°C, and heavy monsoon rainfall (9.49 mm/day) keeps the atmosphere unstable. Look for brief windows when the wind drops or swings WSW/SW; otherwise expect lumpy, section-heavy conditions.
Average Spot conditions at Uluwatu in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Uluwatu during January. 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 Uluwatu for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Uluwatu for January. 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 Uluwatu.