Conditions at Alwars in December
December: Full NE Monsoon - Bigger Swell, Onshore Wind
December brings the northeast monsoon into full force. Average wave height climbs back to 3.3ft (1.0m), though average period dips to 8.0s, meaning the energy is more windswell-like and punchy than long-period groundswell. The direction mix is the best of the year: ENE (37%), NE (24%) and E (12%) combine for roughly 73% of all swell, right in Alwars' preferred window. Most waves fall in the 1.6-3.3ft (0.5-1m) and 3.3-4.9ft (1-1.5m) range, with a scattering of 4.9-6.6ft (1.5-2m) waves from ENE and NE.
The catch is exactly the same as January: monsoon winds. NNE (42%) and NE (29%) dominate, so onshore chop is the norm; ideal offshore flow is measured at just 6% of the time. Your best windows will be dawn, when the land breeze can briefly clean up the faces before the NE trades kick back in. Air temps are mild at 25.9°C, water is 27.7°C, and rainfall is a relatively dry 2.35 mm/day for the region. If you manage the wind lottery, December offers the most consistent, correctly-directed surf of the year.
Average Spot conditions at Alwars in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Alwars 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 Alwars for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Alwars 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 Alwars.