Conditions at Monte Clerigo in December
December: Winter Gold
December delivers some of the year's best combinations of size, period and clean wind. Average swell height is 7-8ft (2.4m) with a 12.7s period, and the offshore wind window peaks at 33% - the most reliable of the year. The swell direction is still good, with NW at 25.1%, WNW at 16.8% and W at 5.7%, although WSW/SW and even S/SE energy appear more often as lows track over Iberia. NNW wind drops to 14.2% and the NE/NNE flow picks up, often creating lighter morning conditions. Water temp is 16.1°C, air averages 12.2°C, and rainfall is high at 2.64mm/day. When the storm track aligns, December produces big, grinding, long-period NW swell at Monte Clerigo with offshore southerly to westerly winds.
Average Spot conditions at Monte Clerigo in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Monte Clerigo 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 Monte Clerigo for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Monte Clerigo 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 Monte Clerigo.