Conditions at Ofir in December
December: Peak Winter Consistency
December represents the statistical peak of Ofir's surf season. The average swell height is 2.6m (8.5ft), the average period is 12.3 seconds, and - crucially - the wind is ideal for surfing 53% of the time, the highest of the year. Swell direction remains squarely in the ideal window: NW at 17.3%, WNW at 16.1%, W at 7.0%, and WSW at 3.5%, plus a healthy NNW component at 6.3%. The heaviest energy arrives from the WNW/NW in the 1.5-2.5m (5-8ft) range, with frequent over-2.5m (8ft+) sets during active storm cycles.
The winds are the crowning glory of December. The offshore quadrant shines: E at 13.6%, ESE at 8.6%, ENE at 7.1%, and SE at 6.5% make the east/southeast sector the dominant wind group, easily outpacing the Atlantic onshore flow. This is the month when clean, powerful, long-period groundswell lines up best at the beach. Air temperatures average 10.6°C, water temperature cools to 13.6°C, and precipitation is high at 4.67mm/day - winter in Portugal at its finest.
Average Spot conditions at Ofir in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Ofir 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 Ofir for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ofir 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 Ofir.