Conditions at Sesimbra in January
January: Midwinter Muscle
The heart of winter comes loaded. Average swell height is around 6ft (1.8m) and the average period is a powerful 13s, so at Sesimbra you are looking at solid, long-period groundswell. The wave rose is dominated by W/WNW/NW swells, with WNW at 37% and NW at 23% making up the bulk of the energy; direct SSW/SW swells are uncommon, but they are the ones that truly light up the SSW-facing bay. N/NNE/NNW winds dominate the wind rose, and winds are ideal for surfing around 48% of the time. That offshore/cross-offshore flow keeps the NW groundswell lined up as it refracts into the cove. Water temperature is 15°C and air temps average 13°C. Rain averages 2.3mm per day, often tied to the same frontal systems that produce the best swell windows.
Average Spot conditions at Sesimbra in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Sesimbra 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 Sesimbra for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sesimbra 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 Sesimbra.