Conditions at Sesimbra in July
July: High Pressure Rule
July is the flattest month of the year. Average surf is around 3ft (1.0m) and the average period bottoms out at 8.7s. NW swell dominates at 67%, with WNW another 24%, almost all of it below 1.5m. Sesimbra is the definition of small, groveling surf in July. The good news is the wind is ideal 43% of the time, and NNW flow is very strong at 47%, giving plenty of clean but weak waves. Water temp stays at 17.3°C, air temp averages 20°C, and rainfall is negligible. If you score a small SSW/SW groundswell here in July, you have won the summer lottery; otherwise bring a longboard or a foamie and enjoy the ocean bath.
Average Spot conditions at Sesimbra in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Sesimbra during July. 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 July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sesimbra for July. 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.