Average monthly water temperature in Porto, Portugal
On this page you find the mean water temperature over the year in Porto (Norte Region), Portugal. Discover when the water is at its warmest and coolest, perfect for planning your visit.
Porto experiences water temperature shifts throughout the year. The warmest month, August, reaches an average of 18°C.
The coldest month, March, averages 13°C. Visitors during these months can leave their swimming gear at home.