When planning a visit to the Douro Valley in Portugal, it helps to know that temperatures typically range from 14°C (57°F) in January up to 25°C (77°F) during the peak of August. Our detailed climate overview is based on data from Porto, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
In the Douro Valley, the months of May, June, July, August, September and October bring pleasant weather, with average temperatures ranging between 20°C (68°F) and 25°C (77°F).
Precipitation in the Douro Valley varies considerably throughout the year. The wettest conditions occur in November with 163 mm (6.4 in) of rain, while July stays relatively dry with 22 mm (0.9 in).
For those seeking sunshine, July usually has the brightest skies, making it an excellent time for exploring the region.
