Temperature in The Douro Valley in September
The Douro Valley is a region in Portugal. September is generally a warm month with maximum daytime temperatures around 24°C and nighttime temperatures around 17°C in Porto. The month of September is in the summer season.
What is the temperature of the different cities in the Douro Valley in September?
Find the average daytime temperatures in September for the most popular destinations in the Douro Valley on the map below. Click on a destination dot for more detailed information.
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Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Douro Valley's climate page.
Interested in more climate information?
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.