Is Douro Valley Warmer Than Porto?

Yes, generally, the Douro Valley tends to be warmer than Porto. 

On average, Douro Valley temperatures are 11F (6C) higher than in Porto in the summer and slightly lower in the winter.


Douro Valley in July

The Douro Valley is an inland region located east of Porto. The valley is sheltered by the Marão mountains (Serra do Marão), which creates a microclimate that is typically hotter and drier compared to the coastal climate of Porto in the summer and colder in the winter.

Annual rainfall in the Douro Valley is low at 761 mm and the further east, the drier the climate becomes. At the east of the valley, annual precipitation falls to around 300 mm. 

View on Pinhao in November

Average Temperatures in the Douro Valley

The Douro Valley locals often talk to me about into their long and cold winters with temperatures falling below zero at night and sizzling hot and dry summers with 110F (45C) temperatures.  You can often hear them say “9 months of winter and 3 months of hell” about the Douro Valley weather.

Alto Douro in June

The climate is Douro is beneficial to growing olives, almonds, cherries and of course, grapes.

Winemakers highlight a 1.2°C rise in the average temperature over the past 35 years, which defines new strategies in preventing heat stress and achieving optimal ripeness.  It is common to turn toward more heat-resistant grape varieties and to carefully choose altitudes and aspect of slopes for optimal grape-growing.


Douro Valley Vineyards in November

Whatever the temperatures the magnificent Douro Valley is worth a visit in any season.

For more information on Douro Valley climate by month read my article Best Months to Visit the Douro Valley.  

Recommended Small-Group Tour

  • Free Cancellation

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  • 1-Hour Boat Tour

  • Best Value

For the best local car rental rates visit Rentalcars.

Picture of Polina Spirova
Polina Spirova

A sommelier and a wine tour guide. I travel all around Portugal collecting the best wineries to visit, best places to stay and eat.

I organize wine tours in the Douro Valley.

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