Climate in Sintra (Lisbon Region), Portugal

The graphs below show the monthly weather averages over the year.
* Climate data from: Cascais, Portugal (11 KM, 7 Miles).

Average day and night temperature

The mean minimum and maximum temperatures over the year. Show in Fahrenheit

Average min and max temperatures in Cascais, Portugal   Copyright © 2022  weather-and-climate.com

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly sunhours in Cascais, Portugal   Copyright © 2022  weather-and-climate.com

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Daily percent of sunshine

The mean percent of sunhours during the day over the year

Average percent of sunshine in Cascais, Portugal   Copyright © 2022  weather-and-climate.com

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Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc. Show in Inches

Average precipitation (rain/snow) in Cascais, Portugal   Copyright © 2022  weather-and-climate.com

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average rainy days (rain/snow) in Cascais, Portugal   Copyright © 2022  weather-and-climate.com

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Average humidity

The mean monthly relative humidity over the year

Average relative humidity in Cascais, Portugal   Copyright © 2022  weather-and-climate.com

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Weather Forecasts for Sintra (Lisbon Region)

FRI Aug 19
32°C | 18°C
Sunny

Sunny

SAT Aug 20
30°C | 19°C
Sunny

Sunny

SUN Aug 21
28°C | 18°C
Sunny

Sunny

The best time of year to visit Sintra in Portugal

During the month of May, June, July, August, September and October you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 26 degrees Celsius (79°F).

Other facts from our historical climate data:

  • Does Sintra have a dry season?
    Yes, the months June, July and August are very dry.
  • Which is the warmest month in Sintra?
    August has an average maximum temperature of 26°C (79°F) and is the warmest month of the year.
  • Which is the coldest month in Sintra?
    The coldest month is January with an average maximum temperature of 15°C (59°F).
  • Which is the wettest month in Sintra?
    January tops the wettest month list with 98mm (3.9in) of rainfall.
  • Which is the driest month in Sintra?
    July is the driest month with 2mm (0.1in) of precipitation.
  • Which is the sunniest month in Sintra?
    July is the sunniest month with an average of 385 hours of sunshine.

  • No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.