Sintra weather in September (Lisbon Region, Portugal)

Is Sintra a good destination in September, weather-wise? Our page offers a comprehensive look at the weather you can expect this month.

Temperatures

You’ll find the weather in Sintra during September to be perfect, with high temperatures and moderate rainfall. The temperature during the day can rise to approximately 23°C. At night, it falls to around 18°C.

Precipitation

Sintra in September usually receives moderate rainfall, averaging around 32 mm for the month. Climate data suggests that about 6 days will experience rainfall.

Average sunshine

The days are predominantly sunny, with an estimated total of around 278 hours of sunshine. These sun-filled days are perfect for spending time outside. Whether it's playing sports, visiting a park, or going for a bike ride.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Sintra. June, July, August, September and October typically offer the most agreeable circumstances. On the other hand, January, February, March and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Sintra climate page with graphs.

 

Sintra, monthly averages in September

Min Temperature 18°C  

Max Temperature 23°C  

Chance of Rain 21%  

Precipitation 32 mm  

Rainy days 6 days  

Humidity 75% *  

Sunshine 278 hours *  

Percentage Sunshine 75% *  

Data from: Cascais, Portugal (11 KM, 7 Miles).

Where to go in Portugal in September

Find out more about the weather in Portugal and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Sintra, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

10/10

Outdoor sports

10/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Sintra.

Our site offers climate and forecast data for every country in the world. Are you going to Portugal? On this website you can find historical weather averages for many cities in Portugal. 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.