Lisbon weather in September (Lisbon Region, Portugal)

How is the weather in Lisbon in September? Check out this comprehensive weather guide.

In Lisbon the weather in September is generally perfect, characterized by high temperatures and moderate rainfall. September is a summer month. Daytime temperatures hover around 25°C, while nights can cool down to about 17°C.

Lisbon in September usually receives moderate rainfall, averaging around 32 mm for the month. When we look at the climate data from the last 30 years, we can expect around 6 days of rain.

The days are predominantly sunny, with an estimated total of around 280 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. May, June, July, August, September and October generally stand out with the best circumstances. While January, February and December tend to showcase less optimal conditions.

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

 

Lisbon, monthly averages in September

Min Temperature 17°C  

Max Temperature 25°C  

Chance of Rain 19%  

Precipitation 32 mm  

Rainy days 6 days  

Sunshine 280 hours  

Percentage Sunshine 75%  

Where to go in Portugal in September

Find out more about the weather in Portugal in September and which places have the best weather 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 Lisbon in September?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool.

What To Do

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

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Lisbon.

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 climate conditions. Find out where to go with our weather planner.