Porto weather in September (Norte Region, Portugal)

How is September weather typically in Porto? Find all the essential weather information for this month in our guide.

Temperatures

The weather in Porto during September is typically perfect, with high temperatures and moderate rainfall. September is a notable month of the summer season. Daytime temperatures are expected to be around 24°C, cooling off to about 17°C at night.

Precipitation

Porto in September usually receives moderate rainfall, averaging around 62 mm for the month. Historically, approximately 9 days this month are expected to have rain.

Average sunshine

Enjoy a sunny month with about 224 hours of sunshine, providing a cheerful and lively atmosphere.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Porto. May, June, July, August and September typically offer the most agreeable circumstances. On the other hand, January, February, March, November 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 Porto climate page with graphs.

 

Porto, monthly averages in September

Min Temperature 17°C  

Max Temperature 24°C  

Water Temperature 18°C  

Chance of Rain 29%  

Precipitation 62 mm  

Rainy days 9 days  

Humidity 76%  

Windspeed 14 km/h  

Sunshine 224 hours  

Percentage Sunshine 64%  

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 Porto, 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. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes. With a water temperature of around 18°C there is no need to bring your swimwear.

What To Do

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

Swimming

9/10

Cycling

10/10

Walking

10/10

Barbeque

8/10

Camping

8/10

Outdoor sports

10/10

Interested in more climate information?

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

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.