Weather and temperature in Portugal in September

The Climate of Portugal at the Onset of Autumn

In September, Portugal offers excellent weather conditions for tourists. It is a time when summer slowly gives way to autumn, and temperatures become more moderate. The country is characterized by various climate zones, which influence the diverse weather in different regions.

Average Temperatures in September

Temperatures in September in Portugal are generally pleasant. During the day, they can range from 24°C in the north to as high as 29°C in the south. At night, temperatures drop, fluctuating between 15°C and 20°C. Here are the average temperature values for the major cities:

City Average daytime temperature (°C) Average nighttime temperature (°C)
Lisbon 27 18
Porto 24 15
Faro 28 19

Sunshine and Rainfall

September is one of the sunniest months in Portugal. The number of sunshine hours per day averages around 9. It is a month when rain showers occur sporadically. However, after mid-September, the likelihood of rainfall increases, especially in the northern part of the country.

Weather in the South vs. the North

The southern part of Portugal, particularly the Algarve region, retains summer heat a bit longer. There, September is still a month of warm beach days. In contrast, northern areas such as Porto may experience earlier weather changes. Cooler winds and higher humidity levels appear in these regions.

The Ideal Time for Sightseeing

September is an excellent time to visit Portugal. Moderate temperatures are conducive to long walks in the cities and exploring numerous historical sites. Despite a reduction in the seasonal tourist crowds, attractions remain open, and local festivals and events continue to enjoy popularity.

Summary

Portugal in September offers a variety of weather conditions, ideal for tourists looking to avoid the summer heat. It’s a time when you can enjoy the full bloom of summer in the south while also preparing for a more tranquil transition to autumn in the north. Therefore, September is a perfect time to visit this picturesque country.