September is the most popular time to visit Santo Antonio, Lisbon District, as the summer crowds begin to dwindle, yet the delightful weather remains ideal for exploration. This period falls within the peak season, which spans from July to September, attracting tourists eager to soak up the vibrant culture, historic sites, and stunning coastal views.During September, the climate is pleasantly warm, with temperatures typically ranging from 15 to 27 degrees Celsius. This makes it a fantastic time for outdoor activities such as leisurely strolls along the picturesque waterfront or exploring the charming streets filled with local shops and cafés. The city's vibrant setting is complemented by a variety of events and festivals, providing an immersive experience for visitors.For those seeking a more budget-friendly option, November offers a quieter escape with the added benefit of lower accommodation prices. While the weather is cooler, with temperatures around 10 to 18 degrees Celsius, it's still a lovely time to explore the city's historical sites without the hustle and bustle of peak tourist season.Ultimately, your choice of when to visit Santo Antonio will depend on whether you prefer the lively summer vibes and warm weather of September, or the peaceful charm and affordability of November.