The best time to book a holiday rental in Castelo is during the peak season from July to September. This vibrant period attracts a multitude of visitors eager to experience the sun-soaked charm of Lisbon District, with July standing out as the most popular month. During this time, you can fully enjoy the outdoor cafes, lively street performances, and the stunning vistas from the castle overlooking the city.With temperatures typically ranging from 20 to 30 degrees Celsius, the warm weather is superb for exploring the historical sites and indulging in the local cuisine. The atmosphere is buzzing, with plenty of activities and cultural events to engage in, ensuring you have a memorable visit.If you're looking for a more budget-friendly option, consider planning your trip in November. This month offers a quieter experience, allowing you to explore Castelo's enchanting streets and beautiful architecture without the crowds. Plus, the mild temperatures in late autumn still create a comfortable environment for sightseeing and enjoying the picturesque surroundings.