The best time to visit Sintra depends on your personal preferences and the type of activities you want to do.

Overall, Spring (March to May) and Autumn (September to November) seasons are the best times to visit Sintra as the weather is pleasant and mild, with average temperatures ranging from 15°C to 20°C. The crowd is not at its peak either. The days are shorter than in Summer, however, so leave early in the day to make the most of your time in Sintra.

Summer is the busiest and most crowded time to visit Sintra, as the weather is warm and sunny. Winter is the off-season in Sintra, and the weather can be cold and rainy.

There are several ways to get around Sintra, depending on your preferences and budget:

• Foot: Sintra is a small town, and many of the main attractions are located within walking distance of each other. You can easily explore the town on foot and enjoy the charming streets and historic buildings.
• Bus: Sintra has a good public transportation system, and several bus routes connect the town to the surrounding areas. The buses are operated by the Carris company and are a convenient and inexpensive way to get around.
• Taxi: Taxis are widely available in Sintra, and they can be a convenient way to get around if you don't want to walk or take the bus. You can hail a taxi on the street or book one in advance.
• Car: If you have your car, you can easily explore the surrounding areas of Sintra. There are several parking lots in the town, and the roads are well-maintained and easy to navigate.
• Bike: Sintra is a small town, and it is easy to explore by bike. You can rent a bike from one of the many rental shops in the town, or you can bring your own.

• The Pena Palace is a UNESCO World Heritage Site and one of the most popular tourist attractions in Sintra. It is a colorful and ornate castle that was built in the 19th century in the Manueline and Moorish styles.
• The Quinta da Regaleira is a UNESCO World Heritage Site and a beautiful estate located in the heart of Sintra. It features a palace, gardens, underground tunnels, and wells, and it is a popular spot for picnics and outdoor activities.
• The Sintra National Palace is a historic palace located in the center of Sintra. It is known for its ornate architecture and intricate decorations, and it is a popular tourist attraction.
• The Castelo dos Mouros (Moorish Castle) is a ruined castle located on a hill overlooking Sintra. It was built in the 8th century by the Moors and offers breathtaking views of the surrounding area.
• The Sintra Mountains are a beautiful and lush mountain range that surrounds Sintra. They offer several hiking trails and picnicking spots, and they offer breathtaking views of the surrounding area.
• The Monserrate Palace is a beautiful palace located in the hills of Sintra. It was built in the 19th century in the Gothic style and features beautiful gardens and a stunning panoramic view of the surrounding area.
• The Palácio Nacional de Queluz is a stunning palace located in the town of Queluz, which is just a short distance from Sintra. It was built in the 18th century in the Rococo style and is known for its ornate decorations and beautiful gardens.

• If you plan on visiting several attractions in Sintra, consider purchasing a Sintra Card. It allows you to visit several attractions at a discounted price.
• Purchase your tickets in advance online to save time. Many of the popular attractions in Sintra can get very crowded, and it can be time-consuming to purchase tickets on-site. 
• Take the train from Lisbon to get to Sintra. Sintra is easily accessible by train from Lisbon, and the train ride is a scenic and convenient way to get to the town.
• Renting a bike is a convenient and environmentally friendly way to get around and see the sights. Sintra is a small town, and it is easy to explore by bike. 
• Consider staying in a central location to make it easier to explore the town on foot. Sintra is a small town, and many of the main attractions are located within walking distance of each other.
• Visit outside of the summer season to witness the city at its best. During the months of April, May, September, and October, the weather is mild and well-suited for exploring Sintra.