For mainland Portugal (Lisbon, Porto, Algarve, etc.), the best time to visit is typically during spring (April to May) and autumn (September to October). During these months, the weather is pleasant, with milder temperatures and fewer crowds compared to the peak summer months. It’s an ideal time to explore the cities, enjoy outdoor activities, and visit historical sites without the scorching heat.

If you’re planning to visit Madeira, the best time to go is also during the spring and autumn months. However, Madeira enjoys a mild climate year-round due to its proximity to the Atlantic Ocean. Even during the winter months (December to February), temperatures in Madeira remain mild, making it a popular destination for winter sun seekers. The island is lush and green throughout the year, but the spring months are especially beautiful with the blooming of flowers.

If you prefer warm beach weather and are willing to handle larger crowds, then June to August is the peak tourist season for both mainland Portugal and Madeira.