The Algarve, located in the south of Portugal, enjoys warm, sunny weather throughout the year, but during the winter months it can feel quite cold. Average temperatures in the winter months range from 8-12°C (46-54°F). Daytime highs can reach up to 18°C (64°F), while nighttime lows can drop as low as 5°C (41°F) . Rain is also quite common throughout the winter, so you should be prepared with a waterproof jacket, dress in layers and bring a sweater!