Lisbon has mild to warm moderate temperatures. Winters are very mild for its latitude, influence of the Gulf Stream. Average high for May is 22ºC.
n Lisbon, the summers are warm, dry, and mostly clear and the winters are cold, wet, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 47°F to 83°F and is rarely below 40°F or above 94°F.
Lisboetas love their early morning and late afternoon riverside strolls, and plenty of visitors also slip on comfortable walking shoes to explore Lisbon’s historic neighborhoods on foot. Navigating the maze of narrow and hilly streets, courtyards and staircases in Alfama, Mouraria and Madragoa can be a challenge in the summer heat, but the experience is at the top of most visitors’ must-do lists. Remember that flat, riverside neighborhoods such as Baixa, Cais do Sodré, Belém and Oriente are more manageable and just as picturesque!
The black-and-white patterns of the city’s calçada portuguesa(Portuguese pavements) are one of Lisbon’s calling cards, but be aware this is not the most walking-friendly surface in wet weather. The slick cobblestones can become slippery and are especially treacherous when making steep, downhill strides.
