Madeira weather forecast along Madeiras coastal areas is temperate and mild with no great extremes-although the temprature does drop the higher up you go, so it is advised to take warm clothes when visiting the mountains. Obviously, the humidity is higher in the summer as is the rainfall in the winter.Madeira's average temperatures range from 18C in winter to 25C in summer, with sea temperatures being virtually the same due to a warm gulf stream that surrounds the island all year round. This makes Madeira the ideal getaway right throughout the year! Below you will find a 5 day madeira weather forecast in Funchal and also an annual avarage weather pattern.