Enjoy a luxury all inclusive Europe holiday with no hassle whatsoever when you travel with Club Med. The climate in Portugal holiday destinations can vary hugely depending on when you choose to take your European break. Portugal is characterised by warm weather in summer with a wet season in winter. This Mediterranean climate benefits from refreshing sea breezes in the humid months, when temperatures can reach as high as 40°C. You can experience bouts of this warm weather even during September and October in most areas of Portugal.