One of the many perks of Portugal is its year-round sunshine. Although the winter months can be a little chilly - average daytime temperatures are still around 16°C - the sun is often shining and skies are blue. The best time to travel to Portugal is during late spring (March to May) and early autumn (September to October) when the weather is warm. In the summer months, beaches become crowded, hotels rates are higher and the temperature can be unbearably hot.