A natural spectacle only happens in wintertime, aurora borealis can be spotted between September and March every year, sometimes till April if you are lucky. Picking a right location is the first thing to do to see the aurora borealis. Regions within the Arctic Circle have a better chance to see, such as the northern part of Sweden, Norway and Finland.  

Portugal is at its best in July and August – the summer season full of sunshine after the grey, rainy and damp winter is gone. Although daytime temperature can rise up to over 30oC, you can enjoy comfortable weather at night with cool breeze blowing from Atlantic Ocean. Lisbon, the capital city of Portugal, is an important trading port in Europe and the Mediterranean region.