June-AugustAs with most of Europe, summer is Lisbon's high season. Hotel rates climb and the city's monuments have tourists wall-to-wall. But with temperatures soaring above 80 degrees Fahrenheit, you can definitely add beach hopping to your itinerary.
July tends to be one the hottest months of the year in Lisbon. However, high temperatures are almost always tempered with a north sea-breeze, that may become windy in the afternoon.
Dress in Portugal is casual smart. Comfortable loose fitting and light clothing will work well for daytime in the summer. Bring one cardigan or light jacket to layer if needed at night. There is no need to dress very flashy or super formal.
Three days is the perfect length of time to fully discover Lisbon. Within these three days, you'll be able to explore all the main tourist attractions, experience the vibrant nightlife, sample some delicious foods and create wonderful memories of this amazing city.
Like many places in Europe, July and August are the peak tourist season in Portugal. August, in particular, is very busy due to the fact that it's Portugal's holiday month, so Portuguese travelers join the throngs of international tourists.
The Peak Season (July – August)The peak tourist season is July and August, and during this period there is a buzzing, vibrant atmosphere about Porto. The summer weather in Porto is hot, but not unbearable, as temperatures are moderated by the close proximity of the Atlantic Ocean.
The average temperature reaches up to a very warm 27°C (that's about 81°F), and temperatures never dip any lower than 18°C (about 63°F). The lowest temperature on record for July was 13°C.
Like any city, walking alone at night in Lisbon can pose some safety risks, including crime such as pickpocketing and theft, as well as the potential for violence or harassment. However, Lisbon is generally considered a safe city, and the risks can be mitigated by taking some precautions.
Be mindful of petty crimePickpocketing and bag-snatching are the main concerns to keep in mind, especially when traveling on the trams and metro in Lisbon or Porto. Avoid moving around during the crowded peak times, and don't zone out on your phone.