It's best to wear long trousers when visiting Auschwitz, regardless of the weather. This signifies respect for the memory of those who suffered in the concentration camps and the historical site. Wearing shorts could be perceived as disrespectful by some visitors and staff.

There is no "official" dress code that strictly prohibits wearing shorts at the Auschwitz-Birkenau Memorial and Museum, but visitors are strongly urged to dress with solemnity and respect. The site is a former concentration and extermination camp and serves as a massive cemetery and memorial for over 1.1 million people. Consequently, extremely revealing clothing—such as very short "booty" shorts, crop tops, or swimwear—is considered highly inappropriate and may result in being asked to cover up by staff. During the hot summer months, many visitors do wear knee-length shorts or capris, which are generally accepted as long as the overall appearance is modest. Beyond clothing, the museum has strict rules about "behavioral" respect: silence is requested in certain areas (like the gas chamber ruins and the "Death Wall"), and "joyful" photography or selfies are viewed as offensive. Because you will be walking several miles over uneven terrain and gravel, the choice of footwear is actually more critical than the length of your pants; sturdy, comfortable walking shoes are essential. Essentially, while you won't be turned away for wearing standard shorts on a 90°F day, you should ensure your attire reflects the gravity of the location you are visiting.