Though you could spend an entire day touring the site, the average time needed once inside is about two to three hours. Like most Roman-built cities, Pompeii is well organized with a clear street plan, but the modern-day signposts are often wrong.

To truly appreciate the scale and historical significance of Pompeii, you should allow a minimum of three to four hours for a "standard" visit. The archaeological site covers over 60 hectares, and a three-hour itinerary typically allows you to see the "hits," including the Forum, the Lupanare (brothel), the House of the Faun, and the impressively preserved Amphitheatre. If you are a history buff or wish to visit the more distant sites like the Villa of the Mysteries, you should plan for a full day (six to seven hours). It is important to remember that the site is almost entirely outdoors with very little shade and uneven cobblestone streets, which can make a long visit physically taxing, especially in the summer heat. Many visitors find that a four-hour guided tour provides the perfect balance of deep historical context without the "ruin fatigue" that can set in during a full-day trek. Regardless of the duration, wearing sturdy walking shoes and bringing a refillable water bottle is essential, as there are several ancient fountains throughout the park where you can top up with cold, potable water.