September marks the transition from the dry season to the wet season in Cusco, Peru. Typically, days are characterized by bright sunshine and mild temperatures, while nights can be quite cool. Expect average daytime highs around 20C (68F) and nighttime lows dipping to 5C (41F). Rainfall becomes more frequent towards the end of the month, although showers are usually brief and intense.
Understanding the climatic conditions of this period is crucial for travelers planning to visit Cusco and explore its surrounding areas, including Machu Picchu. Packing layers is essential to adapt to fluctuating temperatures throughout the day. The drier weather at the beginning of the month provides optimal conditions for hiking and sightseeing, while the increasing rainfall later in September can impact outdoor activities. Historically, September signifies a shift in agricultural practices for local communities, as they prepare for the rainy season and its influence on crop cycles.