September marks the transition from the dry season to the wet season in Cusco, Peru. Located high in the Andes Mountains, the city experiences distinct microclimates, but generally, September offers a blend of both seasons. Expect dry, sunny mornings with average temperatures around 16C (61F), often rising to a pleasant warmth. However, afternoons can bring cloud cover and an increased chance of rain showers, with temperatures cooling down slightly. Nighttime temperatures can drop significantly, reaching as low as 4C (39F).
Understanding the climatic conditions of this period is crucial for travelers planning to visit Cusco and explore nearby attractions such as Machu Picchu. Packing layers is essential to adapt to fluctuating temperatures throughout the day. The shift between seasons also marks a change in the landscape, with the dry, brown hillsides gradually beginning to turn green. Historically, this period signifies the beginning of the agricultural season for local communities, as the rains return to nourish the land.