1 Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components.  A chemical substance is composed of one type of atom or molecule.
February (Inca Trail Closed) 1  Overview: Another wet month, and not the best time to visit to Machu Picchu. 2  Temperature: Daytime average highs are around 20 degree C (68F) and night time average lows around 8C (46F) 3  Humidity: Average daily relative humidity is around 66 %.
Machu Picchu weather The time in Machu Picchu is warm and humid during the day and fresh at night. The temperature ranges between 12ÂºC and 24ÂºC (54ÂºF-75ÂºF). Generally this site is rainy (1955 mm per year) especially between November and March. Rains and humidity. From November to March is the rainy season in Machu Picchu, while between April to November is the dry shiny season.