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