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 Forecast. The warmest day over the next 7 days in Machu Picchu is forecast to be 23rd April at 28Â°C (82Â°F) and the warmest night on 23rd April at 14Â°C (57Â°F). The average temperature over the next 7 days is forecast to be 23Â°C (73Â°F) .