The northern part of Chile is located in the Atacama Desert, which is one of the driest places on Earth. The average temperature in the Atacama Desert is around 18°C (64°F), but it can reach up to 40°C (104°F) during the day and drop down to 0°C (32°F) at night.
The central part of Chile has a Mediterranean climate, with warm, dry summers and cool, wet winters. The average temperature in Santiago, the capital of Chile, is around 15°C (59°F) in January and 8°C (46°F) in July.
The southern part of Chile has a maritime climate, with cool, wet summers and cold, snowy winters. The average temperature in Punta Arenas, the southernmost city in Chile, is around 9°C (48°F) in January and 2°C (36°F) in July.
In addition to the variation in temperature from north to south, Chile also experiences variations in temperature from east to west. The Andes Mountains run along the eastern border of Chile, and they block the flow of warm, moist air from the Pacific Ocean. As a result, the eastern slopes of the Andes are much drier and colder than the western slopes.
The temperature in Chile can also vary from year to year. The El Niño-Southern Oscillation (ENSO) is a climate pattern that affects the Pacific Ocean and the surrounding areas. El Niño events cause the Pacific Ocean to warm up, which can lead to changes in temperature and precipitation in Chile.