On Tuesday, the mountain town of Vicuna in central Chile hit 37 degrees Celsius (almost 99 degrees Fahrenheit).
Meanwhile in Buenos Aires, the temperature exceeded 30˚C (86˚F) on Tuesday, making it the highest August 1 temperature since record-keeping began. The average August temperature in Buenos Aires is usually between 18˚C (64F) and 9˚C (48F).
Several cities across Uruguay also recorded temperatures of 30˚C (86˚F) on Wednesday.