February in Antofagasta is the warmest month of the year. In February, the weather in Antofagasta is typically warm. Average daily high temperature in February is about 23 degrees above zero. On average, Antofagasta has 22 sunny, 6 partly cloudy, and 1 cloudy day in February. February as well as January, March, April, and May is considered the most comfortable time to visit Antofagasta.