Although the dry season extends from May through October, the driest period is in the cool mid-winter months. Temperatures are at their most pleasant, with warm days, low humidity, and virtually no rainfall. Mid-day temperatures average a very pleasant 79°F (26°C) in mid-winter, with deep-blue cloudless skies. However, nighttime temperatures fall dramatically. Early morning temperatures just before sunrise average about 50°F (10°C), and are often much colder.