Caracas has a tropical savanna climate, although its high altitude keeps temperatures lower than most tropical locations. Temperatures stay fairly constant year round, with averages between 60°F (16°C) and 79°F (26°C). The rainy season lasts from June to October, with an average of 16 to 19 days of rain per month. January to March is the driest period, with only three to six days of rain per month. December and January are known for heavy fog, and temperatures tend to drop in the evenings.