The climate in the central highlands, including Asmara, is near perfection, usually in the 70â€™s or 80â€™s during the day, cooling off to the 50â€™s at night. There is little humidity and it seldom rains except during the July/August rainy season when daily afternoon showers are the norm. Asmara receives about 21 inches of rain each year. April, May and June are the warmest months on the plateau, with the cooler season stretching from November to March.
Temperatures in the lowlands can be scorchingly hot, typically ranging from 105°F to 120°F, sometimes more, in August. Along the coast, including in the port cities of Massawa and Assab, high humidity often accompanies the heat. Winter highs here are around 90, with evening temperatures in the 70s.