Guatemala City's rainy season is May through October, and its dry season November through April. Temperatures are generally moderate during both seasons, ranging from an average low of 53°F in January to 60°-85°F in April. Frost and snow are unknown, and flowers bloom year round.
Rainfall is heaviest from June through October, and the annual average is about 52 inches. Wet months can cause mildew damage to clothing, shoes, luggage, and upholstered furniture. During the dry season, days are clear and the sun is hot at midday with chilly to cold mornings and evenings. During these months it is dusty, foliage turns brown, grass and shrubs wither, and gardens must be watered.