Huaraz's climate is characterized by mild temperatures during the spring and autumn months, with average highs ranging from 19°C in May to 20°C in December. Summer months, June to August, are cooler than expected, with averages between 16°C and 18°C. Winters are relatively warm, with January not mentioned but December's high of 24°C indicating mild temperatures during this period. The temperature range is generally narrow throughout the year, with little variation between seasons.