Jalapa, Guatemala experiences a warm and relatively dry climate year-round. The coolest months are January and November, with average temperatures in the mid-20s Celsius, while the hottest months are March, April, May, and September, with average temperatures often reaching over 23°C. June to August is characterized by slightly cooler temperatures, with averages ranging from 21 to 22°C. October is another warm month, with temperatures similar to those of the spring months. The temperature range within each month can be quite large, with some days experiencing highs in the mid-30s or even low 40s Celsius, while others may dip into the teens.