Chimaltenango's climate is mild and relatively consistent throughout the year, with temperatures rarely dipping below 10°C or rising above 30°C. The coolest months are January and November, with average temperatures ranging from 18-20°C, while the warmest months are May and April, with averages around 21-22°C. June to August is a period of stable temperatures, averaging 20°C, while September to October also remains relatively steady. Overall, the region experiences minimal temperature fluctuations, making it a pleasant destination year-round. The cooler months see slightly more rainfall than the warmer ones, but overall precipitation is moderate throughout the year.