Medellin's weather is characterized by a relatively consistent temperature range throughout the year, with average temperatures rarely deviating more than 8 degrees Celsius. The coolest months are typically March and July, with average lows around 9-11°C, while the warmest months are January, February, September, November, and December, with average highs often reaching 29-30°C. Spring-like weather prevails in April, May, June, and October, with mild temperatures ranging from 12-28°C. The temperature variation between day and night is significant, with a typical diurnal range of around 15-20 degrees Celsius. Overall, Medellin's climate is often described as having an "eternal spring" due to its pleasant year-round weather.