Bernal's climate is characterized by warm summers and mild winters, with temperatures gradually decreasing over the course of the year. The summer months of January, February, and December bring hot days, often above 35°C, but also cooler nights around 12°C. As autumn sets in, March and April see a slight drop in temperature, while May marks the beginning of winter with chilly mornings below 0°C. June and July are the coolest months, with temperatures rarely rising above 25°C. Spring returns in September, October, and November, bringing warmer days and cooler nights as temperatures gradually rise again.