The autumn season in Argentina began on Friday, March 20, coinciding with the autumn equinox, an astronomical event that signifies the end of summer and the onset of a period characterized by cooler temperatures and gradual changes in the landscape. Although the arrival is typically expected on March 21, the specific date varies each year due to Earth's orbit. This year, the seasonal change was noted one day earlier.

On this day, a unique phenomenon occurs whereby day and night have nearly equal durations. This balance in light and dark hours happens because sunlight strikes the equator perpendicularly, marking the official start of the new season in the southern hemisphere. Analysts highlight how this transition affects climate patterns and prepares the region for the coming months.

With the autumn equinox occurring early, the implications extend beyond just the calendar. Residents can anticipate shifts in temperature and weather conditions that influence daily life, agriculture, and the natural environment. As such, understanding the equinox's timing and its effects can be crucial for various sectors, including farming and tourism, which adjust their plans according to seasonal changes.