This September 21, the beginning of spring is celebrated in Argentina and throughout the southern hemisphere, which means leaving behind the winter cold and a significant rise in the thermometer. But this is just the formal...   Strictly speaking, in 2023, spring will begin at 3:50 on September 23. According to the Naval Hydrography Service (SHN), at that time an astronomical phenomenon known as the equinox (from Latin, “equal night”) will occur, marking the seasonal change.   In this thermal range, indeed, it can be said that - for now - the September equinox in the hemisphere opens the doors of the climate that makes us feel better. Of course, 3 months later, the perhaps dreaded summer arrives, exaggerating its condition as such...