Summer Start Date Southern Hemisphere -

In the Southern Hemisphere, the astronomical start of summer is tied to the December solstice—the point when the South Pole is tilted most directly toward the Sun. This typically occurs between , most often on December 21 or 22 .

Thus, while the “official” astronomical summer begins around December 21–22, many practical calendars—and even some national weather services—consider summer to have already begun on the first day of December. summer start date southern hemisphere

It's important to note that meteorologists and climatologists often use a simpler system for record-keeping: they define summer as the three hottest months of the year, which in the Southern Hemisphere are . This meteorological summer always starts on December 1 , regardless of the solstice. In the Southern Hemisphere, the astronomical start of