Summer Start Date Southern Hemisphere Instant

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 .

For example, in cities like Sydney (Australia), São Paulo (Brazil), and Cape Town (South Africa), summer officially begins on the December solstice. In 2024, that date is ; in 2025, it will be December 21 as well, though the exact time varies by time zone. 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