Under the definition, summer begins at the summer solstice , which occurs around December 21–22 in the Southern Hemisphere. For example, in 2026, the solstice is on December 22 .
Australia’s summer officially starts on according to the meteorological definition, which aligns with the calendar months for consistent climate record-keeping.
Under the definition, summer begins at the summer solstice , which occurs around December 21–22 in the Southern Hemisphere. For example, in 2026, the solstice is on December 22 .
Australia’s summer officially starts on according to the meteorological definition, which aligns with the calendar months for consistent climate record-keeping. when does australia's summer start