How much time is left until Summer Solstice 2026 ?
The Southern Hemisphere summer solstice occurs between December 21st and 22nd each year.
It is the longest day of the year in Argentina, Chile, Uruguay, Paraguay, and southern Brazil.
In 2026, the summer solstice occurs on December 21st at 20:03 UTC.
The austral summer lasts from December 21st to March 20th (autumn equinox).
In Argentina it marks the start of the high season at destinations such as Mar del Plata, Bariloche, and Carlos Paz.
In Chile summer coincides with the longest school holidays of the year.
It is the period of greatest tourist activity throughout the Southern Cone.