With a population of around 21,600, Mount Barker sits in South Australia, Australia. The city operates in the Australia/Adelaide time zone.
In 2025, Mount Barker averaged an annual temperature of 57°F, with hottest temperatures reaching 102°F in February and lowest around 34°F in August. The city received approximately 17 inches of precipitation during the year.
View historical weather for Mount Barker · More cities in South Australia