Mount Barker has a temperate climate with warm summers and mild to cold winters.
Summer temperatures can exceed 40 degrees Celsius, but rarely do, averaging around 26 degrees.
Overnight temperatures in winter can drop to 0 degrees, but rarely any lower and daytime winter temperatures average around 10-15 degrees Celsius.

Rainfall averages from around 24 millimetres (1 in) per month in January to over 100 millimetres (4 in) in July.
Mount Barker has a temperate climate with warm summers and mild to cold winters. Summer temperatures can exceed 40 degrees Celsius, but rarely do, averaging around 26 degrees. Overnight temperatures in winter can drop to 0 degrees, but rarely any lower and daytime winter temperatures average around 10-15 degrees Celsius.
Rainfall averages from around 24 millimetres (1 in) per month in January to over 100 millimetres (4 in) in July.
Mount Barker, Western Australia