Canberra's climate has four very clearly defined seasons, hot, dry summers, and mild winters with heavy fog and frequent frosts, with a rare spot of snow in the CBD and surrounding areas. Snow falls in the city occur one time every three winters approximately, but they don't last much time and quickly dissipates, thunderstorms can occur between September and March and maybe you'll get afraid of some of them.

Places I have to see when there:
Parliament House of Australia
National Library of Australia
Telstra Tower & Zooquarium