how walkable is melbourne if the weather is bad?

For comfortable weather while exploring, September and December are the recommended months to visit, with average temperatures of 12.5°C and 18°C respectively. In contrast, mid-year months are cooler, with June averaging 9.9°C and July averaging 9.3°C. Major city sights to explore include the Royal Exhibition Building, Carlton Gardens, Melbourne Museum, St Patrick's Cathedral, Eureka Tower, and Melbourne Zoo.