Generally, Tasmania's climate is crap. There certainly won't be much in the way of heat, chances are you'll be wearing a jumper most of the time. That's not to say it'll be cold all the time, there are warm days but being Tasmania, they'll be outnumbered by crappy cold ones.
Hobart's average low and high temps in November are 10/19ºC.
You can also check out this link to get some idea of what November is like in Hobart
http://www.bom.gov.au/climate/dwo/200711/h...21.200711.shtml
Usual Melbourne summer weather here, cloudy and 19C