More than 100 buildings have been destroyed by the fires, which continue to burn.
Phil Douglas from the Tasmanian Fire Service said there had been no substantial change overnight, with the Repulse and Forcett fires still fairly active.
A heavy dew overnight had prevented backburning, but firefighters would take advantage of mild conditions today to strengthen containment lines.
Authorities are trying to get through Arthur Highway.
"It's a pretty hard thing to put a timeline, but it's a high priority," Mr Douglas told ABC Radio.
The weather bureau expected conditions today to be fairly similar to those on Sunday.
Around 400 more evacuees were due to be ferried by boat from the Tasman Peninsula on Sunday night, while police were investigating whether it was safe to escort cars out on the closed Arthur Highway.
Prime Minister Julia Gillard will visit the state today.
- AAP