Water restrictions may be imposed at Bridport in the North-East.
TasWater says in the past two years the East Coast has experienced "very dry conditions" with wet conditions on the West Coast.
"In the coming months, restrictions are likely for Bridport," a TasWater spokesperson said on Monday.
"There is currently no need for restrictions in other areas across the North or North-West, however TasWater will continue to routinely monitor the situation as per normal procedure.
"The need for water surety for our farmers and for firefighters, as we enter the bushfire season, are a serious consideration over the coming months.
"We encourage the community to continue to consider their water use in line with our current water conservation campaign."
TasWater will decide by the end of this week whether to impose water restrictions in the greater Hobart area, believed to be the first since 2002.
TasWater chief executive Mike Brewster said stage one restrictions usually involved "commonsense" measures including not hosing driveways and time constraints on watering gardens.
"TasWater has a dedicated team of professional engineers and scientists who are monitoring where water is used across the network, developing contingency plans and identifying supply augmentation projects," the spokesperson said.
"Those systems which extract a run-of-river supply are always more vulnerable to restrictions in times of low river flow (i.e. Launceston/East Tamar, Bridport, Scamander, Campbell Town/Ross).Because of this, it is difficult to estimate the exact storage levels in these areas."
Meanwhile, Tasmanian Irrigation said irrigation water restrictions in Tasmania's South East are on track to be eased this Friday following the stabilisation of dam buffer storages resulting from increased inflows, reduced irrigator usage and much-needed rainfall.
It thanked all irrigators "who have worked cooperatively and proactively to reduce water usage, which has assisted in stabilising dam levels and building up an essential buffer to minimise ongoing supply issues".