He also advises some counties should move to Level 4.
A leading health expert believes the whole country should move to Level 3 restrictions, with some counties moving to Level 4.
It comes as new data raises fresh concerns for counties Louth, Donegal and Waterford.
Louth is now at a rate of 101.1 cases per 100,000 population over the last 14 days. In Donegal however, it has jumped from 72.9 on Friday to 96.7 yesterday, with Waterford going from 85.2 to 93.8 in the same period.
DCU Professor Anthony Staines believes those three counties, as well as Dublin, should move to level 4 restrictions, with the rest of the country moving to Level 3.
"We cannot continue chasing it around the country and when it starts rising out of control, only at that point, intervening to sit on it," he explains.
"We need to get ahead of this".
Dublin's incidence rate has jumped to 138, while in Dublin North West, in particular, it is now over 200.
Other counties such as Kildare and Wicklow have seen small rises since Friday.
