The public has to be “realistic” about loosening of lockdown restrictions, the environment secretary has said.
George Eustice also urged the public to abide by the current measures over the weekend, with Boris Johnson due to deliver an update on Sunday.
It comes after Wales announced “modest” changes from Monday – allowing people to exercise outside more often.
Mr Eustice also announced a £16m fund to deliver millions of meals to those struggling during the pandemic.
A further 626 coronavirus deaths were confirmed on Friday, taking the UK total to 31,241, including a six-week-old baby with an underlying health condition.
Asked by the BBC’s Ben Wright about whether the prime minister would ease restrictions in line with the announcement from Wales, Mr Eustice said there would be “no dramatic overnight change” and the government would be “very, very cautious as we loosen the restrictions we have”.
Speaking at the No 10 daily briefing, he reiterated that the “stay at home” message remained in place over the “sunny bank holiday weekend”.
He also said that while each of the devolved nations might take slightly different approaches, they were working together “to try to have a broadly similar UK approach”.
When asked whether the R rate – the rate at which the virus spreads – had to remain universally low before lockdown could be lifted, Prof Stephen Powis, national medical director of NHS England, said it would vary from place to place but “the important thing is that as a whole it stays below one”.
The R rate is the number of people that one infected person will pass the virus on to on average.
Scotland, Wales and Northern Ireland have the power to make their own decisions on lockdown regulations – and could lift restrictions at a different rate.
Earlier, Wales First Minister Mark Drakeford said he wanted the nation to move in step with the rest of the UK when he announced the changes to its lockdown, which included allowing garden centres and libraries to reopen.
Scotland’s First Minister Nicola Sturgeon said on Friday the only change she was considering in the immediate term was on the limits to outdoor exercise.
Ms Sturgeon said there had been a “helpful recognition” from the prime minister that the four UK nations “may well move at different speeds if our data about the spread of the virus says that that is necessary to suppress it”.
Arlene Foster, Northern Ireland’s First Minister, said there would only be “nuanced changes” to measures in the region.
At the government’s daily briefing, Mr Eustice said the government was considering changing the restrictions on funerals but said he did not want to prejudge what Mr Johnson would say on Sunday evening.
“People want the opportunity to pay their last respects – obviously we have to be very conscious of large social gatherings but it is something we are giving consideration to,” he said.
The government announced 97,029 tests had been delivered in the 24 hours to 09:00 BST on Friday, just shy of the 100,000 target Health Secretary Matt Hancock set for the end of April.
That aim was achieved on 30 April and 1 May but has not been reached since.
When asked why in some cases it was taking up to 10 days for people to get their test results back, Mr Eustice said there would be daily fluctuations in availability of tests in any given area.
“You will get some days of surplus tests where people haven’t come forward to take them in some areas, and you will have other areas where you don’t have quite enough capacity for that local demand,” he said.
The prime minister has set a target of increasing testing capacity to 200,000 by the end of May.
Prof Powis also told the briefing that data would be published on the deaths of those with learning disabilities and autism who had tested positive for coronavirus.
He said: “We’re looking at how we can report on those groups and I’ll commit that from next week we will be publishing data on learning disabilities, autism and mental health patients who died in acute hospitals, and we’ll do that on an ongoing basis.”
Mr Eustice announced more support for vulnerable people, saying millions of meals would be delivered over the next 12 weeks to help during “this enormously challenging time”.
At least 5,000 frontline charities across England will benefit from the £16m fund which comes from the £750m pot announced for charities by Chancellor Rishi Sunak on 8 April.
“These are extraordinary times but I think that £750m is very welcome and it’s helped a lot of charities with the additional burdens that they have as a result of the coronavirus,” Mr Eustice added.