Gordon Brown is having a tough time at office. Or at least that is what voters in the United Kingdom think.

A YouGov survey says the British prime minister's personal rating among voters has slumped to a new low.

Asked who would make the best prime minister 39 per cent of people polled said David Cameron, a rise of seven per cent on last month. 17 per cent opted for Brown, down two per cent from April.

A report in Telegraph says, the survey puts Labour on 23 points and the Conservatives on 47 - a Tory lead of 24 points.

The Conservatives have risen three points, it said, adding the Liberal Democrats are on 18 points.

Brown is already suffering from poor local election results and the loss of a safe Labour seat in a by-election in Crewe last week, the Telegraph report says.

The survey says three quarters of the people are not happy with the government and only 15 per cent are satisfied with Brown. That is the same figure that John Major polled during his darkest days as Conservative prime minister in the early 1990s.

Image: Gordon Brown; Photograph: SHAUN CURRY/AFP/Getty Images