Speaking at the first ever joint press conference involving all four Home Nations managers, Hodgson warned of the "enormous logistical problems" teams and supporters could face at the 2014 tournament.
The England boss welcomed the added "spice" of a World Cup held in Brazil, thanks to the country's unparalleled standing in the global game and obsession with it.
But although he felt England fans would relish the "party atmosphere" for which the South American country is also renowned, he painted a bleak picture of the wild variation in climate there and the potential problems with travel and accommodation for visiting teams and spectators.
"They've got a major logistical problem on their hands," said Hodgson at Friday's 'Vauxhall Road to Brazil 2014' media conference.
"It's a vast country. I don't think we realise quite how vast.
"There's going to be enormous difficulties for the teams that qualify, according to where they're drawn.
"You've got to remember, it's the Brazilian winter, so it's not going to be particularly much of a sunbathing time unless you happen to find yourself in Rio.
"If you're down in Porto Alegre, you'll going to need fur coat because it snows and temperatures reach single figures, certainly, and maybe even sometimes lower.
"And if you find yourself in Manaus then you won't be sunbathing but you will find 45, 50 degrees of heat and plenty of mosquitos as well being near the Amazon jungle."
He added: "There's no doubt that for the team that gets a game in Porto Alegre and one game in Manaus, they will have problems because the temperature differences are quite enormous."
Hodgson revealed he had scouted potential bases in Rio, Sao Paulo and Belo Horizonte but was worried about the kind of facilities that could await teams.
"When you're talking about Brazil, you're talking about Rio, and I don't think all 32 teams can be in Rio," he said.
"The major problem at the moment is that the local organising committee and the management of FIFA haven't yet come to a definite decision which training ground will be paired with which hotel.
"You don't really want to be necessarily choosing a hotel with a training venue you don't like and vice-versa.
"The hotels will be, not a problem, but they'll be challenge.
"The type of hotels that you're likely to stay in won't be the sort of hotels that national teams like to stay in, where you can essentially commandeer a hotel and fashion it to your requirements.
"It'll be very difficult to get the type of privacy that national teams prefer, if they can get it, when they go to major tournaments."
Hodgson's concerns appear legitimate ones, especially ahead of a World Cup that will once again see teams forced to travel right across such a vast country during the group phase rather than stay in clusters in one area.
But the England's manager's outspoken honesty may not go down well in Brazil and FA communications director Adrian Bevington was quick to limit any damage.
Bevington, who is also managing director of Club England, has visited the country several times to make plans for England's potential stay there.
Insisting the situation was far rosier than Hodgson outlined and certainly no worse than ahead of the 2010 World Cup in South Africa, he said: "There will be logistical challenges as there are at any tournament - they are not going to be problematic.
"We are confident FIFA and the organisers will put on a spectacular tournament.
"We have had no concerns over what will be delivered.
"It will be a fantastic World Cup and we have every confidence in that."
And despite his concerns, Hodgson was enthusiastic about the tournament, revealing he dreamt of leading a team out in Brazil and insisting he would put up with whatever problems England faced provided they qualified.
He added: "People are going to be a lot keener to go to Brazil than perhaps some other countries that are occasionally chosen to be World Cup venues."