"It is logical to play this competition at the end of the year. We cannot have two competitions at the same time," said Blatter.
World Cup 2022: Pundits debate Qatar 2022 alternative dates
Last month Fifa set up a taskforce to look at alternative dates for the tournament through a consultation with medical experts, broadcasters, sponsors and influential European leagues.
"It will be November-December," said Blatter. "I don't know exactly the dates, but it could be from 10th to 10th whatever.
"In January and February, these are the Olympic Winter Games.
"It is out of the respect to the Olympic organisation - the Olympic family. Secondly, we have practically the same media, television and marketing partners."
Blatter, who was speaking after meeting the Emir of Qatar, Sheikh Tamim bin Hamad al-Thani, also ruled out any possibility that the Gulf state could co-host the 2022 World Cup with neighbouring countries.
Qatar has a hot desert climate with daytime temperatures usually peaking at 42C during June and July. It doesn't tend to get much cooler overnight as temperatures typically don't fall below 30C.
The climate during November and December is similar to that of a European summer, when the average daytime temperature is around 26C with the chance of a little rain at times.
Premier League chief executive Richard Scudamore insisted the tournament should go ahead in the summer, although Europe's leading clubs have said they are "open" to the possibility of a winter World Cup.
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