FIFA could move tournament to avoid sweltering conditions.
Fifa have come under criticism for choosing to host the World Cup in a country where temperatures reach 50 degrees in the summer - but Blatter said that FIFA could change the timing of the tournament.
"For FIFA, if there's the will to change something for the international calendar for one year, it's possible to do so, because if there's a will, there's also a solution," Blatter told reporters.
"But for now, there are the pros and cons but it is premature to make any decisions on what may happen but all I am saying is that winter is not only January and February, winter is also the end of the year."
Since Qatar won the right to host the finals in December, Blatter has said that the 2022 tournament could be held in the winter time to avoid the summer heat in the desert state.
The idea has attracted plenty of criticism, as many leagues worldwide would have to adjust their entire calendar to accommodate a winter World Cup.
Blatter was speaking at the International Olympic Committee (IOC) headquarters on Tuesday.
The IOC is sensitive to a winter World Cup because it could hamper that year's winter Olympics. It has called on FIFA to discuss the matter with Olympic officials one it has decided on the dates of the tournament.
"It would be sensible once a decision is envisaged by FIFA to sit around a table to see it is not harmful to either of the two parties," IOC president Jacques Rogge said earlier this month.
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