Similarly, you may ask, how long are the winters in Game of Thrones?
Winter in Westeros, like the other seasons, varies in length with every occurrence. It could last for a few months (short winters), and up to a few years (long winters). The legendary period called the Long Night, when the Others first arrived supposedly happened during a winter that lasted a whole generation.
Additionally, how many years is each season of Game of Thrones? In episode seven, "The Bear and the Maiden Fair," she reveals the War of the Five Kings has been going on for two years. Since the war officially begins at the end of season one, the show appears to be covering roughly a year per season at this point.
Also question is, why are the summers and winters so long in Game of Thrones?
They discovered that the fictional world's long winters and long summers could be explained by a “tumbling” of the tilt of the spinning axis of the planet as it orbits the sun because it forces one Hemisphere to always tilt toward the Sun.
Why is winter coming in Game of Thrones?
"Winter Is Coming" is the motto of House Stark, one of the Great Houses of Westeros. The meaning behind these words is one of warning and constant vigilance. The Starks, being the lords of the North, strive to always be prepared for the coming of winter, which hits their lands the hardest.