Here's why:

* Higher Altitude: The South Pole is located at a higher altitude than the North Pole, meaning it's farther from the Earth's surface and thus exposed to colder temperatures.

* Ice Sheet Thickness: The Antarctic ice sheet is significantly thicker and larger than the Arctic ice sheet, contributing to lower temperatures.

* Continental Landmass: Antarctica is a continent, while the North Pole is situated in the Arctic Ocean. The landmass of Antarctica helps to retain cold air and prevents it from being moderated by the ocean.

Record Low Temperatures:

* South Pole: -93.2 °C (-135.8 °F)

* North Pole: -68 °C (-90.4 °F)

While the South Pole holds the record for the lowest temperature ever recorded on Earth, it's important to note that temperatures at both poles fluctuate significantly throughout the year.