Uranus is the coldest planet in our solar system.
The Chilly Champion: Uranus
While Neptune experiences frigid temperatures, Uranus takes the crown for the coldest planet. Measurements have recorded a bone-chilling -224℃ (-371℉) on Uranus, significantly colder than Neptune's average of -214℃ (-353℉). ^1 This makes Uranus the coldest planet we know of.
This extreme cold is likely due to a combination of factors including its distance from the Sun and unique atmospheric composition.
