What is the hottest temperature recorded on Mars?
The extreme surface temperatures on Mars possibly range between -140 Celsius, at the South Pole and +40 Celsius near Mars’s tropic of Capricorn, around Spirit’s latitude, because Mars’s closest approach to the sun is during the Southern Hemisphere’s late spring and coincides with Spirit’s location crossing the equator and having near maximum daylight hours. The average temperature on Mars is around -50 Celsius.