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Which planet has the strongest temperature contrast between day and night?
SpacePlanets
Quick Answer
Mercury has one of the biggest day-night temperature swings in the Solar System, with daytime temperatures near 430°C and nighttime temperatures dropping to about -180°C. Its almost airless surface cannot hold heat.
The Full Story
Mercury experiences dramatic temperature extremes because it has very little atmosphere. In sunlight, its surface can reach around 430°C, while at night it can plunge to about -180°C. Without a substantial atmosphere to trap and redistribute heat, the planet cools very quickly after sunset. This makes Mercury one of the most thermally extreme worlds in the Solar System.
Key Facts
1.Daytime: about 430°C
2.Nighttime: about -180°C
3.Mercury has almost no atmosphere
YouTube Angle
Suggested video title for this topic:
"One planet goes from oven-hot to freezing-cold every single day."