What is the temperature range on mercury?

The day side of the planet reaches temperatures of up to 800 degrees Fahrenheit (427 degrees Celsius). In contrast, the chilly night side can get as cold as minus 290 F (minus 180 C). The planet has an average temperature of 332 F (167 C). read more

But on Mercury, the planet has essentially no tilt, which means that the hemispheres experience no significant difference in temperature from one another. That allows Mercury, the closest planet to the sun, to hang onto ice at its surface. read more

That honor goes to Venus, which experiences an average surface temperature of 750 K (477 °C; 890 °F). Not only that, but Mercury is also cold enough in some regions to maintain water in ice form. Overall, Mercury experiences considerable variations in temperatures, ranging from the extremely hot to the extremely cold. read more

Mercury’s temperature variations are also attributed to its orbital eccentricity of 0.2056, which is the most extreme of any planet in the Solar System. Essentially, its distance from the Sun ranges from 46 million km (29 million mi) at its closest (perihelion) to 70 million km (43 million mi) at its farthest (aphelion). read more