The average (70°C or 158°F) is not as important as the wide range of temperatures. Mercury's nearness to the Sun, lack of atmosphere, and slow rotation combine to raise the daylight side temperature up to 430°C (806°F). The side of the planet facing away from the Sun becomes incredibly cold, as low as -173°C (-280°F).
The temperature near the poles is slightly cooler in the day and warmer at night, averaging -73°C, but this too varies from - 190°C to + 110°C.
Mercury has a high surface temperature and a low mass
Mercury is a metal element which is liquid at room temperature
Because of it's thick CO2 atmosphere and slow rotation, Venus maintains an average temperature of around 460 °C (860 °F) whether it is "day" or "night". :)
A barometer is a closed-system vacuum that allows the mercury to expand with changes in temperature and pressure.
The average temperature is 5400 ºF (3000ºC),
Mercury has an average surface temperature (67°) closest to the Earths average surface temperature (14°C). The temperature on Mercury varies a lot though - you could argue that Mars is closer in temperature.
Mercury's average temperature in Fahrenheit is 800 degrees.
The average surface temperature on Mercury is around 700 K (426.85°C). However, temperatures can vary greatly depending on the location and time of day due to Mercury's lack of atmosphere to regulate heat.
The average temperature on Mercury can vary significantly, ranging from about -290°F on its dark side to over 800°F on its sunlit side. However, the overall average temperature on Mercury is approximately 332°F.
It's smooth and shiny, and has a convex meniscus.
Mercury has no real atmosphere and the temperature on the surface is from 80,000 to 700,000 degrees.
Venus is hotter than Mercury, with an average surface temperature of about 467°C compared to Mercury's average surface temperature of about 167°C. This is due to Venus' thick atmosphere of carbon dioxide, which creates a greenhouse effect that traps heat and raises temperatures to extreme levels.
At its hottest point, temperatures on Mercury can rise as high as 700 Kelvin (430 °C) for the regions directly facing the Sun. And its colder side can get down to 110 Kelvin (-163 °C). But the absolute coldest parts of Mercury are the shadowed parts of the planet's polar craters. These are regions that never see sunlight, and the Mercury surface temperature can get as low as 90 Kelvin (-183 °C).The Mercury average surface temperature, when you even it all out, is 452 Kelvin (179 °C).
Mercury
The average temperature of the planet Mercury is said to be 350 degrees.
mercury or venus
You might expect a planet to be hotter if it's nearer the Sun. This is true apart from Venus, which is the exception. Venus has a higher average surface temperature than Mercury. We believe this is because of the "greenhouse effect" of the atmosphere of Venus.