Which is the hottest planet in our solar system?

Venus is the hottest planet in our solar system primarily due to its thick atmosphere composed mainly of carbon dioxide, along with clouds of sulfuric acid. This atmospheric composition creates a strong greenhouse effect, trapping heat very effectively. Although Mercury is the closest planet to the Sun and experiences extremely high temperatures during the day, it lacks a significant atmosphere to retain heat during the night. In contrast, Venus maintains consistently high temperatures, averaging around 467 degrees Celsius (872 degrees Fahrenheit), regardless of the time of day or night. This unique combination of proximity to the Sun and a dense atmosphere leads to Venus being the hottest planet in our solar system.