The hottest planet in our solar system is Venus. To find the answer to this question, we can refer to scientific knowledge and data. Venus has an average surface temperature of about 462 degrees Celsius (864 degrees Fahrenheit), making it the hottest planet in our solar system. This extreme heat is due to several factors, including Venus' thick atmosphere composed mostly of carbon dioxide, which traps heat from the Sun and creates a runaway greenhouse effect. The combination of its thick atmosphere and proximity to the Sun makes Venus significantly hotter than any other planet in our solar system.
