It's important to note that this is just an average. Temperatures can vary significantly depending on location and time of day. Neptune is a gas giant, meaning it doesn't have a solid surface, and the temperature decreases as you go deeper into its atmosphere.
However, it's worth mentioning that while Neptune is the coldest planet in *our* solar system, there are likely much colder exoplanets out there, some of which may even be considered "ice giants."
