Macbook needed some cleaning

Your Macbook or any other laptop might need some cleaning too.
A laptop with dust in it cools a lot worse than when you clean it out.

Closeup of a dirty fan.
Closeup of a cleaned fan.
After cleaning everything, were ready to go again.

Only cleaning the dust out lowered the average heat pipe temperature about 4 degrees Celsius. Which is not a great but at least an improvement.