Ford 2010 explorer 4.0 overheating when not accelerating

My ford 2010 explorer overheats in traffic. Once I park and allow it to cool down, the temperature gauge goes back to normal. It will be okay for another few days and the same problem reoccurs again.
Please what is the problem

first thing you want to check is your coolant level. while the engine is cold, like first thing in the morning, open the radiator cap and check how much coolant is in the radiator. low coolant can cause similar symptoms as you are experiencing.

a partially closed thermostat or a plugged up radiator could also exhibit similar symptoms. When the engine is idling there is very low circulation from the water pump. If there are any restrictions like the thermostat or the radiator Or low coolant it will compound the loss of heat dissipation. Once you get moving and rev up the motor, you increase the flow from the water pump and also to air flow through the radiator (as the car moves air is forced through the radiator)

anyways, that's where I would start looking.