One of the components of air is water in its gaseous or vapor state.
Water vapor makes up only a few percent of air.
There is a limit to how much water vapor air can hold. If that limit is exceeded, then condensation or rainfall occurs. That limit is a law of nature, which applies to all bodies of air,all over the world. The amount of water vapor thatair can hold depends on its temperature. Warm air can hold more watervapor than cold air.