the saturation temperature of the moisture present in the sample of air, it can also be defined as the temperature at which the vapour changes into liquid (condensation). usually the level at which water vapor changes into liquid marks the base of the cloud in the atmosphere hence called condensation level. so the temperature value that allows this process (condensation) to take place is called the 'dew point temperature'. a simplified definition is the temperature at which the water vapour turns into "dew" (chamunoda zambuko 2012).