http://www.airconservicesingapore.net/ The average temperature and humidity in Singapore not only make air cons a vital necessity but also makes this appliance a requirement for comfortable living. More often than not, ambient room temperature and relative humidity has over the years has been recorded to be between 22 and 35 degrees Celsius for temperature and 79% in the morning and 73% in the afternoon for humidity levels. Typically, these conditions are not quite comfortable to live in nor are they comfortable to work in. In this regard, having an air con system in your house or in working places has become a part of life in Singapore. There are few places if any that do not have installed air conditioners.