Dwelling in cities and city development together with quick increase of
population and development of industrial activities with unplanned
consumption of fossil fuel have intensively increased pollutions with
consequences which will cause different diseases in short period, will
lead to some climatic oscillations and its environmental effects such
as the change of desirable periods in view of comfort climate in long
period. The objective point of view of this research was to study the
climate in Shiraz and its effect on comfort conditions for human
physiology. In this research, using 55-year climatic data (1952-2006),
the relative humidity and temperature through the application Guni
comfort climatic model, the desirable months for the comfort of human
physiology have been determined in the five 11-year periods and the
linear process of these changes have been estimated for the next 11
years. The results of this research show that the temperature trend in
Shiraz station is increasing and most months have heating process in a
way that it is expected that in the coming future, the cold months will
have more favoring conditions for physiological comfort of residents
and correspondingly in the warm months, heating tension will have
remarkable increase
