<P> Colloquially, room temperature is the range of air temperatures that most people prefer for indoor settings, which feel comfortable when wearing typical indoor clothing . As a medical definition, the range generally considered suitable for human occupancy is between 15 degrees Celsius (59 degrees Fahrenheit) and 25 ° C (77 ° F), though human comfort can extend beyond this range depending on humidity, air circulation and other factors . In certain fields, like science and engineering, and within a particular context, room temperature can mean different agreed - on ranges . </P> <P> The American Heritage Dictionary of the English Language identifies room temperature as around 20 to 22 ° C (68 to 72 ° F), and the Oxford English Dictionary claims that it is "conventionally taken as about 20 ° C (68 ° F)". </P> <P> Owing to variations in humidity and likely clothing, recommendations for summer and winter may vary; a suggested typical range for summer is 23 to 25.5 ° C (73 to 78 ° F), with that for winter being 20 to 23.5 ° C (68 to 74 ° F), although by other considerations the maximum should be below 24 ° C (75 ° F)--and to avoid sick building syndrome, below 22 ° C (72 ° F). </P> <P> The World Health Organisation's standard for comfortable warmth is 18 ° C (64 ° F) for normal, healthy adults who are appropriately dressed . For those with respiratory problems or allergies, they recommend no less than 16 ° C (61 ° F), and for the sick, disabled, very old or very young, a minimum of 20 ° C (68 ° F). </P>

What is a comfortable room temperature in the summer