At what temperature can students have a holiday?

This, the law has no clear provisions in this regard! At present, there are only local regulations! For example, the "Measures for Labor Protection in Hot Weather in Chongqing" stipulates that when the daily maximum temperature reaches above 37℃, the unit shall rest in shifts according to the working conditions to shorten the continuous working hours of the workers, but the workers shall not be arranged to work overtime; When the daily maximum temperature reaches above 39℃, the working time shall not exceed 5 hours a day, and work shall be suspended during the high temperature period from1to 16; The highest temperature is above 40℃, so you can rest at home and not go to work.