How To Prevent Digestive Issues In Summer? Summer Means More Digestive Issues For Majority Of People After facing cold winter chills, now it’s the time to face the season of summers with intense heat rays coming from the sun. Usually the summer season starts from April and lasts till the end of September. Most days, the temperature rises up to 50° C which not only warms the earth but also increases the temperature of the body to a certain extent.