In the spring season in Longchuan, China, temperatures rise gradually, with March averaging around 16 degrees Celsius. April brings warmer days, sometimes reaching up to 23 degrees Celsius, while nighttime temperatures can still dip to around 13 degrees Celsius. May is generally mild, with temperatures ranging from 17 to 24 degrees Celsius during the day and dipping to around 14 degrees Celsius at night. Summer is hot and humid, with June temperatures often soaring above 28 degrees Celsius during the day and rarely dropping below 19 degrees Celsius at night. Autumn sees a return to more moderate conditions, with September temperatures averaging around 22 degrees Celsius during the day and 16 degrees Celsius at night.