What is the temperature of the pools at Alton Towers Waterpark? All pools: 29 Degrees Outside: 28-29 Degrees Hot tubs:34-35 Degrees Related articles How deep is the Waterpark's deepest pool? What is included with my Waterpark Admission Ticket? When is the Waterpark open? Do you currently offer a Parent and Toddler Ticket for the Alton Towers Waterpark? Are the lockers available?