Air Carrier Captain reported the aircraft began hydroplaning on Runway 5R at MMMX during heavy rain. Captain suggests some type of notation on the airport charts warning that 5R is not grooved and is slick when wet and for Tower to advise aircraft regarding the runway conditions sooner during the final approach.

Narrative

Our operational notes for MMMX do not adequately describe the risk associated with landing on Runway 05R during heavy rain. This runway should be cautioned as 'Slippery When Wet' due to it being ungrooved with excessive rubber deposits present on the runway. Runway Condition Code 2 or 3 should be used in the landing app when heavy rain is present. After landing on 05R during heavy rain; the airplane felt like it was hydroplaning for several thousand feet with full reverse thrust providing the only ability to slow the aircraft. Max auto braking and then max manual braking provided significantly reduced ability to slow the aircraft. While runway conditions change; the enroute field report showed a RCC 6/6/6 which was completely inaccurate. These should be updated immediately as runway conditions change.Also MMMX Tower has a tendency to clear an aircraft to land very late (sometimes as late as 2-3 hundred feet above the airport). The Tower warning for the slippery runway conditions usually accompanies this late landing clearance providing minimal time for decision making on whether the runway condition is safe to land. Ungrooved runway; excessive rubber deposits present. Insufficient warning of the risk in the airport pages. Add a CAUTION statement on airport page; which states Runways 05L/05R Slippery When Wet. Both are ungrooved and contain excessive rubber deposits. Runway Condition Code 2 or 3 should be used in the landing app depending on the amount of rain present.'"