The San Juan Daily Star
Heat indexes in low 100s a day after record high temp
By The Star Staff
The National Weather Service (NWS) reported heat indexes between 102 and 107 degrees between 11 a.m. and 4 p.m. on Sunday, the day after the island registered a record high temperature.
On Saturday, the temperature reached a high of 94 degrees, one degree higher than the previous record set on June 4, 1993.
Heat index measures a combination of temperature and humidity -- what the temperature feels like to the human body when relative humidity is combined with the air temperature.
The NWS issued several recommendations to beat the heat. For example, limit outdoor activities, stay hydrated, use sunscreen, and avoid leaving minors and pets unattended inside vehicles.