As of 8:24 AM AST on March 17, 2026, all 2 cities in Cayey Municipio, PR in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Cayey, PR with a reading of 1.3.
Over the next 24 hours, the highest UV Index reading in Cayey Municipio, PR is expected to be 12 in Cayey between 12:00 PM - 1:00 PM AST today.