As of 1:13 PM AST on August 5, 2026, all 2 cities in Cayey Municipio, PR in our database have a UV Index reading of Extreme. The city with the highest UV Index reading right now is G. L. García, PR with a reading of 11.
Over the next 24 hours, the highest UV Index reading in Cayey Municipio, PR is expected to be 11.1 in Cayey between 12:00 PM - 1:00 PM AST tomorrow.