As of 9:47 AM AST on October 4, 2026, all 5 cities in Guayama Municipio, PR in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Guayama, PR with a reading of 3.2.
Over the next 24 hours, the highest UV Index reading in Guayama Municipio, PR is expected to be 10.8 in Guayama between 12:00 PM - 1:00 PM AST today.