As of 4:21 AM AST on September 9, 2025, all 2 cities in San Lorenzo Municipio, PR in our database have a UV Index reading of 0, indicating no radiation from the sun.
Over the next 24 hours, the highest UV Index reading in San Lorenzo Municipio, PR is expected to be 11.2 in San Lorenzo between 1:00 PM - 2:00 PM AST today.