As of 3:07 PM AST on November 4, 2025, all 2 cities in San Germán Municipio, PR in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is San Germán, PR with a reading of 4.5.
Over the next 24 hours, the highest UV Index reading in San Germán Municipio, PR is expected to be 8.8 in San Germán between 12:00 PM - 1:00 PM AST tomorrow.