As of 7:26 AM AST on July 30, 2025, all 5 cities in Río Grande Municipio, PR in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Río Grande, PR with a reading of 0.5.
Over the next 24 hours, the highest UV Index reading in Río Grande Municipio, PR is expected to be 12.1 in La Dolores between 12:00 PM - 1:00 PM AST today.