As of 3:00 PM AST on May 19, 2025, all 5 cities in Río Grande Municipio, PR in our database have a UV Index reading of High. The city with the highest UV Index reading right now is La Dolores, PR with a reading of 6.8.
Over the next 24 hours, the highest UV Index reading in Río Grande Municipio, PR is expected to be 11.8 in Río Grande between 12:00 PM - 1:00 PM AST tomorrow.