As of 6:32 PM AST on August 1, 2026, all 3 cities in Arroyo Municipio, PR in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Arroyo, PR with a reading of 0.3.
Over the next 24 hours, the highest UV Index reading in Arroyo Municipio, PR is expected to be 9.1 in Arroyo between 1:00 PM - 2:00 PM AST tomorrow.