As of 8:56 AM AST on January 8, 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 0.6.
Over the next 24 hours, the highest UV Index reading in Arroyo Municipio, PR is expected to be 7.8 in Arroyo between 12:00 PM - 1:00 PM AST today.