As of 11:24 AM AST on December 14, 2025, all 3 cities in Arroyo Municipio, PR in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Arroyo, PR with a reading of 6.
Over the next 24 hours, the highest UV Index reading in Arroyo Municipio, PR is expected to be 7.1 in Arroyo between 1:00 PM - 2:00 PM AST today.