As of 11:16 AM AST on May 13, 2026, all 3 cities in Arroyo Municipio, PR in our database have a UV Index reading of Extreme. The city with the highest UV Index reading right now is Arroyo, PR with a reading of 11.
Over the next 24 hours, the highest UV Index reading in Arroyo Municipio, PR is expected to be 12.7 in Arroyo between 12:00 PM - 1:00 PM AST today.