As of 10:15 AM AST on September 18, 2025, all 5 cities in Hatillo Municipio, PR in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Hatillo, PR with a reading of 1.4.
Over the next 24 hours, the highest UV Index reading in Hatillo Municipio, PR is expected to be 8.7 in Hatillo between 1:00 PM - 2:00 PM AST today.