As of 2:01 PM AST on May 13, 2026, all 4 cities in Guánica Municipio, PR in our database have a UV Index reading of Extreme. The city with the highest UV Index reading right now is Guánica, PR with a reading of 10.7.
Over the next 24 hours, the highest UV Index reading in Guánica Municipio, PR is expected to be 12.5 in Guánica between 12:00 PM - 1:00 PM AST tomorrow.