Puerto Rico (PR): Current UV Index and Hourly Forecast

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As of 1:40 PM AST on September 5, 2026, out of 281 cities in Puerto Rico in our database, 149 cities (53%) have a UV Index reading of Very High, while 132 cities (47%) have a UV Index reading of Extreme. The city with the highest UV Index reading right now is Guayama, PR with a reading of 11.3.

Over the next 24 hours, the highest UV Index reading in Puerto Rico is expected to be 12 in Fajardo between 12:00 PM - 1:00 PM AST tomorrow.

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Current UV Index in Major Cities in Puerto Rico (PR)

1:40 PM AST, September 5, 2026