Orange County, CA: Current UV Index and Hourly Forecast

As of 4:07 PM PDT on July 5, 2025, out of 45 cities in Orange County, CA in our database, 24 cities (53%) have a UV Index reading of Moderate, while 21 cities (47%) have a UV Index reading of High. The city with the highest UV Index reading right now is Rancho Santa Margarita, CA with a reading of 5.7.

Over the next 24 hours, the highest UV Index reading in Orange County, CA is expected to be 11.5 in Rancho Santa Margarita between 1:00 PM - 2:00 PM PDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Orange County, CA as of 4:07 PM PDT, July 5, 2025

Current UV Index in Cities in Orange County, CA

4:07 PM PDT, July 5, 2025