California (CA): Current UV Index and Hourly Forecast

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  • California

As of 6:21 PM PDT on August 21, 2025, all 1591 cities in California in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Eureka, CA with a reading of 1.1.

Over the next 24 hours, the highest UV Index reading in California is expected to be 10.7 in Campo 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 California as of 6:21 PM PDT, August 21, 2025

Counties in California (CA)

Current UV Index in Major Cities in California (CA)

6:21 PM PDT, August 21, 2025