Sonoma County, CA: Current UV Index and Hourly Forecast

As of 10:55 AM PDT on September 11, 2025, out of 38 cities in Sonoma County, CA in our database, 37 cities (97%) have a UV Index reading of Low, while 1 city (3%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Kenwood, CA with a reading of 2.5.

Over the next 24 hours, the highest UV Index reading in Sonoma County, CA is expected to be 6.5 in Sonoma between 1:00 PM - 2:00 PM PDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Sonoma County, CA as of 10:55 AM PDT, September 11, 2025

Current UV Index in Cities in Sonoma County, CA

10:55 AM PDT, September 11, 2025