As of 1:56 PM PDT on September 15, 2025, out of 38 cities in Sonoma County, CA in our database, 31 cities (82%) have a UV Index reading of Very High, while 7 cities (18%) have a UV Index reading of High. The city with the highest UV Index reading right now is Kenwood, CA with a reading of 7.9.
Over the next 24 hours, the highest UV Index reading in Sonoma County, CA is expected to be 7.9 in Kenwood between 1:00 PM - 2:00 PM PDT today.
Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
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Color | |||||
Risk | Low | Moderate | High | Very High | Extreme |