Sonoma County, CA: Current UV Index and Hourly Forecast

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As of 11:09 AM PDT on October 24, 2026, out of 38 cities in Sonoma County, CA in our database, 37 cities (97%) have a UV Index reading of Moderate, while 1 city (3%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Kenwood, CA with a reading of 2.6.

Over the next 24 hours, the highest UV Index reading in Sonoma County, CA is expected to be 4.3 in Petaluma between 1:00 PM - 2:00 PM PDT today.

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Current UV Index in Cities in Sonoma County, CA

• Bloomfield - 2.5
• Bodega - 2.5
• Bodega Bay - 2.5
• Boyes Hot Springs - 2.5
• Carmet - 2.5
• Cazadero - 2.5
• Cloverdale - 2.5
• Cotati - 2.5
• El Verano - 2.5
• Eldridge - 2.5
• Fetters Hot Springs-Agua Caliente - 2.5
• Forestville - 2.5
• Fulton - 2.5
• Geyserville - 2.5
• Glen Ellen - 2.5
• Graton - 2.5
• Guerneville - 2.5
• Healdsburg - 2.5
• Jenner - 2.5
• Kenwood - 2.6
• Larkfield-Wikiup - 2.5
• Monte Rio - 2.5
• Occidental - 2.5
• Penngrove - 2.5
• Petaluma - 2.5
• Petaluma Center - 2.5
• Rohnert Park - 2.5
• Salmon Creek - 2.5
• Santa Rosa - 2.5
• Sea Ranch - 2.4
• Sebastopol - 2.5
• Sereno del Mar - 2.5
• Sonoma - 2.5
• Sonoma State University - 2.5
• Temelec - 2.5
• Timber Cove - 2.5
• Valley Ford - 2.5
• Windsor - 2.5