Marin County, CA: Current UV Index and Hourly Forecast

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As of 4:31 AM PST on December 10, 2025, all 31 cities in Marin County, CA in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Marin County, CA is expected to be 2.2 in San Rafael between 12:00 PM - 1:00 PM PST today.

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Current UV Index in Cities in Marin County, CA

• Alto - 0
• Belvedere - 0
• Black Point-Green Point - 0
• Bolinas - 0
• Corte Madera - 0
• Dillon Beach - 0
• Fairfax - 0
• Inverness - 0
• Kentfield - 0
• Lagunitas-Forest Knolls - 0
• Larkspur - 0
• Lucas Valley-Marinwood - 0
• Marin City - 0
• Mill Valley - 0
• Muir Beach - 0
• Nicasio - 0
• Novato - 0
• Point Reyes Station - 0
• Ross - 0
• San Anselmo - 0
• San Geronimo - 0
• San Rafael - 0
• Santa Venetia - 0
• Sausalito - 0
• Sleepy Hollow - 0
• Stinson Beach - 0
• Strawberry - 0
• Tamalpais-Homestead Valley - 0
• Tiburon - 0
• Tomales - 0
• Woodacre - 0