Alameda County, CA: Current UV Index and Hourly Forecast

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As of 10:52 PM PST on December 1, 2025, all 20 cities in Alameda 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 Alameda County, CA is expected to be 2 in Fremont between 12:00 PM - 1:00 PM PST tomorrow.

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Current UV Index in Cities in Alameda County, CA

• Alameda - 0
• Albany - 0
• Ashland - 0
• Berkeley - 0
• Castro Valley - 0
• Cherryland - 0
• Dublin - 0
• Emeryville - 0
• Fairview - 0
• Fremont - 0
• Hayward - 0
• Livermore - 0
• Newark - 0
• Oakland - 0
• Piedmont - 0
• Pleasanton - 0
• San Leandro - 0
• San Lorenzo - 0
• Sunol - 0
• Union City - 0