Alameda County, CA: Current UV Index and Hourly Forecast

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As of 7:18 PM PDT on May 10, 2026, all 20 cities in Alameda County, CA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Oakland, CA with a reading of 0.4.

Over the next 24 hours, the highest UV Index reading in Alameda County, CA is expected to be 9.1 in Livermore between 1:00 PM - 2:00 PM PDT tomorrow.

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Current UV Index in Cities in Alameda County, CA

• Alameda - 0.4
• Albany - 0.4
• Ashland - 0.4
• Berkeley - 0.4
• Castro Valley - 0.4
• Cherryland - 0.4
• Dublin - 0.4
• Emeryville - 0.4
• Fairview - 0.4
• Fremont - 0.3
• Hayward - 0.4
• Livermore - 0.3
• Newark - 0.3
• Oakland - 0.4
• Piedmont - 0.4
• Pleasanton - 0.4
• San Leandro - 0.4
• San Lorenzo - 0.4
• Sunol - 0.3
• Union City - 0.3