San Joaquin County, CA: Current UV Index and Hourly Forecast

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As of 5:10 PM PDT on June 9, 2026, all 28 cities in San Joaquin County, CA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Stockton, CA with a reading of 3.2.

Over the next 24 hours, the highest UV Index reading in San Joaquin County, CA is expected to be 10 in Tracy between 1:00 PM - 2:00 PM PDT tomorrow.

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Current UV Index in Cities in San Joaquin County, CA

• Acampo - 3.2
• August - 3.2
• Collierville - 3.2
• Country Club - 3.2
• Dogtown - 3.2
• Escalon - 3.2
• Farmington - 3.2
• French Camp - 3.2
• Garden Acres - 3.2
• Kennedy - 3.2
• Lathrop - 3.2
• Lincoln Village - 3.2
• Linden - 3.2
• Lockeford - 3.2
• Lodi - 3.2
• Manteca - 3.2
• Morada - 3.2
• Mountain House - 3.2
• Peters - 3.2
• Ripon - 3.2
• Stockton - 3.2
• Taft Mosswood - 3.2
• Terminous - 3.2
• Thornton - 3.2
• Tracy - 3.2
• Victor - 3.2
• Waterloo - 3.2
• Woodbridge - 3.2