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

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As of 2:10 PM PST on February 1, 2026, all 28 cities in San Joaquin County, CA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Manteca, CA with a reading of 1.9.

Over the next 24 hours, the highest UV Index reading in San Joaquin County, CA is expected to be 2.9 in Manteca between 12:00 PM - 1:00 PM PST tomorrow.

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Current UV Index in Cities in San Joaquin County, CA

• Acampo - 1.6
• August - 1.8
• Collierville - 1.6
• Country Club - 1.8
• Dogtown - 1.6
• Escalon - 1.9
• Farmington - 1.9
• French Camp - 1.8
• Garden Acres - 1.8
• Kennedy - 1.8
• Lathrop - 1.9
• Lincoln Village - 1.8
• Linden - 1.9
• Lockeford - 1.6
• Lodi - 1.8
• Manteca - 1.9
• Morada - 1.8
• Mountain House - 1.8
• Peters - 1.9
• Ripon - 1.9
• Stockton - 1.8
• Taft Mosswood - 1.8
• Terminous - 1.7
• Thornton - 1.6
• Tracy - 1.8
• Victor - 1.6
• Waterloo - 1.8
• Woodbridge - 1.6