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

As of 2:30 PM PDT on May 14, 2025, out of 28 cities in San Joaquin County, CA in our database, 27 cities (96%) have a UV Index reading of Very High, while 1 city (4%) have a UV Index reading of High. The city with the highest UV Index reading right now is Tracy, CA with a reading of 7.8.

Over the next 24 hours, the highest UV Index reading in San Joaquin County, CA is expected to be 8.6 in Tracy between 1:00 PM - 2:00 PM PDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in San Joaquin County, CA as of 2:30 PM PDT, May 14, 2025

Current UV Index in Cities in San Joaquin County, CA

2:30 PM PDT, May 14, 2025