Contra Costa County, CA: Current UV Index and Hourly Forecast

As of 11:31 AM PST on December 8, 2024, all 50 cities in Contra Costa County, CA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is San Ramon, CA with a reading of 1.8.

Over the next 24 hours, the highest UV Index reading in Contra Costa County, CA is expected to be 2.2 in San Ramon between 12:00 PM - 1:00 PM PST today.

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UV Index Risk Levels
Range 0 - 23 - 56 - 78 - 1011+
Color
Risk LowModerateHighVery HighExtreme
UV Index in Contra Costa County, CA as of 11:31 AM PST, December 8, 2024

Current UV Index in Cities in Contra Costa County, CA

11:31 AM PST, December 8, 2024