Mariposa County, CA: Current UV Index and Hourly Forecast

As of 10:34 PM PDT on June 4, 2025, all 17 cities in Mariposa County, CA in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Mariposa County, CA is expected to be 9.9 in El Portal 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 Mariposa County, CA as of 10:34 PM PDT, June 4, 2025

Current UV Index in Cities in Mariposa County, CA

10:34 PM PDT, June 4, 2025