Mariposa County, CA: Current UV Index and Hourly Forecast

As of 12:43 PM PDT on April 1, 2025, out of 17 cities in Mariposa County, CA in our database, 13 cities (76%) have a UV Index reading of Low, while 4 cities (24%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Yosemite Valley, CA with a reading of 5.2.

Over the next 24 hours, the highest UV Index reading in Mariposa County, CA is expected to be 5.4 in Yosemite Valley between 11:00 AM - 12:00 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 12:43 PM PDT, April 1, 2025

Current UV Index in Cities in Mariposa County, CA

12:43 PM PDT, April 1, 2025