Marin County, CA: Current UV Index and Hourly Forecast

As of 2:22 PM PDT on June 5, 2025, all 31 cities in Marin County, CA in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is San Rafael, CA with a reading of 8.3.

Over the next 24 hours, the highest UV Index reading in Marin County, CA is expected to be 8.4 in San Rafael between 1:00 PM - 2:00 PM PDT tomorrow.

Search Cities in Marin County, CA

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Marin County, CA as of 2:22 PM PDT, June 5, 2025

Current UV Index in Cities in Marin County, CA

2:22 PM PDT, June 5, 2025