UV Index Today in Marin County, California (CA)

Tuesday, April 7, 2026 - 1:51 AM PDT (GMT-7)

The average maximum UV Index today across 29 locations in Marin County, California (CA), is 7.5. The highest projected maximum is 7.5 in San Francisco at 1:00 PM PDT, while the lowest projected maximum is 7.3 in Bodega Bay at 1:00 PM PDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 7.4. The highest projected maximum is 7.4 in San Francisco at 1:00 PM PDT, and the lowest projected maximum is 7.3 in Bodega Bay at 1:00 PM PDT.

29 Places in Marin County, California (CA)

Maximum UV Index Today
  • San Francisco - 7.5