UV Index Today in Marin County, California (CA)
Saturday, August 8, 2026 -9:21 AM PDT (GMT-7)
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The average maximum UV Index today across 29 locations in Marin County, California (CA), is 8.9. The highest projected maximum is 9.3 in Petaluma Center at 1:00 PM PDT, while the lowest projected maximum is 8.4 in Woodacre at 1:00 PM PDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 9.1. The highest projected maximum is 9.4 in Petaluma Center at 1:00 PM PDT, and the lowest projected maximum is 8.5 in Bodega Bay at 1:00 PM PDT.
29 Places in Marin County, California (CA)
Maximum UV Index Today