UV Index Today in Santa Cruz County, California (CA)

Sunday, September 20, 2026 -9:23 AM PDT (GMT-7)

The average maximum UV Index today across 28 locations in Santa Cruz County, California (CA), is 6.2. The highest projected maximum is 6.5 in Watsonville at 1:00 PM PDT, while the lowest projected maximum is 5.8 in Boulder Creek at 2:00 PM PDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 6.6. The highest projected maximum is 6.7 in Santa Cruz at 1:00 PM PDT, and the lowest projected maximum is 6.5 in Watsonville at 1:00 PM PDT.

28 Places in Santa Cruz County, California (CA)

Maximum UV Index Today