UV Index Today in Santa Clara County, California (CA)
Saturday, August 15, 2026 -12:26 AM PDT (GMT-7)
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The average maximum UV Index today across 30 locations in Santa Clara County, California (CA), is 8.8. The highest projected maximum is 8.9 in San Jose at 1:00 PM PDT, while the lowest projected maximum is 8.6 in Fremont at 1:00 PM PDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 9. The highest projected maximum is 9.3 in East Foothills at 1:00 PM PDT, and the lowest projected maximum is 8.9 in Fremont at 1:00 PM PDT.
30 Places in Santa Clara County, California (CA)
Maximum UV Index Today