UV Index Today in Riverside County, California (CA)
Friday, May 22, 2026 -11:39 AMPDT (GMT-7)
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The average maximum UV Index today across 89 locations in Riverside County, California (CA), is 9.1. The highest projected maximum is 9.7 in Anza at 1:00 PM PDT, while the lowest projected maximum is 8.9 in Riverside 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 9.6 in Idyllwild-Pine Cove at 1:00 PM PDT, and the lowest projected maximum is 8.7 in Riverside at 1:00 PM PDT.
89 Places in Riverside County, California (CA)
Maximum UV Index Today