UV Index Today in San Diego County, California (CA)
Sunday, September 20, 2026 -9:23 AM PDT (GMT-7)
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The average maximum UV Index today across 58 locations in San Diego County, California (CA), is 7.9. The highest projected maximum is 8.8 in Campo at 1:00 PM PDT, while the lowest projected maximum is 7.4 in Oceanside at 1:00 PM PDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 8.2. The highest projected maximum is 8.8 in Campo at 1:00 PM PDT, and the lowest projected maximum is 7.9 in Camp Pendleton South at 1:00 PM PDT.
58 Places in San Diego County, California (CA)
Maximum UV Index Today