UV Index Today in San Diego County, California (CA)

Friday, May 22, 2026 -11:40 AMPDT (GMT-7)

The average maximum UV Index today across 58 locations in San Diego County, California (CA), is 9.3. The highest projected maximum is 10.1 in Campo at 1:00 PM PDT, while the lowest projected maximum is 8.9 in Camp Pendleton South 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 9.7 in Campo at 1:00 PM PDT, and the lowest projected maximum is 8.9 in Carlsbad at 1:00 PM PDT.

58 Places in San Diego County, California (CA)

Maximum UV Index Today
  • Chula Vista - 9.3
  • San Diego - 9.3