UV Index Today in California (CA)
Wednesday, July 15, 2026 -9:13 AM PDT (GMT-7)
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The average maximum UV Index today across 1,212 locations in California (CA), is 10.5. The highest projected maximum is 12.4 in Glendora at 1:00 PM PDT, while the lowest projected maximum is 7.3 in Fort Bragg at 1:00 PM PDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 10.6. The highest projected maximum is 12.5 in Big Bear Lake at 1:00 PM PDT, and the lowest projected maximum is 7.7 in Fort Bragg at 1:00 PM PDT.
58 Counties in California (CA)
Average Maximum UV Index Today
- Alameda County - 9.9
- Contra Costa County - 9.9
- Fresno County - 10.2
- Kern County - 11
- Los Angeles County - 11.3
- Marin County - 9.8
- Merced County - 10
- Monterey County - 10
- Orange County - 11.3
- Placer County - 10.1
- Riverside County - 11.7
- Sacramento County - 9.7
- San Bernardino County - 11.7
- San Diego County - 11.7
- San Francisco County - 9.8
- San Joaquin County - 9.8
- San Luis Obispo County - 10.3
- San Mateo County - 10
- Santa Barbara County - 10.7
- Santa Clara County - 10.1
- Santa Cruz County - 9.9
- Solano County - 9.8
- Sonoma County - 9.7
- Stanislaus County - 10
- Tulare County - 10.4
- Ventura County - 10.9
1212 Places in California (CA)
Maximum UV Index Today