UV Index Today in California (CA)
Tuesday, October 13, 2026 -2:22 PM PDT (GMT-7)
- Home
- United States
- California
The average maximum UV Index today across 1,212 locations in California (CA), is 5.5. The highest projected maximum is 6.7 in Big Bear City at 1:00 PM PDT, while the lowest projected maximum is 3.7 in Smith River at 2:00 PM PDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 5.7. The highest projected maximum is 7 in Big Bear City at 1:00 PM PDT, and the lowest projected maximum is 4.3 in Crescent City at 1:00 PM PDT.
58 Counties in California (CA)
Average Maximum UV Index Today
- Alameda County - 5.3
- Butte County - 4.8
- Contra Costa County - 5.2
- Fresno County - 5.3
- Kern County - 5.8
- Los Angeles County - 6.1
- Marin County - 5.2
- Merced County - 5.2
- Monterey County - 5.6
- Orange County - 6
- Placer County - 5.1
- Riverside County - 6.2
- Sacramento County - 4.9
- San Bernardino County - 6.1
- San Diego County - 6.1
- San Francisco County - 5.3
- San Joaquin County - 5.1
- San Luis Obispo County - 5.9
- San Mateo County - 5.4
- Santa Barbara County - 6.1
- Santa Clara County - 5.5
- Santa Cruz County - 5.5
- Solano County - 5.1
- Sonoma County - 5.1
- Stanislaus County - 5.2
- Tulare County - 5.4
- Ventura County - 6.1
- Yolo County - 4.9
1212 Places in California (CA)
Maximum UV Index Today
- Anaheim - 6.1
- Bakersfield - 5.7
- Chula Vista - 6.2
- Fontana - 6.1
- Fremont - 5.4
- Fresno - 5.2
- Irvine - 6.1
- Long Beach - 6
- Los Angeles - 5.9
- Modesto - 5.2
- Moreno Valley - 6.1
- Oakland - 5.3
- Oxnard - 5.9
- Riverside - 6.1
- Sacramento - 4.9
- San Bernardino - 6.4
- San Diego - 6.2
- San Francisco - 5.3
- San Jose - 5.5
- Santa Ana - 6
- Santa Clarita - 6.2
- Stockton - 5.1