UV Index Today in Alameda County, California (CA)
Saturday, August 8, 2026 -9:33 AM PDT (GMT-7)
- Home
- United States
- California
- Alameda County
The average maximum UV Index today across 29 locations in Alameda County, California (CA), is 9.3. The highest projected maximum is 9.5 in San Jose at 1:00 PM PDT, while the lowest projected maximum is 8.6 in San Francisco at 2:00 PM PDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 9.4. The highest projected maximum is 9.7 in San Jose at 1:00 PM PDT, and the lowest projected maximum is 9 in San Francisco at 1:00 PM PDT.
29 Places in Alameda County, California (CA)
Maximum UV Index Today