UV Index Forecast for Napa County, California
Below is an interactive map of Napa County, ca, USA. The markers on the map identify large, populated cities in Napa County. If you hover over a marker, it will display the city name and the current UV index. The color of the city markers also references the current UV risk level.
The city with the highest UV index this hour (6:00 am) in Napa County, ca is Rutherford at 0. Today, the peak UV index for Napa County will be in St. Helena, ca around 1:00 pm at 3.5 (Moderate). Over the next five days the peak UV index in Napa County will be 3.5 (Moderate) and will occur on Wednesday, October 30th in St. Helena, ca around 1:00 pm.
| Range | 1-2 | 3-5 | 6-7 | 8-10 | 11+ |
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |
Last Updated 57 minutes ago
UV Index Forecast by City in Napa County
Below is a list of cities in Napa County, ca where we track and forecast the UV index. Click on a city name to get the current UV index, hourly UV index for the day and the next five days.