As of 3:48 AM PDT on April 25, 2025, all 29 cities in San Luis Obispo County, CA in our database have a UV Index reading of 0, indicating no radiation from the sun.
Over the next 24 hours, the highest UV Index reading in San Luis Obispo County, CA is expected to be 7.6 in Santa Margarita between 1:00 PM - 2:00 PM PDT today.
Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
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Color | |||||
Risk | Low | Moderate | High | Very High | Extreme |