San Luis Obispo County, CA: Current UV Index and Hourly Forecast

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As of 2:35 PM PDT on June 10, 2026, all 29 cities in San Luis Obispo County, CA in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Atascadero, CA with a reading of 10.2.

Over the next 24 hours, the highest UV Index reading in San Luis Obispo County, CA is expected to be 10.6 in El Paso de Robles between 1:00 PM - 2:00 PM PDT tomorrow.

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Current UV Index in Cities in San Luis Obispo County, CA

• Arroyo Grande - 9.9
• Atascadero - 10.2
• Avila Beach - 9.8
• Blacklake - 9.9
• California Polytechnic State University - 9.8
• Callender - 9.9
• Cambria - 9.7
• Cayucos - 9.7
• Creston - 10.2
• Edna - 10.1
• El Paso de Robles - 10
• Garden Farms - 10.2
• Grover Beach - 9.9
• Lake Nacimiento - 10
• Los Berros - 9.9
• Los Osos - 9.8
• Los Ranchos - 9.8
• Morro Bay - 9.8
• Nipomo - 9.9
• Oak Shores - 10.1
• Oceano - 9.9
• Pismo Beach - 9.8
• San Luis Obispo - 9.8
• San Simeon - 9.4
• Santa Margarita - 10.2
• Shandon - 10.1
• Templeton - 10.2
• Whitley Gardens - 10.1
• Woodlands - 9.9