San Diego County, CA: Current UV Index and Hourly Forecast

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As of 2:12 PM PST on February 1, 2026, all 56 cities in San Diego County, CA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Campo, CA with a reading of 2.8.

Over the next 24 hours, the highest UV Index reading in San Diego County, CA is expected to be 4.5 in Potrero between 12:00 PM - 1:00 PM PST tomorrow.

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Current UV Index in Cities in San Diego County, CA

• Alpine - 2.7
• Bonita - 2.7
• Bonsall - 2.6
• Borrego Springs - 2.6
• Bostonia - 2.7
• Boulevard - 2.8
• Camp Pendleton South - 2.6
• Campo - 2.8
• Carlsbad - 2.7
• Casa de Oro-Mount Helix - 2.7
• Chula Vista - 2.7
• Coronado - 2.7
• Crest - 2.7
• Del Dios - 2.7
• Del Mar - 2.7
• Descanso - 2.7
• El Cajon - 2.7
• Elfin Forest - 2.7
• Encinitas - 2.7
• Escondido - 2.7
• Eucalyptus Hills - 2.7
• Fairbanks Ranch - 2.7
• Fallbrook - 2.6
• Granite Hills - 2.7
• Harbison Canyon - 2.7
• Harmony Grove - 2.7
• Hidden Meadows - 2.7
• Imperial Beach - 2.7
• Jacumba - 2.8
• Jamul - 2.7
• Julian - 2.8
• La Mesa - 2.7
• La Presa - 2.7
• Lake San Marcos - 2.7
• Lakeside - 2.7
• Lemon Grove - 2.7
• Mount Laguna - 2.8
• National City - 2.7
• Oceanside - 2.6
• Pala - 2.7
• Pine Valley - 2.8
• Potrero - 2.8
• Poway - 2.7
• Rainbow - 2.6
• Ramona - 2.7
• Rancho San Diego - 2.7
• Rancho Santa Fe - 2.7
• San Diego - 2.7
• San Diego Country Estates - 2.7
• San Marcos - 2.6
• Santee - 2.7
• Solana Beach - 2.7
• Spring Valley - 2.7
• Valley Center - 2.7
• Vista - 2.6
• Winter Gardens - 2.7