UV Index in Denver, Colorado, United States

· America/Denver

3.8
Moderate · clear-sky maximum Tuesday, October 20, 2026

At solar noon (12:44:47 PM) the sun reaches 39.7° above the horizon in Denver. Without clouds, that corresponds to a maximum UV index of about 3.8 (moderate). Clouds usually lower the real value; snow, sand, water and altitude can raise it.

☀️ Sun Safety: When the UV index is high, protect yourself with sunscreen, shade, and a hat. Values of 6 or more indicate increased sunburn risk!

UV index in Denver, next 14 days

DateSun at noonClear-sky maxForecast max
39.7° 3.8 Moderate —
39.4° 3.7 Moderate —
39.0° 3.7 Moderate —
38.7° 3.6 Moderate —
38.3° 3.5 Moderate —
38.0° 3.5 Moderate —
37.6° 3.4 Moderate —
37.3° 3.3 Moderate —
37.0° 3.3 Moderate —
36.6° 3.2 Moderate —
36.3° 3.2 Moderate —
36.0° 3.1 Moderate —
35.7° 3.0 Moderate —
35.4° 3.0 Moderate —

Clear-sky values are calculated from the sun's height at solar noon (cloud-free sky, average ozone). Forecast values from Open-Meteo include clouds and load in your browser.

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The UV index in Denver measures the intensity of ultraviolet radiation reaching the ground. Values below 3 are considered low risk, while 6 and above require sun protection such as sunscreen, sunglasses, and shade. The clear-sky value shows how strong the sun can get on each day; the forecast shows what is expected with clouds. See today's sunrise and sunset times for Denver or discover the best light for photos during the golden hour in Denver.

About Denver

Denver is the capital of Colorado and a consolidated city-county in the United States. It sits at an elevation of 1609 metres and covers an area of 401.4 square kilometres. The city has existed as a municipality since 1858 and, as of 2020, had a population of 715,522. The South Platte River and Cherry Creek both flow through the city. Denver International Airport serves as a primary transport hub, while the University of Denver functions as a private research university. Ball Arena is situated within the city as well. Denver maintains twin town relationships with La Paz, Nairobi, Brest, Potenza, and Cuernavaca.

AI-assisted description based on geographic data and editorial notes.