UV index in Denver today
On a clear day Denver peaks near 1pm at about 10 — the very high band — then eases toward sunset. The dial shows the live reading; morning and late-afternoon windows stay gentler for a careful tan.
UV index in Denver today
The dial above shows Denver's live UV (39.74°N, 104.99°W) via TanPilot's UV proxy. On a typical clear day the index builds through the morning and peaks near 1pm at about 10 — the very high band — before easing off toward sunset at 20:30. Use the current value, not the temperature, to decide whether it is a tan window or a cover-up hour. A mile of altitude raises UV roughly 6% per 1,000 ft — readings run higher than the heat suggests.
See also: Best time to tan in Denver.
7-day UV outlook
Typical clear-sky pattern — the app refreshes this from your live forecast.
UV in nearby cities
Source & freshness
Live UV via TanPilot's UV proxy, refreshed regularly; the timeline and hourly curve start from typical clear-sky values for Denver and update with the live reading. Estimates only — not medical advice.
Questions
Is it safe to tan in Denver at midday?
Around midday Denver typically reaches UV 10 (very high), strong enough to burn unprotected skin quickly. It is better used as shade-first time. For a gentler session, aim for the lower-UV windows around 8:00–10:00 or 17:30–19:00, and use broad-spectrum SPF. These are estimates, not medical advice.
When is UV lowest in Denver?
UV is lowest near sunrise (5:32) and sunset (20:30) and climbs to its peak around 1pm. The morning and late-afternoon tan windows — about 8:00–10:00 and 17:30–19:00 — are the lower-UV parts of daylight that are still warm enough to be useful for a careful tan.