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Denver UV Index and Hourly Forecast

Live UV via WeatherAPI.com · Denver
10
Very High
typical
Night

Night in Denver: current solar UV is 0. Today's forecast peaks near UV 9 at 1pm.

☀ Tan window 8:00–10:00☀ Tan window 17:30–19:00Peak 1pm
Live forecast · WeatherAPI.com updated 2026-09-04 20:45 local time
Typical day · sunrise → sunset
5:32Solar noon20:30
Live hourly sample: 8am UV 1 · 9am UV 2 · 10am UV 4 · 11am UV 6 · 12pm UV 8

UV index in Denver today

Before a usable live response loads, the dial above shows a labelled typical reference for Denver (39.74°N, 104.99°W). 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. When live hydration succeeds, the card replaces the reference with a current observation and forecast. Use the verified current value, not the temperature, to decide whether it is a tan window or a cover-up hour. Denver elevation can strengthen UV relative to lower locations at the same latitude, so use the measured index rather than temperature as the exposure guide.

Night in Denver: current solar UV is 0. Today's forecast peaks near UV 9 at 1pm. Live forecast · WeatherAPI.com updated 2026-09-04 20:45 local time

See also: Best time to tan in Denver.

Planning a wider trip? See UV index across Coloradofor the state hub and linked city forecasts.

Plan from this UV reading

Check UV for my current locationCheck current and hourly UV near you before comparing it with Denver.Tanning calculatorUse Denver's UV with skin type, SPF, and an early stop cue.Build a tanning routineSave skin-type, SPF, side-change, and early stop reminders around this UV reading.UV Index appCarry current UV, hourly peaks, freshness, and SPF reminders into the app.Best tanning timer appTurn side changes, SPF timing, and stop cues into a UV-aware timer.

Typical 3-day UV reference

Illustrative clear-sky pattern — not a live forecast. A usable response can replace it with the provider's 3-day forecast.

UV in nearby cities

11
UV index in Colorado Springspeak 1pm
12
UV index in Albuquerquepeak 1pm
9
UV index in Salt Lake Citypeak 1:30pm
12
UV index in El Pasopeak 1:05pm
11
UV index in Scottsdalepeak 12:40pm
11
UV index in Phoenixpeak 12:30pm
11
UV index in Las Vegaspeak 1pm
11
UV index in Tucsonpeak 12:30pm

Source & freshness

This page starts with labelled typical clear-sky values for Denver. The card attempts a current UV and forecast request through TanPilot's proxy and replaces reference values only after a usable response; failed requests leave the reference label visible.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.