UV Index in Denver

Real-time UV forecast & tanning weather

Current Conditions

Loading live weather data...
0
Low
UV Index
🌡️
20°C
Temperature
☁️
Overcast
Conditions
☀️
Peak Tanning Window 1PM • UV 9

Hourly UV Forecast

☀️ Excellent tanning conditions • 10AM–4PM • 23°C • 9 km/h 🌬️
0
6AM
1
7AM
2
8AM
3
9AM
5
10AM
7
11AM
8
12PM
9
1PM
8
2PM
5
3PM
3
4PM
4
5PM
3
6PM
1
7PM
0
8PM
0
9PM
Low 0–2 Moderate 3–5 High 6–7 Very High 8–10 Extreme 11+

16-Day UV Forecast

9
Mon 1
Excellent
8
Tue 2
Excellent
7
Wed 3
Excellent
9
Thu 4
Excellent
9
Fri 5
Excellent
9
Sat 6
Excellent
9
Sun 7
Excellent
8
Mon 8
Excellent
9
Tue 9
Excellent
8
Wed 10
Excellent
9
Thu 11
Excellent
9
Fri 12
Excellent
8
Sat 13
Excellent
8
Sun 14
Excellent
8
Mon 15
Excellent
0
Tue 16
Good

Location & Climate

Denver's high-altitude location means intense sunshine and high UV levels year-round, even when temperatures are cool, making sun protection crucial. Enjoy the sunny conditions at Washington Park or Cherry Creek State Park, and remember that the thinner atmosphere at this elevation intensifies UV exposure, so timing is key.

Tanning Tips

Denver has a distinct tanning season from April to September. Winter UV is too low for effective tanning.

Weather data by Open-Meteo (CC BY 4.0)

Monthly UV Index in Denver

Average daily maximum UV index by month

Jan
2
Feb
3
Mar
5
Apr
7
May
9
Jun
10
Jul
10
Aug
9
Sep
7
Oct
5
Nov
3
Dec
2
Low Moderate High Very High Extreme

Best Months to Tan in Denver

Based on average UV levels, the best months for tanning in Denver are:

April Great May Excellent June Excellent July Excellent August Excellent September Great

Rating based on average monthly UV index

Related Guides

Tanning in UV 9-10+ → Aggressive Tanning — What to Know → Safe Tanning Tips → Best Time of Day to Tan → How to Get Rid of a Tan →

Tanning Tools & Calculators

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Tanning Time Calculator

Calculate your ideal tanning time based on skin type and UV index

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Sunburn Calculator

Find out how long until you burn based on your skin type and current UV

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Skin Type Quiz

Discover your Fitzpatrick skin type and get personalized tanning advice

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Tanning Routine Creator

Build a personalized tanning plan based on your skin, UV, and experience

Frequently Asked Questions

What is the UV index in Denver right now?
The current UV index in Denver is shown in the live weather section above. UV levels change throughout the day, typically peaking between 11 AM and 2 PM local time.
What is the best month to tan in Denver?
The best months for tanning in Denver are April, May, June, July, August, September, when average UV levels reach 7 or higher.
How long should I tan in Denver?
Tanning time depends on your skin type and the current UV index. For a moderate UV of 9, a person with Skin Type III (medium complexion) can safely tan for about 17 minutes per session. Use our Tanning Calculator for personalized recommendations.
Is it safe to tan in UV index 10?
UV index 10 is classified as Very High. Very High — avoid prolonged sun exposure. Short tanning sessions with SPF 50+ recommended.
When is the peak UV time in Denver?
UV levels in Denver typically peak between 11:00 AM and 2:00 PM local time. The exact peak depends on the season, cloud cover, and altitude.

UV Index in Nearby Cities

9
Aurora
Avg. Peak UV
› 8
Boulder
Avg. Peak UV
› 9
Winter Park
Avg. Peak UV
› 8
Estes Park
Avg. Peak UV
› 8
Fort Collins
Avg. Peak UV
› 9
Colorado Springs
Avg. Peak UV
›

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