UV Index in Reno, United States

Last updated: August 1, 2025

Understanding the UV Index is crucial for the residents of Reno, United States, where the sun shines bright and strong. Being aware of the UV levels can significantly aid in preventing sunburn and protecting skin health—two vital considerations in a region known for its stunning landscapes and outdoor activities. With a Csb climate, Reno experiences a spectrum of UV exposure risks, peaking mid-day when UV levels can reach a severe 12. This makes familiarizing yourself with the daily UV Index not just smart, but essential for enjoying the beautiful Reno sunshine safely.

Hourly UV Index in Reno

Throughout the day, the UV Index displayed a dynamic pattern, peaking at an intense 12 around 1 PM. Starting off gently at 1 by 7 AM, it climbed steadily, reaching 9 by 11 AM, a clear sign to take precautions. As the sun approached its zenith, the index swelled to its maximum at 12 PM, emphasizing the importance of sun safety. Following the midday peak, the index gradually decreased, dropping to 9 by 3 PM, then tapering off further to 2 by 6 PM and 1 by 7 PM. This data underscores the significance of shielding oneself from the sun's harmful rays during the day, especially when the UV Index is at its highest.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
TimeUVICategoryTime to Burn
07:001low45 min
08:002low45 min
09:003moderate30 min
10:006high25 min
11:008very high15 min
12:0010very high15 min
13:0011extreme10 min
14:0010very high15 min
15:008very high15 min
16:005moderate30 min
17:003moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Reno

Throughout the year, UV Index levels vary significantly, impacting the risk of skin damage from sun exposure. January starts with a moderate UV Index of 4, where burn time is generally 30 minutes, while February sees an increase to 6, classified as high, shortening burn time to 25 minutes. The high-risk months span from March to August, peaking in May and June with an extreme UV Index of 11-12, where burn time dramatically decreases to just 10 minutes. In September, the UV Index drops to 10, still considered very high, with a burn time of 15 minutes. As the year progresses into October, it falls to 7 (high), and finally stabilizes in November and December at indices of 4 and 3, respectively (moderate), allowing for longer burn times of 30 minutes. Visitors and residents are advised to take precautions such as wearing sunscreen, protective clothing, and seeking shade, especially during high-risk months when UV exposure is at its peak.

Monthly Maximum UV Index for Reno, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Reno. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec4689111212119743
Data source: Statistical UV Index data for Reno, based on information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Compare Reno UV Index with Other United States Cities

The table above highlights how UV exposure in Reno compares to other major locations across United States. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Reno's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Los Angeles UVI46891011111010754
Reno46891112121110743
Houston UVI589111112121110975