UV Index in Columbus, United States

Last updated: August 1, 2025

Understanding the UV Index in Columbus, United States is crucial for everyone who enjoys the sun, as it serves as a vital indicator of potential harm from ultraviolet radiation. Being aware of UV levels can help prevent sunburn and promote long-term skin health by encouraging protective measures during peak exposure times. Columbus, with its Cfa climate, experiences a range of UV ratings throughout the day, peaking around midday with values as high as 11, indicating significant risk for skin damage. Stay informed and protect yourself against the sun's powerful rays to enjoy all that Columbus has to offer safely!

Hourly UV Index in Columbus

The UV Index throughout the day displays a compelling narrative of sun intensity. Starting off at a gentle 1 by 7:00 AM, the index gradually climbs as the day progresses, reaching a moderate 2 by 8:00 AM. The real heat kicks in around 10:00 AM, peaking at an intense 11 between 12:00 PM and 1:00 PM. This marks the optimal time for sun protection, as the UV rays are at their most powerful, presenting a higher risk of harm for unprotected skin. As the afternoon unfolds, the index dips back to 10 by 2:00 PM and continues to decline, settling at a softer 1 by 7:00 PM. It’s a day of vibrant sun energy, highlighting the importance of being sun-smart during those peak hours!

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
14:009very high15 min
15:007high25 min
16:005moderate30 min
17:003moderate30 min
18:001low45 min
19:001low45 min

Monthly UV Index Trends in Columbus

The UV Index varies significantly throughout the year, peaking during the summer months and indicating the best precautions for sun exposure. January and December see moderate UV levels (Index 4), with a burn time of 30 minutes. February marks the transition to high UV levels (Index 7) and a reduced burn time of 25 minutes. The high-risk period begins in March, escalating to very high levels (Index 8 and higher) in April and an extreme UV Index of 11 from May through August. Visitors and residents should take extra precautions during these months, limiting sun exposure to just 10 minutes and using protective clothing, sunscreen, and shade to prevent skin damage. Risk levels decrease in September and October, providing some relief, though caution should still be exercised given the high index readings. In summary, stay vigilant during the peak months of May to August, ensuring safe sun practices to guard against harmful UV radiation.

Monthly Maximum UV Index for Columbus, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Columbus. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119764
Data source: Statistical UV Index data for Columbus, 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 Columbus UV Index with Other United States Cities

The table above highlights how UV exposure in Columbus 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.
Columbus'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
Columbus47810111111119764
Houston UVI589111112121110975