UV Index in Columbia, United States

Last updated: July 2, 2025

In Columbia, United States, staying informed about the UV Index is essential for safeguarding your skin's health and preventing sunburn. With the region's Cfa climate, characterized by warm summers and moderate UV exposure, understanding daily UV levels becomes crucial, especially during peak hours around noon when the index can soar to 11. By being aware of these UV levels, you can take proactive measures to protect yourself and enjoy the beautiful sunny days safely. Remember, knowledge is your best defense against harmful sun effects!

Hourly UV Index in Columbia

The UV Index for today starts off mild, peaking at 1 by 7:00 AM, then gradually increases as the sun climbs higher in the sky. By 10:00 AM, it hits 6, indicating a moderate level of UV exposure. The intensity keeps climbing, reaching a maximum of 11 at 1:00 PM, making this the most crucial time for sun safety. As the afternoon progresses, the index begins to wane, dropping to 8 by 3:00 PM, then further to 2 by the evening, signalling a return to a safer UV environment. Remember, protecting your skin is vital during those peak hours of 10 AM to 2 PM!

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
09:004moderate30 min
10:006high25 min
11:008very high15 min
12:0010very high15 min
13:0011extreme10 min
14:0010very high15 min
15:008very high15 min
16:006high25 min
17:003moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Columbia

As the seasons change, so does the UV Index, significantly impacting sun exposure and skin health. Notably, high-risk months occur between March and August, where UV levels reach their peak, especially in May and July with extreme categories (11), indicating a burn time as short as 10 minutes. From February to October, sun exposure should be approached with caution, as the index consistently marks very high to extreme levels. It is crucial for both visitors and residents to prioritize sun safety during these months by seeking shade, wearing protective clothing, and applying sunscreen regularly. In contrast, the lower-risk months of January, November, and December present moderate levels, but it is always wise to remain vigilant about UV exposure.

Monthly Maximum UV Index for Columbia, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Columbia. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec46810111011109753
Data source: Statistical UV Index data for Columbia, 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 Columbia UV Index with Other United States Cities

The table above highlights how UV exposure in Columbia 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.
Columbia'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
Columbia46810111011109853
Los Angeles UVI46891011111010754
Houston UVI589111112121110975