UV Index in California, Colombia

Last updated: July 2, 2025

In California, Colombia, understanding the UV Index is crucial for safeguarding your skin and overall health. As the sun’s rays intensify throughout the day, especially between 10 AM and 1 PM when levels peak at 13, awareness can mean the difference between a sunburn and a day of outdoor enjoyment. The region's Cfb climate presents unique challenges, with consistent exposure to UV radiation, making it vital for residents and visitors alike to take precautions. By staying informed about UV levels, you can take proactive measures to protect your skin and enjoy the beautiful sunny days without worry.

Hourly UV Index in California

The UV Index for the day demonstrates a significant rise and fall in intensity, peaking sharply at 11:00 AM and 12:00 PM with a staggering 13. Early in the morning, from 7:00 AM to 8:00 AM, the index starts low at 1, gradually increasing to 3 by 8:00 AM. As the sun climbs higher, a rapid escalation occurs, reaching 10 by 10:00 AM and hitting its maximum at noon. After this peak, the index begins to decline, dropping steadily to 9 at 2:00 PM, and later retreating to 1 by 5:00 PM. By 7:00 PM, the UV Index has faded to 0, reminding us of the crucial midday hours to protect our skin from UV exposure.

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
08:003moderate30 min
09:007high25 min
10:0010very high15 min
11:0013extreme10 min
12:0013extreme10 min
13:0012extreme10 min
14:009very high15 min
15:006high25 min
16:003moderate30 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in California

The UV Index exhibits extreme levels throughout the year, with notable peaks occurring from March to April, where it reaches 15 to 16 and maintains a high level into early May. Visitors and residents should be particularly vigilant during February and March, when the index rises to 14 and 15, making these some of the highest-risk months for sun exposure, with a dangerously short burn time of just 10 minutes year-round. As such, it is crucial to adopt proactive sun protection measures, including using sunscreen, wearing protective clothing, and seeking shade, especially in midday hours. Even during the months of October and November, when the index decreases to 13 and 12, respectively, the risk remains significant, urging continued caution to prevent sun damage.

Monthly Maximum UV Index for California, Colombia

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in California. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec121415161514131314131211
Data source: Statistical UV Index data for California, 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 California UV Index with Other Colombia Cities

The table above highlights how UV exposure in California compares to other major locations across Colombia. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
California's solar exposure compared to other cities in Colombia. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Barranquilla UVI111214141312131313131110
Cartagena UVI111113151313121313131110
California121415161514131314131211
Medellin UVI141517161614141514141312
Cali UVI151617171514141415141312
Bogota UVI151618181715151615151413