UV Index in Lima, United States

Last updated: June 2, 2025

Understanding the UV Index in Lima, United States, is crucial for protecting your skin and overall health. With UV levels peaking at a striking 10 during midday hours, awareness of these harmful rays can significantly aid in sunburn prevention and long-term skin care. Lima's Dfb climate, characterized by its varying seasonal temperatures and cloud cover, often leads to underestimating UV exposure risks. By keeping an eye on the UV Index, you can enjoy the sunny days while safeguarding your skin from detrimental effects. Stay informed, stay protected!

Hourly UV Index in Lima

The UV Index throughout the day paints a clear picture of sun intensity. Starting from a gentle 1 at 07:00, the UV levels gradually rise, peaking at an intense 10 by 13:00. This midday spike calls for caution as sun exposure increases significantly. As the afternoon progresses, from 14:00 to 15:00, the index slightly dips to 9 and 8, respectively, before gradually falling off to 6 at 16:00 and down to a mellow 1 by 19:00. For outdoor enthusiasts, the window between 11:00 and 13:00 is the time to enjoy the sun while remaining mindful of skin protection.

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
10:005moderate30 min
11:008very high15 min
12:009very high15 min
13:0010very high15 min
14:009very high15 min
15:008very high15 min
16:006high25 min
17:004moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Lima

Throughout the year, UV Index levels exhibit significant seasonal fluctuations, with maximum exposure typically occurring between April and August. During this peak period, the UV Index reaches very high levels (8-10), with a notably short burn time of just 15 minutes, making May and June the highest risk months for skin damage. Conversely, the winter months (January, February, and December) present a much lower risk, with UV indexes classified as low to moderate. Visitors and residents are strongly advised to take precautions during high-risk months by applying sunscreen, wearing protective clothing, and seeking shade, especially during midday hours when UV exposure is most intense. Remember, even on cloudy days, UV rays can still cause harm, so it’s essential to stay vigilant year-round.

Monthly Maximum UV Index for Lima, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Lima. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec24681010997532
Data source: Statistical UV Index data for Lima, 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 Lima UV Index with Other United States Cities

The table above highlights how UV exposure in Lima 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.
Lima's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Lima24581010997532
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Los Angeles UVI46891011111010754
Houston UVI589111112121110975