UV Index in San Lucas el Viejo, Mexico

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors of San Lucas el Viejo, Mexico, where the sun’s rays can be especially intense. With a climate classified as Cwb, this picturesque town experiences elevated UV levels, especially around midday, with peaks reaching a staggering 15 on the UV scale. Awareness of these levels is essential not just for sunburn prevention but also for maintaining long-term skin health. By understanding the UV exposure risks—especially between 10 AM and 3 PM—you can take proactive measures to protect yourself and enjoy the sunny days in San Lucas el Viejo safely.

Hourly UV Index in San Lucas el Viejo

The UV Index data paints a vibrant picture of sunlight intensity throughout the day. Beginning with a mild UVI of 1 at 7:00 AM, the day starts gently, gradually climbing to 3 by 9:00 AM. However, as the sun reaches its zenith, the UVI skyrockets, peaking at an intense 15 between 1:00 PM and 2:00 PM. During these hours, it's crucial to take protective measures against harmful UV rays. As the sun begins to set, the index dips, dropping to 5 by 5:00 PM and returning to a safer 1 by 7:00 PM. This fluctuation highlights the importance of staying sun-smart during peak hours, especially between 11:00 AM and 2:00 PM when the UVI 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
08:001low45 min
09:003moderate30 min
10:006high25 min
11:0010very high15 min
12:0013extreme10 min
13:0015extreme10 min
14:0015extreme10 min
15:0013extreme10 min
16:009very high15 min
17:005moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in San Lucas el Viejo

The UV Index exhibits significant seasonal variation, with particularly high levels from February to September, where it consistently reaches extreme levels. The highest recorded UV Index occurs in March, April, May, June, and July at 15, signaling a 10-minute burn time for exposed skin. Visitors and residents should be especially vigilant during these months, taking precautions to protect their skin from potential sunburn and long-term damage. January, November, and December experience slightly lower UV Index values of 10 and 9, categorized as very high, allowing for a slightly longer burn time of 15 minutes. Regardless of the month, it is advisable to wear sunscreen, protective clothing, and sunglasses to ensure safety from harmful UV exposure throughout the year.

Monthly Maximum UV Index for San Lucas el Viejo, Mexico

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in San Lucas el Viejo. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec10121415151515141412109
Data source: Statistical UV Index data for San Lucas el Viejo, 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 San Lucas el Viejo UV Index with Other Mexico Cities

The table above highlights how UV exposure in San Lucas el Viejo compares to other major locations across Mexico. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
San Lucas el Viejo's solar exposure compared to other cities in Mexico. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Guadalajara UVI911141414131313131298
Iztapalapa UVI10121415141414141412108
Ecatepec de Morelos UVI10121415151414131412108
Mexico City UVI10121415151414131412108
Puebla UVI10121415151515141413109
San Lucas el Viejo10121415151515141412109