UV Index in Reynosa, Mexico

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents and visitors of Reynosa, Mexico, where the sun shines brightly throughout much of the year. With a BSh climate, the region often experiences intense sunlight, particularly during the midday hours, where UV levels can reach a peak of 12—indicating a very high risk of harm from unprotected sun exposure. Being aware of these UV levels is essential for preventing sunburn and protecting skin health in such a sun-drenched environment. By staying informed about the UV Index, you can enjoy the outdoors safely while minimizing potential skin damage, ensuring your time in this vibrant city remains pleasant and healthy.

Hourly UV Index in Reynosa

As the sun rises, the UV Index slowly climbs, starting at a low 1 at 07:00 and 08:00. By 09:00, it slightly increases to 2. However, the real intensity kicks in as the day progresses, peaking at an impressive 12 between 13:00 and 14:00. This is the critical time when sun protection is essential, given the dangerous exposure level. As the afternoon wanes, the index starts to decrease, dropping to 10 by 15:00 and further declining to 5 at 17:00. Finally, as the sun sets, it returns to a mild 1 by 19:00. Take note of these fluctuations, as they are crucial for staying safe under the sun!

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
09:002low45 min
10:004moderate30 min
11:007high25 min
12:0010very high15 min
13:0012extreme10 min
14:0012extreme10 min
15:0010very high15 min
16:007high25 min
17:004moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Reynosa

The UV Index exhibits significant seasonal variation, with the highest values between April and September, when it reaches an extreme level of 12. Specifically, the high-risk months for UV exposure are February through September, with March also showing a very high index of 10. During these months, especially from April to August, the recommended burn time is sharply reduced to just 10 minutes, indicating the urgent need for protection against sun exposure. Residents and visitors are advised to take extra precautions such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours to minimize the risk of skin damage. As the seasons change, UV levels gradually decrease in October, with notable relief in the winter months of November and December, where the burn time increases back to 25 minutes.

Monthly Maximum UV Index for Reynosa, Mexico

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Reynosa. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec6910121212121211976
Data source: Statistical UV Index data for Reynosa, 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 Reynosa UV Index with Other Mexico Cities

The table above highlights how UV exposure in Reynosa 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.
Reynosa's solar exposure compared to other cities in Mexico. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Reynosa6910121212121211976
Guadalajara UVI911141414131313131298
Iztapalapa UVI10121415141414141412108
Ecatepec de Morelos UVI10121415151414131412108
Mexico City UVI10121415151414131412108
Puebla UVI10121415151515141413109