UV Index in Cancun, Mexico

Last updated: May 3, 2025

In Cancun, Mexico, understanding the UV Index is crucial for ensuring your skin stays healthy during your sun-soaked adventures. With staggering UV levels peaking at 13 around noon, awareness of these levels is essential for preventing sunburn and long-term skin damage. The tropical climate of Cancun presents unique risks, with intense sunlight throughout the year, making it imperative for locals and visitors alike to stay informed about daily UV fluctuations. By knowing when the UV Index rises, you can enjoy the beautiful beaches and vibrant culture while keeping your skin protected!

Hourly UV Index in Cancun

Today’s UV Index showcases a dynamic rise and fall in sun intensity throughout the day. Early morning begins with a gentle 1 at 7:00 AM, gradually increasing to a mild 2 by 8:00 AM. As the sun climbs higher, we hit a noticeable 4 at 9:00 AM, but the real surge comes around 10:00 AM, peaking at a powerful 11 by 11:00 AM. The peak intensity reaches an astonishing 13 at both 12:00 PM and 1:00 PM, ideal times for those seeking a sun-soaked experience—though caution is advised! The afternoon brings a gradual decrease, with the index slipping to 8 at 3:00 PM and continuing down to 5 by 4:00 PM. As the day winds down, the UV levels fall back to 1 by the evening, highlighting the importance of timing when enjoying the great outdoors. 🌞

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
10:008very high15 min
11:0011extreme10 min
12:0013extreme10 min
13:0013extreme10 min
14:0011extreme10 min
15:008very high15 min
16:005moderate30 min
17:003moderate30 min
18:001low45 min
19:001low45 min

Monthly UV Index Trends in Cancun

The UV Index demonstrates significant seasonal changes, with high-risk months identified from March to October, where the index reaches extreme levels. In these months, the UV Index peaks at 13 in April, May, and June, corresponding to a burn time of only 10 minutes. Even in January and February, the UV Index remains notably high at 8 and 10, making these months also pose risks. As fall approaches, the index begins to decline, dropping to 11 in October and further down to 8 and 7 during November and December, with longer burn times of 15 and 25 minutes respectively. For both visitors and residents, it is crucial to take precautions during the high-risk months, including applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade, especially during midday hours to reduce the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Cancun, Mexico

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Cancun. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec810131313131212121187
Data source: Statistical UV Index data for Cancun, 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 Cancun UV Index with Other Mexico Cities

The table above highlights how UV exposure in Cancun 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.
Cancun's solar exposure compared to other cities in Mexico. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Cancun810121313131212121187
Guadalajara UVI911141414131313131298
Iztapalapa UVI10121415141414141412108
Ecatepec de Morelos UVI10121415151414131412108
Mexico City UVI10121415151414131412108
Puebla UVI10121415151515141413109