UV Index in Monterrey, Mexico

Last updated: July 2, 2025

In Monterrey, Mexico, being aware of the UV Index is crucial for protecting your skin from harmful sun exposure. As temperatures soar in this arid climate, residents and visitors alike should understand the significance of UV levels, particularly during peak hours when the risk of sunburn is at its highest. With UV Index readings reaching a staggering 15 between 12:00 PM and 1:00 PM, the potential for skin damage is substantial. By staying informed and taking necessary precautions, you can ensure your skin's health while enjoying the vibrant outdoor life in Monterrey.

Hourly UV Index in Monterrey

The UV Index for today reveals a dramatic increase in solar intensity as the day progresses. From a gentle start at 1 around 7:00 AM, it swiftly climbs to a moderate 3 by 9:00 AM. The real peak arrives at 12:00 PM, where it skyrockets to a thrilling 13, reaching a maximum of 15 at 1:00 PM. As the afternoon unfolds, the index begins to taper off, descending to 12 by 3:00 PM, and further dropping to a comfortable 4 by 5:00 PM. The evening offers a welcome respite with values sinking back to 1 by 7:00 PM. This data serves as a reminder to embrace the sun early in the day while taking precautions during those peak hours!

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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	1	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	10	very high	15 min
12:00	13	extreme	10 min
13:00	15	extreme	10 min
14:00	14	extreme	10 min
15:00	12	extreme	10 min
16:00	8	very high	15 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Monterrey

Seasonal changes in the UV Index reveal that the highest risk months for sun exposure are from February through October, where the index consistently reaches extreme levels (12-15) and burn times are as short as 10 minutes. Notably, July witnesses the peak UV Index of 15. Conversely, January, November, and December show a decline, with very high exposure levels, allowing for slightly longer burn times of 15 minutes. Given these conditions, it is essential for both visitors and residents to take proactive sun safety measures during peak months, including wearing sunblock, protective clothing, and seeking shade during the hottest parts of the day.

Monthly Maximum UV Index for Monterrey, Mexico

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Monterrey. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Monterrey, 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 Monterrey UV Index with Other Mexico Cities

The table above highlights how UV exposure in Monterrey 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.

Monterrey's solar exposure compared to other cities in Mexico. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Guadalajara UVI	9	11	14	14	14	13	13	13	13	12	9	8
Iztapalapa UVI	10	12	14	15	14	14	14	14	14	12	10	8
Ecatepec de Morelos UVI	10	12	14	15	15	14	14	13	14	12	10	8
Mexico City UVI	10	12	14	15	15	14	14	13	14	12	10	8
Monterrey	10	12	14	14	14	14	15	14	13	13	10	9
Puebla UVI	10	12	14	15	15	15	15	14	14	13	10	9