UV Index in Cerro Alto, Mexico

Last updated: July 2, 2025

In Cerro Alto, Mexico, being aware of the UV Index can be a game-changer for your skin health and overall well-being. Understanding UV levels is crucial to prevent sunburn and reduce the risk of long-term skin damage, especially in a region where the climate is classified as Cwb, which offers both warmth and heightened UV exposure. From the peak UV index of 14 around midday to levels that dip in the late afternoon, knowing when to take protective measures is essential for enjoying the sun safely in this beautiful area. Stay informed, stay protected, and make the most of your time outdoors!

Hourly UV Index in Cerro Alto

As the sun rises, the UV Index gradually climbs, starting at 0 at 7:00 AM—a safe time for outdoor activities. By 9:00 AM, it reaches 2, indicating a mild risk. However, as the day progresses, the intensity peaks at 12:00 PM with a high of 11, and again at 1:00 PM and 2:00 PM, both hitting an alarming 14. This represents a very high risk of harm from unprotected sun exposure, urging caution for those outdoors. The afternoon sees a slight drop, with the index falling to 9 at 4:00 PM and tapering off as the sun begins to set, closing out the day at 1 by 7:00 PM. Remember to stay protected 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	0	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	5	moderate	30 min
11:00	8	very high	15 min
12:00	11	extreme	10 min
13:00	14	extreme	10 min
14:00	14	extreme	10 min
15:00	12	extreme	10 min
16:00	9	very high	15 min
17:00	6	high	25 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in Cerro Alto

Throughout the year, UV exposure varies significantly, with the highest risk months being March through September, where the UV Index frequently reaches extremes of 13 to 14, indicating a burn time as short as 10 minutes. January and December experience a drop in UV levels, but still pose a risk with indices of 10 and 8, respectively. Residents and visitors are strongly advised to take precautions from February to October, including applying sunscreen, wearing protective clothing, and seeking shade during peak hours to mitigate the risks associated with high UV exposure. Always remember that even on cloudy days, harmful UV rays can penetrate the atmosphere, so protection is essential year-round.

Monthly Maximum UV Index for Cerro Alto, Mexico

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Cerro Alto. 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 Cerro Alto, 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 Cerro Alto UV Index with Other Mexico Cities

The table above highlights how UV exposure in Cerro Alto 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.

Cerro Alto'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
Cerro Alto	10	11	13	14	13	14	14	13	14	11	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
Puebla UVI	10	12	14	15	15	15	15	14	14	13	10	9