UV Index in San Jeronimo Xayacatlan, Mexico

Last updated: August 1, 2025

Understanding the UV Index in San Jeronimo Xayacatlan, Mexico, is essential for maintaining healthy skin and preventing sunburn, especially given the region's BSh climate, which brings high solar exposure. With UV levels peaking at a striking 15 around midday, it becomes crucial for residents and visitors alike to be aware of these measurements to effectively safeguard against harmful effects like skin damage and increased cancer risk. By recognizing the fluctuating UV index throughout the day, especially the rapid rise between 10:00 AM and 2:00 PM, individuals can take proactive steps to enjoy the sun safely while protecting their skin health.

Hourly UV Index in San Jeronimo Xayacatlan

As the sun climbs higher in the sky, the UV Index reflects its strength, peaking dramatically around midday. Starting the day with a mild UV Index of 1 at 07:00, the intensity begins to increase steadily. By 10:00, it escalates to 5, but the real surge occurs between 11:00 and 14:00, where the index skyrockets to an impressive 15 at 14:00. This is a crucial reminder for outdoor enthusiasts to protect themselves during these hours, as the UV levels are at their highest. After reaching its zenith, the index gradually descends, dipping to 9 by 16:00 and falling to a safer 3 by 18:00, leaving the evenings more benign with a last index of 1 at 19:00. Stay safe and enjoy the sunshine wisely!

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	12	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	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in San Jeronimo Xayacatlan

The UV Index experiences significant seasonal fluctuations, with the highest levels occurring from March to October. During these months, particularly from February through October, the UV Index frequently reaches extreme levels, demanding caution from both visitors and residents. March, April, May, June, July, August, and September all see an index of 14 or higher, with July peaking at 15. The burn time during these high-risk months is notably short—just 10 minutes of unprotected exposure can lead to harmful skin effects. Consequently, it is crucial for everyone to wear sunscreen, seek shade, and don protective clothing, particularly during these peak months. Conversely, January, November, and December display lower UV levels with a very high to high exposure category, allowing for slightly longer burn times of 15 minutes; however, caution is still advised.

Monthly Maximum UV Index for San Jeronimo Xayacatlan, Mexico

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

The table above highlights how UV exposure in San Jeronimo Xayacatlan 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 Jeronimo Xayacatlan'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
San Jeronimo Xayacatlan	10	12	14	14	14	14	15	14	14	12	10	9
Puebla UVI	10	12	14	15	15	15	15	14	14	13	10	9