UV Index in San Bartolo, Mexico

Last updated: May 3, 2025

Understanding the UV Index in San Bartolo, Mexico is crucial for safeguarding your skin and overall health. With the intense sun typical of the region's BSh climate, UV levels can soar, particularly during midday hours, reaching a peak of 14 at 1 PM. This sharp increase underscores the importance of UV awareness to prevent sunburn and long-term skin damage. By keeping an eye on the UV Index, residents and visitors alike can make informed decisions about sun protection and outdoor activities, ensuring safe enjoyment of the abundant sunshine that characterizes San Bartolo.

Hourly UV Index in San Bartolo

During the early hours, the UV Index remains relatively low, starting at 1 at 07:00 and advancing to 2 by 09:00. However, as the sun climbs higher, the levels surge dramatically; by 11:00, the index reaches 8, indicating a marked increase in sun exposure risk. The peak intensity occurs at 13:00 and 14:00, where it hits a staggering 14, suggesting that protective measures are essential during these hours. As the afternoon progresses, the UV levels begin to decline, dropping to 5 at 17:00 and returning to 1 by 19:00. This data underscores the importance of being sun-smart during midday hours when UV radiation is at its highest.

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	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	8	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 Bartolo

Throughout the year, seasonal UV changes indicate significant variability in exposure risk. The high-risk months are from March to October, where the UV Index reaches extreme levels, peaking at 14 in both May and July, with burn times of just 10 minutes. January and February also present high risks with very high ratings of 8 and 10, but burn times extend to 15 minutes. As the year progresses, UV exposure diminishes in November (UV Index 9) and December (UV Index 7), where the burn time increases to 15 minutes and 25 minutes, respectively. Visitors and residents are advised to take precautionary measures during the high-risk months by wearing protective clothing, applying sunscreen, and seeking shade when outdoors, especially during midday hours when the sun's rays are most intense.

Monthly Maximum UV Index for San Bartolo, Mexico

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

The table above highlights how UV exposure in San Bartolo 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 Bartolo'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
San Bartolo	8	10	13	13	14	13	14	13	13	12	9	7
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
Puebla UVI	10	12	14	15	15	15	15	14	14	13	10	9