UV Index in San Bartolo, Mexico

Last updated: May 3, 2025

Understanding the UV Index is crucial for anyone spending time in San Bartolo, Mexico. With a climate that can elevate UV exposure levels, being aware of the sun's intensity helps in preventing sunburn and protecting skin health. The UV Index in San Bartolo shows significant peaks, particularly between 12 PM and 2 PM, where values soar to a high of 14, indicating extreme sun risk. By comprehending these levels, residents and visitors can take necessary precautions to enjoy the beautiful weather while safeguarding their skin against harmful rays.

Hourly UV Index in San Bartolo

The UV Index throughout the day presents a clear picture of sunlight intensity and its potential risk. Early risers at 07:00 and 08:00 will experience a mild index of 1, indicating minimal UV exposure. However, a notable increase begins at 09:00 with a jump to 3, suggesting that protective measures like sunscreen and hats should be considered. The UV levels peak dramatically from 11:00 to 14:00, reaching an intense 14 at 13:00—a clear alert for anyone planning outdoor activities to take ample precautions. As the afternoon transitions, the UV Index starts to decline, dropping to 5 by 17:00 and returning to a safe 1 by 19:00. It's essential to stay informed and protect your skin during those solar zenith 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	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, the UV Index demonstrates significant seasonal fluctuations, with the highest values occurring from February to October, indicating an extreme exposure category and a burn time of just 10 minutes. Specifically, March to August records the peak UV Index of 14, suggesting these are critical months for sun safety. Conversely, January, November, and December offer lower UV levels in the very high exposure category, allowing for a more extended burn time of 15 minutes. Visitors and residents are strongly advised to take precautions during high-risk months—primarily from February to October—by wearing protective clothing, applying sunscreen, and seeking shade during peak sun hours to reduce the risk of harmful UV exposure.

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
Guadalajara UVI	9	11	14	14	14	13	13	13	13	12	9	8
San Bartolo	8	11	13	14	14	14	14	14	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